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针对配电网电源侧谐波实时补偿系统提出了基于小波理论预测检测策略。其核心是跟踪电流基波分量 ,以半周期为采样更新速度 ,对负荷电流的基波分量进行递推式预报 ,避免了相关一般检测方法所引起的时滞。仿真结果表明 ,该检测方法有效、实用。
Aiming at the real-time compensation system of harmonic on the power supply side of the distribution network, a prediction and detection strategy based on wavelet theory is proposed. The core of the system is to track the fundamental component of the current and take the half-cycle as the sampling update rate. The fundamental component of the load current is recursively predicted, avoiding the time delay caused by the relevant general detection methods. Simulation results show that this method is effective and practical.