Optimized scheduling method considering load aggregator (LA) and electric vehicle (EV) response reliability

A load aggregator and electric vehicle technology, applied in the field of smart grid, can solve problems such as reducing user enthusiasm

Inactive Publication Date: 2017-10-13
CHONGQING UNIV
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  • Claims
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Problems solved by technology

However, the penalty for breach of contract reduces the enthusiasm of users to a certain extent, and the incentive reward does not remove electric vehicles with high response uncertainty from the dispatch plan, which brings dispatch risks

Method used

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  • Optimized scheduling method considering load aggregator (LA) and electric vehicle (EV) response reliability
  • Optimized scheduling method considering load aggregator (LA) and electric vehicle (EV) response reliability
  • Optimized scheduling method considering load aggregator (LA) and electric vehicle (EV) response reliability

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Embodiment Construction

[0065] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0066] The electric energy Q of the time series changes of each node in the known space E , to make further optimization on the time scale under each node, the grid operator considers to formulate a reasonable real-time charge and discharge electricity price, guide EV (electric vehicle) user charge and discharge and LA (load aggregator) demand response at each time period, and realize the reduction Filling peaks and valleys and ensuring the stability of power grid operation; EV users and LAs consider when to charge and discharge and demand response respectively to maximize their own economic benefits.

[0067] 1 Determination of charge and discharge electricity price boundary value

[0068] In view of the current electricity market mechanism in my country, both EV and LA are equivalent to the grid load, so charging electricity price C ch,...

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Abstract

The invention relates to an optimized scheduling method considering LA and the EV response reliability, and belongs to the field of smart power grid. A marginal discharge cost of an EV and a power generation cost of a power supply side are calculated, and upper and lower boundaries of the discharging electricity price are determined; a consumer psychological principle is introduced to represent the uncertainty of response to the electricity price of EV users; a discharging electricity pricing strategy considering the LA and EV response reliability is made; an LA and EV optimized scheduling model based on the time-space charging / discharging electricity price is established by taking reducing network loss and operation cost of the power grid and maximizing economical benefit in the user side as targets; and a node EV charging / discharging electricity price, the EV charging / discharging condition, the LA response condition and the system scheduling plan are output. The discharging electricity price of the EV and the interruptible compensation electricity price of an LA can be made effectively according to the reliability of response to the system scheduling strategy, and a corresponding scheduling response plan is made.

Description

technical field [0001] The invention belongs to the field of smart grids, and relates to an optimal scheduling method considering load aggregators and electric vehicle response reliability. Background technique [0002] At present, there have been many research results on the charging and discharging of electric vehicles at home and abroad. Luo X et al. established a charging urgency index for a single electric vehicle, and further analyzed the automatic response strategy of electric vehicle charging and discharging power under the condition of virtual public electricity price, so as to realize frequency regulation and smooth power fluctuations caused by wind power access to the grid. Flath C M et al. pointed out that real-time electricity prices in time, node electricity prices in space, and regional electricity prices can play a good guiding role in electric vehicles, achieving voltage balance, peak shaving, and valley filling. Pan Zhanghui et al. From the perspective of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q30/02G06Q50/06
CPCG06Q10/04G06Q30/0278G06Q30/0283G06Q50/06Y04S50/16
Inventor 李春燕张谦付志红张淮清王东张鹏
Owner CHONGQING UNIV
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