[go: up one dir, main page]

WO2021043100A1 - Dispositif de consommation d'énergie à courant continu distribué, procédé de commande associé et module de commande associé - Google Patents

Dispositif de consommation d'énergie à courant continu distribué, procédé de commande associé et module de commande associé Download PDF

Info

Publication number
WO2021043100A1
WO2021043100A1 PCT/CN2020/112456 CN2020112456W WO2021043100A1 WO 2021043100 A1 WO2021043100 A1 WO 2021043100A1 CN 2020112456 W CN2020112456 W CN 2020112456W WO 2021043100 A1 WO2021043100 A1 WO 2021043100A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
modules
sub
consuming
energy consumption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/112456
Other languages
English (en)
Chinese (zh)
Inventor
王仙荣
李钢
邹凯凯
李建春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NR Electric Co Ltd
NR Engineering Co Ltd
Original Assignee
NR Electric Co Ltd
NR Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NR Electric Co Ltd, NR Engineering Co Ltd filed Critical NR Electric Co Ltd
Publication of WO2021043100A1 publication Critical patent/WO2021043100A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/36—Arrangements for transfer of electric power between AC networks via a high-tension DC link
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]

Definitions

  • This application relates to the technical field of flexible direct current transmission of electric power systems, and in particular to a distributed direct current energy consumption device and its control method and control device.
  • the direct current energy consumption device is the vital equipment.
  • DC energy consuming devices are mainly used in the application scenarios of new energy power generation and transmission. If the generating end is an inertial power source similar to wind power, when the receiving end fails, because the power cannot be sent, energy will be accumulated on the DC side, resulting in a DC transmission line The voltage rises, causing harm to the safe operation of the equipment.
  • Distributed DC energy consuming devices need to perform voltage equalization control on the energy consuming sub-modules, that is, when the voltage of a certain energy consuming sub-module is lower than a certain lower limit or higher than a certain upper limit, it needs to be forced to withdraw or invest in order to ensure the energy consuming sub-modules.
  • the module voltage is within normal fluctuations.
  • the number of energy-consuming sub-modules to be input changes greatly, it means that some energy-consuming sub-modules need to be forcibly input or withdrawn when the voltage of some energy-consuming sub-modules does not reach the voltage limit, thereby increasing the switching frequency of the sub-modules.
  • the prior art simply adjusts the difference between the DC voltage and the target value as PI control, but the PI parameter adjustment is more troublesome, and basically does not change once it is selected.
  • PI control the difference between the DC voltage and the target value
  • the PI parameter adjustment is more troublesome, and basically does not change once it is selected.
  • it is easy to cause good performance under one working condition or fault type, and poor performance under another working condition or performance.
  • the technical solution disclosed in the document is to detect the sending end power as the initial value when the fault occurs.
  • the acquisition of this power value generally depends on the real-time communication between the energy consumption device control system and the upper system such as PCP, and then the sending end power
  • the ratio of the power of a single energy-consuming component is used as the initial value.
  • This scheme takes into account the adjustment under different working conditions to a certain extent, but does not consider the influence of the receiving end power limitation, let alone the influence of the receiving end's different fault types on the receiving end power limitation. For example, when the load is full power transmission, it is obviously a single-phase short circuit.
  • the embodiment of the present application provides a method for controlling a distributed DC energy consuming device, including: calculating a first number of energy consuming sub-modules to be input based on the power consumption of the distributed DC energy consuming device; and measuring based on the DC bus voltage Value and the DC bus voltage control target value, calculate the second number of energy-consuming sub-modules that need to be invested; use the sum of the first number and the second number as the total number of energy-consuming sub-modules that need to be invested; The total number of energy-consuming sub-modules that need to be input is controlled to input or exit the energy-consuming sub-modules.
  • the power consumption of the device is equal to the product of the current of the branch where the device is located and the DC voltage.
  • the calculating the first number of energy-consuming sub-modules to be input based on the power consumption of the device includes: dividing the power consumption of the device by an average of when a single energy-consuming sub-module is put into operation The power is multiplied by the weighting coefficient to obtain the first number of energy-consuming sub-modules that need to be invested.
  • the calculating the second number of energy consumption sub-modules to be invested based on the DC bus voltage measurement value and the DC bus voltage control target value includes: comparing the DC bus voltage measurement value with the DC bus voltage The control target value is subtracted to obtain a voltage difference value; the voltage difference value is multiplied by a proportional coefficient to obtain the second number of energy consumption sub-modules that need to be invested.
