| 引用本文: | 邓晓帆,王蕾,刘建涛,郑春旭.计及静态电压稳定约束的最少发电机优化调度方法[J].电力自动化设备,2024,44(1):153-159. |
| DENG Xiaofan,WANG Lei,LIU Jiantao,ZHENG Chunxu.Optimal dispatch method with minimum generator considering static voltage stability constraint[J].Electric Power Automation Equipment,2024,44(1):153-159. |
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| 摘要: |
| 电压稳定控制中的控制数量多，且紧急状态时要求控制措施快速响应。构建一种以最少发电机调整数量为目标的优化调度数学模型，该模型为包含离散变量和连续变量的非线性混合整数规划问题，为快速获得高质量的可行解，提出一种由快速筛选和模型转化组成的阶段式求解方法。利用负荷裕度对发电机有功出力的灵敏度快速筛选出可提高负荷裕度的发电机集合，缩小离散变量的搜索范围；将原问题转化为混合整数线性规划子问题以及非线性规划子问题进行交替求解，得到需要调整的发电机数量及其出力。通过IEEE 118和IEEE 300节点系统进行测试，结果表明所提控制模型和求解方法可有效提高电力系统负荷裕度，减少可行解中包含的发电机调整数量，与分支定界法的对比验证了所提求解方法的快速性和有效性。 |
| 关键词: 发电机出力调整 最少控制数量 静态电压稳定性 阶段式求解方法 可行性泵算法 |
| DOI：10.16081/j.epae.202302006 |
| 分类号:TM73 |
| 基金项目:国家自然科学基金资助项目(51707109)；山东省自然科学基金资助项目(ZR2022ME187) |
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| Optimal dispatch method with minimum generator considering static voltage stability constraint |
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DENG Xiaofan1, WANG Lei1, LIU Jiantao1, ZHENG Chunxu2
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1.School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China;2.State Grid Zibo Power Supply Company, Zibo 255000, China
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| Abstract: |
| The control number in voltage stability control is large, and the control measure is required to quickly response in the emergency state. An optimal dispatch mathematical model with the minimum adjustment number of generators as the object is constructed, which is a nonlinear mixed integer programming problem containing discrete variables and continuous variables. In order to quickly obtain high-quality feasible solutions, a staged solution method consisting of rapid screening and model transformation is proposed. The sensitivity of load margin to generator active power output is used to quickly screen out the generator set that can improve the load margin, which reduces the searching range of discrete variables. The original problem is transformed into a mixed integer linear programming sub-problem and a nonlinear programming sub-problem for alternative solution, and the number and output of generators need to be adjusted are obtained. Tests are carried out on IEEE 118-and 300-bus systems, results show that proposed control model and solution method can effectively improve the load margin of power system and reduce the adjustment number of generators in the feasible solutions, the comparison with the branch and bound method shows the rapidity and effectiveness of the proposed solution method. |
| Key words: generator output adjustment minimum control number static voltage stability staged solution method feasibility pump algorithm |
