The Development and Application of the Key DCS Technologies for 1 000-MW Double Reheat Ultra-Supercritical Units

doi:10.11930/j.issn.1004-9649.2017.06.021.06

Electric Power ›› 2017, Vol. 50 ›› Issue (6): 21-26.DOI: 10.11930/j.issn.1004-9649.2017.06.021.06

• Double-Reheat Coal-Fired Power Generation Technology • Previous Articles Next Articles

The Development and Application of the Key DCS Technologies for 1 000-MW Double Reheat Ultra-Supercritical Units

HUANG Huanpao¹, YANG Guang², CUI Qingru³

1. Beijing Engineering Research Center of Power Station Automation, Beijing Guodian Zhishen Control Technology Co., Ltd., Beijing 102200, China;
2. Guodian Technology & Environment Group Corporation Ltd., Beijing 100039, China;
3. China Guodian Corporation, Beijing 100034, China

Received:2017-03-20 Online:2017-06-20 Published:2017-07-12
Supported by:
; This work is supported by the National Key Technology Support Program (No. 2012BAA12B00).

Abstract

Abstract: Based on the analysis of the difficulties in the control of double-reheat power generation units, the development of the key technologies of the distributed control system(DCS) for 1 000-MW double reheat ultra-supercritical(DRUSC) power generation units is presented, which involves the design and technical characteristics of DCS, the key control strategies and technologies for the coordinated control system, the steam temperature, the bypass system and the automatic plant startup and shutdown(APS). The application on the demonstration project shows that the performance of DCS is stable and reliable with the major indices meeting or better than the designed values. The whole-process automatic control from starting up to shutting down has been realized.

Key words: coal-fired power generation, 1 000 MW, ultra-supercritical unit, double reheat cycle, distributed control system (DCS), turbine-boiler coordinated control system (CCS), steam temperature control, three-stage bypass control, auto plant startup and shutdown (APS), demenstration power plant

CLC Number:

TM621

HUANG Huanpao, YANG Guang, CUI Qingru. The Development and Application of the Key DCS Technologies for 1 000-MW Double Reheat Ultra-Supercritical Units[J]. Electric Power, 2017, 50(6): 21-26.

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The Development and Application of the Key DCS Technologies for 1 000-MW Double Reheat Ultra-Supercritical Units

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