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WO2015135352A1 - Procédé de commande anti-panne à courant continu (cc) d'un convertisseur multi-niveau modulaire hybride - Google Patents

Procédé de commande anti-panne à courant continu (cc) d'un convertisseur multi-niveau modulaire hybride Download PDF

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Publication number
WO2015135352A1
WO2015135352A1 PCT/CN2014/093855 CN2014093855W WO2015135352A1 WO 2015135352 A1 WO2015135352 A1 WO 2015135352A1 CN 2014093855 W CN2014093855 W CN 2014093855W WO 2015135352 A1 WO2015135352 A1 WO 2015135352A1
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WIPO (PCT)
Prior art keywords
bridge
module
sub
full
arm
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/CN2014/093855
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English (en)
Chinese (zh)
Inventor
孔明
汤广福
杨杰
马巍巍
季兰兰
李泓志
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.)
State Grid Smart Grid Research Institute of SGCC
Dalian Power Supply Co State Grid Liaoning Electric Power Co Ltd
State Grid Corp of China SGCC
C Epri Electric Power Engineering Co Ltd
Original Assignee
State Grid Smart Grid Research Institute of SGCC
Dalian Power Supply Co State Grid Liaoning Electric Power Co Ltd
State Grid Corp of China SGCC
C Epri Electric Power Engineering Co Ltd
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Application filed by State Grid Smart Grid Research Institute of SGCC, Dalian Power Supply Co State Grid Liaoning Electric Power Co Ltd, State Grid Corp of China SGCC, C Epri Electric Power Engineering Co Ltd filed Critical State Grid Smart Grid Research Institute of SGCC
Publication of WO2015135352A1 publication Critical patent/WO2015135352A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0096—Means for increasing hold-up time, i.e. the duration of time that a converter's output will remain within regulated limits following a loss of input power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection

