| 引用本文: | 阳育德,陶琢,刘辉,覃智君.电力系统静态安全最优潮流并行计算方法[J].电力自动化设备,2019,39(1): |
| YANG Yude,TAO Zhuo,LIU Hui,QIN Zhijun.Parallel computation methods for static security-constrained optimal power flow of power system[J].Electric Power Automation Equipment,2019,39(1): |
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| 摘要: |
| 针对大规模预防性安全约束最优潮流计算耗时长的问题，提出2种基于单机多处理器平台的粗粒度并行计算方法以提高求解效率。依据多预想故障计算过程相互独立的特点合理分解计算任务，平衡各核心负载，降低通信损耗，并利用MATLAB并行工具箱编写具有高并行度的程序代码，充分利用多核资源。得到的优化调度方案可使电网运行同时满足正常状态和N-1故障状态约束，使电力系统具备承受一定程度故障干扰的能力。3个系统的多预想故障设置方案的测试结果表明，所提算法在保证精确性和收敛性的基础上，加速效果明显，易扩展至多机集群架构。 |
| 关键词: 安全约束最优潮流 多核并行 N-1 补偿法 电力系统 |
| DOI：10.16081/j.issn.1006-6047.2019.01.015 |
| 分类号:TM711 |
| 基金项目:国家自然科学基金资助项目(51577085) |
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| Parallel computation methods for static security-constrained optimal power flow of power system |
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YANG Yude, TAO Zhuo, LIU Hui, QIN Zhijun
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Key Laboratory of Guangxi Electric Power System Optimization and Energy-saving Technology, Guangxi University, Nanning 530000, China
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| Abstract: |
| Aiming at the time-consuming problem of large-scale preventive security-constrained optimal power flow, two coarse grained parallel computing methods based on single machine multicore platform are proposed to improve the solving efficiency. According to the mutually independent characterisitics of multi-contingency calculation process, the computation task is decomposed reasonably to balance the loads of each core and reduce the communication loss, and MATLAB parallel toolbox is used to write program code with high parallelism to make full use of multi-core resources. The obtained optimal dispatching scheme can make the grid operation meet the constraints of both normal state and N-1 fault state, and make power grid has the ability to withstand a certain degree of fault interference. The test results of multi-contingency setting schemes of three systems show that the proposed algorithm has obvious acce-leration effect based on the gurantee of accuracy and convergence, and it is easy to be extended to multi-machine cluster architecture. |
| Key words: security-constrained optimal power flow multi-core parallel N-1 compensation method electric power systems |
