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[1]闫士杰,闫伟航,冷冰,等. 带阻抗观测器的单相逆变器抗扰控制[J].电机与控制学报,2014,18(07):44-50.
 YAN Shi-jie,YAN Wei-hang,LENG Bing,et al. Control strategy for single inverter with impedance observer[J].,2014,18(07):44-50.
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 带阻抗观测器的单相逆变器抗扰控制(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
18
期数:
2014年07
页码:
44-50
栏目:
出版日期:
2014-07-23

文章信息/Info

Title:
 Control strategy for single inverter with impedance observer
作者:
 闫士杰 闫伟航 冷冰 陈宏志
 东北大学信息科学与工程学院,辽宁沈阳110819
Author(s):
 YAN Shi-jie YAN Wei-hang LENG Bing CHEN Hong-zhi
 School of Information and Engineering,Northeastern University,Shenyang 110819,China
关键词:
 单相逆变器 抗扰控制器 阻抗观测器 扩张状态观测器 波形跟踪
Keywords:
 single-phase inverter disturbance rejection controller impedance observer extended stateobserver waveform tracking
分类号:
-
DOI:
-
文献标志码:
A
摘要:
 针对以单相逆变器为功率接口的太阳能发电系统中电能的快速随机波动和非线性负载接
入时产生的谐波问题,提出一种基于阻抗观测器的抗扰控制策略。该策略主要把造成逆变器输出
电压的波动和产生的谐波等随机量作为一种干扰,将谐波的影响、温度变化的影响、线路和滤波器
的阻抗参数变化等引起的电压变化量等效为阻抗上的电压降。通过构造的阻抗观测器来估算出产
生压降的等效电阻、等效电感和等效电容,然后应用抗扰控制器来消除干扰,自动补偿输出电压变
化,使逆变器输出标准正弦波,提高电能质量。仿真和实验结果表明,不论是逆变器直流侧电压波
动,还是非线性负载的接入,逆变器都能够输出标准电压正弦波。
Abstract:
 In solar energy generation system,the single-phase inverter is a power interface,so the power
energy is rapidly stochastic fluctuated and the harmonics are generated. In order to solve these problems,
a disturbance rejection control strategy based on impedance observer was proposed. In this strategy,the
stochastic variable was regarded as an interference which mainly caused the inverter output voltage fluctuation
and harmonics. Meantime,the output voltage variance caused by harmonics,temperature change
and impedance parameters change of line and filter were regarded as an impedance voltage. Through constructed
impedance observer,the equivalent resistance,equivalent inductance and equivalent capacitance
were estimated. Then by utilizing the disturbance rejection controller,the interference was eliminated and
output voltage variance was automatically compensated,so as to make the inverter outputs the standard sinusoidal
waveform and improve the quality of electric energy. The results of simulation and experimental
show that the inverter outputs normal voltage sinusoidal waveform in fluctuating of DC link voltage of inverter
or of connection of nonlinear load.

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2014-11-30