三相多功能电能表无功电量检测系统设计

Design of Reactive Power Detection System for Three-phase Multi-function Electric Energy Meter

为了全面提升无功电量检测系统的检测性能,本文提出并设计三相多功能电能表无功电量检测系统。结合现阶段电压质量的管理需求以及用户需求进行了全面分析,整合全部电网已有的各类电压检测终端设置,完成三相多功能电能表无功电量检测系统的硬件设计。在上述的基础上,选用单相无功电流检测方法,利用检测系统中基波电压的相位值和简化算法来准确检测三相多功能电能表无功电量。仿真实验结果表明,所设计系统能够准确检测三相多功能电能表无功电量。

In order to comprehensively improve the detection performance of reactive power detection system,this paper designs and proposes a three-phase multi-function energy meter reactive power detection system.Combined with the current management requirements of voltage quality and user requirements,a comprehensive analysis was carried out to integrate the various voltage detection terminal settings of all power grids,and the hardware design of the three-phase multi-function energy meter reactive power detection system was completed.On the basis of the above,the single-phase reactive current detection method is selected,and the phase value of the fundamental wave voltage in the detection system and the simplified algorithm are used to accurately detect the reactive power of the three-phase multi-function electric energy meter.The simulation results show that the designed system can accurately detect the reactive power of the three-phase multi-function electric energy meter.