Research of VSG based on ESO and terminal sliding mode control

被引：0

作者：

Li X. ^{[1
]}

Kang Z. ^{[1
]}

Chang Z. ^{[1
]}

Zhao Z. ^{[1
]}

机构：

[1] Department of Electrical Engineering, China University of Petroleum (East China), Qingdao

来源：

Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2019年 / 47卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Distributed power; ESO; Microgrid; Terminal sliding mode control; VSG control;

D O I：

10.19783/j.cnki.pspc.180781

中图分类号：

学科分类号：

摘要：

Microgrid is a unified whole which is composed of distributed power sources, energy storage device and load. Main source control ability of voltage and frequency is crucial to stability of microgrid when it is isolated network running. Due to inherent characteristics of power electronic devices, the stability of mircogrid isolated running is poor. In order to realize regulating function of frequency and voltage of the main control source in AC mircogrid and improve frequency stability of the AC microgrid operation, a mircogrid with solar and storage system as main power supply is built under DigSILENT. Then a VSG controller based on virtual synchronous generation control technology and nonlinear robust control technology is designed to inverter. The Expansion State Observer (ESO) and Terminal Sliding Mode Control (TMSC) are introduced into the power-frequency controller to improve the control performance. Through simulation analysis, VSG controller can effectively regulate the frequency and voltage of microgrid when load or photovaltaic power changes. By comparing with the general controller simulation, the VSG control based on ESO and TMSC can not only realize frequency and voltage regulation of microgrid, but also improve the transient frequency stability more significantly and increase the inertia of AC microgrid. © 2019, Power System Protection and Control Press. All right reserved.

引用

页码：65 / 72

页数：7

共 19 条

[1]

Lu Z., Sheng W., Zhong Q., Et al., Virtual synchronous generator and its application in microgrid, Proceedings of the CSEE, 34, 16, pp. 2591-2603, (2014)

[2]

Zhou Q., Wang N., He S., Et al., Summary and prospect of China's new energy development under the background of high abandoned new energy power, Power System Protection and Control, 45, 10, pp. 146-154, (2017)

[3]

Yang X., Su J., Lu Z., Et al., Summary of microgrid technology, Proceedings of the CSEE, 34, 1, pp. 57-70, (2014)

[4]

Lin Y., Zhang J., Meng J., Analysis and comparison of virtual synchronous generator control strategy for distributed generation, Journal of North China Electric Power University (Natural Science Edition), 44, 1, pp. 16-23, (2017)

[5]

Shi R., Zhang X., Liu F., Et al., Virtual synchronous generator control in autonomous photovoltaic- battery-diesel micro grids, Electrical & Energy Management Technology, 3, pp. 26-33, (2017)

[6]

Meng J., Wang Y., Shi X., Et al., Control strategy and parameter analysis of distributed inverters based on VSG, Transactions of China Electrotechnical Society, 29, 12, pp. 1-10, (2014)

[7]

Zeng Z., Shao W., Ran L., Et al., Mathematical model and strategic energy storage selection of virtual synchronous generators, Automation of Electric Power Systems, 39, 13, pp. 22-31, (2015)

[8]

Cheng C., Yang H., Zeng Z., Et al., Rotor inertia adaptive control method of VSG, Automation of Electric Power Systems, 39, 19, pp. 82-89, (2015)

[9]

Li D., Zhu Q., Cheng Y., Et al., Control strategy of virtual synchronous generator based on self-adaptive rotor inertia and damping combination control algorithm, Automation of Electric Power Systems, 37, 11, pp. 72-77, (2017)

[10]

Liu H., Li S., Speed control for PMSM servo system using predictive functional control and extended state observer, IEEE Transactions on Industrial Electronics, 59, 2, pp. 1171-1183, (2012)

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