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A New Filter Collaborative State Transition Algorithm for Two-Objective Dynamic Reactive Power Optimization

Tsinghua Science and Technology 2019年第1期24卷 30-43页

作者： Hongli Zhang Cong Wang Wenhui Fan the School of ElectricalEngineering Xinjiang University the Department of Automation Tsinghua University

Dynamic Reactive Power Optimization(DRPO) is a large-scale, multi-period, and strongly coupled nonlinear mixed-integer programming problem that is difficult to solve directly. First, to handle discrete variables and switching operation constraints, DRPO is formulated as a nonlinear constrained two-objective optimization problem in this paper. The first objective is to minimize the real power loss and the Total Voltage Deviations(TVDs), and the second objective is to minimize incremental system loss. Then a Filter Collaborative State Transition Algorithm(FCSTA) is presented for solving DRPO problems. Two populations corresponding to two different objectives are employed. Moreover, the filter technique is utilized to deal with constraints. Finally, the effectiveness of the proposed method is demonstrated through the results obtained for a 24-hour test on Ward & Hale 6 bus, ieee 14 bus, and ieee 30 bus test power systems. To substantiate the effectiveness of the proposed algorithms, the obtained results are compared with different approaches in the literature.

关键词： dynamic reactive power optimization filter collaborative state transition algorithm Ward & Hale 6 bus ieee 14 bus ieee 30 bus

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Impact evaluation of large scale integration of electric vehicles on power grid

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Frontiers in Energy 2020年第2期14卷 337-346页

作者： Rabah BOUDINA Jie WANG Mohamed BENBOUZID Farid KHOUCHA Mohamed BOUDOUR Department of Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China University of Brest FRE CNRS 3744 IRDLBrest 29238France Shanghai Maritime University Shanghai 201306China Ecole Militaire Poly technique UER ELTAlgiers 16111Algeria Laboratory of Electric Industrial System(LSEI) University of Science and TechnologyHouari BoumedienneAlgiers 16111Algeria

As the world witnesses a continual increase in the global energy demand,the task of meeting this demand is becoming more difficult due to the limitation in fuel resources as well as the greenhouse gases emitted which accelerate the climate *** a result,introducing a policy that promotes renewable energy(RE)generation and integration is inevitable for sustainable *** this endeavor,electrification of the transport sector rises as key point in reducing the accelerating environment degradation,by the deployment of new type of vehicles referred to as PHEV(plug-in hybrid electric vehicle).Besides being able to use two kinds of drives(the conventional internal combustion engine and the electric one)to increase the total efficiency,they come with a grid connection and interaction capability known as the vehicle-to-grid(V2G)that can play a supporting role for the whole power system by providing many ancillary services such as energy storage mean and power quality ***,all these advantages do not come *** uncontrolled large scale EV integration may present a real challenge and source of possible failure and instability for the *** this work the large scale integration impact of EVs will be investigated in *** results of power flow analysis and the dynamic response of the grid parameters variation are presented,taking the ieee 14 bus system as a test grid system.

关键词： PHEV vehicle-to-grid(V2G) technical impact ieee 14 bus power flow analysis

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