Research on Electrical And Thermal Characteristics of Coupled Thermal Storage-thermal Power Unit System for Isolated Grid Operation
Conventional cogeneration units in highly cold regions suffer from the phenomenon of"cogener-ation coupling",which results in downtime and inability to supply heat in the event of a grid failure.The coupled system composed of electric boiler and thermal power unit can operate stably with electric and thermal loads during the isolated grid operation.So this paper based on the electric boiler and thermal power combined system model and coupled system isolated network operation strategy,analysed in the e-lectric and thermal load wide range of changes,the key parameters of the main steam steam pressure and speed change rule,the range of thermal and electrical loads that the combined system can withstand is al-so given,as well as the maximum rate of change of the electrical and thermal loads under the condition of ensuring the safe operation of the unit.
thermal power unitelectric boilersisolated network operationsystem performance