基于semi-Markov理论的含多类型异质能源微电网态势感知研究

项目基于semi-Markov理论与状态估计方法研究含多类型异质能源微电网的态势感知问题。首先，建立semi-Markov跳变微电网模型，用于更准确地刻画微电网中分布式发电设备、多类型负荷等随机切换动态特征；其次，围绕模型不确定性、未知干扰等现象，研究计及多性能指标的semi-Markov跳变微电网的鲁棒态势感知方案；再次，针对模态转移速率部分未知的情况，探索适应性强、灵活性高的semi-Markov跳变微电网的多目标态势感知方案；最后，研究微电网中多类型异质能源之间的非线性耦合特性，拓展建立耦合semi-Markov跳变微电网模型，探究其计及多目标、多性能指标的分布式态势感知策略；通过PSCAD/MATLAB仿真软件，验证含多类型异质能源微电网态势感知方案的有效性。项目旨在探索含多类型异质能源微电网的建模与感知新方法，预期为保障微电网的安全、稳定运行提供新思路。

This project aims to investigate the state perception problem for the micro-grid with multi-type heterogeneous energy based on semi-Markov theory and state estimation method. Firstly, the semi-Markov jump micro-grid model is presented, which can much accurately describe some stochastic switching dynamic characteristics of the distributed generation equipment and multi-type loads in the micro-grid. Secondly, considering the influences of mode uncertainty and unknown disturbance, etc., a robust state perception scheme considering multi-performance indexes is proposed for the semi-Markov jump micro-grid. Thirdly, the multi-objective state perception scheme of the micro-grid with strong adaptability and high flexibility is explored considering the partly unknown transition rate. Finally, considering the nonlinear coupling characteristics of the multi-type heterogeneous energy in micro-grid, the extended coupled semi-Markov jump micro-grid model is established, and the distributed state perception scheme with multi-objective and multi-performance indexes is explored. By using PSCAD/MATLAB software platform, the validity of the state perception schemes for the micro-grid with multi-type heterogeneous energy are tested. The purpose of this project is to explore new method of modeling and state perception of the micro-grid with multi-type heterogeneous energy, which is expected to provide a new idea for ensuring the security and stability operation of the micro-grid.