A Novel Virtual Resistor and Capacitor Droop Control for HESS in Medium-Voltage DC System

被引：51
作者：
Chen, Xia [1 ]
Zhou, Jianyu [2 ]
Shi, Mengxuan [3 ]
Yan, Linfang [3 ]
Zuo, Wenping [2 ]
Wen, Jinyu [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Wuhan 430074, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan 430074, Hubei, Peoples R China
[3] Huazhong Univ Sci & Technol, Elect Engn, Wuhan 430074, Hubei, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER SYSTEMS | 2019年 / 34卷 / 04期
关键词：
Shipboard; medium voltage dc system; hybrid energy storage system; droop control; STORAGE-SYSTEM; POWER LOADS; MANAGEMENT; IMPEDANCE;
D O I：
10.1109/TPWRS.2019.2894754
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 hybrid energy storage system (HESS) plays an essential role in the shipboard medium-voltage dc (MVdc) system to provide backup power, buffer large load change, as well as improve power quality. In this paper, a novel virtual resistor and capacitor droop (VRCD) control is first proposed for HESS including battery, supercapacitor, and flywheel. It enables the generator and multiple types of energy storages (ESs) with different characteristics to respond to multiple-frequency unbalanced power instead of simple high-frequency and low-frequency power sharing by the conventional droop control method. A detailed design procedure for the VRCD control is presented. Also, the secondary state of charge recovery control is proposed to maintain high energy reserve of ESs for further power demand. Simulations are conducted to demonstrate the effectiveness of the control scheme proposed in a shipboard MVdc under particular loads fluctuation, such as the propulsion motor and the pulsed load.
引用
收藏
页码：2518 / 2527
页数：10
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