  • the proportional coefficient is calculated according to the following steps: when U d ⁇ U r , When U d ⁇ U r , Among them, U d is the measured value of the DC bus voltage, U r is the DC bus voltage control target value, k u is the proportional coefficient, n is the minimum total number of energy consumption sub-modules, and n 1p is the energy consumption that needs to be invested
  • U dmax is the allowable upper limit of DC bus voltage
  • U dmin is the allowable lower limit of DC bus voltage
  • n is the minimum total number of energy-consuming sub-modules
  • n P dmax /P cm
  • P dmax is the maximum DC transmission power
  • P cm is the average power when a single energy-consuming sub-module is put into operation.
  • the calculating the second number of energy consumption sub-modules to be invested based on the DC bus voltage measurement value and the DC bus voltage control target value includes: comparing the DC bus voltage measurement value with the DC bus voltage The control target value is subtracted to obtain a voltage difference value; the voltage difference value is adjusted by a proportional integral regulator to obtain the second number of energy consumption sub-modules that need to be invested.
  • the controlling the input or withdrawal of the energy consumption submodules based on the total number of the energy consumption submodules to be input includes: sorting the voltages of the energy consumption submodules; When the total number of energy-consuming sub-modules invested is greater than the actual number of energy-consuming sub-modules that have been invested, the energy-consuming sub-modules that have not been invested are sequentially invested in accordance with the voltage; when the energy-consuming sub-modules that need to be invested When the total number of is less than the actual number of energy-consuming sub-modules that have been put into use, the energy-consuming sub-modules that have been put in more frequently are withdrawn in order according to the voltage.
  • the energy consumption submodule when the voltage of the energy consumption submodule is lower than the lower threshold or higher than the upper threshold, the energy consumption submodule is replaced.
  • the distributed direct current energy consumption device includes a plurality of the energy consumption sub-modules connected in series.
  • An embodiment of the present application also provides a control device for a distributed DC energy consumption device, including a power calculation unit, a voltage calculation unit, a total amount calculation unit, and a control unit.
  • the power calculation unit is based on the distributed DC energy consumption device. For power consumption, calculate the first number of energy-consuming sub-modules to be input; the voltage calculation unit calculates the second number of energy-consuming sub-modules to be input based on the DC bus voltage measurement value and the DC bus voltage control target value;
  • the total quantity calculation unit uses the sum of the first quantity and the second quantity as the total quantity of energy-consuming sub-modules that need to be input; the control unit controls the input or output based on the total number of energy-consuming sub-modules that need to be input. Exit the energy consumption sub-module.
  • the embodiment of the present application also provides a distributed DC energy consuming device, which includes the above-mentioned control module and a plurality of energy consuming sub-modules connected in series.
  • the number of energy-consuming sub-modules is divided into a first number based on power calculation and a second number based on voltage calculation.
  • the second number based on voltage calculation can guarantee The instantaneous control capability of the energy consuming device at the moment of failure.
  • the first quantity based on the power calculation can well reflect the abundant power that the energy consuming device needs to actually consume, ensuring that the energy consuming sub-module needs to be put into operation.
  • Proper adjustments around the power point can ensure that the change rate of the energy-consuming sub-modules to be input is maintained at a small value, thereby effectively reducing the switching control frequency of the energy-consuming sub-modules, which can not only ensure the instantaneous control capability of the energy-consuming device at the moment of failure, but also Reduce the rate of change in the number of energy-consuming sub-modules that need to be invested during the steady state of the fault.
  • FIG. 1 is a schematic diagram of the structure of a wind power transmission direct current system provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of the structure of a distributed DC energy consumption device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the structure of an energy consumption sub-module provided by an embodiment of the present application.
  • FIG. 4 is a functional block diagram of a control module of a distributed DC energy consumption device provided by an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a method for controlling a distributed DC energy consuming device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of the structure of a wind power transmission direct current system provided by an embodiment of the present application.
  • the offshore converter station 100 converts wind power from alternating current to direct current and transmits it to the onshore converter station 300.
  • the distributed DC energy consumption device 200 is installed on the DC side close to the onshore converter station 300.
  • the AC side 400 of the land-based converter station is the power receiving end.
  • the distributed direct current energy consumption device 200 is a vital equipment.
