A CONTROL STRATEGY FOR PARALLEL VOLTAGE SOURCE INVERTERS

被引:0
作者
Lazzarin, Telles B. [1 ]
Bauer, Guilherme A. T. [1 ]
Barbi, Ivo [1 ]
机构
[1] Univ Fed Santa Catarina, Power Elect Inst, INEP, Florianopolis, SC, Brazil
来源
2009 BRAZILIAN POWER ELECTRONICS CONFERENCE, VOLS 1 AND 2 | 2009年
关键词
Control strategy; parallelism; voltage source inverters; steady-state analysis; CONNECTED INVERTERS; OPERATION; LOAD;
D O I
暂无
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
This paper presents a simple, effective and robust control strategy applied to parallel connected single phase voltage source inverters. The proposed control has two instantaneous average values control loops: one for voltage and another for current. The first one controls the output voltage of the inverter while the second is designed to control the parallel operation of the inverters. The proposed parallelism control acts in the voltage before the LC filter and is based in the feedback of the L inductor current. There is no communication among inverters so that one unit is independent from the others. A prototype with 3 inverters of 5 kVA each was built to corroborate the control technique.
引用
收藏
页码:208 / 215
页数:8
相关论文
共 19 条
[2]   CONTROL OF PARALLEL CONNECTED INVERTERS IN STANDALONE AC SUPPLY-SYSTEMS [J].
CHANDORKAR, MC ;
DIVAN, DM ;
ADAPA, R .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1993, 29 (01) :136-143
[3]   COMBINATION VOLTAGE-CONTROLLED AND CURRENT-CONTROLLED PWM INVERTERS FOR UPS PARALLEL OPERATION [J].
CHEN, JF ;
CHU, CL .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 1995, 10 (05) :547-558
[4]  
CHEN YK, 2002, APPL POW EL C EXP 20, V2, P1018
[5]   Small-signal stability for parallel-connected inverters in stand-alone AC supply systems [J].
Coelho, EAA ;
Cortizo, PC ;
Garcia, PFD .
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2002, 38 (02) :533-542
[6]  
Engler A, 2005, 2005 International Conference on Future Power Systems (FPS), P142
[7]   An Improved Distributed Control Strategy for Parallel Inverters [J].
Fang, Tianzhi ;
Ruan, Xinbo ;
Xiao, Lan ;
Liu, Aizhong .
2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10, 2008, :3500-3505
[8]   Output impendance design of parallel-connected UPS inverters with wireless load-sharing control [J].
Guerrero, JM ;
de Vicuña, LG ;
Matas, J ;
Castilla, M ;
Miret, J .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2005, 52 (04) :1126-1135
[9]   A wireless controller to enhance dynamic performance of parallel inverters in distributed generation systems [J].
Guerrero, JM ;
de Vicuña, LG ;
Matas, J ;
Castilla, M ;
Miret, J .
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2004, 19 (05) :1205-1213
[10]   Decentralized control for parallel operation of distributed generation inverters using resistive output impedance [J].
Guerrero, Josep M. ;
Matas, Jose ;
Garcia de Vicuna, Luis ;
Castilla, Miguel ;
Miret, Jaume .
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2007, 54 (02) :994-1004