摘要
针对现有冷却器控制方式的不足,基于热电类比理论建立了变压器热路模型,结合环境温度及冷却方式变化时模型参数的不同求取方法,制定了高效节能的冷却器运行策略。在准确计算变压器热点温度的基础上,借助高可靠性、高精度的光纤温度传感器来获得变压器端部油温,并结合冷却器节能运行控制策略,有效避免了冷却器冷却能力过剩现象,保证了变压器安全、稳定、经济运行。
Aiming at insufifciency of the existing cooler control method, this paper built up a transformer thermal route model based on the thermoelectricity analogy method. Combined with different obtaining method in changes of environment temperature and cooling means, highly effective energy saving cooler operation strategy was made. On the basis of correct transformer thermal point temperature calculation, the ifber temperature sensor with high reliability and high accuracy could obtain transformer’s end part oil temperature value. Combined with cooler energy saving operation strategy, the system has effectively avoided cooler’s cooling capacity surplus situation, to have ensured trans-former in safe, stable and economic operation.
出处
《电工电气》
2014年第8期34-37,共4页
Electrotechnics Electric
关键词
油浸式变压器
热电类比法
节能环保
热点温度
冷却系统
oil-immersed transformer
thermoelectricity analogy method
energy saving and environmental protection
thermal point tem-perature
cooling system
