互聯微電網之最佳化電力調度與智慧型控制技術開發

Due to the widespread use of renewable energy and microgrids, the issues associated with stable power control, optimal energy management, power dispatch of interconnected microgrids have been of great concerns. Theunsuitable energy arrangement and power dispatch strategy may introduce the additional power loss for the interconnected microgrids, and the insufficient performance of control response would easily lead to the tripping of microgrid and reduce the usage life of the power system equipments. Therefore, improving the robustness to power quality in system control and optimization of energy management and dispatch has become an important issue for both utilities and customers.With the development of high computational ability of microprocessor and intelligent control technique, the high resolution signal processing and adaptive online real-time monitoring and control technology becomes one of efficient application topology for the robust microgrid power regulation and optimal energy management of interconnected microgrids. The conventional Fourier-based analysis methods and proportional integral control are based on batch signal processing mechanism and theorem of synchronous reference frame. However,these methods have the problems of insufficient frequency resolution, interference with power frequency deviation, large stable error, slow control response, etc. To enhance the performance of power regulation of microgrid and achieve the goal of optimal energy management of interconnected microgrids, this project would propose Prony-based parallel computational structure, intelligent control strategy of inverter, power control of low-voltage ride-through, optimal energy management of microgrid with multiple half-interval method,intelligent synchronizer for grid-reconnection, power dispatch and economical optimization of interconnected microgrids. Through the proposed control strategies, the interconnected microgrids can accurately and robustly perform thestable operation and power dispatch when the stable or dynamic power quality disturbances are present.From above, the main tasks of this project can be summarized, which include: (1) Review and compare the recent control methods for microgrid power control, (2) Implement reviewed methods and make comparisons of performance; (3) Design and implement the robust interconnected microgrids and optimal power dispatchaccording to the proposed designing rules, (4) Make the practical field testing and analysis with the developed control and energy management strategies, (5) Propose the remedial strategies to enhance the control stability and performance of interconnected microgrid system.