Control Strategy for MMC Based on Super-Capacitor Energy Storage

doi:10.11930/j.issn.1004-9649.202006159

Abstract

Abstract: In order to resolve the problems of the rapid variation of power system’s active power caused by grid-integrated renewable energy and pulsed loads, which will threaten the stability of adjacent generator units and power systems, a distributed energy storage system is proposed based on the modular multilevel converter (MMC) integrated with super-capacitor energy storage. The bi-directional DC/DC converters are used to control the charge and discharge process of the energy storage system, and the design principles for relevant parameters are provided. The control strategy based on dual-closed-loop PI regulator and the phase shifted PWM technology is used to control the balance of super-capacitor energy and the capacitor voltage stability of the MMC sub-modules. The energy management mechanism is introduced to control the collaborative operation of the MMC and the DC/DC converters, subsequently realizing the real-time compensation for pulsed active power variation in medium- and high-voltage systems. The simulation results with Matlab/Simulink platform have verified the effectiveness of the proposed device and control strategy.

Key words: super-capacitor energy storage, MMC, bidirectional DC/DC converter, active impact, real-time compensation

LI Lei, Jun TAO, ZHU Mingxing, FAN Yuan. Control Strategy for MMC Based on Super-Capacitor Energy Storage[J]. Electric Power, 2020, 53(11): 15-22.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202006159

