Virtual power plant multi-objective optimization scheduling method considering output external characteristics

A multi-objective optimization and virtual power plant technology, which is applied in the field of virtual power plant optimal dispatching, can solve problems such as insufficient output characteristics, insufficient comprehensiveness and depth, and failure to consider the output characteristics of virtual power plants.

Inactive Publication Date: 2021-01-15
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Problems solved by technology

[0003] As a way of aggregating distributed power sources, the virtual power plant’s output characteristics are based on the output characteristics of traditional power plants. The dual characteristics of power source and load; there are many other existing literatures that have established the optimal dispatching model of virtual power plants based on wind, wind and storage, and discussed the management structure, interaction mechanism and key technologies of virtual power plants; however, the above existing literatures have not considered Considering the external output characteristics of the vi

Method used

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  • Virtual power plant multi-objective optimization scheduling method considering output external characteristics
  • Virtual power plant multi-objective optimization scheduling method considering output external characteristics
  • Virtual power plant multi-objective optimization scheduling method considering output external characteristics

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Embodiment 1

[0081] The operating parameters of the virtual power plant are shown in Table 1. The electricity price of the main network and electric vehicles adopts the time-of-use electricity price, and the time division of the electricity price is shown in Table 2 and Table 3. Energy storage equipment and electric vehicles satisfy the periodic invariance principle, that is, the stored electricity can still return to the initial value after running a scheduling cycle; λ WP and lambda PV Both take 5%; after calculation, the weights of the three objective functions are 0.327, 0.325, 0.347 respectively.

[0082] Table 1 Operating parameters of the virtual power plant

[0083]

[0084] Table 2 Main network time-of-use electricity price

[0085]

[0086] Table 3 Time-of-use electricity prices for electric vehicles connected to the grid

[0087]

[0088] The predicted value of wind power and photovoltaic output in a typical day is as follows: figure 1 As shown, there is no light a...

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Abstract

The invention relates to a virtual power plant multi-objective optimization scheduling method considering output external characteristics. The method comprises the following steps: 1) defining the output external characteristics of a virtual power plant; 2) aggregating a plurality of distributed power supplies to construct a virtual power plant main body; 3) establishing a virtual power plant multi-objective optimization scheduling model by taking the optimized virtual power plant output external characteristics, the maximized virtual power plant operation income and the minimized virtual power plant carbon emission as scheduling objective functions; and 4) converting multiple objectives in the virtual power plant multi-objective optimization scheduling model into single objectives, linearizing nonlinear conditions, and solving by adopting a mixed integer linear programming method to obtain scheduling statistical information including a wind power photovoltaic output condition, charging and discharging time and power of energy storage equipment, and charging and discharging time and power of an electric motor car. Compared with the prior art, the method has the advantages of rapidness, reliability, high feasibility, wide application range and the like.

Description

technical field [0001] The invention relates to the field of optimal dispatching of virtual power plants, in particular to a multi-objective optimal dispatching method of virtual power plants considering external characteristics of output. Background technique [0002] A virtual power plant is a special type of power plant composed of different types of distributed energy sources. It is also a comprehensive energy management system. The virtual power plant uses advanced communication technology and software Distributed energy sources such as automobiles are aggregated and participate in the operation of the power market and power system. The virtual power plant manages and integrates different types of energy generation within its jurisdiction, and has similar dispatchability and controllability to traditional power plants. Therefore, how to construct a virtual power plant with similar output characteristics of traditional power plants. received widespread attention. [00...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/46H02J3/32H02J3/14G06F30/20G06F111/04G06F111/06
CPCH02J3/008H02J3/004H02J3/466H02J3/32H02J3/144G06F30/20H02J2203/20H02J2300/24H02J2300/28H02J2300/40G06F2111/04G06F2111/06Y02B70/3225Y02T90/167Y04S30/12Y04S20/222Y04S30/14Y02E10/56Y02E10/76Y02E70/30
Inventor 陈凯玲顾闻王海群费斐杨建林吕冉史松峰符杨葛晓琳王云鹏
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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