CN2423679Y - Exciting current automatic regulating device for diesel-driven generator - Google Patents
Exciting current automatic regulating device for diesel-driven generator Download PDFInfo
- Publication number
- CN2423679Y CN2423679Y CN 00214403 CN00214403U CN2423679Y CN 2423679 Y CN2423679 Y CN 2423679Y CN 00214403 CN00214403 CN 00214403 CN 00214403 U CN00214403 U CN 00214403U CN 2423679 Y CN2423679 Y CN 2423679Y
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- voltage
- output
- follower
- exciting current
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Abstract
The utility model relates to an exciting current control device of diesel generator sets, which comprises an error signal detector which is connected with three phase lines and a neutral line of a generator set, wherein the output end of the error signal detector is connected with a proportional integral differential regulator of which the output end is connected with a photoelectric coupler of which the output end is connected with a phase shift pulse generator and the output end of the phase shift pulse generator is connected with a thyristor of which the output end is connected with a shunting thyristor in the generator set. The exciting current automatic regulating device of diesel generator sets has the advantages of small size, light weight, low cost and high voltage regulation factor.
Description
The utility model relates to a kind of control device of exciting current of diesel generating set.
At present, the miniature diesel generating set that 50kW is following,, installation simple, easy to operate, lower-price characteristic little, in light weight with its volume, be extensive use of in small business and vast rural area, because manufacturer is for the consideration to aspects such as price, volumes, this class small power generation unit is not generally installed Automatic Exciting Current Adjuster, and the output voltage stabilization degree of unit is low, the dynamic electric voltage regulation is not high.Though simple and easy Automatic Exciting Current Adjuster has been installed by the producer that has, but owing to used voltage transformer, element that the current transformer equal-volume is bigger, thereby bring inconvenience for installation and use, price is also high, also because the operand of feedback regulation network only is a PN junction, when realizing improving voltage regulation, very easily cause the vibration of unit output voltage again, result of use is undesirable.
The purpose of this utility model provides the diesel generating set exciting current automatic regulating equipment that a kind of volume is little, in light weight, price is low and voltage regulation is high.
This diesel generating set exciting current automatic regulating equipment, comprise four input terminals and three lead-out terminals, on four input terminals, be connected to the error signal detector, this error signal detector comprises and is connected on three rectifiers on the phase line input terminal, two-way output is arranged on the output of rectifier, wherein be connected to the power circuit that constitutes by the step-down filter regulator circuit between one tunnel output and the neutral line input terminal, between the zero potential reference point end of this power circuit and neutral line input terminal, be connected to the voltage prewired circuit, the in-phase input end that voltage presets follower is connected with the voltage prewired circuit, another road output of rectifier output end is connected to voltage sample circuit, the in-phase input end of voltage sampling follower is connected with voltage sample circuit, after the output that above-mentioned voltage presets the output of follower and voltage sampling follower links together, be connected to the proportional integral derivative controller that constitutes by the amplifier integrated circuit, output at proportional integral derivative controller is connected to photoelectrical coupler, be connected to the phase-shift pulse generator that constitutes by triode and unijunction transistor on the output of photoelectrical coupler, the output of phase-shift pulse generator is connected this silicon controlled anode with the silicon controlled control utmost point, the common port of negative electrode and phase-shift pulse generator is connected with three lead-out terminals respectively.
Above-mentioned rectifier is the diode half-wave rectifier, and voltage presets follower and the voltage sampling follower is selected the amplifier integrated circuit for use.
In order to simplify circuit structure, reduced volume, the amplifier integrated circuit that voltage presets in follower, voltage sampling follower and the proportional integral derivative controller share a slice four high guaily unit integrated circuit.
