CN201365223Y - Automatic excitation voltage regulator of generator - Google Patents
Automatic excitation voltage regulator of generator Download PDFInfo
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- CN201365223Y CN201365223Y CNU2009201264980U CN200920126498U CN201365223Y CN 201365223 Y CN201365223 Y CN 201365223Y CN U2009201264980 U CNU2009201264980 U CN U2009201264980U CN 200920126498 U CN200920126498 U CN 200920126498U CN 201365223 Y CN201365223 Y CN 201365223Y
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Abstract
The utility model discloses an automatic excitation voltage regulator of a generator, comprising a rectifying circuit, a voltage stabilizing and filtering circuit, a voltage setting circuit, a voltage sampling circuit, a voltage setting and comparing circuit, an exciting current control circuit, an excitation power rectifying and filtering circuit and an exciting current adjusting circuit. The automatic excitation voltage regulator is characterized in that the input terminal of an exciting current sampling circuit is connected with the output terminal of the exciting current adjusting circuit, the output terminal of the exciting current sampling circuit is connected with the input terminal of a voltage reduction and delay control circuit, and the output terminal of the voltage reduction and delay control circuit is connected with a first input terminal of the voltage setting and comparing circuit. The automatic excitation voltage regulator of the generator has simple circuits and reliable detection, and can reduce starting current impact of the dynamical load on the generator so as to lead the generator to operate stably, reduce the voltage when starting so as to reduce the current impact, thus being capable of effectively preventing the generator from overloading, and eliminating phenomena of shut down or rotating speed decrease and the like of the engine due to overload; and the automatic excitation voltage regulator can be widely applied to automatic excitation control of generator rotors.
Description
Technical field
The utility model relates to generator regulator, and relating in particular to the reduced-voltage starting load is the generator automatic magnetic exciting voltage regulator of motor.
Background technology
At present; known generator excitation voltage regulator all is the fixed voltage output of setting; as 220V/50Hz, 380V/50Hz; be to come control output voltage, if when generator is starting, when particularly connecting power type load such as motor, air blast by the exciting current size of regulator generator rotor; starting current will be greater than the rated current of generator output; will cause the power output deficiency of engine like this, rotating speed descends, even causes power to shut down.In light of this situation, we can select 3 times power headroom when being power type load configuration generator usually, the blower fan of a 650W for example, and we will select the generator of 2kw could guarantee that it can normally start at least.Like this, after starting normally, will cause nest electricity, power dissipation and fuel oil waste during operation.
The utility model content
Start the problem that shutdown and power dissipation are dragged in the power type load easily in order to solve existing generator, technical problem to be solved in the utility model is to provide a kind of generator automatic magnetic exciting voltage regulator.
According to a technical scheme of the present utility model, a kind of generator automatic magnetic exciting voltage regulator is provided, comprises rectification circuit, filter circuit of pressure-stabilizing, setting voltage circuit, voltage sample circuit, setting voltage comparison circuit, exciting current control circuit, field power supply current rectifying and wave filtering circuit, exciting current adjustment circuit;
The input of described rectification circuit connects the main winding of generator, and the output of rectification circuit connects the input of filter circuit of pressure-stabilizing and the input of voltage sample circuit;
The output of described filter circuit of pressure-stabilizing connects the input of setting voltage circuit, and simultaneously, filter circuit of pressure-stabilizing provides operating voltage for other circuit units;
The output of described setting voltage circuit connects the first input end of setting voltage comparison circuit;
The output of described voltage sample circuit connects second input of setting voltage comparison circuit;
The output of described setting voltage comparison circuit connects the input of exciting current control circuit, the output of exciting current control circuit connects the control end that exciting current is adjusted circuit, exciting current is adjusted an end of the input connection generator excitation winding of circuit, the other end of generator excitation winding connects the output of field power supply current rectifying and wave filtering circuit, and the input of field power supply current rectifying and wave filtering circuit connects the auxiliary winding of generator;
Be characterized in:
The input of described exciting current sample circuit connects the output that exciting current is adjusted circuit, the output of exciting current sample circuit connects the input of step-down delay control circuit, and the output of step-down delay control circuit connects the first input end of setting voltage comparison circuit.
