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Regional power grid electric vehicle peak regulation optimization scheduling method based on two stages

A technology for optimizing dispatching and regional power grids, applied to electric vehicles, electric vehicle charging technology, charging stations, etc., can solve the problem of the peak-valley difference of equivalent load and the increase of peak-shaving pressure, EV has no mature pricing strategy, and EV participates in peak-shaving Problems such as low enthusiasm, to achieve the effect of reducing load peak-valley difference, improving consumption level, and enhancing enthusiasm

Pending Publication Date: 2021-12-10
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0003] In order to solve the problems that the peak-to-valley difference of the equivalent load of the power system and the peak-shaving pressure gradually increase, there is no mature pricing strategy for EV participation in peak-shaving, and the enthusiasm of EVs to participate in peak-shaving is not high, the present invention provides a two-stage based area Optimal scheduling method for electric vehicle peak shaving in power grid

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  • Regional power grid electric vehicle peak regulation optimization scheduling method based on two stages
  • Regional power grid electric vehicle peak regulation optimization scheduling method based on two stages
  • Regional power grid electric vehicle peak regulation optimization scheduling method based on two stages

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Embodiment Construction

[0099] The present invention will be further described below in conjunction with specific examples.

[0100] The regional power grid system in this embodiment includes 5 thermal power units, and the specific parameters are shown in Table 1; 16 wind farms with a capacity of 80 MW, and a photovoltaic power plant with a capacity of 50 MW; the electric vehicle aggregator buys electricity from the large power grid at the following prices: The electricity price during valley hours is 0.35 yuan / kWh (00:00-7:00), the electricity price during normal hours is 0.68 yuan / kWh (8:00-10:00, 16:00-18:00, 22:00-24:00) and The electricity price during peak hours is 1.18 yuan / kWh (11:00-15:00, 19:00-21:00); the parameters of the power station are shown in Table 2; there are three types of government incentives, demand relationships, and competition between EV loads and thermal power units The weights of the factors are shown in Table 3. There are 11,000 EVs in the regional grid, including 5,000...

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Abstract

The invention discloses a regional power grid electric vehicle peak regulation optimization scheduling method based on two stages, and relates to the field of regional intelligent power grids. According to the scheduling method, the method includes performing classification according to electric vehicle (EV) load operation characteristics, and building four EV load models of rigid, schedulable, flexible and intelligent battery replacement respectively; giving an EV peak regulation pricing strategy on the basis of a fuzzy analytic hierarchy process (FAHP) by considering various costs of EV participating in peak regulation; in the first stage, taking the minimum load peak-valley difference as a target, and performing decision making on EV peak regulation pricing under the target, so that the peak regulation capacity of a power system is reduced, and regional power grid load distribution is adjusted; and in the second stage, depending on the peak regulation pricing curve obtained in the first stage, arranging the EV load by taking the minimum charging cost of the EV user as a target. Compared with a mainstream scheduling strategy, the peak regulation pressure of a regional power grid can be more effectively relieved, the cost is reduced, the load peak-valley difference is reduced, and the wind power photovoltaic consumption level is improved.

Description

technical field [0001] The invention relates to the field of regional smart grids, in particular to a two-stage peak-shaving optimization scheduling method for electric vehicles in regional grids. Background technique [0002] With the proposal of the "Double Carbon Target" and the large-scale grid integration of new energy sources, the development of the power system is facing enormous challenges. At present, the power supply situation in many places in my country is tense, the peak-to-valley difference of the equivalent load of the power system is gradually increasing, and the pressure on peak regulation is also increasing. As a new type of load, EV is schedulable and flexible. It can not only transfer EV load to the low period of the system, realize peak shaving and fill valley, but also enhance the peak shaving capability of the system through EV feed. It is of great significance to guide EV charging and discharging to participate in system peak shaving through reasonab...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q30/02G06Q50/06H02J3/24H02J3/32H02J3/38B60L53/64
CPCG06Q10/04G06Q10/0637G06Q30/0206G06Q50/06B60L53/64H02J3/322H02J3/38H02J3/24H02J2300/24H02J2300/28Y02E10/56Y02E10/76Y02E70/30Y02B10/10Y02T10/70Y02T10/7072Y02T90/12Y04S50/14
Inventor 秦文萍杨镜司姚宏民景祥张宇朱志龙黄倩李晓舟
Owner TAIYUAN UNIV OF TECH
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