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Output voltage control apparatus of generator

A technology of output voltage control and generator, which is applied to the control of generators, control of generators through magnetic field changes, control systems, etc., can solve the problems of increased manufacturing costs, unimproved or worsened distortion rates, and achieve improved distortion rates Effect

Active Publication Date: 2011-05-04
HONDA MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the above-mentioned coil adjustment for the purpose of improving the waveform is an adjustment under a certain load condition, so when the load ratio of the generator is different, there may be loads where the distortion rate is not improved or deteriorated. condition
[0010] In addition, manufacturing technology capabilities are required when implementing skew and brake coils, and there is a problem of increased manufacturing costs

Method used

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  • Output voltage control apparatus of generator

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Embodiment Construction

[0040] Hereinafter, the present invention will be described in detail with reference to the drawings. figure 1 It is an explanatory diagram showing the configuration of main parts of a generator including an output control device according to an embodiment of the present invention.

[0041] The generator 1 is a known alternator, and includes a generator coil 2 and a field coil 3 provided on the stator side, and a field coil 5 wound around a rotor 4 . A permanent magnet 6 for generating an excitation current is installed on the rotor 4 .

[0042] The rotor 4 rotates synchronously with the rotation of an engine (not shown) as a drive source. A permanent magnet 8 is attached to a flywheel 7 on the engine side that rotates synchronously with the rotor 4 via a crankshaft, and an engine phase angle is detected by an engine phase detection coil 9 provided near the flywheel 7 to detect engine ignition timing.

[0043] Field coil 5 is connected to automatic voltage regulator (AVR) 10...

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PUM

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Abstract

When a distortion of an output waveform of an alternating-current generator is improved, an output voltage control apparatus of a generator, which has versatility, is obtained. The generator (1) includes a generator winding (2) and an excitation winding (3) wound around a stator side, a field winding (5) wound around a rotor (4), and a rectifier (12) for rectifying a current generated by the excitation winding (3) and supplying the rectified current to the field winding (5), the output voltage control apparatus includes a field current drive means (20) for comparing an output voltage generated to the generator winding (2) with a reference wave whose distortion ratio is 0% and flowing a field current to the field winding (5) by adjusting a drive timing of a PWM signal output by a drive unit (24) based on a result of the comparison.

Description

technical field [0001] The present invention relates to an output voltage control device of an alternator having a generator coil, an excitation coil and a field coil, in particular to an output voltage control device suitable for improving the distortion of the output voltage waveform. Background technique [0002] As an output voltage control device of a generator, for example, as shown in Patent Document 1, an automatic voltage regulator for an alternator is known, which has a generating coil and an exciting coil wound on the stator side; and a field coil on the rotating rotor; and a rectifier for rectifying the current generated in said field coil to supply said field coil, the alternator using an automatic voltage regulator by controlling the current supplied to said field coil Current, thereby maintaining the voltage output from the generator coil at a preset voltage. [0003] In such an output voltage control device, as a technique to improve the distortion of the ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/30H02P9/14
CPCH02P9/305
Inventor 中田泰弘前田河稔
Owner HONDA MOTOR CO LTD
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