CAJ | 학술논문

针对400Hz逆变电源输出电压波形的畸变问题,采用了重复控制技术解决方案.并根据该控制自身存在的问题,引入了电压有效值外环和电容电流瞬时值内环控制.系统利用重复控制抑制非线性负载下的电压畸变,电流瞬时值反馈控制提高系统的动态响应性能,构成了新型多环控制系统.该控制系统的有效性已在三相6kVA逆变电源实验样机上得剑证实.实验结果表明,该方案可保证系统有较快的动态响应、较高的稳态精度和较小的输出电压谐波畸变率.
침대400Hz역변전원수출전압파형적기변문제,채용료중복공제기술해결방안.병근거해공제자신존재적문제,인입료전압유효치외배화전용전류순시치내배공제.계통이용중복공제억제비선성부재하적전압기변,전류순시치반궤공제제고계통적동태향응성능,구성료신형다배공제계통.해공제계통적유효성이재삼상6kVA역변전원실험양궤상득검증실.실험결과표명,해방안가보증계통유교쾌적동태향응、교고적은태정도화교소적수출전압해파기변솔.
For the issue of 400 Hz inverter output voltage waveform distortion,the repetitive control technology solution is adopted,the voltage effective value outer loop control and the instantaneous current inner loop control are inducted for the repetitive control's own shortcomings.The repetitive control is used to reduce voltage distortion under nonlinear loads,the inner current loop control is used to gain favorable dynamic response process,and constitute a multi-loop control system.The effectiveness of the control system is confirmed in the three-phase 6 kVA inverter power supply ,and the experimental results provide that the scheme can ensure the system having fast dynamic response, high steady-state precision and low THD.