高压开关室环境智能控制系统研发

Devolopment of Intelligent Control System of High Voltage Switch Room Environment

开关室的温、湿度环境对高压设备的安全稳定运行至关重要。由于当前大多数变电站都是无人值守,因此,如何将高压开关室的温湿度自动控制在正常范围内显得尤为重要。本文研究了一种高压开关室自动温湿度自动控制装置的设计方案,该方案采用国产单片机作为控制核心,利用数字型温湿度传感器进行温湿度采样,采用IEC61850与监控后台通信。通过优化PID控制参数,简化反馈值和执行元件,使得高压开关室温湿度控制系统对外部环境变化能够做出快速有效的响应;另外,通过算法对积分环节进行改造以克服饱和作用,修改微分项以抑制噪声,采用数字滤波抗电磁干扰,使得PID调节品质进一步提高,实现了高压开关室温湿度自动控制系统的精确控制与稳定运行。

The temperature and humidity environment in switchgear rooms is crucial for the safe and stable operation of high-voltage equipment.As most substations are unmanned nowadays,it is particularly important to automatically control the temperature and humidity in high-voltage switchgear rooms within the normal range.This paper investigates the design of an automatic temperature and humidity control device for high-voltage switchgear rooms.The proposed solution employs domestically-produced microcontrollers as the control core,utilizes digital temperature and humidity sensors for data acquisition,and communicates with the monitoring backend through IEC61850.By optimizing the PID control parameters,simplifying the feedback value and executive components,the control system can respond rapidly and effectively to changes in the external environment.Furthermore,the integral component is modified to overcome saturation effects,the differential term is adjusted to suppress noise,and digital filtering is employed to resist electromagnetic interference.These measures further enhance the quality of PID control,enabling precise and stable operation of the automatic temperature and humidity control system in high-voltage switchgear rooms.