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Optimal bidding method and system for wind storage joint participation in energy-frequency modulation market

A wind-storage combination and marketable technology, applied in the field of electric power market, can solve problems such as frequency modulation capacity and declared capacity discrepancy, accelerated aging of energy storage batteries, shortened life of energy storage batteries, etc.

Pending Publication Date: 2020-11-27
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, after wind power and energy storage are combined to participate in the frequency modulation service, not only the frequency modulation capacity does not match the declared capacity, but also the energy storage battery faces the risk of accelerated aging during the frequency modulation process of frequent charging and discharging, which shortens the life of the energy storage battery. The inventor It is proposed to aim at the optimal revenue of wind power and / or energy storage in different scenarios, and determine the capacity of different combinations of wind power and energy storage to participate in the energy market and frequency regulation market

Method used

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  • Optimal bidding method and system for wind storage joint participation in energy-frequency modulation market
  • Optimal bidding method and system for wind storage joint participation in energy-frequency modulation market
  • Optimal bidding method and system for wind storage joint participation in energy-frequency modulation market

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Embodiment 1

[0079] Embodiment 1: The embodiment of the present invention proposes a bidding method for wind storage to jointly participate in the energy market and frequency regulation market, including the revenue model of wind storage participating in the power market under four scenarios. The advantages and disadvantages of the two resources are fully considered, and the penalty cost and loss cost are introduced to make the impact of the characteristics of the two resources on the income concrete, and the corresponding objective function and constraint conditions are set according to the bidding model. The real-time capacity and net income are optimized, and finally, the validity and correctness of the model are verified. As a joint bidding scheme, this scheme effectively improves the frequency modulation performance of wind power without affecting the life of the energy storage battery, and reduces the loss cost of energy storage to a certain extent.

[0080] Such as figure 1 As show...

Embodiment 2

[0202] Embodiment 2: Based on the same inventive concept, the embodiment of the present invention also provides an optimal bidding system for wind-storage joint participation in the energy-frequency modulation market, including:

[0203] The obtaining module is used to obtain the predicted output and energy storage capacity of wind farms in each trading period, as well as the clearing prices of the energy market and frequency regulation market;

[0204] The result module is used to bring the predicted output and energy storage capacity of the wind farm in each trading period, as well as the clearing price of the energy market and the frequency regulation market into the pre-built electricity market bidding model for calculation, and obtain wind power and / or Or the capacity of energy storage to participate in each scenario;

[0205] Wherein, the scenarios include wind power participating in the energy market, energy storage participating in the energy market, wind storage joint...

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Abstract

The invention discloses an optimal bidding method and system for wind storage joint participation in an energy-frequency modulation market. The bidding method comprises the steps of obtaining predicted output and energy storage capacity of a wind power plant in each transaction time period, and clearing prices of the energy market and the frequency modulation market; substituting the predicted output and the energy storage capacity of the wind power plant in each transaction period and the clearing prices of the energy market and the frequency modulation market into a pre-constructed electricity market bidding model for calculation to obtain the capacity of wind power and / or energy storage participating in each scene; wherein the scene comprises a wind power participation energy market, anenergy storage participation energy market, a wind storage joint participation frequency modulation market and an energy storage participation frequency modulation market; wherein the electricity market bidding model is constructed by taking the optimal income when wind power and / or energy storage participates in each scene as a target. According to the invention, the frequency modulation performance of wind power is effectively improved, and the energy storage loss cost is reduced to a certain extent.

Description

technical field [0001] The invention relates to the field of electric power market, in particular to an optimal bidding method and system for joint participation of wind storage in the energy-frequency modulation market. Background technique [0002] As the penetration rate of renewable energy continues to increase, the demand for frequency regulation services in the power system is also increasing. In a power system with a high penetration rate of renewable energy, renewable energy, such as wind power, will inevitably undertake the frequency regulation service of some conventional generating units. When wind power participates in frequency modulation market transactions, the uncertainty of wind power output will reduce its frequency modulation service quality. Energy storage has great potential in the frequency modulation market due to its better frequency modulation accuracy and faster response speed, so energy storage can be very good To make up for the deficiencies of w...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q30/02G06Q30/08G06Q50/06
CPCG06Q10/04G06Q10/0637G06Q10/067G06Q30/0206G06Q30/08G06Q50/06Y04S50/10Y04S50/14
Inventor 刘鑫王智伟褚云龙韩华玲徐海超李征
Owner CHINA ELECTRIC POWER RES INST
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