According to preferred version of a kind of generator automatic magnetic exciting voltage regulator described in the utility model, described step-down delay control circuit 6 is by resistance R 3, R9～R14, capacitor C 2, comparator U1A, switching tube Q2, Q3 constitutes, one end of resistance R 14 connects the output of exciting current sample circuit, the other end of resistance R 14 connects the base stage of switching tube Q2, resistance R 8 is connected between the base stage and emitter of switching tube Q2, the grounded emitter of switching tube Q2, the collector electrode of switching tube Q2 meets the output VCC of filter circuit of pressure-stabilizing by resistance R 9, simultaneously, the collector electrode of switching tube Q2 connects the inverting input of comparator U1A, and by capacitor C 2 ground connection, resistance R 10 is connected in series with resistance R 11, the output VCC of one termination filter circuit of pressure-stabilizing of resistance R 10, one end ground connection of resistance R 11, resistance R 10 is connected the in-phase input end of comparator U1A with the connected node of resistance R 11, the output of comparator U1A connects the base stage of switching tube Q3 by resistance R 12, the grounded emitter of switching tube Q3, resistance R 13 is connected between the base stage and emitter of switching tube Q3, the collector electrode of switching tube Q3 connects resistance R 3, and the other end of resistance R 3 connects the first input end of setting voltage comparison circuit.
A preferred version according to a kind of generator automatic magnetic exciting voltage regulator described in the utility model, described exciting current sample circuit is by resistance R 5, R6, R7, capacitor C 1, comparator U1B constitutes, resistance R 5 is connected in series with capacitor C 1, one end ground connection of capacitor C 1, one end of resistance R 5 connects the output that exciting current is adjusted circuit 10, the connected node of resistance R 5 and capacitor C 1 connects the in-phase input end of comparator U1B, resistance R 6 is connected in series with resistance R 7, the output VCC of one termination filter circuit of pressure-stabilizing of resistance R 6, one end ground connection of resistance R 7, resistance R 5 is connected the inverting input of comparator U1B with the connected node of resistance R 7, the output of comparator U1B connects the input of step-down delay control circuit.
A preferred version according to a kind of generator automatic magnetic exciting voltage regulator described in the utility model, described exciting current is adjusted circuit and is comprised triode Q15, Q9, Q11, Q13, resistance R 36, R37, R48, R49, capacitor C 9, diode D19, D21, D32, the base stage of described triode Q15 connects the output of exciting current control circuit, the grounded emitter of described triode Q15, the collector electrode of described triode Q15 connects the base stage of described triode Q9, and by an end of resistance R 36 connection generator excitation winding L 3 and the negative pole of diode D19, described triode Q9, Q11 forms Darlington transistor, the collector electrode of the collector electrode of described triode Q9 and described triode Q11 is connected to described diode D19 simultaneously, the positive pole of D21, the other end of the negative pole of described diode D32 and generator excitation winding L 3, the emitter of described triode Q11 is connected with the base stage of described triode Q13, and by resistance R 48 ground connection, the emitter of described triode Q13 is by resistance R 49 ground connection, the emitter of described triode Q13 is connected with the input of described exciting current sample circuit 5 simultaneously, the collector electrode of described triode Q13 connects the negative pole of diode D12, resistance R 37 and capacitor C 9 are connected in series between the collector electrode of the base stage of described triode Q9 and described triode Q13, the plus earth of described diode D32.
A preferred version according to a kind of generator automatic magnetic exciting voltage regulator described in the utility model, described voltage sample circuit comprises resistance R 56, R50, R62, R68, R76, adjustable resistance RP1, capacitor C 20, described resistance R 56 is connected with capacitor C 20, the other end of resistance R 56 connects the output of rectification circuit and an end of resistance R 50, described resistance R 56 is connected with resistance R 62 with the connected node of capacitor C 20, the other end ground connection of capacitor C 20, described resistance R 68, R76 connects with debugging resistance R P1, the other end ground connection of resistance R 76, the other end of resistance R 68 connects resistance R 50 simultaneously, the end of R62, the adjustable end of adjustable resistance RP1 is connected with second input of setting voltage comparison circuit.
