高层建筑中低压配电系统的线路无功优化技术研究

Research on the Low-voltage Distribution Line Reactive Power Optimization Technology in High-rise Buildings

为了提高高层建筑中低压配电系统中的供电效率,降低电能损耗,提出一种基于智能无功补偿优化模型的无功补偿方法。将给高层供电的变电站、线路、调节变压器等子站的智能无功补偿装置通过无线通信系统相连接,协调统一进行无功补偿量的优化决策;建立无功补偿优化模型,将全天高层建筑中低压配电系统中的电能损耗之和最小设置为目标函数,将电容器的投切和调节变压器的分接开关作为控制量,将电容器容量和线路中的电压作为约束条件。仿真实验表明,改进方法能够有效降低高层建筑中低压系统中的无功功率,效果令人满意。

In order to improve the efficiency of power supply of low-voltage distribution system in highrise building, reduce the loss of electrical power, put forward a kind of reactive power compensation based on intelligent optimization model of reactive power compensation method. Will give high power substation, lines, regulating transformer DengZi station intelligent reactive power compensation device connected through wireless communication system, harmonious and unified, the amount of reactive power compensation optimization decision-making; Reactive power compensation optimization model is set up, will all day in the low-voltage distribution system in high-rise building electrical energy loss is set to minimizing the sum of the objective function, the capacitor cutting and the regulating transformer tap-changer control quantity, as the capacitor capacity and voltage in a circuit as constraint conditions.Simulation experiment indicates that the improved method can effectively reduce the reactive power in the low pressure system in high-rise building, the effect is satisfactory.