Evaluation of Current Controller Performance and Stability for Voltage Source Converters Connected to a Weak Grid

被引:88
作者
Midtsund, T. [1 ]
Suul, J. A. [1 ]
Undeland, T. [1 ]
机构
[1] Norwegian Univ Sci & Technol, Dept Elect Power Engn, N-7034 Trondheim, Norway
来源
IEEE PEDG 2010: THE 2ND INTERNATIONAL SYMPOSIUM ON POWER ELECTRONICS FOR DISTRIBUTED GENERATION SYSTEMS | 2010年
关键词
Current Control; Stability; Voltage Source Converter; Weak grid;
D O I
10.1109/PEDG.2010.5545794
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
080201 [机械制造及其自动化];
摘要
This paper investigates the operation of a current controlled Voltage Source Converter (VSC) under weak grid conditions caused by large grid impedance. Three different current controller structures are investigated; the conventional decoupled PI-controller in the synchronously rotating reference frame, Proportional Resonant (PR) controllers in the stationary reference frame, and the phase current hysteresis controllers. The different control strategies are studied by simulation, and the results show how large grid impedances can influence the dynamic response of the system. It is further discussed how the interaction between the current controllers, the Phase Locked Loop (PLL) and the grid inductance can trigger instability when the voltage measurements are highly influenced by the operation of the converter. The results indicate that the tuning of the PLL and the way of utilizing the phase information is of large importance for the stability and dynamic response of the control system.
引用
收藏
页码:382 / 388
页数:7
相关论文
共 20 条
[1]
[Anonymous], 1999, P IEEE PESC 99
[2]
[Anonymous], 2003, P 10 EUR C POW EL AP
[3]
Bajarcharya C., 2008, P NORD WORKSH POW IN
[4]
Overview of control and grid synchronization for distributed power generation systems [J].
Blaabjerg, Frede ;
Teodorescu, Remus ;
Liserre, Marco ;
Timbus, Adrian V. .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2006, 53 (05) :1398-1409
[5]
A new mathematical model and control of a three-phase AC-DC voltage source converter [J].
Blasko, V ;
Kaura, V .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 1997, 12 (01) :116-123
[6]
CURRENT CONTROL OF VSI-PWM INVERTERS [J].
BROD, DM ;
NOVOTNY, DW .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1985, 21 (03) :562-570
[7]
A review of power electronics interfaces for distributed energy systems towards achieving low-cost modular design [J].
Chakraborty, Sudipta ;
Kramer, Bill ;
Kroposki, Benjamin .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2009, 13 (09) :2323-2335
[8]
Cobreces S., 2007, P 12 EUR C POW EL AP
[9]
Dannehl J., 2007, P 12 EUR C POW EL AP
[10]
Limitations of Voltage-Oriented PI Current Control of Grid-Connected PWM Rectifiers With LCL Filters [J].
Dannehl, Joerg ;
Wessels, Christian ;
Fuchs, Friedrich Wilhelm .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2009, 56 (02) :380-388