The beneficial effect of a kind of generator automatic magnetic exciting voltage regulator described in the utility model is: described generator automatic magnetic exciting regulator circuit is simple; detect reliable; can reduce the starting current impact of power type load to generator; make generator operation stable; when starting, reduce voltage; reduce rush of current; when rotating speed just switches to rated voltage during near rated speed; can prevent the generator overload effectively; make engine can not occur because of overload shut down or rotating speed under the degradation phenomenon, the utility model can be widely used in the generator start-up control.
Description of drawings
Fig. 1 is the theory diagram of a kind of generator automatic magnetic exciting voltage regulator described in the utility model.
Fig. 2 is the circuit theory diagrams of a kind of generator automatic magnetic exciting voltage regulator described in the utility model.
Embodiment
Referring to Fig. 1, a kind of generator automatic magnetic exciting voltage regulator described in the utility model, adjust circuit 10 by rectification circuit 7, filter circuit of pressure-stabilizing 8, setting voltage circuit 9, voltage sample circuit 1, setting voltage comparison circuit 2, exciting current control circuit 3, field power supply current rectifying and wave filtering circuit 4, exciting current, exciting current sample circuit 5, step-down delay control circuit 6 constitute.The input of described rectification circuit 7 connects the main winding L1 of generator, and the output of rectification circuit 7 connects the input of filter circuit of pressure-stabilizing 8 and the input of voltage sample circuit 1; The output VCC of described filter circuit of pressure-stabilizing 8 connects the input of setting voltage circuit 9, and simultaneously, filter circuit of pressure-stabilizing 8 provides operating voltage for other circuit units; The output of described setting voltage circuit 9 connects the first input end of setting voltage comparison circuit 2; The output of described voltage sample circuit 1 connects second input of setting voltage comparison circuit 2; The output of described setting voltage comparison circuit 2 connects the input of exciting current control circuit 3, the output of exciting current control circuit 3 connects the control end that exciting current is adjusted circuit 10, exciting current is adjusted an end of the input connection generator excitation winding L 3 of circuit 10, the other end of generator excitation winding L 3 connects the output of field power supply current rectifying and wave filtering circuit 4, and the input of field power supply current rectifying and wave filtering circuit 4 connects the auxiliary winding L2 of generator; The input of described exciting current sample circuit 5 connects the output that exciting current is adjusted circuit 10, the output of exciting current sample circuit 5 connects the input of step-down delay control circuit 6, and the output of step-down delay control circuit 6 connects the first input end of setting voltage comparison circuit 2.
Referring to Fig. 2, in this enforcement side, described step-down delay control circuit 6 is by resistance R 3, R9～R14, capacitor C 2, comparator U1A, switching tube Q2, Q3 constitutes, one end of resistance R 14 connects the output of exciting current sample circuit 5, the other end of resistance R 14 connects the base stage of switching tube Q2, resistance R 8 is connected between the base stage and emitter of switching tube Q2, the grounded emitter of switching tube Q2, the collector electrode of switching tube Q2 meets the output VCC of filter circuit of pressure-stabilizing 8 by resistance R 9, simultaneously, the collector electrode of switching tube Q2 connects the inverting input of comparator U1A, and by capacitor C 2 ground connection, resistance R 10 is connected in series with resistance R 11, the output VCC of one termination filter circuit of pressure-stabilizing 8 of resistance R 10, one end ground connection of resistance R 11, resistance R 10 is connected the in-phase input end of comparator U1A with the connected node of resistance R 11, the output of comparator U1A connects the base stage of switching tube Q3 by resistance R 12, the grounded emitter of switching tube Q3, resistance R 13 is connected between the base stage and emitter of switching tube Q3, the collector electrode of switching tube Q3 connects resistance R 3, and the other end of resistance R 3 connects the first input end of setting voltage comparison circuit 2.
In the present embodiment, described exciting current sample circuit 5 is by resistance R 5, R6, R7, capacitor C 1, comparator U1B constitutes, resistance R 5 is connected in series with capacitor C 1, one end ground connection of capacitor C 1, one end of resistance R 5 connects the output that exciting current is adjusted circuit 10, the connected node of resistance R 5 and capacitor C 1 connects the in-phase input end of comparator U1B, resistance R 6 is connected in series with resistance R 7, the output VCC of one termination filter circuit of pressure-stabilizing 8 of resistance R 6, one end ground connection of resistance R 7, resistance R 5 is connected the inverting input of comparator U1B with the connected node of resistance R 7, the output of comparator U1B connects the input of step-down delay control circuit 6.
