两站串供远方备自投系统控制策略的优化及应用
Optimization and application of control strategy for remote standby automatic transfer system with two-station tandem supply structure
陆帅 1卞林林 1姜梦 1马玉庆 1苏水泉1
作者信息
- 1. 南京磐能电力科技股份有限公司,江苏 南京 210000
- 折叠
摘要
为提高两站单链式供电结构的小型配电网的供电安全,提出一种远方备自投系统控制策略,该控制策略基于无主对等通信的控制模式,采用毫秒级实时交互信息,实现自动识别开环点、故障定位,快速进行故障隔离、小电源切除、供电恢复,可自动识别安稳系统切负荷并闭锁备自投;同时基于国家电网公司九统一低压标准化装置硬件,不改变开入、开出、模拟量、电源等接口的定义方式,仅在CPU板卡增加专用通信模块,降低了成本,方便现场施工和改造升级.仿真测试及现场应用结果均验证了该控制策略的有效性,对其他区域相同电网结构的远方备自投的研究也具有一定的借鉴意义.
Abstract
This paper proposes a control strategy for a remote standby automatic transfer system to enhance the power supply security of small-scale distribution networks with a two-station single-chain power supply structure.This strategy is based on a peer-to-peer communication control mode without a master,utilizing millisecond-level real-time interaction information to automatically identify open points,locate faults,rapidly isolate faults,disconnect small power sources,restore power supply,and automatically identify and lock out load-shedding from the stable system.It also leverages the unified low-voltage standardized device hardware from the State Grid Corporation without changing the definition of the interface,such as input,output,analog,and power,while adding a dedicated communication module to the CPU board.This model reduces cost and facilitates on-site construction and upgrade transformations.Both RTDS simulation tests and field applications verify the effectiveness of this control strategy,offering insights into similar studies for other regions with comparable grid structures.
关键词
远方备自投系统/单链式供电结构/控制策略/仿真测试Key words
remote automatic bus transfer system/single-chain power supply structure/control strategy/simulation test引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据