摘要
目前将PI调节器用于三相PWM整流器外环控制的方法已经非常成熟。为了简化PI参数的整定过程,实质性地分析其调节原理、PI参数影响指令电流进而影响直流侧电压的过程后给出了PI参数的取值范围并说明PI参数增大则网侧谐波增加,PI参数减小则可能会使直流侧电压无法达到给定。最后实验验证了上述分析。
The method of PI regulator used for three-phase PWM rectifier outer loop control is sophisticated.To simplify the process of setting PI parameter,we analyzed the regulating principle and expounded the process that DC-side voltage was influenced by the reference current and by the PI parameter.Accordingly,the range of PI parameters was given.It is revealed that the increase of PI parameters can increase the AC-side harmonics,and the decrease of PI parameters may cause the DC-side voltage not to achieve the given value.Finally,the experimental results verify the described explanation.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2010年第9期2336-2340,共5页
High Voltage Engineering
基金
国家自然科学基金(50977063)
国家高技术研究发展计划(863计划)(2008AA11A145)
天津市科技支撑计划重点项目(09ZCKFGX01800)~~
