The prime mover, also known as the power machine, is an important driving part of mechanical equipment. Prime mover generally refers to all machinery that uses energy to generate motive power. According to the energy used, there are heat engines, hydraulic engines, wind engines and electric motors, etc.; it is the main source of power required in modern production and life fields. The prime mover can provide the active power and various losses of the unit, including mechanical losses, electromagnetic losses, etc.
Extended information:
1. Heat engines
Heat engines are the main power machinery used by humans. Commonly used heat engines include internal combustion engines (including gasoline engines, diesel engines, and gas engines, etc.), gas turbines, and steam power devices.
2. Wind turbine
Wind turbine is an electrical equipment that converts wind energy into mechanical work. The mechanical work drives the rotor to rotate and finally outputs alternating current. Wind turbines generally consist of components such as a wind wheel, a generator (including devices), a director (tail), a tower, a speed limiting safety mechanism, and an energy storage device.
3. Motor
Motors are divided into DC motors and AC motors according to different power sources. Most of the motors in the power system are AC motors, which can be synchronous motors or asynchronous motors ( The motor stator magnetic field speed and the rotor rotation speed do not maintain the same speed).
2. Precautions for using the motor
1. Before disassembly, use compressed air to blow off the dust on the surface of the motor and wipe the surface dirt clean.
2. Select the working place where the motor will be disassembled and clean up the on-site environment.
3. Be familiar with the structural characteristics and maintenance technical requirements of motors.
4. Prepare the tools (including special tools) and equipment required for disassembly.
5. In order to further understand the defects in the operation of the motor, if possible, an inspection test can be done before disassembly. To this end, put the motor on load for test rotation, check the temperature, sound, vibration, etc. of each part of the motor in detail, and test the voltage, current, speed, etc., then disconnect the load, conduct a separate no-load inspection test, and measure the no-load test. Record the load current and no-load loss.
Baidu Encyclopedia - Prime Mover
Baidu Encyclopedia - Electric Motor
Direct drive wind turbine refers to a direct drive wind turbine that does not transmit power through a gearbox. A wind power generation system in which the wind turbine directly drives the generator rotor to rotate;
Semi-direct drive wind turbine generally refers to transmitting power only through a first-level gearbox (rather than a third-level gearbox), increasing the speed by a certain amount A wind power generation system that rotates the rotor of a horizontal rear drive generator.