Generator controller

Abstract

The invention provides a generator controller. The generator controller comprises a permanent power supply unit, an analog quantity acquisition unit, a switching value acquisition unit, a reliable power supply unit, a drive control unit, a generator synchronous power supply unit and a CPU control unit. The permanent power supply unit is used for supplying power, the analog quantity acquisition unit and the switching value acquisition unit are used for acquiring signals, the generator synchronous power supply unit is used for providing reference voltages, and the CPU control unit is used for operation and signal control. Whether a voltage signal or a current signal meets a preset condition is judged: when the voltage signal or the current signal does not accord with the preset condition, the fuse is judged to be burnt, so a switching-on or switching-off control instruction is generated, switching-on or switching-off is completed by driving the control unit, and full-automatic control ofthe generator can be realized.

Description

technical field [0001] The application belongs to the field of electric power technology, and in particular relates to a generator controller. Background technique [0002] At present, in some specific places or temporary important load places, the combined power supply mode of dual power supply and generator backup power supply is often used to ensure load power supply. Among them, such as figure 1 As shown, the power supply method of single power supply plus generator backup power supply is more common in general civil places; figure 2 As shown, the power supply method of dual power supply plus generator backup power supply is widely used in important places and important loads. [0003] In the scenario where the generator is used as the backup power supply, it is generally necessary to have personnel on duty in the distribution station. Most distribution stations do not have an automatic start-up control device for the generator. When a trip or fault trip occurs, pers...

AI Technical Summary

Problems solved by technology

[0006] 1) The automatic control device built by relays does not have the ability to judge and analyze line faults, and the switching process is relatively simple, with large logic loopholes, which reduces the reliability of power supply;

[0007] 2) The relay-type automatic control device also requires personnel to be on duty at all times. When switching faults, switching failures, relay malfunctions, mains flickering, mains recovery, etc. are found, human intervention is required to stop the generator from cutting in and breaking the generator switch.

[0008] 3) For most substations and places that do not use generator automatic control devices, manual operation results in long power outages for loads, unreliable operation, and a high probability of misoperation. The technical ability of the on-duty operation and maintenance personnel in the distribution station is too high, often requiring the cooperation of specialized generator personnel, which undoubtedly increases the waste of human resources and maintenance costs

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