Research on Quasi-Proportional Resonant Control of Modular Multilevel Matrix Converter

NAVIGATE

Table of Contents

STATISTICS

Viewed2267

Downloads973

Research on Quasi-Proportional Resonant Control of Modular Multilevel Matrix Converter

[HTML] PDF下载 (973)

[1]Wang Mingdong,Zhou Wei,Li Xiaolei,et al.Research on Quasi-Proportional Resonant Control of Modular Multilevel Matrix Converter[J].Journal of Zhengzhou University (Engineering Science),2021,42(05):86-91.[doi:10.13705/j.issn.1671-6833.2021.05.007]

Copy

Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 42卷 Number of periods: 2021 05 Page number: 86-91 Column: Public date: 2021-09-10

Title:: Research on Quasi-Proportional Resonant Control of Modular Multilevel Matrix Converter

Author(s):: Wang Mingdong; Zhou Wei; Li Xiaolei; Li Zhongwen; Wang Zixi;; School of Electrical Engineering, Zhengzhou University; State Grid Henan Electric Power Company; School of Electric Power University, North China University of Hydropower and Hydropower;

Keywords:: fractional frequency transmission; MMMC; arm current control; capacitor voltage balance; QPR controller

CLC:: -

DOI:: 10.13705/j.issn.1671-6833.2021.05.007

Abstract:: As a new AC/AC conversion device, modular multilevel matrix converter (MMMC) has advantages in low frequency and large capacity applications such as fractional frequency transmission system, whereas its bridge arm current control is complicated. In this paper, the topological structure of MMMC is analyzed and the mathematical model is established to study the structure of bridge arm current. In order to solve the problem of poor control precision of bridge arm current by traditional direct control method, quasi-proportional re-sonant (QPR) control strategy is introduced, and a quasi-proportional resonant controller based on input and output frequencies is designed according to the characteristics of fractional frequency transmission system. According to the control requirements of the system active and reactive power, the outer loop control strategy of constant active power control and constant reactive power control is given. At the same time, the relationship between the capacitive voltage of the sub-module and active power is deduced, and the voltage balance strategy of the submodule based on active power of the system is proposed by applying double Clarke transform. Finally, the MMMC-FFTS system simulation model is built on the simulation platform, the steady-state and transient response of the system are simulated respectively, and the simulation results of direct control and QPR control methods are compared. The simulation results show that the improved control method has good steady-state and transient performance, and the accuracy of reference tracking is higher, which verifies the feasibility and superiority of the proposed method.

References:: [1] 王锡凡,王秀丽.分频输电系统的可行性研究[J].电力系统自动化,1995,19(4):5-13.
[2] 张清枝,李志辉.具备直流故障隔离能力的新型MMC拓扑研究[J].郑州大学学报(工学版),2017,38(6):74-78.
[3] LIU S Q,WANG X F,WANG B Y,et al.Comparison between back-to-back MMC and M3C as high power AC/AC converters[C]//2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC).Piscataway:IEEE,2016:671-676.
[4] 李峰,王广柱,刘汝峰.模块化多电平矩阵变换器低频控制方法[J].电力系统自动化,2016,40(2):127-133.
[5] FAN B R,WANG K,ZHENG Z D,et al.Optimized branch current control of modular multilevel matrix converters under branch fault conditions[J].IEEE transactions on power electronics,2018,33(6):4578-4583.
[6] XU Q M,MA F J,LUO A,et al.Analysis and control of M3C-based UPQC for power quality improvement in medium/high-voltage power grid[J].IEEE transactions on power electronics,2016,31(12):8182-8194.
[7] 程振兴,王广柱,银泽一.基于MMMC插电式混合电动汽车变换系统及充电控制策略[J].电力系统自动化,2019,43(21):148-154.
[8] 欧朱建.模块化多电平矩阵变换器用于输电系统的关键技术研究[D].济南:山东大学,2018.
[9] 李峰.模块化多电平矩阵变换器关键技术研究[D].济南:山东大学,2016.
[10] 商秀娟.模块化多电平矩阵变换器控制策略研究[D].济南:山东大学,2016.
[11] 王文杰,杨益平,杭丽君,等.应用于交-交变换的M3C矩阵变换器系统控制策略[J].电力系统自动化,2020,44(12):186-192.
[12] 孟永庆,王健,李磊,等.基于双dq坐标变换的M3C变换器的数学模型及控制策略研究[J].中国电机工程学报,2016,36(17):4702-4712.
[13] SHARMA R,WU Q W,CHA S T,et al.Fault ride-through capability enhancement of VSC-HVDC-connected offshore wind power plants[J].电力系统自动化,2015,39(3):14-22.
[14] LI H F,LIU C R,LI G Y,et al.An enhanced DC voltage droop-control for the VSC:HVDC grid[J].IEEE transactions on power systems,2017,32(2):1520-1527.
[15] ZENG R,XU L,YAO L Z,et al.Analysis and control of modular multilevel converters under asymmetric arm impedance conditions[J].IEEE transactions on industrial electronics,2016,63(1):71-81.
[16] 李遥,许烈,李永东.单级模块化多电平矩阵变换器支路间电容电压平衡[J].清华大学学报(自然科学版),2017,57(11):1220-1227.

Similar References:

Memo

Last Update: 2021-10-11