Communication-Independent Power Balance Control for Solid State Transformer Interfaced Multiple Power Conversion Systems

被引：24
|
作者：
Nie, Jintong [1 ]
Yuan, Liqiang [1 ]
Wen, Wusong [1 ]
Duan, Renzhi [1 ]
Shi, Bingqing [1 ]
Zhao, Zhengming [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2020年 / 35卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Battery energy storage system (BESS); coordinated control; droop control; microgrid; photovoltaic (PV); solid state transformer (SST); PARALLEL INVERTERS; PERFORMANCE; GENERATION; MODE; MANAGEMENT; STRATEGY; DESIGN;
D O I：
10.1109/TPEL.2019.2936109
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 coordinated power balance control strategy independent of communication is proposed in this article, which includes autonomous modes transition control methods for photovoltaic converter, battery energy storage system and their cooperation with solid state transformer. The synthesized multiple power conversion systems contain an internal dc point-of-common coupling (PCC) and an external ac PCC, which form a dc microgrid and an ac microgrid, respectively. In grid-connected mode, the system is able to operate in power regulation pattern corresponding to grid-side response, or secondary dc bus voltage regulation pattern corresponding to local loads response, and switch between them on demand. Grid-connected and islandedstandalone modes can be transferred seamlessly, without the need of control structure reconfiguration through communication links. Moreover, control-related real-time communication is no longer necessary in this scheme, thus improving the reliability and reducing the total costs accordingly. Experimental results are provided to validate the effectiveness of the proposed control scheme.
引用
收藏
页码：4256 / 4271
页数：16
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