Behavior Strategy of Coal-Fired Units under Different New Energy Penetration Rate

doi:10.12204/j.issn.1000-7229.2022.05.002

Abstract

Abstract:

This paper constructs a master-slave game model with embedded non-cooperation and cooperation game to explore the impact of coal-fired power unit decision-making on the economic efficiency and carbon emissions from a system perspective under different proportion of new energy penetration. The model takes into account the technical characteristics of coal-fired units to accurately account for the total emissions of coal-fired units in different operating conditions. The results show that, when the new energy penetration rate is low, the cooperation strategy among coal-fired power units has good performance in both economic and environmental benefits. With the increase of new energy penetration, the cooperation strategy among coal-fired power units is still helpful for carbon reduction, but the overall economy will decrease. When the level of new energy penetration is high, the non-cooperative strategy can enhance both economic and carbon reduction effects. Some valuable policy implications are proposed according to the research findings.

Key words: new energy, hybrid game, coal-fired unit, behavior strategy, electricity market

CLC Number:

TM611

ZHANG Xingping, HE Shu, WANG Zejia, ZHANG Haonan, ZHANG Youzhong. Behavior Strategy of Coal-Fired Units under Different New Energy Penetration Rate[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(5): 9-17.

Figures/Tables 9

Fig.1 Overall framework of the hybrid game model

Fig.2 Curve of coal consumption rate for power supply of typical units

Fig.3 Solution process of the proposed model

Table 1 Specific parameters of each thermal power unit

Fig.4 Typical daily load curve

Table 2 Clearance results under different scenarios

Table 3 Unit operating status under different scenarios

Fig.5 Electricity distribution in the electricity market

Fig.6 Electricity distribution in the reserve auxiliary service market

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