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Research on the control strategy of parallel inverter based on FPGA
Author(s): 
Pages: 92-94
Year: Issue:  5
Journal: ELECTRONIC MEASUREMENT TECHNOLOGY

Keyword:  感应加热现场可编程门阵列并联逆变;
Abstract: 本文提出了一种基于FPGA的并联逆变控制电路的全数字化控制方法,控制电路由全数字锁相环、数字扫频启动环节和重叠角控制环节组成.文中采用的改进型全数字锁相环可以很快捕捉到负载频率变化,基于定角控制原理的重叠角控制电路,可以在加热过程中保持恒定的功率因数角.文中详细设计和分析了各功能模块并进行了相应的仿真,仿真结果证明该控制电路锁相范围宽,可调节性强,可以完成控制目标,能够替代模拟电路实现对逆变器的控制,具有广阔的应用前景.
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