Described exciting current is adjusted circuit 10 by triode Q15, Q9, Q11, Q13, resistance R 36, R37, R48, R49, capacitor C 9, diode D19, D21, D32 constitutes, the base stage of described triode Q15 connects the output of exciting current control circuit 3, the grounded emitter of described triode Q15, the collector electrode of described triode Q15 connects the base stage of described triode Q9, and by an end R of resistance R 36 connection generator excitation winding L 3 and the negative pole of diode D19, described triode Q9, Q11 forms Darlington transistor, the collector electrode of the collector electrode of described triode Q9 and described triode Q11 is connected to described diode D19 simultaneously, the positive pole of D21, the other end W of the negative pole of described diode D32 and generator excitation winding L 3, the emitter of described triode Q11 is connected with the base stage of described triode Q13, and by resistance R 48 ground connection, the emitter of described triode Q13 is by resistance R 49 ground connection, the emitter of described triode Q13 is connected with the input of described exciting current sample circuit 5 simultaneously, the collector electrode of described triode Q13 connects the negative pole of diode D12, resistance R 37 and capacitor C 9 are connected in series between the collector electrode of the base stage of described triode Q9 and described triode Q13, the plus earth of described diode D32.
Described voltage sample circuit 1 is by resistance R 55, R56, R50, R62, R68, R76, adjustable resistance RP1, capacitor C 20 constitutes, described resistance R 56 is connected with capacitor C 20, the other end of resistance R 56 connects the output of rectification circuit 7 and an end of resistance R 50, described resistance R 56 is connected with resistance R 62 with the connected node of capacitor C 20, the other end ground connection of capacitor C 20, described resistance R 68, R76 connects with debugging resistance R P1, the other end ground connection of resistance R 76, the other end of resistance R 68 connects resistance R 50 simultaneously, the end of R62, the adjustable end of adjustable resistance RP1 is connected with second input of setting voltage comparison circuit 2.
The operation principle of the automatic magnetic exciting voltage regulator of described generator is: the output of adjusting circuit 10 at exciting current adds sample resistance R49, detect the exciting current of generator at the B point, send the rated exciting current value of comparator U1B and setting to compare through resistance R 5, when the exciting current overrate, comparator U1B output driving switch pipe Q2 conducting, capacitor C 2 is by switching tube Q2 discharge, comparator U1A output high level makes switching tube Q3 conducting, reduce the voltage of excitation voltage regulator voltage stabilizing comparison point A, make generator output be about the magnitude of voltage of 1/2nd or the step-down set of rated voltage.When switching tube Q2 ends, power supply VCC charges by 9 pairs of capacitor C 2 of resistance R, when comparator U1A inverting input voltage during greater than the voltage of comparator U1A in-phase input end, comparator U1A output low level, switching tube Q3 ends, the A point voltage returns to the set point of rated voltage output, generator output rated voltage.Adjust resistance R 9 and the value of capacitor C 2 and can adjust the time of decompression time-delay, usually in several seconds to tens second, to reach the purpose of reduced-voltage starting.
Claims (5)
1, a kind of generator automatic magnetic exciting voltage regulator, comprise rectification circuit (7), filter circuit of pressure-stabilizing (8), setting voltage circuit (9), voltage sample circuit (1), setting voltage comparison circuit (2), exciting current control circuit (3), field power supply current rectifying and wave filtering circuit (4), exciting current adjustment circuit (10)
The input of described rectification circuit (7) connects the main winding (L1) of generator, and the output of rectification circuit (7) connects the input of filter circuit of pressure-stabilizing (8) and the input of voltage sample circuit (1);
The output (VCC) of described filter circuit of pressure-stabilizing (8) connects the input of setting voltage circuit (9), and simultaneously, filter circuit of pressure-stabilizing (8) provides operating voltage for other circuit units;
The output of described setting voltage circuit (9) connects the first input end of setting voltage comparison circuit (2);
The output of described voltage sample circuit (1) connects second input of setting voltage comparison circuit (2);
The output of described setting voltage comparison circuit (2) connects the input of exciting current control circuit (3), the output of exciting current control circuit (3) connects the control end that exciting current is adjusted circuit (10), exciting current is adjusted an end of the input connection generator excitation winding (L3) of circuit (10), the other end of generator excitation winding (L3) connects the output of field power supply current rectifying and wave filtering circuit (4), and the input of field power supply current rectifying and wave filtering circuit (4) connects the auxiliary winding (L2) of generator;
It is characterized in that:
The input of described exciting current sample circuit (5) connects the output that exciting current is adjusted circuit (10), the output of exciting current sample circuit (5) connects the input of step-down delay control circuit (6), and the output of step-down delay control circuit (6) connects the first input end of setting voltage comparison circuit (2).
