聚合相同分布式电源对直流微电网高频振荡稳定性的影响

doi:10.11930/j.issn.1004-9649.202105196

中国电力 ›› 2021, Vol. 54 ›› Issue (8): 103-108.DOI: 10.11930/j.issn.1004-9649.202105196

聚合相同分布式电源对直流微电网高频振荡稳定性的影响

张天翼¹, 郑凯元¹, 王海风^1,2

1. 华北电力大学新能源电力系统国家重点实验室北京 102206;
2. 四川大学电气工程学院四川成都 610064

收稿日期:2021-06-10 修回日期:2021-06-13 发布日期:2021-08-05
作者简介:张天翼(1992-),男,博士研究生,从事新能源电力系统稳定分析与控制研究,E-mail:hardmoon7@hotmail.com;郑凯元(1994-),男,博士研究生,从事新能源电力系统稳定分析与控制研究,E-mail:zhengkaiyuan_ncepu@163.com;王海风(1961-),男,通信作者,教授,博士生导师,从事电力系统分析、稳定和控制研究,E-mail:hfwang60@qq.com
基金资助:
国家重点研发计划资助项目 (多换流站与交直流混联电网稳定控制理论与技术，2016YFB0900602)

Impact of Large Number of Same Aggregated Distributed Generators on the High-Frequency Oscillatory Stability of a DC Microgrids

ZHANG Tianyi¹, ZHENG Kaiyuan¹, WANG Haifeng^1,2

1. State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China;
2. College of Electrical Engineering, Sichuan University, Chengdu 610064, China

Received:2021-06-10 Revised:2021-06-13 Published:2021-08-05
Supported by:
This work is supported by National Key Research and Development Program(Theory and Technology of Multi-converter Station and AC/DC Hybrid Power Network Stability Control, No.2016YFB0900602)

摘要/Abstract

摘要： 构建直流微网有助于新能源的就近消纳，但是微网中电力电子设备的增加可能会导致高频振荡等现象，这要求规划时要对小干扰稳定性进行评估。评估过程中，微电源（distributed generators，DGs）接入的数量与系统状态矩阵的维数呈现近似正比关系，大量微电源接入给模态计算带来了挑战。需要提出一种降阶计算方法以满足直流微电网小干扰稳定性分析的要求。面向高频振荡的微电源聚合降阶模型可降低微电网模态分析过程中的数值计算工作量，有助于更好地在规划阶段对微电网进行评估。针对不同微电源接入数量、不同微电网拓扑结构问题进行仿真验证。仿真结果表明，该方法可以有效评估直流微网的高频振荡风险，降低计算工作的难度。

关键词: 多微源小信号稳定性, 降阶模态计算, 直流微网, 高频振荡

Abstract: The construction of DC micro-grid is conducive to the nearby absorption of renewable energy. Meanwhile, the increase of power electronic devices in the micro-grid may lead to the occurrence of high-frequency oscillations and other phenomena, which requires the evaluation of the stability of small disturbances during planning. In the evaluation process, the number of micro-power source is approximately proportional to the dimension of the system state matrix, so a large number of micro-power source connections bring challenges to modal calculation. It is necessary to propose a method of order reduction to meet the requirements of small disturbance stability analysis of DC microgrid. The aggregated reduced order model for high frequency oscillations can reduce the workload of numerical calculation in the process of modal analysis of microgrids, which is helpful for better evaluation of microgrids in the planning stage. In the last part, simulations are carried out to verify the method for different micropower access quantity and different microgrid topology. The simulation results show that the method proposed in this paper can effectively evaluate the high frequency oscillation risk of DC micro-grid and simplify the difficulty of calculation.

Key words: multi-microsource small signal stability, reduced-order modal computation, dc microgrid, high-frequency oscillatory

张天翼, 郑凯元, 王海风. 聚合相同分布式电源对直流微电网高频振荡稳定性的影响[J]. 中国电力, 2021, 54(8): 103-108.