  • the distributed DC energy consumption device 200 is mainly applied to the application scenarios of new energy power generation and transmission. If the power generation end is an inertial power source similar to wind power, when the power receiving end fails, because the power cannot be sent, energy will be accumulated on the DC side, causing The voltage rise of the DC transmission line is harmful to the safe operation of the equipment.
  • the distributed DC energy consuming device 200 needs to perform voltage equalization control on the energy consuming sub-modules, that is, when the voltage of a certain energy consuming sub-module is lower than a certain lower limit or higher than a certain upper limit, it needs to be forced out or put into operation to ensure energy consumption
  • the sub-module voltage is within normal fluctuations.
  • the number of energy-consuming sub-modules to be input changes greatly, it means that some energy-consuming sub-modules need to be forcibly input or withdrawn when the voltage of some energy-consuming sub-modules does not reach the voltage limit, thereby increasing the switching frequency of the sub-modules.
  • How to generate a suitable energy-consuming sub-module requires the investment number to play an important role in the control of distributed DC energy-consuming devices.
  • FIG. 2 is a schematic diagram of the structure of a distributed DC energy consumption device provided by an embodiment of the present application.
  • the distributed DC energy consumption device 200 includes a plurality of energy consumption sub-modules SM and a control module 210 (not shown) connected in series, and the functional composition block diagram of the control module 210 is shown in FIG. 4.
  • FIG. 3 is a schematic diagram of the structure of an energy consumption sub-module provided by an embodiment of the present application.
  • the energy consumption sub-module SM includes an energy consumption resistor R b , an energy storage capacitor C, and a controllable switch Q 1 .
  • the controllable switch Q 1 is connected in parallel with the diode D2.
  • the switching on and off of the energy-consuming sub-module SM can be controlled.
  • the energy-consuming resistor R b consumes energy, and the voltage of the energy-consuming sub-module drops.
  • the energy storage capacitor C is stored through the diode D2, and the voltage of the energy-consuming sub-module rises. Therefore, when the voltage is higher than the upper threshold, the energy-consuming sub-module is put in, and when the voltage is lower than the lower threshold, the energy-consuming sub-module is exited.
  • Fig. 4 is a functional block diagram of a control module of a distributed DC energy consumption device provided by an embodiment of the present application.
  • control module 210 includes a power calculation unit 211, a voltage calculation unit 212, a total amount calculation unit 213, and a control unit 214.
  • the power calculation unit 211 calculates the first number of energy consumption sub-modules to be input based on the power consumption of the distributed DC energy consumption device.
  • the voltage calculation unit 212 calculates the second number of energy-consuming sub-modules to be invested based on the DC bus voltage measurement value and the DC bus voltage control target value.
  • the total calculation unit 213 uses the sum of the first quantity and the second quantity as the total quantity of energy consumption sub-modules to be input.
  • the control unit 214 controls the input or withdrawal of the energy consumption submodule based on the total number of energy consumption submodules to be input.
  • FIG. 5 is a schematic flowchart of a method for controlling a distributed DC energy consuming device according to an embodiment of the present application.
  • the current and the DC voltage of the branch where the distributed DC energy consumption device is located are collected, and the power consumption of the distributed DC energy consumption device is equal to the product of the current and the DC voltage of the distributed DC energy consumption device.
  • the DC bus voltage to U d
  • the upper limit of the allowable DC bus voltage conversion range is U dmax
  • the lower limit is U dmin
  • the current DC transmission power is P d
  • the current measured by the energy consuming device is I c .
  • the total number of energy consuming device sub-modules is n. Then the average voltage of a single energy-consuming sub-module is When an energy-consuming sub-module is put into energy consumption, the resistance of the energy-consuming resistance of the energy-consuming sub-module is R, and the average power consumption of the energy-consuming sub-module
  • the DC bus voltage measurement value is subtracted from the DC bus voltage control target value to obtain the voltage difference.
  • the voltage difference is multiplied by the proportional coefficient k u to obtain the second number n 1u of energy consumption sub-modules to be input.
  • n 1u k u (U d -U r ), and n 1u is rounded to the nearest integer.
  • the DC bus voltage measurement value is greater than or equal to the DC bus voltage control target value, and more energy-consuming sub-modules need to be invested in energy consumption.
  • the DC bus voltage reaches the allowable upper limit of the DC bus voltage, all the energy-consuming sub-modules are used.
  • the DC bus voltage measurement value is less than or equal to the DC bus voltage control target value, and the energy consumption submodule needs to be exited to reduce energy consumption.
  • the DC bus voltage reaches the allowable lower limit of the DC bus voltage, all energy consumption submodules are withdrawn.
  • U d is the DC bus voltage measurement value
  • U r is the DC bus voltage control target value
  • k u is the proportional coefficient
  • n is the minimum total number of energy-consuming sub-modules
  • n 1p is the number of energy-consuming sub-modules that need to be invested.
  • U dmax is the allowable upper limit of DC bus voltage