Definitions

  • the invention relates to the technical field of flexible direct current transmission of a power system, in particular to a DC fault ride through control method of a hybrid modular multilevel converter.
  • the Half Hybrid Modular Multilevel Converter uses a new multi-level topology that is popular in the world. Its core unit - Sub Module (SM) is divided into two types. One is a half-bridge sub-module (Half Bridge Sub-Module, HBSM, 3 in Figure 1) consisting of two turn-off power electronic switching devices with anti-parallel diodes and a capacitor; the other is Four shut-off power electronic switching devices with anti-parallel diodes and a full bridge sub-module (FBSM, 4 in Figure 1).
  • Half Bridge Sub-Module Half Bridge Sub-Module, HBSM, 3 in Figure 1
  • FBSM full bridge sub-module
  • HBSM Valve half-bridge sub-module segment
  • FBSM Valve full-bridge sub-module valve segment
  • the structural sub-module valve section, the full-bridge sub-module valve section and one bridge-arm reactor are connected in series to form a converter leg.
  • the upper and lower symmetrical commutating bridge arms form a phase unit (Phase Module or Phase Unite). 2) in Figure 1. Similar to the H-bridge cascading multi-level structure, it consists of three phase units including A, B, C (or a, b, c).
  • the submodule hybrid modular multilevel converter controls each bridge arm by controlling the turn-on and turn-off during the two switches in the half-bridge and the turn-on and turn-off during the four switches in the full bridge.
  • the input and cutoff of the module yield different bridge arm output voltages.
  • different AC output voltages are obtained by controlling the output voltage of the upper and lower arms.
  • the voltage of the sub-module of the three-phase input and the voltage drop of the bridge arm react together to form a DC voltage. It can be seen that the capacitance voltage balance of the inner half bridge and the full bridge structure submodule of the bridge arm is directly related to the AC and DC output voltage quality of the converter.
  • Zhao Chengyong, Liu Xinghua, et al., "Submodule Grouping and Voltage Equalization Control Method for Modular Multilevel Converters" (Application No.: 201210451946.0) proposes a control method for voltage balance of bridge arm grouping sub-modules.
  • the method realizes the relative balance of the sub-modules in the same bridge arm by grouping the equal number of each bridge arm sub-module and calculating the energy balance factor of each segment to determine the number of input sub-modules of each group.
  • the above control method is only applicable when the number of sub-modules in each segment is the same.
  • the number of sub-modules in the segment is reduced due to factors such as sub-module failure or when there is a large difference in the number of modules between segments.
  • the control scheme proposed in this paper will no longer be applicable and some improvement is needed.
  • the hybrid structure converter is a hybrid sub-module modular multi-level converter composed of a half bridge and a full bridge structure sub-module.
  • the difference from the inverter of the present invention is that the bridge arm reactor has a discharge path formed by a thyristor.
  • the control method of capacitor voltage balance of half-bridge and full-bridge sub-module during steady-state period is not given in detail.
  • the traversing method designed in this paper also needs to lock the converter. achieve.
  • the object of the present invention is to provide a DC fault ride through control method for a hybrid modular multilevel converter, which realizes a bridge of a hybrid modular multilevel converter during steady state.
  • the voltage balance control of the inner half bridge and the full bridge structure submodule ensures the effective control of the AC side current during the DC bipolar fault.
  • the proposed control method can ensure the continuous operation of the converter without causing the converter to be blocked due to the failure.
  • the invention provides a DC fault traversing control method for a hybrid modular multilevel converter.
  • the hybrid modular multilevel converter is composed of three phases, and each phase is composed of upper and lower bridge arms of the same structure in series. Connecting the AC end of the modular multilevel converter at the midpoint of the upper and lower arms;
  • Each of the upper and lower arms is composed of a reactor, a plurality of cascaded half-bridge submodules, and a plurality of cascaded full-bridge sub-modules; each of the bridges has a cascaded half-bridge structure Module and cascaded full bridge One end of the structural sub-module in series is connected to the AC end of the modular multi-level converter through a reactor; the other end is connected to one end of the cascaded sub-modules of the other two-phase bridge arms to form the modular multi-level switch Positive and negative bus bars of the DC terminal of the current device;
  • the improvement is that the method comprises the following steps:
  • the number of sub-modules input, the half-bridge sub-module and the full-bridge sub-module corresponding to the valve-based control device will finally determine the half-bridge sub-module and the full-bridge sub-module in the bridge arm Switching state and performing trigger control to ensure the relative balance of the capacitor voltages of the two sub-modules;
  • the capacitor voltage of the half-bridge structure sub-module and the full-bridge structure sub-module in the bridge arm is relatively stable; after the fault occurs, the converter can achieve effective current on the AC side. Control, to ensure that the converter will not be blocked due to transient short-circuit fault on the DC side.
  • the bridge arm current i jpn is determined; if i jpn >0, the average value of the capacitor voltage of the half-bridge structure sub-module in the bridge arm u smhpnj_avg and the average value of the capacitor voltage of the full-bridge structure sub-module in the same bridge.
  • the capacitor voltage balance control method of the hybrid sub-module modular multi-level converter in the steady state period of the invention ensures the relative balance of the capacitor voltages of the half-bridge structure sub-module and the full-bridge structure sub-module; Performance requirements for fault traversal, no need to lock the converter during a fault. Reduce the required switching devices, related drivers and other equipment to achieve a unified economic and equipment performance.
  • FIG. 1 is a flow chart of a DC fault ride through control method of a hybrid modular multilevel converter provided by the present invention
  • FIG. 2 is a schematic structural diagram of a submodule hybrid modular multilevel converter provided by the present invention.
  • FIG. 3 is a schematic diagram of calculation of the total number of input modules of the bridge arm provided by the present invention.
  • FIG. 4 is a schematic diagram of determining the correction amount ⁇ n pnj provided by the present invention.
  • FIG. 5 is a waveform diagram of a capacitor voltage average value of the A-phase upper and lower bridge half-bridge structure sub-modules provided by the present invention.
  • FIG. 6 is a waveform diagram of a capacitor voltage average value of a full-bridge structure sub-module of the A-phase upper and lower arms provided by the present invention
  • FIG. 7 is a current waveform diagram of a full-bridge structure sub-module of the A-phase upper and lower bridge arms provided by the present invention.
  • FIG. 8 is a waveform diagram of an AC side current before and after a DC bipolar short-circuit fault according to the present invention.
  • Figure 9 is a waveform diagram of a bipolar DC voltage provided by the present invention.
  • the present invention proposes a DC fault ride through control method for the hybrid modular multilevel converter.
  • the DC voltage value and its rate of change are monitored to determine if a DC bipolar short circuit fault has occurred.
  • the hybrid modular multilevel converter is composed of three phases, each phase is composed of upper and lower bridge arms of the same structure in series; the intermediate ends of the upper and lower bridge arms are connected to the AC end of the modular multilevel converter;
  • Each of the upper and lower arms is composed of a reactor, a plurality of cascaded half-bridge submodules, and a plurality of cascaded full-bridge sub-modules; each of the bridge-armed half-bridge sub-modules and One end of the cascaded full-bridge structure sub-module is connected to the AC end of the modular multi-level converter through a reactor; the other end is connected to one end of the cascaded sub-module of the other two-phase bridge arm to form the module The positive and negative bus bars of the DC terminal of the multilevel converter.
  • Schematic diagram of the sub-module hybrid modular multilevel converter is shown in Figure 2.
  • FIG. 1 A flow chart of a DC fault ride-through control method for a hybrid modular multilevel converter provided by the present invention is shown in FIG. 1 and includes the following steps:
  • N hpnj is the number of modules working normally in the j-phase upper arm or the lower-bridge middle half-bridge sub-module valve segment; N fpnj is the j-phase upper arm or the lower
  • the number of sub-modules input, the half-bridge sub-module and the full-bridge sub-module corresponding to the valve-based control device will finally determine the half-bridge sub-module and the full-bridge sub-module in the bridge arm Switching state and performing trigger control to ensure the relative balance of the capacitor voltages of the two sub-modules;
  • the capacitor voltage of the half-bridge structure sub-module and the full-bridge structure sub-module in the bridge arm is relatively stable; after the fault occurs, the converter can achieve effective current on the AC side.
  • Control the current waveform diagram of the A-phase upper and lower bridge arm full-bridge structure sub-module is shown in Figure 7), ensuring that the inverter will not be blocked due to the transient short-circuit fault on the DC side.
  • the average voltage waveforms of the capacitor voltages of the A-phase upper and lower arm half-bridge structure sub-modules and the full-bridge structure sub-modules are shown in Figures 5 and 6, respectively.
  • step (4) If there is no correction amount ⁇ n pnj obtained in step (4), the balance of the capacitor voltages of the inner bridge half bridge and the full bridge sub-module will not be effectively guaranteed, which will affect the control effect of the AC/DC side voltage of the converter, resulting in power. Oscillation and other phenomena. If there is a correction amount ⁇ n pnj as described in step (4), the half-bridge and full-bridge sub-module capacitor voltage errors will be controlled within a certain range (as shown in Figures 5 and 6).
  • step (6) if there is no switching of the modulation strategy described in step (6), the current on the AC side of the converter cannot be controlled, and the traversal control of the DC fault cannot be realized. If there is a switching of the modulation strategy described in the step (6), even under the condition that the DC voltage is 0, the effective control of the alternating current can be realized (as shown in FIG. 8).
  • the capacitor voltage balance control strategy of the hybrid multi-module modular multi-level converter in the steady state period of the invention ensures the relative balance of the capacitor voltages of the half bridge submodule and the full bridge submodule; and simultaneously satisfies the DC transient fault Performance requirements for traversal, no need to lock the converter during a fault. Reduce the required switching devices, related drivers and other equipment to achieve a unified economic and equipment performance.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention porte sur un procédé de commande anti-panne à courant continu (CC) d'un convertisseur multi-niveau modulaire hybride. Le procédé de commande configure de manière dynamique le nombre de sous-modules en demi-pont (HBSM) et de sous-modules en pont complet (FBSM) ajoutés à l'intérieur de la même branche par commande de l'ajout et du retrait de HBSM et FBSM (3, 4) dans la branche et suivi de la moyenne de capacité et de tension des HBSM et FBSM et surveillance de l'état de panne côté CC sur la base des HBSM et FBSM fonctionnant efficacement, réalisant ainsi l'équilibre de capacité et de tension des HBSM et FBSM dans l'état stable, et obtenant une commande efficace de courant et tension CA/CC pendant une panne CC à état transitoire. Le procédé assure un fonctionnement continu d'un convertisseur et évite l'arrêt du convertisseur en raison d'une panne.
PCT/CN2014/093855 2014-03-13 2014-12-15 Procédé de commande anti-panne à courant continu (cc) d'un convertisseur multi-niveau modulaire hybride Ceased WO2015135352A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410092678.7A CN104917415B (zh) 2014-03-13 2014-03-13 一种混合模块化多电平换流器的直流故障穿越控制方法
CN201410092678.7 2014-03-13

