CN102857168A - Generator capable of continuously adjusting voltage - Google Patents
Generator capable of continuously adjusting voltage Download PDFInfo
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- CN102857168A CN102857168A CN2012103538337A CN201210353833A CN102857168A CN 102857168 A CN102857168 A CN 102857168A CN 2012103538337 A CN2012103538337 A CN 2012103538337A CN 201210353833 A CN201210353833 A CN 201210353833A CN 102857168 A CN102857168 A CN 102857168A
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Abstract
The invention relates to a generator capable of continuously adjusting a voltage. The continuous voltage regulation is directly realized by the generator without a transformer; a power supply is connected with a controller, the controller is connected with a magnet exciting coil in an engine, the magnet exciting coil part of the engine is controlled by the controller, and the exciting voltage change of the magnet exciting coil of the generator is changed by the controller, so that the output voltage of the generator is changed; and the voltage of 12-100 V is input into the magnet exciting coil by the controller, and a range of the continuous voltage regulation of the generator is 100-1000 V of direct current DC or 100-730 V of alternating current AC. According to the generator capable of continuously adjusting the voltage, the voltage stabilization effect is good, the control amplitude is large, the shortage that the output voltage of the generator only can be regulated by the transformer in the prior art is overcome, the transformer part which takes 70% of weight of an original device is omitted, and the device is more conveniently relocated and moved; and the regulation is controlled by a constant voltage or a constant current, the precise power supplying is realized, the requirements of field electrical prospecting is met, the structure is simple, the operation is convenient, and the improvement to the prior art is benefitted.
Description
Technical field
The present invention relates to International Classification of Patents H01F transformer, H02J power supply or the circuit arrangement of distribution or control or the regulation technology field of system, H02K motor, H01P resonator or H02P dynamo-electric converter, but especially a kind of generator of continuous voltage regulating.
Background technology
In the prior art, the Voltage-output of mobile generator is fixing 220V or 380V standard, and the size according to electric current is determined its generator power, but, for day by day using in the widely open-air electrical measuring instrument, use, often need to require and in time to regulate supply power voltage according to difference, in view of the situation, currently used is that the generator connection transformer is regulated, heavy inconvenient, particularly when output power is larger, transformer equipment requires investment and maintenance cost and weight all huge, cause work very inconvenient, as seen, the mode that this dependence transformer carries out voltage-regulation is unsatisfactory.
In the prior art, the effect of existing voltage regulator is that voltage stabilization that generator is sent is in certain scope, mostly traditional voltage regulator is to adopt a controllable silicon, or two controllable silicons are controlled respectively adjustment single phase permanent-magnet generator output voltage, voltage regulation result is relatively poor, particularly when high rotating speed, can not satisfy the needs of practical application to the control effect of alternating current component.For three-phase permanent magnet electricity generator, need special-purpose three-phase permanent magneto voltage adjuster.Voltage regulator circuit generally comprises voltage regulator, voltage regulator is connected to the output of rectifier bridge by the detection signal pin, with the output voltage of detection alternating current generator, and and then be able to control the duty ratio of magnet exciting coil with the output voltage of further adjusting alternating current generator according to detected voltage.
The at present common detection signal pin at voltage regulator is understood the design of further arrange in pairs or groups resistance R 1 and R2, detects the output voltage that alternating current generator is exported through rectifier bridge in order to the principle with electric resistance partial pressure.So voltage regulator just can be with the detection voltage V that detects
SCompare and do voltage adjustment control with the reference voltage of inside, namely work as this detection voltage V that detects
SWhen lower than this reference voltage, voltage regulator will be controlled increases the duty ratio of this magnet exciting coil; Otherwise then the duty ratio of this magnet exciting coil is reduced, to reach the purpose of adjusting voltage and burning voltage.The partial pressure value that change resistance R 1 and R2 produce just can change the detection voltage V that voltage regulator receives
S, and then the output voltage that alternating current generator is exported through rectifier bridge is changed in control; So, detect voltage V by changing
SValue and make the voltage regulator can be according to the different demands of the output voltage of alternating current generator, for example different vehicle-mounted specifications just has different voltage requirements; But because the change of resistance R 1 and R2 is only can change when the voltage regulator circuit front end is produced, another design then is to adopt variable resistor to replace resistance R 1 and R2 originally.Yet for using the rear end, the designed voltage regulator circuit that goes out of above-mentioned design all is to belong to fixed voltage regulator circuit or semi-fixed type voltage regulator circuit; Thus, just existing used voltage regulator circuit can't be along with according to different vehicle conditions, such as underloading, heavy duty, high temperature, low temperature, idling, the situation such as overtake other vehicles, and easily and immediately carry out the adjustment of output voltage.So, further develop in the market the design of another voltage regulator circuit, utilize exactly specific function integrated circuit (ASIC) to replace originally voltage regulator, or voltage regulator design with the mode of single microprocessor.And its method exactly can be further receives outside control changing inner reference voltage by communication protocol (Communication Protocol), and reaches the purpose of adjusting output voltage; But if use the design of ASIC, cost and time that it need to cost a lot of money develop; And if design in the mode of single microprocessor, then microprocessor must be controlled the stable of voltage regulator on the one hand, to detect at any time and judge the reference voltage setting signal that the outside sends on the other hand, so can cause whole stability meeting relatively poor.
