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Generating Units With High Reliability
Oct 11, 2017

Generally our common Generating Units are driven by steam turbines, turbines or internal combustion engines, such as petrol engines, diesel engines, and renewable energy sources such as nuclear energy, wind energy, solar energy, biomass energy, ocean energy, etc. Because of the large capacity of the diesel generating set, the machine can run and keep the power supply for a long time, can run independently, not run in parallel with the regional power grid, and is not affected by the power grid fault, and has higher reliability. Especially for some areas of common power is not very reliable situation, the diesel generator as a standby source, not only can play the role of emergency power, but also through the rational optimization of low-voltage system, some of the more important load in the ordinary use of power outages, so in the project has been widely used. The basic principles and structural forms of the common Generating Units are described below.The diesel engine drives the generator to run and converts the diesel's energy into electricity. In the cylinder of the diesel engine, the clean air filtered by the air filter is fully mixed with the high-pressure atomized diesel oil ejected from the nozzle, and the volume shrinks and the temperature rises rapidly to reach the ignition point of the diesel. Diesel is ignited, the mixture of gas burning violently, the volume of rapid expansion, pushing the piston downward, known as ' work. Each cylinder in order to work in a certain sequence, acting on the piston of the thrust through the connecting rod into the driving force of the crankshaft rotation, thus driving the crankshaft rotation. The brushless synchronous alternator is installed with the crankshaft of the diesel engine, the rotor of the generator can be driven by the rotation of the diesel engine, using the principle of ' electromagnetic induction ', the generator will output the inductive electromotive force, and the closed load loop can generate the current. This only describes the basic working principle of the generator set. A ange of diesel and generator control, protection devices and loops is also required to obtain a reliable, stable power output.The diesel engine drives the generator and converts the diesel's energy into electricity, depending on its use, it can be divided into land diesel generating sets and marine diesel generating sets; If according to brand difference, can be divided into domestic diesel generator set and imported diesel generator set; According to the different speed, can be divided into Low-speed Generating Units and high-speed generators.Diesel Generating Units are generally composed of three parts: engine, generator and controller. The engine provides power, the generator will be the engine's mechanical energy conversion to electricity, the controller is the brain part of the generator set, not only to provide the engine start-up, downtime, data measurement, data display and fault protection functions, but also to provide the power generator measurement, display and protection functions.