Large-Signal Stability Criterion for Parallel-Connected DC-DC Converters With Current Source Equivalence

被引：40

作者：

Peng, Dongdong ^{[1
]}

Huang, Meng ^{[1
]}

Li, Jinhua ^{[2
]}

Sun, Jianjun ^{[1
]}

Zha, Xiaoming ^{[1
]}

Wang, Chaoliang ^{[3
]}

机构：

[1] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Hubei, Peoples R China

[2] Wuhan Huafeng Elect Engn Co Ltd, Res Ctr, Wuhan 430223, Hubei, Peoples R China

[3] State Grid Zhejiang Elect Power Res Inst, Smart Grid Res Ctr, Hangzhou 310014, Zhejiang, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2019年 / 66卷 / 12期

基金：

国家重点研发计划;

关键词：

Stability criteria; Circuit stability; Power system stability; DC-DC power converters; Electric potential; DC-DC converter; large-signal stability; mixed potential theory; parallel-connected converters; POWER; SYSTEMS;

D O I：

10.1109/TCSII.2019.2895842

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：

The dc-dc converters are connected in parallel to feed the utility loads in many applications like the dc microgrid, the photovoltaic-battery hybrid power system, etc. Since the power sources usually connected to a dc bus through power electronics converters, the dynamics of the whole system is complex and the stability issues would be critical. In this brief, a large-signal modeling and stability analysis is performed to such system using the controlled current sources to represent the parallel-connected converters. The mixed potential theory-based stability criterion is then generated with the simplified model. The design-oriented analysis of the key system parameters is developed through the large-signal stability criterion and the power constrains. The analysis results are verified by the circuit simulations and the hardware-in-the-loop experiment of a dc-dc system with parallel-connected switching power converters.

引用

页码：2037 / 2041

页数：5

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