变频器输出双闭环神经元解耦控制研究  

RESEARCH OF DOUBLE-LOOP NEURON DECOUPLING CONTROL OF FREQUENCY CONVERTER OUTPUT

作　　者：肖永涛[1] 陈宝华[2] 

机构地区：[1]湖南人文科技学院,娄底417000 [2]娄底职业技术学院,娄底410200

出　　处：《太阳能学报》2016年第6期1367-1372,共6页Acta Energiae Solaris Sinica

基　　金：湖南省教育厅科学研究项目(10C0833)

摘　　要：为提高变频器的抗扰能力和输出电压电流的质量,针对传统闭环控制精度不高,鲁棒性不强等缺点,提出一种改进型的神经元解耦控制的电压电流双闭环控制方案,利用电压外环实现对输出电压的稳定控制,电流内环实现对输出电流的控制,电压环包含负载电流前馈及输出滤波电容电流解耦,电流环包含输出电压前馈及输出滤波电感电压解耦,利用神经元PID控制器的自适应调节能力,系统能够有效地抵抗输入及负载上的各种扰动,通过SIMULINK仿真分析,这种控制策略相对于常规的单闭环控制和双闭环PID控制,输出电压波形畸变小,动态响应快,超调小,有很好的负载适应能力。In order to improve the anti-interference ability and the voltage and current output quality of frequency converter, and considering the lower control accuracy and not strong robustness of the traditional closed-loop control, a modified neuron decoupling control scheme with the voltage and current double closed-loop control was presented. The voltage and current controllers were set up through analyzing the mathematical model under two phase synchronous rotating frame. The voltage was used to perform stable control of output voltage, the current inner loop was used to perform the control of output current. The voltage loop includes the feed-forward of load current and current decouple component of output filtering capacitance, the current loop includes the feed-forward of output voltage and voltage decouple component of output filtering inductance. The system can effectively resist the sundry disturbances of the input and the load because of the adaptive capacity of the neuron PID controller. The SIMULINK simulation analyses show that the novel control strategy has desirable dynamic performance and strong robustness to the input and output disturbance with small waveform distortion, fast dynamic response, small overshoot and good load adaptability compared with the conventional single closed-loop control and double closed-loop PID control.

关 键 词：变频器 电压电流双闭环控制 解耦控制 

分 类 号：TM461[电气工程—电器]