河北师范大学学报—

期刊信息

刊名：河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
主办：河北师范大学
ISSN： 1000-5854
CN： 13-1061/N
中国科技核心期刊
中国期刊方阵入选期刊
中国高校优秀科技期刊
华北优秀期刊
河北省优秀科技期刊

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基于51单片机的无功功率检测系统设计

（齐鲁工业大学（山东省科学院）信息与自动化学院,山东济南 250353）
DOI： 10.13763/j.cnki.jhebnu.nse.202302003

Design for Reactive Power Detection System Based on 51 Single-chip Microcomputer

WANG Zuoxun, ZHANG Wenzhu

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摘要/Abstract

摘要：

对于电力系统而言,低压电网所使用的电气设备以感性负载为主. 传统的无功功率检测和补偿设备难以满足相关需求,存在检测精度差、体积庞大等缺陷,容易出现投射振荡等问题,使无功补偿的实际作用难以发挥. 为确保电力系统无功功率平衡,必须在电力系统中安装无功检测装置,待完成电力系统无功功率检测后,再使用相关设备进行无功功率补偿.主要针对传统的检测方法和装置存在的误差大和实时性差等弊端,设计了一种以STC12C5A60S2为系统控制中心,根据电网系统中电压与电流信号的采样结果来完成相关计算的检测系统,从而实现对无功功率实时、准确的检测.

Abstract：

For the power system,the electrical equipment used in the low-voltage grid is mainly inductive load. The traditional reactive power detection and compensation equipment is hard to meet the relevant requirements. There exist defects such as poor detection accuracy and large size,which are prone to problems such as projection oscillation,making it difficult to work. In order to ensure the balance of reactive power in the power system,a reactive power detection device should be installed in the power system. When the reactive power detection of the power system is completed,the relevant equipment is used for reactive power compensation. Considering the short comings of traditional detection methods and devices,such as large errors and poor real-time performance,a new method is designed with STC12C5A60S2 as the system control center in this work. According to the sampling results of the voltage and current signals in the power grid system,the relevant calculation is completed,so as to realize real-time and accurate detection of reactive power.

关键词

关键词： 无功功率 ; STC12C5A60S2单片机 ; 功率因数 ; 实时监测

Key words： reactive power ; STC12C5A60S2 MCU ; power factor ; real time monitoring

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