基于多参信息量的继电保护整定计算系统  

Relay Protection Setting Calculation System Based on Multi Parameter Information

作　　者：汪娇娇 WANG Jiao-jiao(Maoming Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Maoming 525000 China)

机构地区：[1]广东电网有限责任公司茂名供电局,广东茂名525000

出　　处：《自动化技术与应用》2024年第1期30-34,共5页Techniques of Automation and Applications

摘　　要：为了保证定值数据一致性,实现配电网稳定运行,设计基于多参信息量的继电保护整定计算系统。使用GIS系统按地理位置绘制配电网图形,动态获取多参信息量;构建整定计算模块,使模块元加以调用并组合;设计基于GUI开发图形的人机交互可视化模块,使整定结果以图表形式展示。整合多参信息量为一个定值集,利用导纳矩阵稀疏性,只存储和计算非零元参量。计算正序、负序和零序三个网络下的短路三序电流,并对其进行灵敏度校验,获取整定结果。系统实现对保护整定的可视化显示,并且将整定结果以静态的表格形式呈现。将整定过程中的相关信息以数据柱的形式进行整理,最后将整定的结果以数据库的形式显示出来。实验结果表明,设计系统的整定计算结果精准度最高可达99.06%,表明整定计算结果效果较好。In order to ensure the consistency of setting data and realize the stable operation of distribution network,a relay protection setting calculation system based on multi parameter information is designed.Using GIS system to draw distribution network graphics according to geographical location and dynamically obtain multi parameter information.The setting calculation module is constructed,and the module elements are called and combined.The human-computer interaction visualization module based on GUI is designed to display the setting results in the form of charts.The multi parameter information is integrated into a fixed value set,and only non-zero element parameters are stored and calculated by using the sparsity of admittance matrix.It calculates the short-circuit three sequence current under positive sequence,negative sequence and zero sequence networks,verifies its sensitivity,and obtains the setting results.The system realizes the visual display of protection setting,and presents the setting results in the form of static table.It sorts out the relevant information in the setting process in the form of data column,and finally displays the setting results in the form of database.The experimental results show that the accuracy of the setting calculation result of the designed system is up to 99.06%,indicating that the setting calculation result is better.

关 键 词：多参信息量 继电保护 整定 导纳矩阵 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TM77[自动化与计算机技术—计算机科学与技术]