CAJ | 학술논문

为了提升微电网切换到孤岛状态时的稳定性，提出了一个两层的混合控制策略。第一层是由连续的本地控制器控制每个分布式电源，本地控制器的设计是基于李雅普洛夫理论的线性矩阵等式技术，通过调整分布式电源子系统的设定点，使其达到最好的性能和合适的运行指数；第二层是通过分散监控控制进行协调，分散监控控制是建立在信息融合基础上，也就是使用广域测量系统，在有大的扰动情况下转换分布式电源子系统进入一个合适的运转状态。仿真结果表明，在事先计划的或者偶然情况下微电网的暂态稳定性得到了较大提升。
위료제승미전망절환도고도상태시적은정성，제출료일개량층적혼합공제책략。제일층시유련속적본지공제기공제매개분포식전원，본지공제기적설계시기우리아보락부이론적선성구진등식기술，통과조정분포식전원자계통적설정점，사기체도최호적성능화합괄적운행지수；제이층시통과분산감공공제진행협조，분산감공공제시건립재신식융합기출상，야취시사용엄역측량계통，재유대적우동정황하전환분포식전원자계통진입일개합괄적운전상태。방진결과표명，재사선계화적혹자우연정황하미전망적잠태은정성득도료교대제승。
To enhance the stability of the micro-grid when switching to an island state, a two-layer control strategy is studied. The first layer consisting of continuous local controllers controls each distributed power unit, which is designed by means of the linear matrix equation technique based on Lyapunov theory, and through adjusting the set point of distributed power subsystem, achieves the best performance and suitable running index. The second layer is coordinated through decentralized supervisory control, the decentralized supervisory control is built on the basis of information fusion, which used wide area measurement system, and in the case of large distribution, the subsystem is converted into a proper operating state. Simulation results show that the transient stability of microgrid in the pre-planned or accidental cases are greatly improved.