When installing and using, with three the phase line input terminals of this diesel generating set exciting current automatic regulating equipment and shunting silicon controlled anode, negative electrode and the control utmost point that corresponding four outputs of a neutral line input terminal and diesel generating set are connected, three lead-out terminals connect diesel generating set respectively.After diesel generating set begins generating, at first adjust the potentiometer in the voltage prewired circuit, and then the size of regulating the exciting current of diesel generating set, make the output voltage of diesel generating set reach rated value, lock potentiometer then, diesel generating set enters the automatic adjustment state of exciting current.When positive and negative departing from takes place in the output voltage of diesel generating set and rated value, by rectifier described in the utility model, voltage sample circuit, voltage follower takes out voltage error signal, this voltage error signal through after the level proportional integral derivative controller adjust, trigger phase-shift pulse generator through photoelectrical coupler, produce phase-shift pulse, the forward position time of occurrence of this phase-shift pulse is controlled by the voltage error signal after proportional integral derivative controller is adjusted, this phase-shift pulse signal is after controllable silicon amplifies, send into the shunting silicon controlled control utmost point of diesel generating set through lead-out terminal, the size of control shunting thyristor operating angle, thereby realize the size of exciting current is automatically adjusted, the output voltage of diesel generating set is exported by rated value.
From the above mentioned, this diesel generating set exciting current automatic regulating equipment is selected general integrated circuit for use, photoelectrical coupler, triode, controllable silicon, diode and a spot of resistance, electric capacity, circuit structure was both simple, compact again, removed bulky, heavy current transformer and voltage transformer, it is little to have volume, in light weight, price is low, the characteristics of good electric property, its volume, weight and price are respectively 1/10th of old-fashioned exciting current adjusting devices, 1/12nd and 1/5th, learn that after tested the steady state voltage regulation of this exciting current automatic regulating equipment and dynamic electric voltage regulation improve 2% and 5% than old-fashioned device respectively.
Accompanying drawing shows the embodiment of this diesel generating set exciting current automatic regulating equipment, and wherein Fig. 1 is the circuit structure schematic diagram of embodiment, and Fig. 2 is that the wiring of this exciting current automatic regulating equipment and diesel generating set concerns schematic diagram.
In the present embodiment, diesel generating set exciting current automatic regulating equipment comprises four input terminal A, B, C, N and three lead-out terminal D, E, F, be connected to error signal detector 1 on four input terminal A, B, C, N, this error signal detector 1 comprises by the diode V that is connected on A phase line input terminal
1, be connected on the diode V on the B phase line input terminal
2With the diode V that is connected on the C phase line input terminal
3The rectifier that constitutes, three diode V
1, V
2, V
3The other end link together as the output of rectifier, this output has two-way output, wherein is connected to by dropping resistor R between one tunnel output and the neutral line input terminal N
2, filter capacitor C
1, two series connection voltage stabilizing didoe V
4, V
5The power circuit that constitutes is to the amplifier integrated circuit (IC)
1Voltage stabilizing didoe V is provided ± power supply of 10V
4, V
5Serial connection point G as the zero potential reference point, between this zero potential reference point and neutral line input terminal N, be connected to potentiometer RP, the resistance R that is connected in series
4The voltage prewired circuit that constitutes is by the amplifier integrated circuit (IC)
1The voltage that-b constitutes presets input in the same way and RP, the R of follower
4Serial connection point connect, another road output of rectifier output end is connected to by resistance R
1, R
3The voltage sample circuit that constitutes is by the amplifier integrated circuit (IC)
1The in-phase input end and the R of the voltage sampling follower that-a constitutes
1, R
3Tie point connect IC
1The output of-a and IC
1After the output of-b links together, be connected to by the amplifier integrated circuit (IC)
1-c, IC
1The proportional integral derivative controller 2 that-d constitutes, the output of proportional integral derivative controller 2 is connected to photoelectrical coupler IC
2, photoelectrical coupler IC
2Output on be connected to by triode V
8With single-transistor V
9The phase-shift pulse generator 3 that constitutes, the output of phase-shift pulse generator 3 and controllable silicon V
11The control utmost point connect this controllable silicon V
11The common port of anode, negative electrode and phase-shift pulse generator 3 be connected controllable silicon V respectively with lead-out terminal D, F, E
11With the power supply of phase-shift pulse generator 3, be by from the alternating current of alternating current generator group through rectifier diode V
10Rectification, voltage stabilizing didoe V
7Supply with after the voltage stabilizing.
