PID Parameter Tuning of Combined Heat and Power Generation Unit Based on Differential Evolution Algorithm

In view of the problem that the operation mode of "determining electricity by heat" of cogeneration units makes it difficult for the unit load change rate to meet the requirements of automatic generation control (AGC) instructions of the power grid, the unit operation parameters fluctuate...

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Bibliographic Details
Main Authors: Zhang, Jiangnan, Wu, Po, Wang, Xin, Yu, Xiangyang, Duan, Songtao
Format: Conference Proceeding
Language:English
Subjects:
Automatic generation control
Cogeneration
differential evolution algorithm
parameter optimization
Power grids
Power system stability
Renewable energy sources
Stability analysis
Steam extraction heating
Tuning
Online Access:Request full text
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Summary:In view of the problem that the operation mode of "determining electricity by heat" of cogeneration units makes it difficult for the unit load change rate to meet the requirements of automatic generation control (AGC) instructions of the power grid, the unit operation parameters fluctuate too much, and the traditional PID parameter setting efficiency is low, this paper takes 300MW cogeneration units as an example, takes the integral of time multiplied by the absolute value of error as the optimization objective function, and uses differential evolution algorithm to set the PID parameters. Through simulation, it is found that the differential evolution algorithm can improve the unit load change rate and maintain a relatively stable main steam pressure and heat source supply. Finally, the effectiveness of the differential evolution algorithm is verified by comparing with the PID feedback control before tuning.
ISSN:2768-0525
DOI:10.1109/ICPRE55555.2022.9960306