For improving targetedly technology, less to pertinent literature from the published Searches of Patent Literature, such as Chinese patent application number 200810095697 adjustable voltage regulation circuits and How It Works thereof, wherein this adjustable voltage regulation circuit is feedback circuit, the output voltage of exporting in order to regulate vehicle-mounted alternating current generator, it comprises: bleeder circuit, voltage modulation element, microprocessor and voltage regulator.Wherein, bleeder circuit receives the formed feedback voltage of output voltage, and calculates to produce detection voltage via dividing potential drop, and the voltage modulation element connects bleeder circuit.Microprocessor connects the voltage modulation element, controls the running of voltage modulation element in order to receive the external setting-up signal, and this detects voltage with further adjustment.Voltage regulator then is to connect bleeder circuit, reaches target voltage values in order to carry out regulation output voltage according to this detection voltage.
Chinese patent application 200720140617 three-phase permanent magneto voltage adjusters and for example.On three stator coils of generator, respectively connect a voltage-regulating circuit, described voltage-regulating circuit comprises rectifier diode and the one-way SCR that is connected in parallel on the stator coil output, the sample circuit that is connected in parallel on the load output, the control utmost point of one-way SCR is connected to the output of voltage sampling circuit, and the input of voltage sampling circuit is connected to sample circuit.
Chinese patent application 200710172559 intelligent regulate and control system for rare-earth permanent magnet generator.This system is by single-chip microcomputer, relay group, high-power switch device group, servomotor and correlation function the electric circuit constitute; System is connected to collect generator parameter by binding post with the winding of the rare earth permanent-magnetic generator of outside, and controls output rated voltage and frequency by relay group and high-power switch device group; Described internal system connects by circuit and setting is respectively equipped with again three large functional circuit groups: regulating circuit, frequency adjustment circuit and protective circuit.In this invention, the magnetic field of rare earth permanent-magnetic generator is the permanent-magnetic field that is provided by rare earth magnetic steel, and this magnetic field does not resemble the common electrical excitation generator that works regulates and control magnetic field intensity to keep the basicly stable of output voltage by the size of regulating exciting current.Rare earth permanent-magnetic generator is normally driven by compact internal combustion engine, and along with the increase of load, the rotating speed of prime mover will descend, thereby generator output voltage and frequency are also and then descended.After the load, have electric current to pass through in the stator winding on the generator band, will produce armature reaction, this also can make generator output voltage descend.Therefore there is not the rare-earth generator of regulation device from zero load to fully loaded, its voltage, frequency change are all larger, and about ± 10%, frequency change is also about 6% usually for the pressure regulation rate, can not satisfy most of users' requirement, have a strong impact on promoting the use of of rare earth permanent-magnetic generator.In order to reduce floating voltage, improve the pressure regulation rate, reduce frequency fluctuation, also can adopt the way of the internal combustion engine of configuration larger horsepower, along with the increase of load, the high-power internal-combustion engine rotational speed will descend few like this, and voltage and frequency are also fallen lessly with regard to corresponding.Turn down simultaneously the specified output of generator, make as far as possible that voltage remains on rated voltage when specified output.The principle of this invention is subject to some inventor's concern and reference.Although by sacrificing generator efficiency, the pressure regulation rate of rare-earth generator group is brought up to ± about 5%, frequency change is about 4%, but will further improve the cost of rare-earth generator group like this, also improved daily operating cost, offset the high energy-conservation advantage of rare-earth generator efficient, most users are difficult to accept especially.
Chinese patent application 201010152670 Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiaries, the coarse adjustment winding Wc and the fine tuning winding Wt that it is characterized in that main transformer realize multi-stage coarse and fine continuous pressure by on load tap changer, and power to the high pressure winding W5 of series transformer; The low pressure winding W6 of the low pressure winding W4 of main transformer and series transformer is connected in series electric, forms the secondary side of transformer.This invention primary side, secondary side and three sides are isolated on electric mutually, capacity coefficient is 1.5, and the capacity coefficient of step-down self coupling circuit is 1.75, and the capacity coefficient of the circuit that falls progressively is 2, it is said to realize multi-stage coarse and fine continuous pressure from 48 grades to 107 grades.
