The Domestically Made DCS System to Realize FCB in 1 000-MW Unit of Taishan Power Plant

doi:10.11930/j.issn.1004-9649.2014.8.107.5

Abstract

Abstract: The 1 000-MW unit in Taishan Power Plant did not possess the fast cut back(FCB) function in the original design. The existing FCB function is achieved through the local retrofit based on the margin of the original design. Firstly, the configuration of the unit is analyzed to determine whether the unit is capable of implementing the FCB function. Secondly, the orientation and strategy to realize the FCB function are fixed through the performance test to further verify that the performance and design of the main and auxiliary equipments can satisfy the requirements of the FCB function. Finally, the modification of the equipments and the improvement of the control logics are conducted during unit shutdown to realize the FCB function under 100% load condition. The FCB test results show that the unit has the capability to run with the auxiliary power load and can be restored to power delivery quickly in case of major abnormalities of power grids.

Key words: 1 000 MW, ultra-supercritical, fast cut back (FCB), DCS, retrofit, thermal power plant

CLC Number:

TK323

GONG Guang-zheng. The Domestically Made DCS System to Realize FCB in 1 000-MW Unit of Taishan Power Plant[J]. Electric Power, 2014, 47(8): 107-112.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.8.107.5

https://www.electricpower.com.cn/EN/Y2014/V47/I8/107

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