Frequency modulation instruction scheduling method considering energy storage power station life attenuation and capacity balance bidding

A technology for energy storage power stations and command scheduling, applied in computing, instruments, data processing applications, etc.

Active Publication Date: 2019-09-06
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention solves the problem of scheduling and allocating AGC commands when the energy storage power station participates in the frequency regulation process of the power system

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  • Frequency modulation instruction scheduling method considering energy storage power station life attenuation and capacity balance bidding
  • Frequency modulation instruction scheduling method considering energy storage power station life attenuation and capacity balance bidding
  • Frequency modulation instruction scheduling method considering energy storage power station life attenuation and capacity balance bidding

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Embodiment Construction

[0017] A method for dispatching frequency regulation commands considering life attenuation and capacity balance bidding of energy storage power stations, comprising the following steps:

[0018] S1: Establish a cost model for frequency regulation life attenuation of energy storage power stations. The life of an energy storage power station is greatly affected by its operation mode. Applying it to frequency modulation conditions that require frequent output adjustments may damage the life of the battery and even shorten its service life. If this factor is not considered in the scope of control decision-making, it may lead to an over-evaluation of the economics of energy storage, which is not conducive to its planned cost recovery and profitability. Therefore, the depreciation cost of energy storage station i is expressed as the dynamic capacity cost and dynamic mileage cost of its bidding capacity, as shown in formula (1)

[0019]

[0020] In the formula: and They are t...

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Abstract

The invention relates to an energy storage power station frequency modulation power scheduling and distributing method participating in power grid frequency modulation, in particular to a frequency modulation instruction scheduling method considering energy storage power station life attenuation and capacity balance bidding. The invention provides a frequency modulation instruction scheduling anddistributing strategy considering energy storage power station life attenuation and capacity balance bidding, capable of combining the clearing price involved in the auxiliary service market with thescheduling strategy to realize scheduling according to the cost of each frequency modulation resource in the scheduling process. The frequency modulation instruction scheduling and distributing methodcan reduce the total operation cost of each energy storage power station undertaking the AGC instruction, is beneficial to balancing the SOC state of each power station in the auxiliary service market, can prolong the operation time of each power station, can help the power station to clarify the dynamic cost of the power station participating in frequency modulation, and can stimulate the powerstation to fairly and reasonably participate in the frequency modulation auxiliary service market by a marketization method.

Description

technical field [0001] The invention relates to a frequency modulation power dispatching method for an energy storage power station that participates in power grid frequency modulation, specifically a frequency modulation instruction dispatching method that takes into account energy storage power station life attenuation and capacity balance bidding. The method includes establishing an energy storage power station in the frequency modulation auxiliary service market The life attenuation model of the power station introduces the bidding method of the capacity equalization factor, and designs the scheduling strategy for participating in the automatic generation control (AGC) command. [0002] technical background [0003] Renewable energy represented by wind power and photovoltaics has the characteristics of low inertia and high randomness, and large-scale grid-connected operation will bring huge pressure to the frequency stability of the grid. Especially when the power grid wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q50/06
Inventor 贾燕冰陈浩郑晋肖莹韩肖清秦文萍
Owner TAIYUAN UNIV OF TECH
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