Operation control method for marine direct-current steam turbine generator unit

• Main Authors: JIANG XIN, WANG HONGLIANG, WANG JIADIAN, WANG YONGGANG, FAN WEIYUAN, SU XU, SUN DAN
• Format: Patent
• Language: Chinese; English
• Published: 24.12.2021
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

The invention aims to provide an operation control method for a marine direct-current steam turbine generator unit. The method is characterized in that when a heavy-load loading switch signal is detected, a steam turbine generator unit is switched from a frequency modulation control mode to an acceleration control mode, and a target value of rotating speed control is an acceleration value of the rotating speed of the unit; when the heavy-load loading switch signal is detected, a steam inlet adjusting valve of the unit is instantly and fully opened, so that the amount of steam entering the steam turbine generator unit reaches the maximum, and a rotor of the steam turbine generator unit firstly does uniformly accelerated motion and then does uniformly retarted motion; when the acceleration of the rotor is 0, the speed of the rotor does not change any more; when it is detected that the rotor acceleration reaches 0, the control mode is switched to the rotating speed control mode, the target rotating speed is auto