2, a kind of generator automatic magnetic exciting voltage regulator according to claim 1, it is characterized in that: described step-down delay control circuit (6) is by resistance (R3, R9～R14), electric capacity (C2), comparator (U1A), switching tube (Q2, Q3) constitute, one end of resistance (R14) connects the output of exciting current sample circuit (5), the other end of resistance (R14) connects the base stage of switching tube (Q2), resistance (R8) is connected between the base stage and emitter of switching tube (Q2), the grounded emitter of switching tube (Q2), the collector electrode of switching tube (Q2) connects the output (VCC) of filter circuit of pressure-stabilizing (8) by resistance (R9), simultaneously, the collector electrode of switching tube (Q2) connects the inverting input of comparator (U1A), and by electric capacity (C2) ground connection, resistance (R10) is connected in series with resistance (R11), the output (VCC) of one termination filter circuit of pressure-stabilizing (8) of resistance (R10), one end ground connection of resistance (R11), resistance (R10) is connected the in-phase input end of comparator (U1A) with the connected node of resistance (R11), the output of comparator (U1A) connects the base stage of switching tube (Q3) by resistance (R12), the grounded emitter of switching tube (Q3), resistance (R13) is connected between the base stage and emitter of switching tube (Q3), the collector electrode of switching tube (Q3) connects resistance (R3), and the other end of resistance (R3) connects the first input end of setting voltage comparison circuit (2).
3, a kind of generator automatic magnetic exciting voltage regulator according to claim 2, it is characterized in that: described exciting current sample circuit (5) is by resistance (R5, R6, R7), electric capacity (C1), comparator (U1B) constitutes, resistance (R5) is connected in series with electric capacity (C1), one end ground connection of electric capacity (C1), one end of resistance (R5) connects the output that exciting current is adjusted circuit (10), the connected node of resistance (R5) and electric capacity (C1) connects the in-phase input end of comparator (U1B), resistance (R6) is connected in series with resistance (R7), the output (VCC) of one termination filter circuit of pressure-stabilizing (8) of resistance (R6), one end ground connection of resistance (R7), resistance (R5) is connected the inverting input of comparator (U1B) with the connected node of resistance (R7), the output of comparator (U1B) connects the input of step-down delay control circuit (6).
4, according to claim 1 or 2 or 3 described a kind of generator automatic magnetic exciting voltage regulators, it is characterized in that: described exciting current is adjusted circuit (10) and is comprised triode (Q15, Q9, Q11, Q13), resistance (R36, R 37, R48, R49), electric capacity (C9), diode (D19, D21, D32), the base stage of described triode (Q15) connects the output of exciting current control circuit (3), the grounded emitter of described triode (Q15), the collector electrode of described triode (Q15) connects the base stage of described triode (Q9), and by an end (R) of resistance (R36) connection generator excitation winding (L3) and the negative pole of diode (D19), described triode (Q9, Q11) form Darlington transistor, the collector electrode of the collector electrode of described triode (Q9) and described triode (Q11) is connected to described diode (D19 simultaneously, D21) positive pole, the other end (W) of the negative pole of described diode (D32) and generator excitation winding (L3), the emitter of described triode (Q11) is connected with the base stage of described triode (Q13), and by resistance (R48) ground connection, the emitter of described triode (Q13) is by resistance (R49) ground connection, the emitter of described triode (Q13) is connected with the input of described exciting current sample circuit (5) simultaneously, the collector electrode of described triode (Q13) connects the negative pole of diode (D12), resistance (R37) and electric capacity (C9) are connected in series between the collector electrode of the base stage of described triode (Q9) and described triode (Q13), the plus earth of described diode (D32).
