A Virtual DC Motor Control Strategy Based on P-U Drooping Characteristics
Zhi Na1, Ding Ke1, Huang Qinghui2, Li Wuhua2, Zhang Hui1
1. School of Automation and Information Engineering Xi’an University of Technology College Xi’an 710048 China;; 2. School of Electrical Engineering Zhejiang University Hangzhou 310000 China
Abstract：The traditional P-U droop control in DC microgrid only has drooping characteristic and a lack of inertia, which is unable to suppress voltage fluctuation. The sudden fluctuation of the power in the network can cause voltage overshoot. In order to suppress the voltage fluctuations and improve the transient behaviors of the bus voltage, a virtual DC motor control strategy based on the P-U droop characteristics is proposed. By simulating the mechanical inertia characteristics of the DC motor to adjust the P-U droop control loop, the large inertia and high damping output characteristic of the DC motor can be realized in the DC VSC. The specific mechanism of the VDCM control is analyzed, and the effectiveness of the proposed method is verified by the comparative simulation and experiments with the traditional P-U droop control base on the micro-grid experiment platform.
支娜, 丁可, 黄庆辉, 李武华, 张辉. 基于P-U下垂特性的虚拟直流电机控制策略[J]. 电工技术学报, 2021, 36(6): 1238-1248.
Zhi Na, Ding Ke, Huang Qinghui, Li Wuhua, Zhang Hui. A Virtual DC Motor Control Strategy Based on P-U Drooping Characteristics. Transactions of China Electrotechnical Society, 2021, 36(6): 1238-1248.
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2021, Vol. 36 
