Comprehensive Dispatching Optimization for Distribution Network Containing Microgrid
Comprehensive Dispatching Optimization for Distribution Network Containing Microgrid
复制标题
含微电网的配电网综合调度优化
DOI：
10.1109/ei2.2018.8582665
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Bo Chen
中科院分区：
文献类型：
--
作者：
Kang Zhao;Bing Zhang;Guangfeng Zhao;Linlin Ma;Bo Chen
微网的并网运行对配电网的经济性和安全性影响越来越大。含微网配电网的调度方法都是以降低微网运行成本为目标的。然而，分销网络通常被忽视。为了降低微网和配电网的总运行成本，提出了一种综合调度优化方法。分别建立了微网和配电网的运行成本优化模型。利用粒子群优化算法和两点估计法，可以得到各模型下微网与配电网之间的最优交换功率，从而得到一个交换功率范围。将此交换功率范围纳入约束条件，以微网和配电网的总运行成本为目标函数，得到综合最优交换功率。考虑各时段综合最优交换功率的运行状态，确定最优调度方案。以一个改进的IEEE 33节点系统为例，验证了该方法的有效性。
The economic and security of distribution network are more and more influenced by the integrated microgrid. The dispatching methods available for distribution network containing microgrid are all aimed at lowering the operation cost of microgrid. The distribution network, however, is usually ignored. In this paper, a comprehensive dispatching optimization method is proposed to lower the total operation cost of microgrid and distribution network. The optimization model for operating cost of microgrid and distribution network is established respectively. With PSO algorithm and two-point estimation method, the optimal exchange power between microgrid and distribution network of each model can be obtained, which makes an exchange power range. With this exchange power range included into constraints and the total operation cost of microgrid and distribution network as objective function, the comprehensive optimal exchange power can be obtained. Considering the operation state with the comprehensive optimal exchange power at each time interval, the optimal dispatching scheme could be defined. A modified IEEE 33-bus system is used as example to validate the effectiveness of the proposed method.