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Two-stage dispatching method considering charging cost of electric vehicle participating in voltage regulation

A technology for electric vehicles and scheduling methods, applied in circuit devices, combustion engines, AC network circuits, etc., can solve problems such as lack of guiding significance in practical applications, and achieve the goal of improving autonomy and participation, ensuring economic benefits, and reducing active power losses. Effect

Active Publication Date: 2018-09-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the current research lacks effective guidance for practical application

Method used

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  • Two-stage dispatching method considering charging cost of electric vehicle participating in voltage regulation
  • Two-stage dispatching method considering charging cost of electric vehicle participating in voltage regulation
  • Two-stage dispatching method considering charging cost of electric vehicle participating in voltage regulation

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Embodiment

[0054] In this embodiment, the topological structure of distribution network in a residential area is as follows figure 1 As shown in , it contains a radial structure of 18 nodes and 17 busbars, each node represents a house, and each house has an electric vehicle.

[0055] Such as figure 2 As shown, the scheduling framework of the two-level scheduling of the local control unit and the grid control center proposed by the present invention, the scheduling method is composed of a two-level scheduling process of the local control unit and the grid control center, each electric vehicle corresponds to a local control unit, and the local control The unit takes the minimization of the charging cost of electric vehicles as the goal, and takes the charging demand of electric vehicles, the operation mode and the apparent power of the charger as constraints, establishes an optimization model, and obtains the minimum charging cost of electric vehicles; the grid control center takes the gr...

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Abstract

The invention discloses a two-stage dispatching method considering charging cost of an electric vehicle participating in voltage regulation. According to the two-stage dispatching method, an optimization model of a local control unit is built through taking power constraint, electric vehicle charging demand and an operation mode as constraint conditions by a charger during first-stage dispatchingand by taking minimum user charging cost as a target function, the minimum charging cost is obtained by model solution, the constraint condition of the electric vehicle charging cost is built on the basis and is submitted to a power grid control center, the power grid control center is used for building an optimization dispatching model of the local control unit by taking the electric vehicle charging cost and running capacitor of a substation as constraint conditions and active power loss and minimum voltage deviation of a power distribution network as target functions, the optimal dispatching instruction of the local control unit is obtained by model solution and is transmitted to the local control unit, and the two-stage dispatching process of the electric vehicle is completed.

Description

technical field [0001] The invention belongs to the technical field of grid dispatching and electric vehicle grid connection, and more specifically relates to a two-stage dispatching method in which electric vehicles participate in voltage regulation considering charging costs. Background technique [0002] Currently, as environmental pollution, shortage of fossil fuels, and increasing energy costs are becoming more and more serious, electric vehicles, as a substitute for traditional internal combustion engine vehicles, are considered to be an effective solution to the above problems. Due to the characteristics of electric vehicles such as cleanliness, environmental protection, and high efficiency, with the maturity of electric vehicle technology, more and more electric vehicles have entered the market, occupying more and more market shares. If a large number of electric vehicles are allowed to charge disorderly, it will inevitably have an adverse impact on the power grid, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/48H02J3/40
CPCH02J3/32H02J3/48H02J3/50H02J2203/20Y02T10/40
Inventor 邹见效吴春燕李立英李明伟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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