| 考虑风电接入的交直流互联电网动态最优潮流 |
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| 引用本文： | 王斌,夏叶,夏清,张慧玲,韩红卫.考虑风电接入的交直流互联电网动态最优潮流[J].电力系统自动化,2016,40(24):34-41. |
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| 作者姓名： | 王斌 夏叶 夏清 张慧玲 韩红卫 |
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| 作者单位： | 清华大学电机工程与应用电子技术系, 北京市 100084; 电力系统及发电设备控制和仿真国家重点实验室, 清华大学, 北京市 100084; 国家电网公司国家电力调度控制中心, 北京市 100031,清华大学电机工程与应用电子技术系, 北京市 100084; 电力系统及发电设备控制和仿真国家重点实验室, 清华大学, 北京市 100084,清华大学电机工程与应用电子技术系, 北京市 100084; 电力系统及发电设备控制和仿真国家重点实验室, 清华大学, 北京市 100084,国网宁夏电力公司调度控制中心, 宁夏回族自治区银川市 750001,国网宁夏电力公司调度控制中心, 宁夏回族自治区银川市 750001 |
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| 基金项目： | 国家科技支撑计划资助项目(2013BAA01B02);国家电网公司科技项目(5229NX15002B) |
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| 摘 要： | 针对考虑风、火协调的交直流互联电网日前经济调度问题,提出了时空协调、主子迭代的复杂交直流互联系统建模及求解框架,以降低该高非线性问题的求解复杂度。通过精细化考虑交流潮流、直流输电系统稳态运行特性、双馈风电机组及无功补偿装置特性等运行约束条件,建立了风、火、直流线路协调优化的日前动态最优潮流主、子问题模型,在确保日前计划潮流、电压不越限的前提下,为有功、无功协调优化奠定了模型基础。为求解该复杂非线性优化问题,文中基于Benders分解法提出了主、子问题并行高效迭代的求解算法,在保证求解最优的前提下,有效提高了求解效率。算例分析从安全性、经济性、收敛性、高效性等方面验证了文中所述模式、模型和求解方法的有效性。
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| 关 键 词： | 风力发电 交直流互联电网 动态最优潮流 Benders分解 |
| 收稿时间： | 2016/1/25 0:00:00 |
| 修稿时间： | 2016/10/16 0:00:00 |
Wind Power Integrated Dynamic Optimal Power Flow for AC/DC Interconnected System |
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| WANG Bin,XIA Ye,XIA Qing,ZHANG Huiling and HAN Hongwei.Wind Power Integrated Dynamic Optimal Power Flow for AC/DC Interconnected System[J].Automation of Electric Power Systems,2016,40(24):34-41. |
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| Authors: | WANG Bin XIA Ye XIA Qing ZHANG Huiling and HAN Hongwei |
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| Affiliation: | Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Tsinghua University, Beijing 100084, China; National Electric Power Dispatching and Control Center, State Grid Corporation of China, Beijing 100031, China,Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Tsinghua University, Beijing 100084, China,Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Tsinghua University, Beijing 100084, China,State Grid Ningxia Electric Power Company Dispatching & Control Center, Yinchuan 750001, China and State Grid Ningxia Electric Power Company Dispatching & Control Center, Yinchuan 750001, China |
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| Abstract: | Security-constrained economic dispatch(SCED)is the key issue for achieving secure, economic and efficient operation of AC/DC Interconnected system. To this end, a new iterative SCED mode is proposed to coordinate the problem both in time and space dimension. An SCED model for AC/DC Interconnected system is established taking AC power flow equations, DC transmission system static operation functions, and time interval coupled constrains into consideration. To solve the problem of large-scale non-linear programming model, an efficient iterative algorithm is proposed based on Benders decomposition method. Case study is conducted to validate the effectiveness of the proposed mode, model and method in three aspects containing optimal benefit, convergence progress and computational efficiency. This work is supported by National Key Technologies R&D Program(No. 2013BAA01B02)and State Grid Corporation of China(No. 5229NX15002B). |
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| Keywords: | wind power generation AC/DC Interconnected system dynamic optimal power flow Benders decomposition |
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