The gas-fired generation has recently become an important power source for power systems. The increasing integration of gas-fired units (GFUs) brings a problem of location allocation strategy for power system planners. This paper proposes a bi-level maximum-minimum optimal placement model of GFUs to improve the static voltage stability in the transmission network. In the first stage, the locations of installed GFUs are optimized to improve the static voltage stability margin. The optimal installed capacity of GFUs is determined to minimize the operation costs and power losses in the second stage. The proposed mixed-integer nonlinear programming (MINLP) model is solved by second-order cone programming relaxations. Numerical results in the IEEE 118-bus test system demonstrate the effectiveness of the proposed method and the static voltage stability can be improved.

中文翻译：

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输电网络中燃气机组的最优选址策略

燃气发电最近已成为电力系统的重要动力源。燃气单元（GFU）集成度的提高给电力系统规划人员带来了位置分配策略的问题。为了提高输电网络的静态电压稳定性，本文提出了一种两层最大-最小最优GFU放置模型。在第一阶段，已安装的GFU的位置被优化以提高静态电压稳定性裕度。确定GFU的最佳安装容量，以最大程度地减少第二阶段的运营成本和功率损耗。拟议的混合整数非线性规划（MINLP）模型通过二阶锥规划松弛来求解。