冗余 PLC 系统在高压换流阀水冷控制系统中的应用冗余 PLC 系统在高压换流阀水冷控制系统中的应用 摘要:作为直流输电工程的核心设备,高压换流阀的可靠运行至关重要
因此换流阀水冷系统对可靠性的要求也极高
本文从换流阀水冷系统电气控制方面入手,介绍冗余 PLC 控制系统
从控制系统的整体配置到局部安排,从硬件连接方式到软件处理方法,对冗余 PLC 系统进行了说明,阐述了系统的容错能力的提高,从而更高程度上保证了水冷系统的可靠性
关键词:换流阀水冷系统;冗余;PLC;容错 Abstract:As the core ofHVDC transmission system,it is essentially important to ensure safe and reliable operation of HVDC converter
The article describes a redundant PLC system applied in valve-cooling equipment, based on the automatic control’s point of view
It is explained how to improve the fault-tolerant capability by the introduction of not only the whole and local layout but also the solution of hardware and software
Thereby the reliability of the whole valve-cooling equipment is strengthened on a higher platform
Keyword:HV valve water-cooling s