Synchronous power generator wideband voltage adjustment and protection device
A synchronous generator and voltage regulation technology, applied in the field of voltage regulation and protection devices, synchronous generator broadband voltage regulation and protection devices, can solve problems such as insulation phase sequence error generators, generator output voltage instability, etc., to ensure The effect of safe operation and prevention of over-excitation and under-excitation
Active Publication Date: 2015-04-22
SHENYANG AEROSPACE XINGUANG GRP
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Problems solved by technology
It solves the problem of unstable output voltage of the generator in the wide frequency range in the prior art, and completes overvoltage, undervoltage, overfrequency, underfrequency, insulation reduction, phase loss, phase sequence error and generator overload when the generator is running. Protective function
Method used
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[0029] like Figure 1-2 As shown, the primary power supply and the secondary power supply are set up, and the 800Hz power supply of the permanent magnet generator in the generator is rectified into 27V DC and is used as a hot backup with the external 24V DC power supply as the primary power supply to supply power to the device. The secondary power supply is the The primary power is converted into 5V, 12V, 24V stable power required by the internal circuit.
[0030] Set up the excitation control unit, using two sets of switch circuits in series, one of which uses PWM technology to control the average current of the generator excitation coil to achieve the purpose of controlling the output voltage of the generator, and the other set controls the connection of the generator excitation through the switch signal and disconnection control; multi-parameter feedback control of generator voltage is realized by using multi-parameters of generator terminal voltage deviation, frequency dev...
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The invention relates to a synchronous power generator wideband voltage adjustment and protection device and is suitable for the field of medium frequency portable power generation. The synchronous power generator wideband voltage adjustment and protection device comprises a primary power supply, a secondary power supply, an excitation control unit, a detection unit, a logic control unit and an amplification output unit for controlling instructions. Multiple parameters of power generator terminal voltage deviation, frequency deviation and power generator stator current deviation are used as feedback signals to achieve multiple parameter feedback control of power generator voltage and remarkably improve power generation quality of a power generator. An omnibearing online real-time detection mode of voltage, frequency, phase sequence, insulation, excitation, overload and the like which are output by power generator is utilized to guarantee safety and reliability of running of the power generator.
Description
technical field [0001] The invention relates to a generator voltage regulation and protection device, in particular to a synchronous generator broadband voltage regulation and protection device, which is applicable to a power generation frequency of 400 Hz and has broadband adaptability of a frequency of 160 to 480 Hz, and is mainly suitable for intermediate frequency power generation field. Background technique [0002] The intermediate frequency generating set is mainly used in aircraft and ground equipment in China due to its advantages of small size and light weight. At present, there is a great demand for intermediate frequency power generation equipment in China, but the functions of the intermediate frequency power generation equipment in the existing technology are relatively single, especially in the wide frequency range, the output voltage of the generator is unstable, and overvoltage, undervoltage, overfrequency, undervoltage Frequency, insulation reduction, phas...
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IPC IPC(8): H02P9/44
Inventor 王宝新曲春普刘钰琼景月
Owner SHENYANG AEROSPACE XINGUANG GRP