RESEARCH ON LOAD DISTRIBUTION OF THERMAL POWER UNIT BASED ON BRANCH-BOUND METHOD

Hu Zunmin; Liu Ketian; Yu Guoqiang; Shi Yiyue; Tang Keyi

doi:10.19912/j.0254-0096.tynxb.2021-0706

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (12) : 282-288. DOI: 10.19912/j.0254-0096.tynxb.2021-0706

RESEARCH ON LOAD DISTRIBUTION OF THERMAL POWER UNIT BASED ON BRANCH-BOUND METHOD

Hu Zunmin¹, Liu Ketian², Yu Guoqiang¹, Shi Yiyue¹, Tang Keyi¹

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Abstract

Aiming at the peak load regulation problem of large-scale new energy grid-connected, a load distribution methods for thermal power units in different peak load regulation stages is proposed. The capacity and cost of peak load regulation of thermal power units are analyzed and the relationship between they is studied. With the goal of minimizing the total cost of coal consumption and the unit start-stop costs, an optimization model for load distribution of thermal power units in different peak load regulation stages is established. According to the ramp rate and landslide rate of thermal power units, a combination strategy of units participating in load distribution is proposed, and the branch-bound method is used to solve the load distribution optimization model. The example shows that as the peak load regulation depth of thermal power units increases, unit coal consumption cost and start-stop cost will decrease, and additional coal consumption cost and unit loss costs under deep peak load regulation will increase.

Key words

wind power / load distribution / thermal power / branch-bound method / peak load regulation / unit loss costs

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Hu Zunmin, Liu Ketian, Yu Guoqiang, Shi Yiyue, Tang Keyi. RESEARCH ON LOAD DISTRIBUTION OF THERMAL POWER UNIT BASED ON BRANCH-BOUND METHOD[J]. Acta Energiae Solaris Sinica. 2022, 43(12): 282-288 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0706

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