Diesel engines are internal combustion engine driven generator. It started fast, easy to operate. But the high cost of engine power, so the main diesel generator for emergency standby power, or in the mobile station and a number of large power grids have not yet reached the regions. Diesel generator speed is usually 1000 r / min below the capacity of a few kilowatts to several thousand kW, 200 kW in particular the following units used more often.It creates simple. Diesel engine output shaft torque ripple periodically, so the vibration generator in the severe conditions. Therefore, the structural components of diesel generators, in particular, the shaft must be of sufficient strength and rigidity to prevent fracture due to vibration of these parts.In addition, to prevent the torque ripple caused by uneven generator angular velocity, causing voltage fluctuations caused by flashing lights, diesel generator rotor also requires a greater moment of inertia, and the shaft should be made with the natural frequency of torsional vibration Engine torque ripple in either the frequency of the alternating component of more than 20% difference, so as to avoid resonance, resulting in broken shaft accident.

    Mainly by the diesel engine diesel generator, generator and control system components, diesel engines and generators, there are two connections, one for flexible connection, which uses two-part coupling the docking, two for the rigid connection, with high strength bolts to Generator connected steel sheet and plate connection from engine flywheel,now compared with more rigid, diesel engines and generators connected in the public at the end after the installation of the shelves, and then coupled with various sensors, such as temperature sensors, these sensors, the engine's running status display to the operator, but also These sensors, you can set an upper limit, when reached or exceeded this limit alarm when the control system will pre,this time if the operator does not take measures to control unit will automatically be stopped, diesel generator is to take effect this way, the role of self-protection. A variety of sensors and feedback received from the role of information, a true indication of the data and implementation of protection is the unit's own control system.