Cooperative Control Strategy of Energy Router and Energy Storage System in Microgrid

Proceedings of the 2nd International Conference on Information Technologies and Electrical Engineering Pub Date : 2019-12-06 DOI:10.1145/3386415.3387029

Zheng Lan, Junzhang Wang, Jinhui Zeng

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引用次数: 2

Abstract

A coordinated control strategy between the energy router and the energy storage system is proposed in this paper. To maintain the stability of voltage and frequency in microgrid, the interface converter of energy storage system(ESS) uses the constant voltage and constant frequency(V/F) control. The low voltage AC interface of the energy router (ER) connected to the microgrid adopts the virtual synchronous generator control, which adjusts the mechanical reference power in real-time according to the state of energy storage and charging. The ESS responds to power fluctuation And the ER maintains the stability of the ESS through bidirectional power regulation. ER and ESS ensure the "flexible" exchange of power between microgrid and grid. By this control strategy, the maximum efficiency of intermittent distributed energy can be guaranteed, and the stability, reliability and grid-connection friendliness of the microgrid operation can be improved. Simulation results show that the proposed control strategy is feasible and effective.

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微电网能量路由器与储能系统协同控制策略

提出了一种能量路由器与储能系统之间的协调控制策略。为了保持微电网电压和频率的稳定，储能系统(ESS)的接口变换器采用恒压恒频控制。接入微电网的能量路由器(ER)低压交流接口采用虚拟同步发电机控制，根据储能和充电状态实时调整机械参考功率。ESS响应功率波动，ER通过双向功率调节维持ESS的稳定。ER和ESS确保了微网和电网之间的“灵活”电力交换。通过该控制策略，可以保证间歇性分布式能源的效率最大化，提高微网运行的稳定性、可靠性和并网友好性。仿真结果表明所提出的控制策略是可行和有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 2nd International Conference on Information Technologies and Electrical Engineering

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