Thermal and Electric Load Coupling Analysis and Decoupling Coordinated Control in Heat Supply Units

Authors

Tuoyu Deng, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University, Beijing 102206, China;
Tian Liang, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University, Beijing 102206, China;
Jizhen Liu, State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University, Beijing 102206, China;

Abstract

Abstract: Due to large scale wind power integration, heat supply units hardly meet the AGC (automatic generation control) requirement by the existed coordinated control system. It is necessary to analyze coupling characteristics of thermal and electric load thoroughly. A transfer function matrix including characteristics of heat supply part was gained by small deviation linearization of a dynamic unit's model. Coupling characteristics was analyzed based on variable pairings of the existed coordinated control system and decouplers were designed. Relative gain matrix measure and simulation were used to compare the coupling extent before and after decoupling. Simulation experiments show that adding static decouplers to basic boiler-following control scheme can decrease the power load disturbances effectively which are caused by thermal variation.

Recommended Citation

Deng, Tuoyu; Liang, Tian; and Liu, Jizhen (2020) "Thermal and Electric Load Coupling Analysis and Decoupling Coordinated Control in Heat Supply Units," Journal of System Simulation: Vol. 29: Iss. 10, Article 46.
DOI: 10.16182/j.issn1004731x.joss.201710046
Available at: https://dc-china-simulation.researchcommons.org/journal/vol29/iss10/46

First Page

2593

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201710046

Last Page

2599

CLC

TP273

Recommended Citation

Deng Tuoyu, Tian Liang, Liu Jizhen. Thermal and Electric Load Coupling Analysis and Decoupling Coordinated Control in Heat Supply Units[J]. Journal of System Simulation, 2017, 29(10): 2593-2599.

DOI

10.16182/j.issn1004731x.joss.201710046