ZHANG Tianyi, ZHENG Kaiyuan, WANG Haifeng. Impact of Large Number of Same Aggregated Distributed Generators on the High-Frequency Oscillatory Stability of a DC Microgrids[J]. Electric Power, 2021, 54(8): 103-108.

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参考文献

[1] 杨新法, 苏剑, 吕志鹏, 等. 微电网技术综述[J]. 中国电机工程学报, 2014, 34(1):57-70
YANG Xinfa, SU Jian, LÜ Zhipeng, et al. Overview on micro-grid technology[J]. Proceedings of the CSEE, 2014, 34(1):57-70
[2] YASSUDA YAMASHITA D, VECHIU I, GAUBERT J P. Two-level hierarchical model predictive control with an optimised cost function for energy management in building microgrids[J]. Applied Energy, 2021, 285:116420.
[3] DU W J, ZHENG K Y, WANG H F. Instability of a DC microgrid with constant power loads caused by modal proximity[J]. IET Generation, Transmission & Distribution, 2020, 14(5):774-785.
[4] DU W J, FU Q, WANG H F. Small-signal stability of a DC network planned for electric vehicle charging[J]. IEEE Transactions on Smart Grid, 2020, 11(5):3748-3762.
[5] 郑凯元, 杜文娟, 王海风. 聚合恒功率负荷对直流微电网稳定性影响的阻抗法分析[J]. 电网技术, 2021, 45(1):134-148
ZHENG Kaiyuan, DU Wenjuan, WANG Haifeng. DC microgrid StabilityAffected by aggregated constant power loads based on impedance method[J]. Power System Technology, 2021, 45(1):134-148
[6] 李鹏飞, 郭力, 王洪达, 等. 直流微电网高频振荡稳定问题的降阶建模及分析[J]. 电力自动化设备, 2021, 41(5):65-72
LI Pengfei, GUO Li, WANG Hongda, et al. Reduced-order modeling and analysis of high-frequency oscillation stability in DC microgrid[J]. Electric Power Automation Equipment, 2021, 41(5):65-72
[7] LIUTANAKUL P, AWAN A B, PIERFEDERICI S, et al. Linear stabilization of a DC bus supplying a constant power load:a general design approach[J]. IEEE Transactions on Power Electronics, 2010, 25(2):475-488.
[8] ALUISIO B, DICORATO M, FERRINI I, et al. Planning and reliability of DC microgrid configurations for Electric Vehicle Supply Infrastructure[J]. International Journal of Electrical Power & Energy Systems, 2021, 131:107104.
[9] 林刚, 李勇, 王姿雅, 等. 低压直流配电系统谐振机理分析与有源抑制方法[J]. 电网技术, 2017, 41(10):3358-3366
LIN Gang, LI Yong, WANG Ziya, et al. Resonance mechanism analysis and its active damping suppression of LVDC distribution system[J]. Power System Technology, 2017, 41(10):3358-3366
[10] WANG X F, BLAABJERG F, WU W M. Modeling and analysis of harmonic stability in an AC power-electronics-based power system[J]. IEEE Transactions on Power Electronics, 2014, 29(12):6421-6432.
[11] 王成山, 李微, 王议锋, 等. 直流微电网母线电压波动分类及抑制方法综述[J]. 中国电机工程学报, 2017, 37(1):84-98
WANG Chengshan, LI Wei, WANG Yifeng, et al. DC bus voltage fluctuation classification and restraint methods review for DC microgrid[J]. Proceedings of the CSEE, 2017, 37(1):84-98
[12] 李霞林, 郭力, 王成山. 微网主从控制模式下的稳定性分析[J]. 电工技术学报, 2014, 29(2):24-34
LI Xialin, GUO Li, WANG Chengshan. Stability analysis in a master-slave control based microgrid[J]. Transactions of China Electrotechnical Society, 2014, 29(2):24-34
