Virtual SVPWM-Based Flexible Power Control for Dual-DC-Port DC-AC Converters in PV-Battery Hybrid Systems

被引：35
|
作者：
Wang, Jiangfeng [1 ]
Sun, Kai [1 ]
Zhou, Dehong [2 ,3 ]
Li, Yunwei [4 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 611731, Peoples R China
[3] Univ Elect Sci & Technol China, Shenzhen Inst Adv Study, Chengdu 611731, Peoples R China
[4] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 1H9, Canada
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2021年 / 36卷 / 10期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Batteries; DC-AC power converters; Voltage control; Topology; Power control; Modulation; Capacitors; Battery energy storage; dc-ac converter; photovoltaic (PV); space vector pulsewidth modulation (SVPWM) strategy; SOLAR PV; VOLTAGE; INVERTER; INTEGRATION; DESIGN; LINK; MANAGEMENT; STORAGE; PWM;
D O I：
10.1109/TPEL.2021.3074059
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A dual-dc-port dc-ac converter with virtual space vector pulsewidth modulation (SVPWM) based flexible power control is proposed for photovoltaic (PV)-battery hybrid systems. Two dc ports, in which one dc port is interfaced with PV and the other dc port is interfaced with the battery, are provided simultaneously by the dual-dc-port dc-ac converter. Hence, all the active power is transferred within single power conversion stage, and the dc-dc converter between PV and battery is removed. To realize flexible power control between PV, battery, and ac grid, a new control scheme consisting of an outer power loop and an inner virtual SVPWM is proposed, with fully considering the voltage variation of both PV and battery. Operation principle and power control capability of the dual-dc-port dc-ac converter are analyzed in detail. The effectiveness of the proposed solution is validated by experimental results.
引用
收藏
页码：11431 / 11443
页数：13
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