An Active Damping Method for the Bipolar DC System Connected with Constant Power Loads

被引：2

作者：

You, Xiaoyao ^{[1
]}

Liu, Heping ^{[1
]}

Liao, Jianquan ^{[1
]}

Huang, Yuansheng ^{[1
]}

机构：

[1] Chongqing Univ, Sch Elect Engn, Chongqing, Peoples R China

来源：

2020 IEEE ELECTRIC POWER AND ENERGY CONFERENCE (EPEC) | 2020年

关键词：

bipolar DC system; constant power loads (CPLs); stability; virtual resistance damping; Middlebrook's stability criterion; Lyapunov stability theory; half-bridge voltage balancer; STABILIZATION;

D O I：

10.1109/EPEC48502.2020.9320063

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：

The constant power loads (CPLs) in direct current (DC) power system have the potential to degrade the stability of the whole system. This paper proposed a virtual resistance damping method that improves the stability of the bipolar DC system connected with CPLs. At first, a stability criterion for the bipolar system is given. After that, a bipolar DC system based on a half-bridge voltage balancer (HBVB) is introduced and its small-signal model is derived. On this basis, a virtual resistance damping method, Inductor-Series-Damping-Resistance (ISDR), is proposed and analyzed. Moreover, the Lyapunov stability theory is adopted to investigate the impact of unbalanced load on the system stability. It turns out that system stability is determined by the sum of the system output power. This conclusion can significantly reduce the complexity of the bipolar system stability analysis and control loop design. Finally, the simulations and experiments are performed to verify the proposed idea in this paper.

引用

页数：6

共 18 条

[1] Stability Optimization Method Based on Virtual Resistor and Nonunity Voltage Feedback Loop for Cascaded DC-DC Converters [J].

Cai, Wen ;

Yi, Fan ;

Cosoroaba, Eva ;

Fahimi, Babak .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2015, 51 (06) :4575-4583

[2] DC Microgrids-Part I: A Review of Control Strategies and Stabilization Techniques [J].

Dragicevic, Tomislav ;

Lu, Xiaonan ;

Vasquez, Juan C. ;

Guerrero, Josep M. .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2016, 31 (07) :4876-4891

[3] Analysis and Control of Bipolar LVDC Grid With DC Symmetrical Component Method [J].

Gu, Yunjie ;

Li, Wuhua ;

He, Xiangning .

IEEE TRANSACTIONS ON POWER SYSTEMS, 2016, 31 (01) :685-694

[4]

Han B, 2016, ENERGIES, V9

[5] Stability improvement of microgrids in the presence of constant power loads [J].

Hossain, Eklas ;

Perez, Ron ;

Nasiri, Adel ;

Bayindir, Ramazan .

INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, 2018, 96 :442-456

[6] Stability Analysis and Active Stabilization of On-board DC Power Converter System with Input Filter [J].

Huangfu, Yigeng ;

Pang, Shengzhao ;

Nahid-Mobarakeh, Babak ;

Guo, Liang ;

Rathore, Akshay Kumar ;

Gao, Fei .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2018, 65 (01) :790-799

[7] Low-Voltage Bipolar-Type DC Microgrid for Super High Quality Distribution [J].

Kakigano, Hiroaki ;

Miura, Yushi ;

Ise, Toshifumi .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2010, 25 (12) :3066-3075

[8]

Kim S, 2018, PROCEEDINGS OF THE 8TH IEEE INTEGRATED STEM EDUCATION CONFERENCE (ISEC 2018), P1, DOI 10.1109/ISECon.2018.8340458

[9]

Li XY, 2017, ADV SOC SCI EDUC HUM, V123, P1

[10] Negative input-resistance compensator for a constant power load [J].

Liu, Xinyun ;

Forsyth, Andrew J. ;

Cross, Andrew M. .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2007, 54 (06) :3188-3196

← 1 2 →