无功电容补偿自动控制装置设计  

Design of the Auto-Control Device for Reactive Capacitance Compensation

作　　者：李晓刚[1] 程勇[1] 马波 

机构地区：[1]山东科技大学,山东青岛266510 [2]山东高速泰安管理处,山东泰安271000

出　　处：《低压电器》2007年第7期35-38,共4页Low Voltage Apparatus

摘　　要：设计了一种智能化无功电容补偿装置。利用电路中所接负载特性不同,线电压与线电流相位差不同的特点,设计的相位差检测电路及算法能够准确地判断出当前电路中负载特性,再选择投入还是切除电容器组。电力电容投切控制算法可根据线路的无功功率判断所需投入或切除电容的最佳容量,并根据电容器组的使用频率进行选择。本装置能有效改善供电质量,提高设备的使用寿命,具有很好的应用推广价值。An intelligent reactive capacitance compensation device compensation device was designed. Based on the different characteristics of load connected in the circuit and the different phase offset between line voltage and line electric current, the designed phase offset testing circuit and algorithm can exactly determined the load characteristic in the present circuit and can choose, according to the load features, to switch on or off the capacitor group. Electrical capacitor switching control algorithm, based on the reactive power of the line, determines the best capacity of the capacitor; and according to the use frequency of the capacitor groups, it can choose the most appropriate. This device is effective in improving the quality for power supply and and useful in extending the service period of equipments and therefore is feasible in wide application in practice.

关 键 词：投切 相位差 算法 

分 类 号：TM761.1[电气工程—电力系统及自动化]