5, according to claim 1 or 2 or 3 described a kind of generator automatic magnetic exciting voltage regulators, it is characterized in that: described voltage sample circuit (1) comprises resistance (R56, R50, R62, R68, R76), adjustable resistance (RP1), electric capacity (C20), described resistance (R56) is connected with electric capacity (C20), the other end of resistance (R56) connects the output of rectification circuit (7) and an end of resistance (R50), described resistance (R56) is connected with resistance (R62) with the connected node of electric capacity (C20), the other end ground connection of electric capacity (C20), described resistance (R68, R76) connect with debugging resistance (RP1), the other end ground connection of resistance (R76), the other end of resistance (R68) connects resistance (R50 simultaneously, R62) a end, the adjustable end of adjustable resistance (RP1) is connected with second input of setting voltage comparison circuit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201264980U CN201365223Y (en) | 2009-02-27 | 2009-02-27 | Automatic excitation voltage regulator of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201264980U CN201365223Y (en) | 2009-02-27 | 2009-02-27 | Automatic excitation voltage regulator of generator |
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| Publication Number | Publication Date |
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| CN201365223Y true CN201365223Y (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201264980U Expired - Lifetime CN201365223Y (en) | 2009-02-27 | 2009-02-27 | Automatic excitation voltage regulator of generator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350725A (en) * | 2013-07-23 | 2013-10-16 | 重庆润通动力制造有限公司 | Multifunctional striding type mower |
| CN103595315A (en) * | 2013-11-25 | 2014-02-19 | 重庆卡滨通用机械有限公司 | Intelligent voltage regulating controller of small generator |
| CN105071724A (en) * | 2015-08-10 | 2015-11-18 | 北京佩特来电器有限公司 | Electronic voltage regulator, AC generator and engine idle speed control method |
| CN105484883A (en) * | 2016-01-15 | 2016-04-13 | 力帆实业(集团)股份有限公司 | Remote-control intelligent control generator set |
| CN108599644A (en) * | 2018-04-19 | 2018-09-28 | 苏州诺登德智能科技有限公司 | A kind of voltage-regulating system of automobile current generator |
| CN110932627A (en) * | 2019-12-17 | 2020-03-27 | 哈尔滨理工大学 | Automatic voltage regulation stabilizing device of diesel generator set |
| CN112688604A (en) * | 2020-12-16 | 2021-04-20 | 重庆虎溪电机工业有限责任公司 | Excitation voltage regulation controller and system for charging motor and use method |
-
2009
- 2009-02-27 CN CNU2009201264980U patent/CN201365223Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350725A (en) * | 2013-07-23 | 2013-10-16 | 重庆润通动力制造有限公司 | Multifunctional striding type mower |
| CN103595315A (en) * | 2013-11-25 | 2014-02-19 | 重庆卡滨通用机械有限公司 | Intelligent voltage regulating controller of small generator |
| CN103595315B (en) * | 2013-11-25 | 2016-01-20 | 重庆卡滨通用机械有限公司 | Small generator intelligent pressure regulating controller |
| CN105071724A (en) * | 2015-08-10 | 2015-11-18 | 北京佩特来电器有限公司 | Electronic voltage regulator, AC generator and engine idle speed control method |
| CN105071724B (en) * | 2015-08-10 | 2018-01-16 | 北京佩特来电器有限公司 | The method of electronic voltage controller, alternating current generator and Eng ine Idling Control |
| CN105484883A (en) * | 2016-01-15 | 2016-04-13 | 力帆实业(集团)股份有限公司 | Remote-control intelligent control generator set |
| CN108599644A (en) * | 2018-04-19 | 2018-09-28 | 苏州诺登德智能科技有限公司 | A kind of voltage-regulating system of automobile current generator |
| CN110932627A (en) * | 2019-12-17 | 2020-03-27 | 哈尔滨理工大学 | Automatic voltage regulation stabilizing device of diesel generator set |
| CN112688604A (en) * | 2020-12-16 | 2021-04-20 | 重庆虎溪电机工业有限责任公司 | Excitation voltage regulation controller and system for charging motor and use method |
| CN112688604B (en) * | 2020-12-16 | 2023-05-30 | 重庆虎溪电机工业有限责任公司 | Excitation voltage regulation controller, system and using method of charging motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091216 Effective date of abandoning: 20090227 |