Abstract

A summary of Siemens T3000 system digital electro-hydraulic (DEH) self-startup control is proposed. On the foundation of analysis in turbine subgroup logic condition and step sequence, critical link and step sequence of turbine startup process is put forward, which is convenient for operator to master turbine startup characteristics quickly. Existing problems in DEH control logic are revealed and specific disposing measures are given. Application of the system in a 2×660 MW thermal power plant proves a secure and smooth operation of power units.

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