MA Chengxia1, WANG Hongwei1, QIN Rui1, et al. INFLUENCE OF USING OVER SPEED PROTECTION CONTROL OF STEAM TURBINE UPON THE FREQUENCY IN POWER GRID AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2011, 40(12): 70-72.
MA Chengxia1, WANG Hongwei1, QIN Rui1, et al. INFLUENCE OF USING OVER SPEED PROTECTION CONTROL OF STEAM TURBINE UPON THE FREQUENCY IN POWER GRID AND COUNTERMEASURES THEREOF[J]. Thermal power generation, 2011, 40(12): 70-72.DOI:
The traditional overspeed protection control(OPC) uner operation state of isolated power grid may make the govener valve of steam turbine to be frequently actuated due to large fluctuation in rotation speed of the steam turbine
affecting the stability of frequency in power grid.For this
taking the reheated steam turbine as example
a mathematical model for emulating the multiregional single machine infinite system has been established
the influence of different set values of OPC upon the stability of frequency in power grid under operation state of isolated power grid has been emulated
the measures of suitably enhancing the set value of OPC during the time of decoupling the units being put forward