电网机房逆变核容工程实践

蓄电池组作为发电厂、变电站和换流站直流系统的重要电源,给继电保护、通信控制和事故照明等提供不间断动力,其供电能力是厂站设备稳定运行的最后保障,其性能好坏直接关系到电力系统和通信系统的安全可靠性。因此,蓄电池组的稳定性及实际放电容量对保障电力设备的正常运行有重要意义。逆变核容设备能解决电网变电站机房的电源突发情况,遇到停电断电等突发情况时仍能保障机房的正常运行。该文采用基于工程实践的经验总结法,首先介绍远程逆变核容设备的结构、连接和监测方式,然后从工程实践出发,介绍江门外海站逆变核容设备安装建设施工和调试情况。在施工调测过程中,针对远程核容设备安装、接线和调试过程中遇到的问题,提出详细的解决方案,以供同行借鉴和参考。

As an important power source of DC system in power plant, substation and converter station, battery provides uninterrupted power for relay protection, communication control, accident lighting and so on. Its power supply capacity is the final guarantee for the stable operation of power station equipment, and its performance is directly related to the safety and reliability of power system and communication system. Therefore, the stability of the battery pack and the actual discharge capacity are of great significance to ensure the normal operation of power equipment. The inverter nuclear capacity equipment can solve the power supply emergency in the power grid substation computer room, and can still ensure the normal operation of the computer room in case of power outage and other emergencies. This paper adopts the experience summary method based on engineering practice, first introduces the structure, connection and monitoring mode of the remote inverter nuclear capacity equipment, and then starts with the engineering practice, introduces the installation, construction and commissioning of the inverter nuclear capacity equipment in Jiangmen offshore station. In the process of construction adjustment and testing, aiming at the problems encountered in the installation, wiring and debugging of remote nuclear capacity equipment, a detailed solution is put forward for reference.