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针对三相四线制有源电力滤波器,采用双DSP的数字控制系统,详细分析了主从DSP的主要工作原理和软件流程,以及它们之间的SPI通信原理和通信流程,并且通过试验验证了该控制系统所采用的数字控制方法的优越性、正确性和有效性。
For the three-phase four-wire active power filter, a dual-DSP digital control system is used to analyze the main working principle and software flow of the master-slave DSP and the SPI communication principle and communication flow between them. The advantages, correctness and validity of the digital control method adopted by this control system.