智能变电站广域调试验证系统安全防护技术

Safety Protection Technology of Intelligent Substation Wide-Area Commissioning and Verification System

为改善智能变电站广域调试系统运行中存在的隐患,提高安全防护能力,设计了综合一体化广域调试验证系统。通过比对国际电工委员会(IEC)安全防护标准,建立电源管理单元(PMU)防护结构,对待加固设备进行安全防护,通过不同程度的加固保证设备安全运行;采用数字信息素图(DPM)回访算法计算防护设备安全系数,再由反馈的安全系数确定设备是否存在安全隐患,分析出设备需要加固的程度,为PMU运行数据提供参考。试验表明,本研究防护系统主要应用于10 kV智能电站,对设备防护范围最大为95.8%,输出安全防护系数为6.1 MPa。

In order to improve the hidden dangers in the operation of the intelligent substation widearea commissioning system and improve the safety protection capability,a comprehensive integrated wide-area commissioning and verification system was designed.By comparing the International Electro technical Commission(IEC)safety protection standards,a power management unit(PMU)protection structure is established to protect the equipment to be reinforced,and the safety of equipment operation through different degrees of reinforcement is ensured. The degree to which the equipment needs to be reinforced is determined by calculating the safety factor with digital pheromone map(DPM)return visit algorithm and judging whether the equipment has safety hazards with the safety factor feedback,which provides a reference for PMU operation data.Tests show that the protection system of this study is mainly applied to 10KV smart power stations,with a maximum protection range of 95.8% for equipment,and an output safety protection coefficient of 6.1 MPa.