CAJ | 학술논문

文章针对非线性负载波动对逆变电源的影响，结合单相逆变器状态模型，在原有PI双环控制的基础上，提出了一种数字化控制方案，通过负载电流前馈控制的方式，有效抑制负载突变导致的过电流，并通过极点配置的方式对逆变器PI控制参数进行整定，最后在Matlab/Simulink中进行仿真研究。仿真结果表明，带负载电流前馈的双环控制方法可以在负载波动条件下有效抑制输出电压波动，对非线性负载突变引起的过电流具有很好的抑制能力，鲁棒性强，同时，极点配置的方式对PI控制参数进行整定，计算简单，对逆变器控制的研究具有很好的参考价值。
문장침대비선성부재파동대역변전원적영향，결합단상역변기상태모형，재원유PI쌍배공제적기출상，제출료일충수자화공제방안，통과부재전류전궤공제적방식，유효억제부재돌변도치적과전류，병통과겁점배치적방식대역변기PI공제삼수진행정정，최후재Matlab/Simulink중진행방진연구。방진결과표명，대부재전류전궤적쌍배공제방법가이재부재파동조건하유효억제수출전압파동，대비선성부재돌변인기적과전류구유흔호적억제능력，로봉성강，동시，겁점배치적방식대PI공제삼수진행정정，계산간단，대역변기공제적연구구유흔호적삼고개치。
For the nonlinear load fluctuation’s influence on the inverter power supply,combined with the single-phase inverter state model,based on the original PI loop control,this study puts forward one digital control method. Firstly,use the feed-forward current of load to restrain the over-current caused by the load mutation;Secondly, tuning the parameters of the inverter’s PI-controller through the pole placement method;Finally,the simulation of Matlab is provided.Simulation shows that the method of double loop control with load current feed-forward can effectively suppress the fluctuation of the output voltage caused by load fluctuation ,for the over-current of the nonlinear load mutation has also good inhibitory ability ,strong robustness.Meanwhile the pole placement method of tuning the inverter’s PI-controller’s parameters is easy to calculate.This study has a good value of reference for the study of inverter.