赵长军, 周 丽, 司晓峰, et al. Research on DG location selection and power sharing method of sag control microgrid based on MILP[J]. 2024, 26(4). DOI: 10.3969/j.issn.1009-1831.2024.04.004.
提出一个适用于微电网的混合整数线性规划(mixed-integer linear programming
MILP)问题
旨在实现微电网之间的比例无功功率共享。首先
研究了DG的最佳尺寸和放置位置
对涉及的各种非线性项进行了线性化的详细讨论;之后
针对给定的负荷曲线
在这些DG上生成一天的提前调度;然后
为了更准确地建模负载
采用了实际的恒定阻抗-电流-功率(ZIP)负荷模型;最后
用所提方法在一个经过修改的33总线网络上进行测试
实验结果验证了所提出的规划和调度方法的准确性。
Abstract
Reactive power sharing among distributed generators(DG)is a key problem in droop control based microgrid operation. Thecauses of unequal reactive power sharing include feed impedance differences
load differences
and uneven distribution of DG in size andposition. Therefore
a mixed-integer linear programming(MILP)problem for microgrids is presented to achieve proportional reactive powersharing among microgrids. Firstly
the optimum size and position of DG are studied
and various nonlinear terms involved are linearized indetail. Then a one-day advance schedule is generated on these DGs for a given load profile. After that
an actual ZIP load model is used tomodel the load more accurately. Finally
the proposed method is tested on a modified 33-bus network. The experimental results verify theaccuracy of the proposed planning and scheduling methods