| 摘要 |
An apparatus for controlling a temperature of a lubricant for a drivetrain of a wind or water turbine includes a circuit for the lubricant (32) connected to the drivetrain (8); a heat exchanger (10) connected to the circuit for the lubricant (32), the circuit for heat exchange fluid (34) connected to the heat exchanger (10), and the circuit for heat exchange fluid further connected to a source of thermal energy and to a sink of thermal energy. A controller (36) regulates a flow of thermal energy between the lubricant and the heat exchange fluid via the heat exchanger (10). This means that when the turbine rotor (104) is being driven by wind or water and is generating electricity, thermal energy transferred to the lubricant can be dissipated via the heat exchanger (10) into the heat exchanger fluid. Similarly, when the turbine has not been generating electricity, or the turbine is operating under conditions where the lubricant temperature is low, thermal energy can be transferred into the lubricant from the heat exchange fluid via the heat exchanger (10). |
