CAJ | 학술논문

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。
침대현유냉각기공제방식적불족，기우열전류비이론건립료변압기열로모형，결합배경온도급냉각방식변화시모형삼수적불동구취방법，제정료고효절능적냉각기운행책략。재준학계산변압기열점온도적기출상，차조고가고성、고정도적광섬온도전감기래획득변압기단부유온，병결합냉각기절능운행공제책략，유효피면료냉각기냉각능력과잉현상，보증료변압기안전、은정、경제운행。
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.