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research-article

RESEARCH ON CONTROL STRATEGY OF INTEGRATED GASIFICATION HUMID AIR TURBINE CYCLE

[+] Author and Article Information
Tingting Wei

Gas Turbine Research Institute, Shanghai Jiao Tong University, Shanghai, P.R.China
wei-tt@sjtu.edu.cn

Dengji Zhou

Gas Turbine Research Institute, Shanghai Jiao Tong University, Shanghai, P.R.China
zhoudj@sjtu.edu.cn

Di Huang

State Grid Jiangsu Electric, Power Research Institute, Nanjing, P.R.China
andy_r1@msn.com

Shixi Ma

Gas Turbine Research Institute, Shanghai Jiao Tong University, Shanghai, P.R.China
mashixi@126.com

Wang Xiao

Technical service center, PetroChina West Pipeline Company, Urumchi, P.R.China
xbgdxiaow@petrochina.com.cn

Huisheng Zhang

Gas Turbine Research Institute, Shanghai Jiao Tong University, Shanghai, P.R.China
zhslm@sjtu.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4040181 History: Received February 12, 2018; Revised April 20, 2018

Abstract

IGHAT cycle is an advanced power generation system, combining gasification technology and HAT cycle. It draws great attention in the energy field considering its high specific power, high efficiency and low emission. There are only a few HAT cycle plants and IGHAT cycle is still on the theory research stage. Therefore, the study on control strategies of IGHAT cycle has great significance in the future development of this system. A design method of control strategy is proposed for the unknown gas turbine systems. The control strategy design is summarized after IGHAT control strategy and logic is designed based on the dynamic simulation results and the operation experience of gas turbine power station preliminarily. Then, control logic is configured and a virtual control system of IGHAT cycle is established on the Ovation distribution control platform. The model-in-loop control platform is eventually set up based on the interaction between the simulation model and the control system. A case study is implemented on this model-in-loop control platform to demonstrate its feasibility in the practical industry control system. The power in IGHAT cycle is increased by 24.12% and 32.47% respectively, compared to the ones in the simple cycle and the regenerative cycle. And the efficiency of IGHAT cycle is 1.699% higher than that of the regenerative cycle. Low component efficiency caused by off-design performance and low humidity caused by high pressure are the main limits for system performance.

Copyright (c) 2018 by ASME
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