Diesel generator （Introduction-III）
parameter
The manufacturer provides detailed installation instructions to ensure correct functionality, reliability and low maintenance costs. When purchasing a generator online, you must ensure that the product comes with an installation guide and product description. The guidance covers the following:
Sizing and Sizing - Typical loads of electrical equipment, expected loads of the application
Electrical Factors - Peak Load vs. Stable, Allowed Applications
Ventilation - Allow airflow during cooling (design)
Model-specific noise - dB level
Exhaust Volume - Certain elements in ppm (parts per million), taking into account the environment and surroundings of the generator
Starting systems - key start, pull start, push button start, etc.
Unit size
home, shop, office
For homes, small shops and offices, equipment sizes range from 8 to 30 kW (also 8 to 30 kVA single phase)
factory
Large industrial generators from 8 kW (11 kVA) to 2,000 kW (2,500 kVA three-phase) complexes. The 2,000 kW unit can be installed in a 12 meter ISO container, with fuel tanks , controllers , power distribution equipment and all other equipment required to operate as a stand-alone power station or as backup for grid power.
small power station
Combinations of these modules are used in small power stations, and each module uses 1 to 20 units and can be combined into hundreds of power modules. In these larger sizes, the power modules (engine and generator) are brought individually onto the trailer and connected together with large and control cables to form a fully synchronized power plant. There are also many options to suit specific needs, including control panels for automatic starting and power paralleling , ventilation for stationary or mobile applications , fuel supply systems, exhaust systems and more. [2]
The main purpose
Power supply for daily use
Although the power of diesel generator sets is low, due to their small size, flexibility, lightness, complete facilities, and easy operation and maintenance, they are widely used in mining, railways, field construction sites, road traffic maintenance, as well as factories, enterprises, hospitals and other departments .
Emergency Power Supply
Diesel generator sets are used where there is no connection to the grid, or as emergency power in the event of a grid failure , as well as for more complex applications such as peak tripping , grid support and grid output.
Direction of development
Generator sets shoulder the important task of providing complete sets of power generation equipment for the national economy and people's daily life , so they will still occupy a very important position for a long time. With the advancement of the times and the development of society, the original generator sets are bulky, high in fuel consumption, noisy , and have serious exhaust pollution , which are obviously no longer suitable for the needs of society. Therefore, the future development direction of generator sets should be energy-saving, environmentally friendly, lightweight, miniaturized, and beautiful. Only in this way can the potential advantages of the generator set be brought into play.
Cutting edge applications
In an independent AC microgrid system, coordinated control between diesel generators and battery energy storage is the key to ensuring stable operation of the system. Taking advantage of the fast response characteristics of battery energy storage , a coordinated control method for diesel generators and energy storage batteries is proposed. When the diesel generator is used as the main power supply , the auxiliary power control signal is introduced into the traditional droop control of the energy storage system to prevent system collapse caused by long-term overcurrent of the diesel engine and improve system stability . In order to solve the problem of short-term power outage when the main power supply in the microgrid is switched from the energy storage system to the diesel generator or from the diesel generator to the energy storage system, a seamless switching of the dual main power supply of the diesel generator and the energy storage battery is proposed .control strategy .
The operation process of marine diesel generator sets is an important part of power station operation. The number of diesel generator sets operating in parallel determines the capacity of the ship's power station. The stability of parallel operation is closely related to the stability of ship power stations . Establishing a mathematical model that can accurately reflect the operation of diesel generator sets is of great significance to the operation control, simulation and performance analysis of power stations . The research on the parallel operation process of diesel generator sets involves the establishment of diesel generator models, parallel operation
