With the development of the complexity of modern power system,its control and operation are facing great challenges compared to the conventional power system. Coordinated control of parallel functional units in modern power system should be satisfied. Meanwhile," plug - and - play" should be achieved for each unit. Hence,the flexible operation and modular design should be realized in modern smart grid. In order to fulfill the above - mentioned requirements,the integrated design and implementation for modern smart grid is presented. Firstly,as viewed from the coordinated control of different modular functional units,the impedance matching is taken as the criterion. Secondly,as viewed from the interaction between the local inverter and external utility grid,the estimation method for grid impedance is proposed. Theoretical analysis is carried out,and then the simulation model composed of multiple parallel inverters is established with Matlab /Simulink,which is implemented to verify the effectiveness of the proposed method.
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王珂涛,廖兵.一体化智能电网中模块化功能单元的设计与实现[J].四川电力技术,2017,40(6):39-43+57. Wang Ketao, Liao Bing. Integrated Design and Implementation of Modular Functional Units in Smart Grid[J]. SICHUAN ELECTRIC POWER TECHNOLOGY,2017,40(6):39-43+57.