[13] WANG K W, ZHANG X, CHUNG H S H. Solid-state single-port series damping device for power converters in DC microgrid systems[J]. IEEE Transactions on Power Electronics, 2019, 34(1):192-203.
[14] PISHBAHAR H, MORADI CHESHMEHBEIGI H, PIRI YENGIJEH N, et al. Inertia emulation with incorporating the concept of virtual compounded DC machine and bidirectional DC-DC converter for DC microgrid in islanded mode[J]. IET Renewable Power Generation, 2021, 15(8):1812-1825.
[15] BEZ F, BONANNO G, CORRADINI L, et al. Control technique for reliable operation of the synchronous series capacitor tapped inductor converter[J]. IEEE Transactions on Power Electronics, 2019, 34(8):8150-8161.
[16] 李峰, 秦文萍, 任春光, 等. 混合微电网交直流母线接口变换器虚拟同步电机控制策略[J]. 中国电机工程学报, 2019, 39(13):3776-3788
LI Feng, QIN Wenping, REN Chunguang, et al. Virtual synchronous motor control strategy for interfacing converter in hybrid AC/DC micro-grid[J]. Proceedings of the CSEE, 2019, 39(13):3776-3788
[17] ADERIBOLE A, ZEINELDIN H H, EL-MOURSI M S, et al. Domain of stability characterization for hybrid microgrids considering different power sharing conditions[J]. IEEE Transactions on Energy Conversion, 2018, 33(1):312-323.
[18] 贾鹏宇, 李艳, 郑琼林. 电压型级联系统中减小源变换器输出阻抗的有源阻尼控制方法[J]. 电工技术学报, 2015, 30(8):71-82
JIA Pengyu, LI Yan, ZHENG Trillionq. An active damping method to reduce output impedance of converters in voltage source cascaded system[J]. Transactions of China Electrotechnical Society, 2015, 30(8):71-82
[19] 高泽, 杨建华, 季宇, 等. 交直流混合微电网接口变换器双向下垂控制[J]. 南方电网技术, 2015, 9(5):82-87
GAO Ze, YANG Jianhua, JI Yu, et al. Bidirectional droop control of AC/DC hybrid microgrid interlinking converter[J]. Southern Power System Technology, 2015, 9(5):82-87
[20] 李霞林, 李志旺, 郭力, 等. 交直流微电网集群柔性控制及稳定性分析[J]. 中国电机工程学报, 2019, 39(20):5948-6175
LI Xialin, LI Zhiwang, GUO Li, et al. Flexible control and stability analysis of AC/DC microgrids clusters[J]. Proceedings of the CSEE, 2019, 39(20):5948-6175
[21] DU W J, DONG W K, WANG H F. et al. Dynamic aggregation of same wind turbine generators in parallel connection for studying oscillation stability of a wind farm[J]. IEEE Transactions on Power Systems, 2019, 34(6):4694-4705.
[22] WU W H, CHEN Y D, ZHOU L M, et al. Sequence impedance modeling and stability comparative analysis of voltage-controlled VSGs and current-controlled VSGs[J]. IEEE Transactions on Industrial Electronics, 2019, 66(8):6460-6472.
[23] DU W J, WANG Y J, WANG H F, et al. Small-disturbance stability limit of a grid-connected wind farm with PMSGs in the timescale of DC voltage dynamics[J]. IEEE Transactions on Power Systems, 2021, 36(3):2366-2379.

聚合相同分布式电源对直流微电网高频振荡稳定性的影响

Impact of Large Number of Same Aggregated Distributed Generators on the High-Frequency Oscillatory Stability of a DC Microgrids

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模态框（Modal）标题

聚合相同分布式电源对直流微电网高频振荡稳定性的影响

Impact of Large Number of Same Aggregated Distributed Generators on the High-Frequency Oscillatory Stability of a DC Microgrids

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