Claims (4)
1, a kind of diesel generating set exciting current automatic regulating equipment, it is characterized in that comprising four input terminals (A, B, C, N) and three lead-out terminals (D, F, E), be connected to error signal detector (1) on four input terminals (A, B, C, N), this error signal detector (1) comprises the rectifier (V that is connected on three phase line input terminals (A, B, C)
1, V
2, V
3), rectifier (V
1, V
2, V
3) output on two-way output is arranged, wherein be connected to by step-down filter regulator circuit (R between one tunnel output and the neutral line input terminal (N)
2, C
1, V
4, V
5) power circuit that constitutes, between the zero potential reference point end (G) of this power circuit and neutral line input terminal (N), be connected to voltage prewired circuit (RP, R
4), voltage presets follower (IC
1-b) in-phase input end and voltage prewired circuit (RP, R
4) connect rectifier (V
1, V
2, V
3) another road output of output be connected to voltage sample circuit (R
1, R
3), voltage sampling follower (IC
1-a) in-phase input end and voltage sample circuit (R
1, R
3) connect, above-mentioned voltage presets follower (IC
1-b) output and voltage sampling follower (IC
1After-a) output links together, be connected to by amplifier integrated circuit (IC
1-c, IC
1-the proportional integral derivative controller (2) that d) constitutes is connected to photoelectrical coupler (IC at the output of proportional integral derivative controller (2)
2), photoelectrical coupler (IC
2) output on be connected to by triode (V
8) and unijunction transistor (V
9) phase-shift pulse generator (3) that constitutes, the output of phase-shift pulse generator (3) and controllable silicon (V
11) the control utmost point connect this controllable silicon (V
11) the common port of anode, negative electrode and phase-shift pulse generator (3) be connected with three lead-out terminals (D, F, E) respectively.
2, diesel generating set exciting current automatic regulating equipment according to claim 1 is characterized in that rectifier (V
1, V
2, V
3) be the diode half-wave rectifier.
3, diesel generating set exciting current automatic regulating equipment according to claim 1 is characterized in that voltage presets follower (IC
1-b) and voltage sampling follower (IC
1-a) select the amplifier integrated circuit for use.
4, diesel generating set exciting current automatic regulating equipment according to claim 3 is characterized in that voltage presets follower (IC
1-b), voltage sampling follower (IC
1-a) with proportional integral derivative controller (2) in amplifier integrated circuit (IC
1-c, IC
1-d) share a slice four high guaily unit integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214403 CN2423679Y (en) | 2000-04-21 | 2000-04-21 | Exciting current automatic regulating device for diesel-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00214403 CN2423679Y (en) | 2000-04-21 | 2000-04-21 | Exciting current automatic regulating device for diesel-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2423679Y true CN2423679Y (en) | 2001-03-14 |
Family
ID=33580509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00214403 Expired - Fee Related CN2423679Y (en) | 2000-04-21 | 2000-04-21 | Exciting current automatic regulating device for diesel-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2423679Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170257A (en) * | 2011-05-06 | 2011-08-31 | 北京前锋科技有限公司 | Rotatable master control module of brushless synchronous motor |
| CN111610813A (en) * | 2020-05-06 | 2020-09-01 | 湖南工程学院 | Constant-current driving circuit of electromagnetic valve for automobile |
-
2000
- 2000-04-21 CN CN 00214403 patent/CN2423679Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170257A (en) * | 2011-05-06 | 2011-08-31 | 北京前锋科技有限公司 | Rotatable master control module of brushless synchronous motor |
| CN111610813A (en) * | 2020-05-06 | 2020-09-01 | 湖南工程学院 | Constant-current driving circuit of electromagnetic valve for automobile |
| CN111610813B (en) * | 2020-05-06 | 2021-11-09 | 湖南工程学院 | Constant-current driving circuit of electromagnetic valve for automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |