Monthly Combination Model of Thermal Power Units Considering Wind Power Absorption and Electricity Contract Decomposition

doi:10.3969/j.issn.1000-7229.2019.12.004

Abstract

Abstract: Reasonable monthly power unit commitment （UC） can further expand the space of wind power absorption in a longer time scale， but the strong uncertainty caused by large-scale wind power will bring great challenges to power unit commitment. In addition， because the implementation of monthly contract power dispatch based on proportional distribution method is difficult， this paper presents a monthly combined model of thermal power units which combines with improved monthly contract power decomposition method and the uncertainty of source and load. The historical data of wind power is applied to monthly unit commitment decision-making， and the data-driven distributed robust method combined with stochastic optimization technology is used to solve the unit commitment and power decomposition scheme. The calculation results show that the model can effectively reduce the amount of abandoned wind power and improve the load rate of thermal power units.

Key words: large-scale wind power absorption, contract power decomposition, monthly power unit commitment（UC）, distributed robust, economic dispatch

CLC Number:

TM 61

JIANG Lichao， LIU Yang， SHEN Xiaodong， YANG Junfeng， LI Min， ZHANG Hongtu， WANG Changhao. Monthly Combination Model of Thermal Power Units Considering Wind Power Absorption and Electricity Contract Decomposition[J]. Electric Power Construction, 2019, 40(12): 30-37.

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