JPS60187300A - Exciter of generator - Google Patents

Abstract

PURPOSE:To prevent the overshoot of the output without disturbing the establishment of a voltage by providing a damping coil in the same magnetic path as an exciter coil and supplying the output of the exciter coil through a Zener diode to the damping coil. CONSTITUTION:Main and exciter coils 4, 5 are wound on a stator 7, an exciting coil 6 is wound on a rotor 8, and a damping coil 9 is wound in the same magnetic path as the coil 5. An automatic voltage regulator 2 compares the output voltage with a set value, and controls ON and OFF of a control transistor 18 to control a current supplied from the coil 5 to the coil 6. When the output voltage of the coil 5 increases the Zener voltage of a Zener diode 13 or higher, a current lows to the coil 9. Thus, the saturation of the stator core is accelerated to suppress the generated voltage.

Description

[Detailed description of the invention] (Number 11 above) The present invention relates to an excitation system w for a generator, and is intended to prevent and stabilize the output σ, 2-bar shoot, etc. It is for gaining sex.

(traditional technology) In general, automatic power generation systems require the following steps to establish voltage during load.
It is necessary to increase the exciter pressure.However, the exciter? [If you increase the I' pressure, at light load,'
11. When there is a disturbance such as a rotational fluctuation due to the automatic pressure regulator, so-called flickering may occur in the load such as an electric light.

(Object of the Invention) The present invention has been made in view of this point, and its purpose is to prevent output over-sheeting, etc., without interfering with voltage establishment. The purpose is to provide an excitation device for the generator.

(Structure of the Invention) In order to achieve this object, the present invention provides a generator of the type in which a good voltage is supplied to the excitation filter by the exciter filter. and the damping coil,
The configuration is such that Zena diodes are connected to both ends of the rectifier on the night flow side of the rectifier connected to the exciter coil via both rows. As a result, when the Ichikawa obtained from the exhaust coil via the rectifier suddenly reaches a level higher than the Zena voltage of the Zena diode, the current flows through the damping fill. The present invention is characterized in that the outputs of both main coils are suppressed in order to encourage the generation of To explain, first, in FIG. 1, 1 is a self-excited generator driven by an engine, 2 is an automatic voltage regulator, and 3Fi load. Generator 1 has a main generating coil (hereinafter referred to as main coil)
4 and auxiliary generator coil (81d, called exciter coil)
5 and an excitation coil 6, the main coil 4 and the exciter coil 5 are wound around a stator indicated by reference numeral 7 in FIG. The generator 1 is of a type that supplies the voltage obtained by the exciter coil 5 to the excitation coil 6.The generator 1 is further provided with a damping coil 9, and the damping coil 9 is shown in Figure 2. As shown, the exciter coil 5 is wound around the stator 7.
The IH magnetic flux is generated in the circuit magnetic path by the voltage obtained from the rectifying N path (to be described later). still,
Three loads are connected to the 1II11 end of the main coil 4 with a no-heat sprayer 10 interposed at one end thereof.

The automatic voltage regulator 2 is interposed between the excitation filter 6 and n41 of the exciter coil 5 of the power generation type 1, and controls the excitation operation of the excitation coil/L-5 by the voltage from the exciter filter 5, and its circuit configuration is as follows: To explain, first 11
This is an injured rectifier circuit.

The rectifier L circuit 11 is connected at its input end or to both ends of the exciter coil 5, and performs full-wave rectification of the output pressure from the exciter coil 5. A capacitor 12 is connected to the output end of the first rectifier circuit 11, and the common connection point of the first rectifier circuit 11 is connected to the gold side of the excitation coil 6. In parallel with this capacitor 12, a first regulator is connected to both ends of the L circuit 11 on the DC side via a Zena diode 13.

The flywheel diode 14 is a 14-k flywheel diode, which is connected in antiparallel to the 1ll magnetic film 6 and gives a flywheel effect to the Fjhlet fill 6.

