摘要
针对恶劣环境中电网电压变化大的弊端和不同的用电设备对输入电压值的不同要求,设计出了一种宽范围输入和输出可调的特种三相交流稳压电源,同时,为消除各种瞬态突变对系统的影响,运用PID和重复控制的相关知识,设计出了防瞬态突变算法。该电源系统应用Sepic斩波电路把整流后的直流母线电压调节到满足逆变所需的电压值,进而通过防瞬态突变算法,控制逆变器实现稳压。当输出电压参考值变化时,改变直流母线输出的电压值,再根据控制算法使输出电压达到新的稳定状态,输出电压范围宽且连续可调。
In order to overcome the weakness of voltage change much for harsh environments and different requirements of input voltage for different electric-requirements,a wide range of special three-phase AC voltage-stabilized power supply with wide range input and output is proposed,furthermore,in order to eliminate all the transient effects of mutation on the system,preventing transient change algorithm is proposed based on PID control and repetitive control related knowledge.The chopper circuit is used to increasing voltage of DC bus voltage for the required voltage inverter,and then through preventing transient change algorithm achieves voltage stabilization.When the reference output voltage is changed,the DC bus voltage value is changed,then by using the control algorithm; the system comes to a new state regulator,wide ranges of output voltage and is adjustable continuously.
出处
《电子测量技术》
2013年第11期21-25,共5页
Electronic Measurement Technology
关键词
特种电源
宽范围
瞬态突变
PID控制
重复控制
special power supply
wide range
transient change
PID control
repetitive control