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CN113794393B (zh) * 2021-09-08 2023-09-29 山东理工大学 一种基于模组解耦控制的混合型mmc器件损耗优化方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281014A (zh) * 2011-08-29 2011-12-14 浙江大学 一种具有处理直流故障功能的多电平换流器
WO2013017160A1 (fr) * 2011-08-01 2013-02-07 Alstom Technology Ltd Ensemble convertisseur continu-continu
CN102931863A (zh) * 2012-11-12 2013-02-13 华北电力大学 一种建立模块化多电平换流器的混合结构模型的方法
CN103339814A (zh) * 2011-02-01 2013-10-02 西门子公司 用于消除高压直流输电线故障的方法及通过高压直流输电线和变流器传输电流的装置
CN103633871A (zh) * 2013-11-20 2014-03-12 华南理工大学 基于全桥与半桥模块的混合型多电平换流器及其控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103339814A (zh) * 2011-02-01 2013-10-02 西门子公司 用于消除高压直流输电线故障的方法及通过高压直流输电线和变流器传输电流的装置
WO2013017160A1 (fr) * 2011-08-01 2013-02-07 Alstom Technology Ltd Ensemble convertisseur continu-continu
CN102281014A (zh) * 2011-08-29 2011-12-14 浙江大学 一种具有处理直流故障功能的多电平换流器
CN102931863A (zh) * 2012-11-12 2013-02-13 华北电力大学 一种建立模块化多电平换流器的混合结构模型的方法
CN103633871A (zh) * 2013-11-20 2014-03-12 华南理工大学 基于全桥与半桥模块的混合型多电平换流器及其控制方法

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