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A Two-Level Scheduling Method for Electric Vehicles Participating in Voltage Regulation Considering Charging Cost

A technology of electric vehicles and dispatching methods, applied in the direction of circuit devices, combustion engines, AC network circuits, etc., can solve the problems of lack of guiding significance in practical applications, and achieve the goals of improving autonomy and participation, ensuring economic benefits, and reducing active power loss Effect

Active Publication Date: 2021-03-30
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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  • A Two-Level Scheduling Method for Electric Vehicles Participating in Voltage Regulation Considering Charging Cost
  • A Two-Level Scheduling Method for Electric Vehicles Participating in Voltage Regulation Considering Charging Cost
  • A Two-Level Scheduling Method for Electric Vehicles Participating in Voltage Regulation Considering Charging Cost

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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-level scheduling method for electric vehicles participating in voltage regulation considering the charging cost. The scheduling at the first level meets the constraints of the charger's apparent power constraints, the charging requirements of electric vehicles, and the operating mode. Minimize the objective function, establish the optimization model of the local control unit, obtain the minimum charging cost by solving the model, and establish the constraint conditions of the charging cost of electric vehicles on this basis, and then submit it to the grid control center; The vehicle charging cost and substation operating capacity are constrained conditions, and the distribution network active loss and voltage deviation minimization is used as the objective function. An optimal scheduling model for the local control unit is established. The scheduling instructions are then sent to the local control unit to complete the two-level scheduling process for electric vehicles.

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 Patents(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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