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Optimization method for peak regulation type virtual power plant, and terminal

A technology of a virtual power plant and an optimization method, applied in the electric power field, can solve the problems of high peak shaving cost and inflexible peak shaving capability, and achieve the effect of reducing the peak shaving cost.

Active Publication Date: 2021-06-04
STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY +2
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  • Claims
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Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides an optimization method and terminal for a peak-shaving virtual power plant to solve the problems of inflexible peak-shaving capability and high peak-shaving cost of the existing peak-shaving virtual power plant

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  • Optimization method for peak regulation type virtual power plant, and terminal
  • Optimization method for peak regulation type virtual power plant, and terminal
  • Optimization method for peak regulation type virtual power plant, and terminal

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Embodiment approach

[0068] Optionally, as a specific implementation of the peak-shaving virtual power plant optimization method provided in the embodiment of the present invention, the heat storage constraint of electric heating equipment is:

[0069] Q W.min ≤Q W.i (t)≤Q W.max

[0070] In the formula, Q W.i (t) is the electric heating heat storage capacity of the i-th heating power user in the t period, Q W.min is the minimum heat storage capacity of electric heating equipment, Q W.max It is the maximum heat storage capacity for electric heating equipment.

[0071] Optionally, as a specific implementation of the peak-shaving virtual power plant optimization method provided in the embodiment of the present invention, the operating constraints of thermal power units include output limit constraints of thermal power units, deep peak-shaving output constraints of thermal power units, and ramp-up of thermal power units. constraint. in,

[0072] The output limit constraints of thermal power un...

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Abstract

The invention is applicable to the technical field of electric power, and provides an optimization method of a peak regulation type virtual power plant. The method comprises the following steps of: constructing a target function by taking the minimum wind power delivery cost of a regional power grid in a preset time period as a target; constructing constraint conditions of the target function, wherein the constraint conditions comprise a virtual power plant power balance constraint, a thermal power balance constraint, an electric heating equipment heat storage capacity constraint and a thermal power generating unit operation constraint; solving the target function to obtain virtual power plant regulation and control power, thermal power generating unit output power and wind power output power corresponding to the minimum wind power delivery cost; and optimizing the peak regulation type virtual power plant according to the virtual power plant regulation and control power, the thermal power generating unit output power and the wind power output power. According to the method, the problems that the peak regulation capacity of an existing peak regulation type virtual power plant is not flexible enough and the peak regulation cost is high can be solved.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to an optimization method and a terminal of a peak-shaving virtual power plant. Background technique [0002] With the construction and commissioning of many new energy transmission channels in my country, the power transmission capacity of wind power-rich areas will be further improved, making the above-mentioned areas a typical wind power "outward transmission" regional power grid. [0003] However, due to the randomness and intermittent characteristics of wind power, the peak-to-valley difference of the power sent out by the regional power grid is large and highly volatile, which brings risks to the safe and stable operation of the receiving power grid. At present, it is a better solution to use the virtual power plant technology to regulate the peak of the regional power grid. However, the inventors of the present application found that the existing peak-shav...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38H02J3/46H02J3/14
CPCH02J3/00H02J3/381H02J3/466H02J3/144H02J2203/20H02J2300/20H02J2300/28Y04S20/222Y02E10/76Y02B70/3225
Inventor 王宏田石刚魏晓强张轶平刘扬祁峰徐洪涛李兵贾清泉王珺孙玲玲
Owner STATE GRID HEILONGJIANG ELECTRIC POWER COMPANY
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