改进的变压器组优化运行控制策略

Improved Control Strategy of Optimization Operation of Transformer Bank

摘要: 临界点划分法是最常用的变压器经济运行分析方法，其关键是临界负荷值，然而临界负荷值只是一个点值，实际负荷是实时变化的，这样必然会造成变压器的频繁投切，针对这个问题，本文提出临界点划分法和时段划分法相结合的变压器经济运行控制策略，既减小变压器损耗又减少变压器的投切次数，实现变压器的经济运行。以两台变压器为例，通过分析比较不同投切策略的损耗和投切次数，验证本方法的优越性。

Abstract: Boundary division method is the most commonly used transformer economic analysis method, the key is the critical load value. However, the critical load value is only a point value; the actual load is real-time changes, which will inevitably lead to frequent switching of the transformer. In view of this problem, this paper proposes a combination of critical point division and time division of the transformer economic operation control strategy, both to reduce the transformer loss and reduce the number of transformer switching, to achieve the economic operation of the transformer. Taking two transformers as an example, the advantages and disadvantages of this method are verified by analyzing and comparing the loss and switching times of different switching strategies.