负序和无功综合补偿导纳的快速检测方法

Rapid admittance detection method on compensating reactive and negative sequence power

本文在瞬时无功功率理论的基础上推导出了三相电网负序和无功功率综合补偿导纳的检测方法。该方法不仅可以用于负载侧直接补偿导纳的检测,而且可以用于经过补偿变压器或补偿绕组降压和移相的补偿侧的补偿导纳的检测。该方法与相量法相比,检测速度快,易于实现。在该方法的基础上,本文介绍了采用DSP芯片实现电网负序和无功综合补偿导纳快速检测的装置,采用该装置可以对补偿导纳进行实时的控制。

This paper introduces a new method of detecting the admittance to compensate reactive and negative sequence power in three-phase electric system. This method can be used for detecting the compensative admittance not only on load-side, but also on compensation-side. And through comparing with phase method, this method can realize the detection more quickly. This paper also introduces an equipment which is based on DSP to detect the compensative admittance. And this equipment can gains real-time control on reactive and negative sequence power compensation.