摘要
基于内模控制原理,将重复控制技术用于三相航空静止变流器构成新型闭环控制系统,以减小由于负载非线性或不对称引起的输出电压谐波。首先分析得出同步坐标系下三相航空静止变流器的简化模型和开环频率特性;然后针对控制对象设计了内模发生器和补偿器的控制参数,构成新型闭环控制系统。原理样机试验表明,该控制方法解决了三相航空静止变流器带非线性负载时的输出电压波形畸变问题,同时验证了该设计方法的可行性和正确性。
The repetitive control approach was applied to the three-phase aviation static inverter （ASI） based on the internal model principle in this paper. Consequently, a novel three-phase ASI closed-loop system was presented and the output voltage harmonics of the system caused by non-linear loads or unbalanced loads can be reduced distinctly. The simplified model and open-loop frequency responses of the three-phase aviation static inverter were figured out under the synchronous coordinate system firstly in the paper. Then, the internal model generator was designed, and the control parameters of its compensator in frequency domain were derived carefully to form the three-phase ASI closed-loop system in which the control processes of the d and q coordinate models of the ASI are independent with each other. Finally, the prototype was completed, and the simulation and experiment results show that the output voltage wave distortion caused by non-linear loads can be reduced, and control approach in this paper is feasible and correct.
出处
《电工技术学报》
EI
CSCD
北大核心
2006年第9期88-92,共5页
Transactions of China Electrotechnical Society
基金
航空支撑科技基金资助项目(04C52012)
关键词
航空静止变流器
内模原理
重复控制
波形畸变
ASI, internal model principle, repetitive control,waveform distortion
