求解含储能装置的微电网动态最优潮流的对偶半定规划方法

发布时间：2018-06-23 01:42

本文选题：微电网 + 动态最优潮流　；参考：《电网技术》2017年09期

【摘要】：电网动态最优潮流是一个全天24个时间断面耦合的最优潮流问题,需要考虑常规机组爬坡率约束和分布式储能装置能量约束。具有二阶收敛特性的内点法可以对其进行快速求解,但无法保证解的全局最优性。采用对偶半定规划法求解该问题,对孤岛运行的微电网动态最优潮流原始模型及向对偶半定规划模型的转换做了详细的介绍,并给出了严格的全局最优性判据。同时将储能装置的强非线性模型等价地变换成线性模型,并给出了相应的证明。某实际微电网和IEEE 30节点系统的测试结果表明,对偶半定规划法可高效求解动态最优潮流问题,其解可保证全局最优性。
[Abstract]:The dynamic optimal power flow is an optimal power flow problem which is coupled with 24 time sections throughout the day. It is necessary to consider the slope climbing rate constraints of conventional units and the energy constraints of distributed energy storage devices. The interior point method with second order convergence can be solved quickly, but it can not guarantee the global optimality of the solution. The dual semidefinite programming method is used to solve the problem. The original model of dynamic optimal power flow and the transformation to dual semidefinite programming model are introduced in detail, and the strict global optimality criterion is given. At the same time, the strong nonlinear model of energy storage device is transformed into a linear model on an equivalent basis, and the corresponding proof is given. The test results of a practical micro-grid and IEEE 30-bus system show that the dual semidefinite programming method can efficiently solve the dynamic optimal power flow problem, and its solution can guarantee the global optimality.
【作者单位】：华南理工大学电力学院;
【基金】：国家重点基础研究发展计划(973计划)(2013CB228205)~~
【分类号】：TM727;TM74

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