ZHANG Ke. Analysis of deep load regulation technical modification for a 660 MW power unit[J]. Ningxia Electric Power, 2023, (3).DOI: 10.3969/j.issn.1672-3643.2023.03.011.
In response to the demands of deep load regulation in the power grid and to explore the potential of thermal power units
a comprehensive experimental study was conducted on a 660 MW unit.By combining the unit′s operating experience and parameters
its safety and economic performances at low load conditions were objectively assessed.This analysis identified factors restricting the unit′s capability for deep load regulation.Consequently
feasible modifications or optimizations to address these issues were proposed.Practical applications reveal that several factors must be considered to meet the power grid′s load regulation requirements.These include the boiler′s performance at low loads
hydrodynamic stability
pollutant emissions
the steam turbine′s adaptability to low loads
and the power unit′s ability for synchronized automatic control.