Two automatic m-voltage p regulators have the above configuration (tp), a second rectifier circuit 15, a voltage detection transistor 16, a turtle transistor 17 and a control transistor 18 constituting the Darlington circuit, a zener diode 19, , Funden? 2
i, l, 2L 22 and resistance n, 'lA, 5, 26.
(27, 27, and 4, but since these circuit configurations are the same as those of the prior art, detailed explanations thereof will be omitted here with illustrations.

Next, the operation of this embodiment configured as described above will be explained. 1 Now, when the rotor 8 rotates, a voltage is generated in the exciter coil 5 due to the residual magnetic flux, and this voltage turns on the control transistor 18 and the power transistor 17, and an excitation TrL force is applied to the excitation coil 6. cru, this ll+ 4f, (due to the increase in rRh m of the fill 6 and the rotational speed of the rotor 9, the generation rate r+: of the main coil 4 increases by more than Li(A) and becomes 0. After the air pressure rises, when the normal pressure of the main fill 4 exceeds the set voltage, the zener diode 19 becomes conductive and the voltage detection transistor 16 turns on.As a result, the control transistors 18 turn off. As you know, the voice quadrants 17 are turned off, and the electric power is no longer supplied to the magnetic coil 6, causing the main coil 4 to generate, causing fL to go low. Since the Zener diode 19 becomes non-exclusive again due to the code, the '4tr4- detection transistor 16 is turned off, and the control transistor 1b s ''+
The lf transistor 17 was changed to the main one,
Excitation 71 (force is applied to the magnetic field μ6).By performing this operation,
The generation type and pressure of the main coil 4 must be kept constant (・
It becomes ζ.

At around k, after the voltage rises ρ, the voltage Ec across the capacitor 12 (exciter voltage) is the Zener voltage FrczVCil of the Zener diode 13, and as long as it exceeds this,
Zena diode 13 becomes conductive, and as a result,
11! A current determined by the pressure Ec Bcz and the resistance R of the damping fill 9 flows through the damping coil 9, and as shown in FIG. The saturation of the magnetic path is accelerated, and the main coil 4 and the external coil 5
Since the generated voltage is suppressed and tends to decrease, the conduction angle of the CtL quadrants 17 is widened by the operation of the automatic voltage regulator 2, promoting the low-low 80 energization and compensating the output voltage. becomes. That is, the stability of the generator 10 is improved, and the flicker caused by the rotational wild movement when the negative direction is an electric light or the like during a light negative direction is suppressed. On the other hand, if the negative persimmon becomes thicker, the exciter voltage Ec will drop, so the current flowing through the damping coil 9 will be in that range, and the output of the power generation m1 will be maintained.

In addition, the Zena' viewing pressure Ecz 2 and the resistance R of the damping coil 9 were determined by tests, such as switching between the self 4 and the chisel pressure, control by the glass holder 2, and flickering when actually lighting the penetrating light. Take a look at the candy and decide which candy you like the most.

(Invention Glue 11) It is relatively easy to disturb Denda Kintatsu by configuring Hli L like this, even if it is temporary. The robust structure prevents overshoot of the H riff and improves stability. As a result, it is possible to prevent flickering when there is an intervening city or light, and the generator can be used comfortably on a regular basis.

[Brief explanation of the drawing]

Fig. 1 is an electric circuit diagram showing the configuration of the device of the present invention, and Fig. 2 is a diagram showing the paulownia ring configuration of a generator equipped with a damping coil according to the present invention. 1...Power generation fence

Claims (1)

[Claims] (1) The voltage obtained by the exciter coil is 1iil)
In a type of generator that supplies a magnetic coil, a damping coil that generates a magnetic flux is installed in the same magnetic path as the exciter coil, and the damping coil is connected to the The rectifier connected to the coil “1 flow lll1llll’l!
An mh magnetic pole of a generator characterized by being connected to the l end.