CAJ | 학술논문

介绍了一种基于DSP的电网三相无功功率测量系统，系统采用软件锁相对一个周期内的信号进行等间隔的采样，利用快速傅里叶算法计算无功功率等电量参数，为实时补偿无功功率提供依据。给出了系统相应的硬件设计电路和软件设计，经实际测量验证了系统的可行性和准确性。
개소료일충기우DSP적전망삼상무공공솔측량계통，계통채용연건쇄상대일개주기내적신호진행등간격적채양，이용쾌속부리협산법계산무공공솔등전량삼수，위실시보상무공공솔제공의거。급출료계통상응적경건설계전로화연건설계，경실제측량험증료계통적가행성화준학성。
A three-phase reactive power measurement system based on DSP was introduced in this paper. The signals in one cycle were sampled at equal intervals by using the software phase-lock, and the FFT algorithm was adopted to calculate power parameters such as reactive power, which could provide the basis for the real-time reactive power compensation. The hardware circuit design and software design were given in this paper, and the feasibility and accuracy of the system were verified by actual measurements.