Energy Storage Minimization Control in Grid-Connected Photovoltaic Virtual Synchronous Generator

被引：2
|
作者：
Hou, Yuguang [1 ]
Liu, Jia [1 ]
Li, Xuewen [1 ]
Liu, Jinjun [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Sch Elect Engn, Xian, Peoples R China
来源：
2022 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2022年
基金：
中国国家自然科学基金;
关键词：
photovoltaic (PV); energy storage; virtual synchronous generator (VSG); active power decoupling; FREQUENCY REGULATION; SYSTEM; INVERTERS; SUPPORT;
D O I：
10.1109/ECCE50734.2022.9947765
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A novel control strategy for minimizing the energy storage of a photovoltaic virtual synchronous generator (PV-VSG) is proposed in this paper. Firstly, a proportional-integral-resonant (PIR) dc-link voltage control is adopted for the supercapacitor (SC)-side dc-dc converter. With the proposed PIR control, the SC can provide frequency regulation support for the grid while taking over the potential double line-frequency power from the dc- link. Secondly, a virtual rotor kinetic energy feedforward control is proposed to directly deliver the grid-side disturbance to the SC. Thirdly, a PV power feedforward control is proposed to transfer the transient energy from the PV side to the grid side. With the above three approaches, the energy storage both in the dc-link and in the SC of a PV-VSG can be minimized. Its effectiveness is verified by PSCAD simulation.
引用
收藏
页数：6
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