Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于LC滤波器的单相SPWM逆变器双环控制设计

来源:电工电气发布时间:2017-04-21 14:21 浏览次数:4
基于LC滤波器的单相SPWM逆变器双环控制设计
 
王博超
(东南大学 电气工程学院,江苏 南京 210096)
 
    摘 要:对基于LC 滤波器的单相SPWM 逆变器的双环控制进行了分析,得到了LC 滤波器在逆变器使用单极性倍频的调制方式下的参数设定,以此为基础对单相逆变器的双环控制方式进行了建模及电压环、电流环的参数确定。利用MATLAB/Simulink 软件对该逆变器模型进行了线性负载的突加突减仿真与带非线性负载时开、闭环的谐波畸变率的对比仿真。仿真结果表明,该种控制策略下逆变器具有较好的动态响应性能及较低的谐波畸变率。
    关键词:SPWM 逆变器;LC 滤波器;双环控制
    中图分类号:TM464     文献标识码:A     文章编号:1007-3175(2017)04-0021-05
 
Design of Double Loop Control in Single-Phase Sinusoidal Pulse Width
Modulation Inverter Based on LC Filter
 
WANG Bo-chao
(School of Electrical Engineering, Southeast University, Nanjing 210096, China)
 
    Abstract: This paper analyzed the double loop control of sigle-phase sinusoidal pulse width modulation (SPWM) inverter based on the LC filter and obtained the parameters setting of the LC filter under the conditions that the inverter used the unipolarity frequency-doubled modulation mode. On the basis of this, this paper established the sigle-phase inverter model with double loop control mode and determined the parameters of voltage loop and current loop. The Simulink in MATLAB was used to carry out simulation of sharp increase and reduction for the linear load of the inverter model, comparing with the loop-opened or loop-locked harmonic distortion rate for the nonlinear load. The simulation results show that this kind of control strategy can obtain favorable dynamic response and low total harmonic distortion (THD).
    Key words: sinusoidal pulse width modulation inverter; LC filter; double loop control
 
参考文献
[1] 伍健,何礼高,付国清. 电流纹波率分析与输出滤波电感的优化设计[J]. 电力电子技术,2010,44(5):67-69.
[2] 李琛. 基于单极性倍频SPWM调制的逆变电源系统研究[J]. 宁夏工程技术,2009,8(3):197-200.
[3] 徐德鸿. 电力电子系统建模及控制[M]. 北京:机械工业出版社,2006.
[4] 乔庆.3 kW单相并网逆变器谐波抑制问题研究[D]. 武汉:武汉理工大学,2013.
[5] 王博. 基于光伏并网的逆变器并联技术的研究[D]. 合肥:合肥工业大学,2009.
[6] 赵青. 一种基于单极性SPWM控制的正弦波逆变器的研究[D]. 杭州:浙江大学,2004.
[7] 周樑. PWM逆变电源瞬时值反馈控制技术研究[D]. 武汉:华中科技大学,2006.
[8] CHEN C L, WANG Y, LAI J S. Design of Parallel Inverters for Smooth ModeTransfer Microgrid Applications[J]. IEEE Transactions Power Electronics,2010,25(1):6-15.
[9] 姜桂宾,裴云庆,杨旭,王兆安. 采用电容电流瞬时值反馈的UPS 控制方法研究[J]. 电力电子技术,2003,37(6):10-12.
[10] RYAN M J, BRUMSICKLE W E, LORENZ R D.Control Topology Options for Single-Phase UPS Inverters[J].IEEE Transactions on Industry Applications,1995,33(2):493-501.