  • U dmin is the allowable lower limit of DC bus voltage
  • n P dmax /P cm
  • P dmax is the maximum DC transmission power
  • P cm is the average power when a single energy-consuming sub-module is put into operation .
  • the proportional coefficient k u can also be calculated according to the following steps.
  • the numerator takes the preset value as the minimum total number n of energy-consuming sub-modules.
  • n P dmax /P cm
  • P dmax is the maximum DC transmission power
  • P cm is the average power when a single energy-consuming sub-module is put into operation.
  • U d is the DC bus voltage measurement value
  • U r is the DC bus voltage control target value
  • k u is the proportional coefficient
  • n is the minimum total number of energy-consuming sub-modules
  • U dmax is the allowable upper limit of the DC bus voltage
  • U dmin is the DC bus Allowable lower limit of voltage.
  • the preset value n here can also select other parameters according to actual conditions, and is not limited to this.
  • calculating the second number of energy consumption sub-modules to be invested may also be calculated by the PI proportional integral controller.
  • the measured value of the DC bus voltage is subtracted from the DC bus voltage control target value to obtain the voltage difference.
  • the voltage difference is adjusted by the proportional integral regulator to obtain the second number of energy consumption sub-modules that need to be invested.
  • the second number of energy-consuming sub-modules includes the number of effective sub-modules and the number of redundant sub-modules.
  • the effective number of sub-modules is the minimum number of sub-modules corresponding to the maximum power that can be consumed.
  • the maximum power is generally the maximum transmission power of the DC system.
  • the greater than sign means that a certain number of redundant sub-modules can be selected.
  • the number of redundancy is determined according to the margin requirement. The greater the margin, the greater the number of redundancy.
  • the sum of the first quantity and the second quantity of energy-consuming sub-modules to be input is used as the total number of energy-consuming sub-modules to be input.
  • the first number n 1p of energy consumption submodules to be inputted according to the power and the second number n 1u of energy consumption submodules to be inputted according to the voltage can be calculated.
  • n 1 n 1p +n 1u .
  • the voltages of the energy consumption sub-modules are sorted.
  • the un-input energy-consuming sub-modules are sequentially input in descending order of voltage.
  • the more-input energy-consuming sub-modules are withdrawn in order from small to large voltage.
  • the energy-consuming sub-modules are selected for control through a voltage equalization control algorithm.
  • the principle of voltage equalization sequencing is to give priority to the energy-consuming sub-modules with higher voltages and exit the energy-consuming sub-modules with lower voltages first.
  • a forced voltage equalization replacement is required.
  • the energy-consuming sub-module When the voltage of the energy-consuming sub-module is lower than the lower threshold or higher than the upper threshold, the energy-consuming sub-module is replaced. That is to say, exit the energy consumption sub-module and put in another energy consumption sub-module.
  • the power of the distributed DC energy consuming device is 0.
  • the second number of energy consuming sub-modules to be input is mainly calculated based on the voltage as the instantaneous control.
  • the power of the distributed DC energy consuming device is approximately equal to the power lost due to the fault, as long as the power consumption of the energy consuming device represented by the first number of energy consuming sub-modules that needs to be invested based on the power calculation can match this With the power lost, the voltage can be maintained in a stable range. Ensure that the number of energy-consuming sub-modules to be input is appropriately adjusted near the operating point to ensure that the rate of change of the number of energy-consuming sub-modules to be input is maintained at a small value, thereby effectively reducing the switching control frequency of the sub-modules.
  • the second number of energy-consuming sub-modules that need to be input based on voltage calculation only plays a fine-tuning role, and the first number of energy-consuming sub-modules that need to be input based on power calculation is mainly controlled. This not only guarantees the instantaneous control capability of the energy consuming device at the moment of failure, but also guarantees the range of adjustment of the number of sub-modules that need to be input during the steady state.
  • the number of energy-consuming sub-modules is divided into a first number based on power calculation and a second number based on voltage calculation.
  • the second number based on voltage calculation can guarantee The instantaneous control capability of the energy consuming device at the moment of failure.
  • the first quantity based on the power calculation can well reflect the abundant power that the energy consuming device needs to actually consume, ensuring that the energy consuming sub-module needs to be put into operation.
  • Proper adjustments around the power point can ensure that the change rate of the energy-consuming sub-modules to be input is maintained at a small value, thereby effectively reducing the switching control frequency of the energy-consuming sub-modules, which can not only ensure the instantaneous control capability of the energy-consuming device at the moment of failure, but also Reduce the rate of change in the number of energy-consuming sub-modules that need to be invested during the steady state of the fault.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

