姚玉永, 张立臣, 穆勇, 何绪伟, 李振成, 徐怀铎. 基于自适应虚拟电机策略的微电网储能控制研究[J]. 供用电, 2022, 39(7): 84-92. DOI: 10.19421/j.cnki.1006-6357.2022.07.013
引用本文: 姚玉永, 张立臣, 穆勇, 何绪伟, 李振成, 徐怀铎. 基于自适应虚拟电机策略的微电网储能控制研究[J]. 供用电, 2022, 39(7): 84-92. DOI: 10.19421/j.cnki.1006-6357.2022.07.013
YAO Yuyong, ZHANG Lichen, MU Yong, HE Xuwei, LI Zhencheng, XU Huaiduo. Research on energy storage control in microgrid based on adaptive virtual machine strategy[J]. Distribution & Utilization, 2022, 39(7): 84-92. DOI: 10.19421/j.cnki.1006-6357.2022.07.013
Citation: YAO Yuyong, ZHANG Lichen, MU Yong, HE Xuwei, LI Zhencheng, XU Huaiduo. Research on energy storage control in microgrid based on adaptive virtual machine strategy[J]. Distribution & Utilization, 2022, 39(7): 84-92. DOI: 10.19421/j.cnki.1006-6357.2022.07.013

基于自适应虚拟电机策略的微电网储能控制研究

Research on energy storage control in microgrid based on adaptive virtual machine strategy

  • 摘要: 为提升传统新能源和储能接入电力电子变换装置的惯性以及暂态性能,提出分层协调的自适应虚拟电机控制策略,通过分析功角曲线和角频率振荡曲线,设计了以功率偏差为基础的虚拟同步电机(virtual synchronous machine, VSM)自适应参数环节,以母线电压偏差为基础的虚拟直流电机(virtual direct current machine, VDCM)自适应环节,对储能本体和变换器惯性本质进行分析,获取惯量取值范围。仿真验证结果表明,与固定参数的传统微电网储能控制策略相比,在该控制策略下,频率跌落幅值降低了0.025 Hz,母线电压的幅值跌落减少了1.2 V,动态响应时间缩短了0.2 s,既增强了稳定性又降低了波动幅值,缩短了动态响应时间,对频繁的负荷波动具有更强的适应性。

     

    Abstract: In order to improve the inertia and transient performance of power electronic conversion devices connected to traditional new energy and energy storage, and realize stronger adaptability of control strategy,a hierarchical coordination adaptive virtual machine control strategy is proposed. The power angle curve and angular frequency oscillation curve are analyzed on the AC side,and the adaptive parameters of the the virtually synchronous machine(VSM) are designed based on the power deviation. The adaptive link of virtual DC machine(VDCM) is designed based on the bus voltage deviation. The inertia essence of energy storage body and converter is analyzed to limit the inertia amplitude. The control effect is verified by simulation. Compared with the traditional micro grid energy storage control strategy, the amplitude of frequency drop is reduced by 0.025 Hz, the amplitude drop of bus voltage is reduced by 1.2 V, and the dynamic response time is shortened by 0.2 s, it further reduces the fluctuation amplitude,shortens the time to reach stability, and has stronger adaptability to frequent load fluctuations.

     

/

返回文章
返回