tailieunhanh - Summary of Engineering doctoral thesis: Study on stabilization and optimization of a large-scale system applying for power systems

The objectives of the thesis are to study on a method to analyze a large-scale system into a number of relatively independent subsystems (interconnected subsystems). Then, the dissertation will focus on designing a decentralized control method for the large-scale system which has been decomposed into the interconnected subsystems. | MINISTRY OF VIETNAM ACADEMY OF EDUCATION AND SCIENCE AND TRAINING TECHNOLOGY GRADUATE UNIVERSITY SCIENCE AND TECHNOLOGY . . VU DUY THUAN Study on stabilization and optimization of a large-scale system applying for power systems Major Control theory and Optimization control Code SUMMARY OF ENGINEERING DOCTORAL THESIS Hà Nội 2018 INTRODUCTION The urgency of the thesis Study on large-scale systems have been facing a lot of challenges. One of the most difficulties is the increasing complexity of the mathematical models of the systems. This is due to a mutual influence of complex technology processes environments and society on the system. In addition calculation increase of each system cannot be compared to the increase of its size. These difficulties make the design of an efficient control strategy to deal with the stability and reliability of a large-scale system especially for a multi-machine interconnected power network highly challenging. 2. The objectives ranges objects and research methods of the thesis a The objectives The objectives of the thesis are to study on a method to analyze a large-scale system into a number of relatively independent subsystems interconnected subsystems . Then the dissertation will focus on designing a decentralized control method for the large-scale system which has been decomposed into the interconnected subsystems. The proposed control strategy has been applied for a multi-machine electric power system which is a typical example of the large-scale systems. With the above objectives the dissertation consists of the following contents - Study on large-scale systems characterized by a number of nonlinearities and uncertainties. 1 - Design two control problems for a large-scale power system including decentralized control for transient stability issue and hybrid control strategy for load-frequency control. - Design simulation model in MATLAB Simulink package to demonstrate the accuracy and feasibility of the proposed .

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