https://www.electricpower.com.cn/EN/Y2020/V53/I11/15

References

[1] 丁明, 王伟胜, 王秀丽, 等. 大规模光伏发电对电力系统影响综述[J]. 中国电机工程学报, 2014, 34(1): 1-14
DING Ming, WANG Weisheng, WANG Xiuli, et al. A review on the effect of large-scale PV generation on power systems[J]. Proceedings of the CSEE, 2014, 34(1): 1-14
[2] 马进, 赵大伟, 钱敏慧, 等. 大规模新能源接入弱同步支撑直流送端电网的运行控制技术综述[J]. 电网技术, 2017, 41(10): 3112-3120
MA Jin, ZHAO Dawei, QIAN Minhui, et al. Reviews of control technologies of large-scale renewable energy connected to weakly-synchronized sending-end DC power grid[J]. Power System Technology, 2017, 41(10): 3112-3120
[3] 孙华东, 汤涌, 马世英. 电力系统稳定的定义与分类述评[J]. 电网技术, 2006, 30(17): 31-35
SUN Huadong, TANG Yong, MA Shiying. A commentary on definition and classification of power system stability[J]. Power System Technology, 2006, 30(17): 31-35
[4] 陈兴华, 李峰, 陈睿, 等. 计及安全稳定二、三道防线的电网运行风险评估[J]. 电力系统保护与控制, 2020, 48(4): 159-166
CHEN Xinghua, LI Feng, CHEN Rui, et al. Risk assessment of power grid operation considering second and third defense line of security and stability[J]. Power System Protection and Control, 2020, 48(4): 159-166
[5] 林海雪. 电弧炉的有功功率冲击对发电机组的影响[J]. 中国电机工程学报, 2014, 34(增刊1): 232-238
LIN Haixue. Influence of active power impact caused by EAF on the generating sets[J]. Proceedings of the CSEE, 2014, 34(S1): 232-238
[6] 黄晓斌, 张熊, 韦统振, 等. 超级电容器的发展及应用现状[J]. 电工电能新技术, 2017, 36(11): 63-70
HUANG Xiaobin, ZHANG Xiong, WEI Tongzhen, et al. Development and applications status of supercapacitors[J]. Advanced Technology of Electrical Engineering and Energy, 2017, 36(11): 63-70
[7] FRANQUELO L G, RODRIGUEZ J, LEON J I, et al. The age of multilevel converters arrives[J]. IEEE Industrial Electronics Magazine, 2008, 2(2): 28-39.
[8] 杨晓峰, 林智钦, 郑琼林, 等. 模块组合多电平变换器的研究综述[J]. 中国电机工程学报, 2013, 33(6): 1-14
YANG Xiaofeng, LIN Zhiqin, ZHENG Trillion Q., et al. A review of modular multilevel converters[J]. Proceedings of the CSEE, 2013, 33(6): 1-14
[9] SOONG T, LEHN P W. Evaluation of emerging modular multilevel converters for BESS applications[J]. IEEE Transactions on Power Delivery, 2014, 29(5): 2086-2094.
[10] VASILADIOTIS M, RUFER A. Analysis and control of modular multilevel converters with integrated battery energy storage[J]. IEEE Transactions on Power Electronics, 2015, 30(1): 163-175.
[11] 吉宇, 王生强, 曹炀, 等. 分散式储能MMC综合控制策略研究[J]. 中国电力, 2017, 50(10): 159-165
JI Yu, WANG Shengqiang, CAO Yang, et al. Research on comprehensive control strategy of distributed energy storage MMC[J]. Electric Power, 2017, 50(10): 159-165
[12] 韩啸, 陈强, 李睿. 储能型模块化多电平换流器的分析与控制方法[J]. 电力电子技术, 2020, 54(2): 99-101, 112
HAN Xiao, CHEN Qiang, LI Rui. Analysis and control method of modular multilevel converter integrated with energy storage[J]. Power Electronics, 2020, 54(2): 99-101, 112
[13] 张国驹, 唐西胜, 齐智平. 超级电容器与蓄电池混合储能系统在微网中的应用[J]. 电力系统自动化, 2010, 34(12): 85-89
ZHANG Guoju, TANG Xisheng, QI Zhiping. Application of hybrid energy storage system of super-capacitors and batteries in a microgrid[J]. Automation of Electric Power Systems, 2010, 34(12): 85-89
[14] 杨丰萍, 郑文奇, 金林, 等. 基于MMC的车载超级电容储能系统综合控制策略[J]. 储能科学与技术, 2019, 8(6): 1151-1158
YANG Fengping, ZHENG Wenqi, JIN Lin, et al. Integrated control strategy of vehicle supercapacitor energy storage system based on MMC[J]. Energy Storage Science and Technology, 2019, 8(6): 1151-1158
[15] 杨晓峰, 陶海波, 游小杰, 等. 应用于矿井提升机系统的超级电容储能型MMC[J]. 电源学报, 2020, 18(1): 96-103
YANG Xiaofeng, TAO Haibo, YOU Xiaojie, et al. Super capacitor energy storage based MMC applied to mine hoist system[J]. Journal of Power Supply, 2020, 18(1): 96-103
[16] 于芃, 周玮, 孙辉, 等. 用于风电功率平抑的混合储能系统及其控制系统设计[J]. 中国电机工程学报, 2011, 31(17): 127-133
YU Peng, ZHOU Wei, SUN Hui, et al. Hybrid energy storage system and control system design for wind power balancing[J]. Proceedings of the CSEE, 2011, 31(17): 127-133
[17] 张国驹, 唐西胜, 周龙, 等. 基于互补PWM控制的Buck/Boost双向变换器在超级电容器储能中的应用[J]. 中国电机工程学报, 2011, 31(6): 15-21
ZHANG Guoju, TANG Xisheng, ZHOU Long, et al. Research on complementary PWM controlled buck/boost Bi-directional converter in supercapacitor energy storage[J]. Proceedings of the CSEE, 2011, 31(6): 15-21
[18] MONTESINOS-MIRACLE D, MASSOT-CAMPOS M, BERGAS-JANE J, et al. Design and control of a modular multilevel DC/DC converter for regenerative applications[J]. IEEE Transactions on Power Electronics, 2013, 28(8): 3970-3979.
[19] 徐政, 肖晃庆, 张哲任. 模块化多电平换流器主回路参数设计[J]. 高电压技术, 2015, 41(8): 2514-2527
XU Zheng, XIAO Huangqing, ZHANG Zheren. Design of main circuit parameters of modular multilevel converters[J]. High Voltage Engineering, 2015, 41(8): 2514-2527
[20] 赵昕, 赵成勇, 李广凯, 等. 采用载波移相技术的模块化多电平换流器电容电压平衡控制[J]. 中国电机工程学报, 2011, 31(21): 48-55
ZHAO Xin, ZHAO Chengyong, LI Guangkai, et al. Submodule capacitance voltage balancing of modular multilevel converter based on carrier phase shifted SPWM technique[J]. Proceedings of the CSEE, 2011, 31(21): 48-55