Planning of OLTC Transformers in LV Systems under Conservation Voltage Reduction Strategy

摘要: The wide voltage control capacity of on-load tap changers (OLTCs) forces them into the list reinforcement alternatives in expansion planning distribution systems. Their high investment and operation cost, however, is a downside. dependent nature loads can be deemed as an opportunity to reduce system demand cost by managing at substation level (referred conservation reduction strategy). Here, it shown that consideration this strategy justifies on OLTCs against other options even for LV Both short-term long-term variations parameters are taken account, since will shown, rate affects decision replacing available transformers with OLTC transformers. proposed method embodies prognosis future modeling operating conditions set daily scenarios hourly time resolution include changing operations objective function. oltcs' matches industry common practice.