Passive control strategy of MMC under unbalanced grid voltage

被引：0
|
作者：
Cheng Q. [1 ]
Sun W. [1 ]
Cheng Y. [2 ]
Tan F. [1 ]
Li T. [1 ]
Chen L. [1 ]
机构：
[1] Shanghai Key Laboratory Power Station Automation Technology Laboratory, College of Automation Engineering, Shanghai University of Electric Power, Shanghai
[2] Shibei Power Supply Company, State Gird Shanghai Municipal Electric Power Company, Shanghai
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 04期
基金：
中国国家自然科学基金;
关键词：
HVDC; Modular multilevel converter; Passive control; PI control; Unbalanced grid voltage;
D O I：
10.16081/j.issn.1006-6047.2019.04.012
中图分类号：
学科分类号：
摘要：
The passive control method of MMC(Modular Multilevel Converter) under unbalanced grid voltage is proposed, which can solve the problems of three-phase current asymmetry on AC-side, secondary pulsation of active and reactive power in MMC under unbalanced grid voltage. According to the topological structure of MMC, the mathematical model under unbalanced grid voltage is established, and the internal characteristics under the unbalanced condition of grid voltage are analyzed. On this basis, the circulating current control strategy under unbalanced grid voltage is further designed. Then, based on the passive control theory of storage function, the corresponding nonlinear passive control strategy is proposed for the above three different control objectives. © 2019, Electric Power Automation Equipment Press. All right reserved.
引用
收藏
页码：78 / 85
页数：7
相关论文
共 18 条
  • [1] Debnath S., Qin J., Bahrani B., Et al., Operation, control, and applications of the modular multilevel converter: a review, IEEE Transactions on Power Electronics, 30, 1, pp. 37-53, (2015)
  • [2] Chang F., Wang Y., Wang Y., Et al., Faults feature ana-lysis and control protection strategies of modular multilevel converter based high voltage direct current, High Voltage Engineering, 41, 7, pp. 2428-2434, (2015)
  • [3] Sun X., Zhu J., Liu W., Et al., Fault-isolated sub-module topology of MMC-HVDC converter station, Electric Power Automation Equipment, 37, 3, pp. 120-125, (2017)
  • [4] Zhang F., Zhang G., Li C., Second-order linear active disturbance rejection control strategy of MMC-HVDC, Electric Power Automation Equipment, 37, 11, pp. 92-98, (2017)
  • [5] Yang S., Wang P., Tang Y., Et al., Circulating current suppression in modular multilevel converters with even-harmonic repetitive control, IEEE Transactions on Industry Applications, 54, 1, pp. 298-309, (2018)
  • [6] Ou Z., Wang G., Modular multilevel converter control strategy based on arm current control under unbalanced grid condition, IEEE Transactions on Power Electronics, 33, 5, pp. 3826-3836, (2018)
  • [7] Li J., Konstantinou G., Impact of circulating current control in capacitor voltage ripples of modular multilevel converters under grid Imbalances, IEEE Transactions on Power Delivery, 33, 3, pp. 1257-1267, (2018)
  • [8] Song P., Wu J., Zou H., Direct power compensation control strategy for modular multilevel converter under unba-lanced grid voltage conditions, High Voltage Engineering, 42, 7, pp. 2184-2192, (2016)
  • [9] Liang Y., Direct power control strategy based on reduced order vector resonant controller for MMC-HVDC under unbalanced grid voltages, Proceedings of the CSEE, 37, 24, pp. 7294-7303, (2017)
  • [10] Zhang J., Tian X., Yin X., Control strategy of MMC-HVDC, Electric Power Automation Equipment, 35, 11, pp. 103-108, (2015)
12