La présente invention concerne un dispositif de consommation d'énergie à courant continu distribué, un procédé de commande associé et un module de commande associé. Le procédé de commande comprend : le calcul, à partir de la puissance de consommation d'énergie du dispositif de consommation d'énergie à courant continu distribué, d'un premier nombre de sous-modules de consommation d'énergie dont l'entrée est requise ; le calcul, à partir d'une valeur de mesure de tension de barre omnibus à courant continu et d'une valeur cible de commande de tension de barre omnibus à courant continu, d'un second nombre de sous-modules de consommation d'énergie dont l'entrée est requise ; au moyen de la somme du premier nombre et du second nombre en tant que nombre total de sous-modules de consommation d'énergie dont l'entrée est requise ; et à partir du nombre total, la commande de l'entrée ou de la sortie du sous-module de consommation d'énergie.
PCT/CN2020/112456 2019-09-03 2020-08-31 Dispositif de consommation d'énergie à courant continu distribué, procédé de commande associé et module de commande associé Ceased WO2021043100A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910829495.1A CN112448406B (zh) 2019-09-03 2019-09-03 分布式直流耗能装置及其控制方法和控制模块
CN201910829495.1 2019-09-03

Publications (1)

Publication Number Publication Date
WO2021043100A1 true WO2021043100A1 (fr) 2021-03-11

Family

ID=74733999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/112456 Ceased WO2021043100A1 (fr) 2019-09-03 2020-08-31 Dispositif de consommation d'énergie à courant continu distribué, procédé de commande associé et module de commande associé

Country Status (2)

