Recently, several authors have reported specific criteria to support the widely accepted use of a convex operational model for bulk energy storage in the formulation of power system operation and planning problems involving binary variables. Using two counterexamples, we show that this modeling simplification may give rise to impractical solutions featuring simultaneous charging and discharging, even though the recently published criteria are satisfied. Thus, both counterexamples invalidate those criteria and demonstrate that the customarily used convex model may be unsuitable for the precise incorporation of bulk storage in such instances of mixed-integer programming.

中文翻译：

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在基于 MIP 的电力系统运行和规划中使用凸模型进行大容量储能

最近，几位作者报告了具体标准，以支持广泛接受的大容量储能凸操作模型在涉及二元变量的电力系统操作和规划问题的制定中的使用。使用两个反例，我们表明这种建模简化可能会产生不切实际的解决方案，即同时充电和放电，即使最近发布的标准得到满足。因此，这两个反例都使这些标准无效，并证明通常使用的凸模型可能不适合在这种混合整数编程的情况下精确合并大容量存储。