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Stair-like dynamic matrix control for main steam temperature system based on improved equivalent input disturbance observer
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Meiyan SONG1, Liang ZHAO1, Bin WANG1, Hongjun CHEN2, Yanchu WANG2
Thermal Power Generation | 2023, 52(4) : 113 - 120
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Thermal Power Generation | 2023, 52(4): 113-120
• Thermal energy and science research •
Stair-like dynamic matrix control for main steam temperature system based on improved equivalent input disturbance observer
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Meiyan SONG1, Liang ZHAO1, Bin WANG1, Hongjun CHEN2, Yanchu WANG2
Affiliations
  • 1.Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China
  • 2.Nanjing Nanrui Jibao Electric Co., Ltd., Nanjing 211002, China
Published: 2023-04-25 doi: 10.19666/j.rlfd.202211189
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Control of main steam temperature (MST) is becoming more and more challenging because of unknown disturbances caused by frequent and extensive load changes and strict control requirements for the efficiency and safety. To this end, considering the sluggish responses to the disturbances caused by high order dynamics, an anti-disturbance control scheme with stair-like dynamic matrix control (SDMC) algorithm as the core is proposed to solve fundamentally the control problem of large delay, big inertia and multiple disturbances in MST. This study aims to provide technical support for the clean and efficient use of coal and the large-scale consumption of renewable energy sources in China. A simulation example shows that the proposed improved equivalent input disturbance observer (IEIDO) can realize real-time estimation and compensation of disturbances, while SDMC can not only ensure the rapidity and stability of the steam temperature control system, but also achieve disturbance suppression according to the introduction of measured disturbance feed-forward compensation technology. Therefore, the proposed scheme can guarantee the safety, stability, economy and flexibility of the unit operation, which has a promising application future in power industry.

predictive control  /  main steam temperature control  /  stair-like dynamic matrix  /  equivalent input disturbance observer
Meiyan SONG, Liang ZHAO, Bin WANG, Hongjun CHEN, Yanchu WANG. Stair-like dynamic matrix control for main steam temperature system based on improved equivalent input disturbance observer[J]. Thermal Power Generation, 2023 , 52 (4) : 113 -120 . DOI: 10.19666/j.rlfd.202211189
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  • Science and Technology Project of China Huaneng Group Co., Ltd.(HNKJ 20-H39)
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Year 2023 volume 52 Issue 4
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Article Info
doi: 10.19666/j.rlfd.202211189
  • Receive Date：2022-11-29
  • Online Date：2026-01-23
  • Published：2023-04-25
Article Data
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History
  • Received：2022-11-29
Funding
Science and Technology Project of China Huaneng Group Co., Ltd.(HNKJ 20-H39)
Affiliations
    1.Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China
    2.Nanjing Nanrui Jibao Electric Co., Ltd., Nanjing 211002, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202211189
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