Country Link
CN (1) CN112448406B (fr)
WO (1) WO2021043100A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114400695B (zh) * 2021-12-21 2022-10-14 国家电网有限公司 一种柔性直流系统用交流耗能装置控制方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009016113A1 (fr) * 2007-07-27 2009-02-05 Abb Research Ltd Commande d'un réseau électrique
CN207782425U (zh) * 2018-01-31 2018-08-28 新疆金风科技股份有限公司 直流输电系统及其卸荷电路
CN109274269A (zh) * 2018-11-07 2019-01-25 王宇 一种直流斩波装置及控制方法
CN109861269A (zh) * 2019-03-29 2019-06-07 西安许继电力电子技术有限公司 一种分布式直流耗能装置的投切控制系统及方法
CN109873441A (zh) * 2019-03-29 2019-06-11 西安许继电力电子技术有限公司 一种具有分布式直流耗能装置的风电柔性直流送出系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109546672B (zh) * 2018-11-07 2022-05-13 詹长江 一种直流耗能装置、系统以及控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009016113A1 (fr) * 2007-07-27 2009-02-05 Abb Research Ltd Commande d'un réseau électrique
CN207782425U (zh) * 2018-01-31 2018-08-28 新疆金风科技股份有限公司 直流输电系统及其卸荷电路
CN109274269A (zh) * 2018-11-07 2019-01-25 王宇 一种直流斩波装置及控制方法
CN109861269A (zh) * 2019-03-29 2019-06-07 西安许继电力电子技术有限公司 一种分布式直流耗能装置的投切控制系统及方法
CN109873441A (zh) * 2019-03-29 2019-06-11 西安许继电力电子技术有限公司 一种具有分布式直流耗能装置的风电柔性直流送出系统

Also Published As

Publication number Publication date
CN112448406A (zh) 2021-03-05
CN112448406B (zh) 2022-08-26

Similar Documents

Publication Publication Date Title
WO2021088502A1 (fr) Système de commande de dispositif de consommation d'énergie à courant continu et procédé de commande associé
US9541062B2 (en) Method of operating a wind park
CN101682192B (zh) 影响调速发电机发电的方法和系统
RU2693530C1 (ru) Способ и устройство управления гибридной системой передачи постоянного тока
CN106849106B (zh) 直流配电网系统电压柔性控制方法
US8830712B2 (en) Controlling an inverter device of a high voltage DC system for supporting an AC system
CN103986339B (zh) 电源转换系统的、电压调变装置及其方法
CN112421662B (zh) 一种直流耗能装置的功率电压协调控制方法
KR101249884B1 (ko) 무정전전원장치 및 이를 이용한 병렬운전방법
CN105429163B (zh) 一种直流输电系统换流阀触发角控制方法和控制系统
CN109936159A (zh) 计及控制系统动态过程的直流送端暂态过电压计算方法
CN105281356A (zh) 一种多端柔性直流输电系统的协调控制方法
CN113241801B (zh) 一种基于电压稳定约束的新能源临界渗透率确定方法及装置
CN113178895A (zh) 海上风电交流故障穿越协同控制方法、装置及存储介质
CN103618308B (zh) 一种交流与柔性直流并联输电系统的交流线路潮流自动控制方法
CN109193735A (zh) 高压直流换流站多层级协调恢复控制方法及系统
JP2007249341A (ja) 水素製造システム
CN103560547A (zh) 一种交直流输电线路中交流系统故障的处理方法
CN105552893A (zh) 一种直流频率限制器控制方法
CN101273518B (zh) 具有多个变流器的直流传输调节方法
CN106130055A (zh) 高压直流输电系统的变功率控制系统及其方法
WO2021043100A1 (fr) Dispositif de consommation d'énergie à courant continu distribué, procédé de commande associé et module de commande associé
CN110854865B (zh) 一种用于换流站的动态无功补偿装置的控制方法
CN106972495A (zh) 一种低电压调节系统及其控制方法及装置
KR101342435B1 (ko) 고전압 ｄｃ시스템의 ｖｄｃｏｌ 유닛 및 그 제어방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20861082

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20861082

Country of ref document: EP

Kind code of ref document: A1