Unit operation Diesel generator set can operate as a single unit, or multiple units can be operated in parallel and integrated into the power system. The operation of a single unit is restricted by many conditions: if its power meets the requirements of heavy load conditions, the economy of unit operation will be reduced during light load operation, and its standby unit must have the same capacity as the operating unit. Using multiple units to operate in parallel and integrated into the power grid can expand the power supply capacity and improve the reliability of power supply. There is only one standby unit, which relatively reduces the capacity of the standby unit. To achieve parallel operation, the following four conditions must be met : ①The terminal voltage is equal; ②The frequency is equal; ③The phase is the same; ④The phase sequence is the same. At the same time, there must be an operation protection device, which can automatically and reasonably allocate and adjust the active power and reactive power, so that the frequency modulation characteristic and the voltage regulation characteristic curve between the units tend to be close.
хттпс://ввв.сида-енгине.цом/
