Studies of a Novel DC Power Flow Controller and Its control Strategy

被引：0

作者：

Wu W. ^{[1
]}

Wu X. ^{[1
]}

Jing L. ^{[1
]}

Wei M. ^{[1
]}

Zhang Y. ^{[1
]}

机构：

[1] National Active Distribution Network Technology Research Center of Beijing Jiaotong University, Collaborative Innovation Center of Electric Vehicles in Beijing, Haidian District, Beijing

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 13期

基金：

国家重点研发计划;

关键词：

Control strategy; DC power flow controller; Multi-port; Multi-terminal DC transmission;

D O I：

10.13334/j.0258-8013.pcsee.181365

中图分类号：

学科分类号：

摘要：

DC power flow controller (DCPFC) is one of the key equipment of flexible DC transmission system. Realizing DCPFC multi-port output can effectively improve the power flow control range and capability of DCPFC. For the application limitations of the existing DCPFCs, a new multi-port DCPFC based on capacitance energy exchange between lines was proposed. Its topology is simple, and avoids the dependence on the voltage regulation at the DC outside of the main converter station in the transmission system, which enhances the reliability of the system. Besides, it uses the standard modular design, which is easy to achieve the port expansion and system redundancy. Firstly, the topology and working principles of the controller were analyzed by comparing the existing solutions. Then, a general control strategy including different control modes was designed based on pulse width modulation, and the relationships between system state variables under different control modes were analyzed in detail. Finally, the performance of the proposed DCPFC and control strategy were verified in a real time model in loop (MIL) simulation test system based on RT-lab. © 2019 Chin. Soc. for Elec. Eng.

引用

页码：3744 / 3756

页数：12

共 20 条

[1]

Wang Y., Zhao B., Yuan Z., Et al., Study of the application of VSC-based DC technology in energy internet, Proceedings of the CSEE, 35, 14, pp. 3551-3660, (2015)

[2]

Wu F., Ma Y., Mei L., Et al., Design of main connection scheme for Zhoushan flexible multi-terminal HVDC transmission project, Power System Technology, 38, 10, pp. 2651-2657, (2014)

[3]

Zhang Z., Xu B., Chen Q., Control strategies for UPFC-based optimal power flow of distribution network with normally closed-loop operation, Power System Technology, 36, 6, pp. 122-126, (2012)

[4]

Li G., Long C., Sun Y., Et al., Impact and location analysis of DC power flow controller on DC grid, Power System Technology, 39, 7, pp. 1786-1792, (2015)

[5]

Jovcic D., Hajian M., Zhang H., Et al., Power flow control in DC transmission grids using mechanical and semiconductor based DC/DC devices, Proceedings of the 10th IET International Conference on AC and DC Power Transmission, pp. 1-6, (2012)

[6]

Van Hertem D., Verboomen J., Purchala K., Et al., Usefulness of DC power flow for active power flow analysis with flow controlling devices, Proceedings of the 8th IEE International Conference on AC and DC Power Transmission, pp. 58-62, (2006)

[7]

Mu Q., Liang J., Li Y., Et al., Power flow control devices in DC grids, Proceedings of IEEE Power and Energy Society General Meeting, pp. 1-7, (2012)

[8]

Tao Y., Zhu X., Chen W., Et al., Comparisons of power flow controller topologies in DC power grids, Automation of Electric Power Systems, 40, 17, pp. 232-239, (2016)

[9]

Jia W., Wu J., Hao L., Et al., A novel DC power flow controller for multi-terminal flexible DC system, Power System Technology, 40, 4, pp. 1073-1080, (2016)

[10]

He R., Zhu J., Huo Q., Et al., Novel power flow controller for DC grid and its control method, Automation of Electric Power Systems, 41, 4, (2017)

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