基于广义电流最小化理论的矿井提升机无功控制策略分析

Analysis of Reactive Power Control Strategy of Mine Hoist Based on Generalized Current Minimization Theory

把矿井提升机产生的无功功率作为无功发生源和谐波源,分析了瞬时功率理论中的广义电流最小化原理,将矿井提升机定子电流分解为有功分量和无功分量,计算出有功功率继而得到无功功率。运用广义电流最小化原理补偿,实现对无功功率的控制。设计了广义电流最小化原理系统仿真模型,对广义电流最小化原理补偿方案进行仿真验证,实验结果表明:补偿方案提高了系统的功率因数。

The reactive power produced by the mine hoist is used as the source of the reactive power source, and the principle of the generalized current minimization in the instantaneous power theory is analyzed. The stator current of the mine hoist is decomposed into active component and reactive component, and the reactive power is calculated and the reactive power is obtained. The principle of generalized current minimization is used to compensate reactive power. The system simulation model of the generalized current minimization principle is designed, and the compensation scheme of the generalized current minimization principle is simulated and verified. The experimental results show that the compensation scheme improves the power factor of the system.