Charging and discharging scheduling method for electric vehicles connected to micro-grid

A technology of electric vehicles and scheduling methods, which is applied in the direction of electric vehicle charging technology, electric vehicles, battery/fuel cell control devices, etc., and can solve the problems of not considering the charging and discharging depreciation costs of electric vehicle batteries, unfavorable battery economic management of electric vehicles, etc.

Active Publication Date: 2016-10-12
HEFEI UNIV OF TECH
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Problems solved by technology

[0004] In the existing optimal dispatching methods considering the connection of electric vehicles to the microgrid, the depreciation cost of charging and discharging the batteries of electric vehicles is often not considered, which is not conducive to the economic management of the batteries of electric vehicles; in real life, the connection of electric vehicles to the microgrid The time, state of

Method used

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  • Charging and discharging scheduling method for electric vehicles connected to micro-grid
  • Charging and discharging scheduling method for electric vehicles connected to micro-grid
  • Charging and discharging scheduling method for electric vehicles connected to micro-grid

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Embodiment Construction

[0080] In this embodiment, a charging and discharging scheduling method for connecting an electric vehicle to a microgrid includes the following steps:

[0081] Step 1. Determine the system structure of the microgrid and the characteristics of each unit;

[0082] Such as figure 1 Shown: The system structure of the microgrid includes: photovoltaic power generation unit (Photovoltaic, PV), wind power generation unit (Wind Turbine, WT), diesel generator (Diesel Generator, DG), micro gas turbine (MicroTurbine, MT), electric vehicle ( Electric Vehicle, EV);

[0083] Features of each unit include:

[0084] The output power P of the photovoltaic power generation unit PV PV , and obtained from formula (1):

[0085] P P V = P S T C G I N G ...

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Abstract

The invention discloses a charging and discharging scheduling method for electric vehicles connected to a micro-grid. The method comprises the steps of: (1) determining a system structure of the micro-grid and the characteristics of various units; (2) building a micro-grid optimal scheduling target function of considering the battery depreciation cost of the electric vehicles under time-sharing electrovalence; (3) determining constraints of various distributed power supplies, batteries of the electric vehicles and the like and forming a micro-grid optimal scheduling model by the constraints and the micro-grid optimal scheduling target function; (4) determining the number, the start-stop time, the start-stop charged states and other basic calculated data of the electric vehicles connected to the power grid under the time-sharing electrovalence; and (5) solving the micro-grid optimal scheduling model through a particle swarm algorithm and determining the charge and discharge power when the electric vehicles are connected to the power grid. The batteries of the electric vehicles are connected to the micro-grid as mobile distributed energy storage devices to achieve the peak load shifting effect; the operation safety and stability of the micro-grid in the time-sharing electrovalence environment are improved; and the energy utilization efficiency and the power grid operation efficiency are simultaneously improved.

Description

technical field [0001] The invention relates to the field of micro-grid dispatching, in particular to a charging and discharging dispatching method for an electric vehicle connected to a micro-grid. Background technique [0002] Microgrid refers to a small power distribution system composed of distributed power supply and energy storage system. It is an autonomous system capable of self-control, protection and management. An important part of the grid. The basic goal of micro-grid optimal scheduling is to reasonably and effectively arrange the output of each distributed power source and the interactive power with the distribution network according to a certain control strategy on the premise of meeting the load demand of the micro-grid system, so that the entire micro-grid The operation and maintenance cost and emission cost are the lowest. [0003] With the increasing development of human society, energy and environmental issues are becoming more and more prominent. In or...

Claims

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Application Information

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IPC IPC(8): H02J3/32H02J3/46
CPCH02J3/32H02J3/46B60L53/30B60L58/12G06Q10/06314G06Q50/06Y02E40/70Y02T10/70Y02T10/7072Y02T90/12Y04S10/50
Inventor 周开乐陆信辉杨善林陈雯王琛孙莉张弛邵臻
Owner HEFEI UNIV OF TECH
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