基于数字建模技术的变电站直流辅助系统设计  

Design of substation DC auxiliary system based on digital modeling technology

作　　者：郭科 白英 邵雪瑾 王新新 张生艳 GUO Ke;BAI Ying;SHAO Xuejin;WANG Xinxin;ZHANG Shengyan(Ningxia Ningdian Electric Power Design Co.,Ltd.,Yinchuan 750000,China)

机构地区：[1]宁夏宁电电力设计有限公司,宁夏银川750000

出　　处：《现代电子技术》2023年第10期110-114,共5页Modern Electronics Technique

基　　金：宁夏宁电电力设计有限公司基金项目(NXDL22060614020002)。

摘　　要：针对变电站直流系统设计和校验问题,文中提出一种基于数字建模技术的变电站直流辅助系统设计方案。基于C/S结构构建变电站直流辅助系统,其中包括数据层、服务层、业务层、UI层;其次,设计系统的功能方案,包括基础数据库管理、设备库管理和工程库管理模块。直流电源系统计算方案由直流负荷统计与蓄电池容量选择、充电装置模块选择、电缆截面及直流断路器计算、直流断路器选择四部分,以及电缆合格校验和保护电器合格校验两大校验部分组成。利用某220 kV变电站实际工程进行直流辅助系统的工程测试。结果表明,所提系统功能完善,结果符合工程要求,且系统的精确度和准确度均满足实际使用要求。In allusion to the design and calibration of substation DC system,a design scheme of substation DC auxiliary system based on digital modeling technology is proposed.On the basis of C/S structure,the DC auxiliary system of the substation is constructed,which includes the data layer,service layer,business layer and UI layer.The functional scheme of the system is designed,in which the basic database management,equipment library management and engineering library management modules are included.The calculation scheme of the DC power system is composed of four major design parts:DC load statistics and battery capacity selection,charging device module selection,cable cross⁃section and DC circuit breaker calculation,and DC circuit breaker selection,and two major calibration parts of cable qualification verification and protection electrical appliance qualification verification.The engineering test of the DC auxiliary system was carried out on the actual project of a 220 kV substation.The results show that the system function is perfect,the results can meet the engineering requirements,and the precision and accuracy of the system can meet the actual use requirements.

关 键 词：变电站 直流辅助系统 数字建模技术 功能设计 保护电器 直流断路器 电缆校验 工程测试 

分 类 号：TN919-34[电子电信—通信与信息系统] TP274[电子电信—信息与通信工程]