电力系统自动化2019，Vol.43Issue(5)：92-100,9.DOI:10.7500/AEPS20180720001
基于变步长功率跟踪的有功备用式PV-VSG控制策略
Control Strategy of PV-VSG in Active Power Reserve Mode Based on Power Tracking with Variable Step
摘要
Abstract
Most of the traditional photovoltaic power generation systems are connected to power grid by the maximum power tracking mode and do not have the frequency modulation capability by adjusting active power. However, the photovoltaic virtual synchronous generator (PV-VSG) that is modified by them are mostly equipped with energy storage to realize the virtual synchronization function, but the energy storage equipment is too expensive, and the main circuit transformation cost is large. To solve the problems above, a PV-VSG control strategy is proposed based on power tracking of variable step in active power reserve mode saves transformation cost by realizing virtual synchronization function through active power reserve mode without transforming the main circuit of traditional centralized photovoltaic inverter. The proposed method overcomes the incapable of compatibility and stability for the tracking method of fixed step, enables the PV-VSG to provide inertial and damping support control quickly and accurately. Simulation results verify the effectiveness of the proposed control strategy.关键词
光伏虚拟同步发电机/功率跟踪/变步长/有功备用/调频调压Key words
photovoltaic virtual synchronous generator (PV-VSG)/power tracking/variable step/active power reserve/frequency modulation and voltage regulation引用本文复制引用
张海峥,张兴,李明,张行,管玮琦,赵为..基于变步长功率跟踪的有功备用式PV-VSG控制策略[J].电力系统自动化,2019,43(5):92-100,9.基金项目
国家重点研发计划资助项目(2016YFB0900300) （2016YFB0900300）
国家自然科学基金资助项目(51677049) （51677049）
This work is supported by National Key R&D Program of China (No. 2016YFB0900300) and National Natural Science Foundation of China (No. 51677049). （No. 2016YFB0900300）