In a word, present generator output voltage mainly with transformer as the pressure regulation stabilizer, just in an adjusting that is among a small circle stable output voltage, therefore, but design can be on a large scale the output voltage technology of continuous setup alternating current generator, just can remedy the deficiency of prior art.
Summary of the invention
But goal of the invention of the present invention is to provide a kind of generator of continuous voltage regulating, and this generator can be at direct regulation output voltage in a big way, and no longer needs to be used transformer and adjust voltage.
Realize that goal of the invention measure of the present invention is: need not transformer, directly realize the continuous voltage adjusting by generator, power supply is connected with controller, this controller is connected with magnet exciting coil in the engine, the magnet exciting coil part of generator is controlled by controller, controller changes by the exciting voltage that changes dynamo field coil, thereby changes the output voltage of generator; The voltage of controller input 12-100V is to magnet exciting coil, and generator continuous voltage regulating scope is at direct current DC 100～1000V or exchange AC 100～730V.
The invention has the advantages that, be connected with magnet exciting coil in the engine by controller that tool stability, fail safe and applicability can reach the purpose that can immediately adjust the output voltage of alternating current generator; Voltage regulation result is good, and span of control limit of control is large, omits the weight of traditional transformer 70% part, and it is mobile more to be convenient to resettlement; By constant voltage or constant flow regulation control, can realize accurate power supply, satisfy the demand of open-air electrical prospecting, can realize that 100-1000V can regulate direct current output.Simple in structure, easy to operate, be convenient to prior art is improved.
Description of drawings
Fig. 1 realizes the continuously adjustable design principle of generator voltage and syndeton schematic diagram among the present invention
Fig. 2 is modular structure figure in the middle controller circuit of the present invention
Fig. 3 is the job step figure that embodiment 1 exports for the rear generation of direct current DC12V input adjustable voltage among the present invention
Fig. 4 is the circuit diagram among the embodiment 1
Embodiment
Below further specify by drawings and Examples.
As shown in Figure 1, power supply is connected with controller, and this controller is connected with magnet exciting coil in the engine.
The present invention is directed to common generator, need not transformer, directly realize the continuous voltage adjusting by generator, power supply is connected with controller, this controller is connected with magnet exciting coil in the engine, the magnet exciting coil part of generator is by controller control, and controller changes by the exciting voltage that changes dynamo field coil, thereby changes the output voltage of generator; The voltage of controller input 12-100V is to magnet exciting coil, generator continuous voltage regulating scope is at direct current DC 100～1000V or exchange AC 100～730V, wherein, can reach the output of 1000V direct current such as maximum behind the rectifying and wave-filtering, satisfy the requirement of the maximum 1000V direct current output of electrical prospecting instrument, and omitted heavy transformer portion, significantly alleviated field work intensity.
In aforementioned, as shown in Figure 2, controller comprise direct current DC input, DC-AC modular converter, every go straight up to die block, power amplification circuit, boost rectification and adjustable dc voltage output module, the DC-AC modular converter with every go straight up to die block, power amplification circuit, boost rectification module and output module be connected in series successively; After being direct current DC input, through the DC-AC modular converter, every going straight up to die block, power amplification circuit, the rectification of boosting again is by output module output adjustable voltage.
As embodiment 1: as shown in Figure 3, power supply input direct-current DC12V is to controller, the magnet exciting coil part of generator is controlled by controller, controller output 25V-100V adjustable dc voltage is to dynamo field coil, the exciting voltage that changes dynamo field coil changes, thereby changes the output voltage of generator; Make generator output phase voltage between 100-421V, total voltage is between 100-730V, and maximum can reach the output of 1000V direct current behind the rectifying and wave-filtering.
As shown in Figure 3, the present embodiment workflow comprises: direct current DC12V voltage transfers ac voltage signal to through the DC-AC modular converter, by every going straight up to die block ac voltage signal being amplified and filtering flip-flop, process power amplification circuit and boost rectifying circuit obtain the 25V-100V adjustable dc voltage and output to dynamo field coil again, adjust the continuous voltage regulating output of generator by the power that changes magnet exciting coil again.
In the present embodiment, as shown in Figure 4, controller comprise direct current DC input, DC-AC modular converter, every go straight up to die block, power amplification circuit, rectification and adjustable dc voltage output module boost, adopt 9c3628CMOS as processing unit in the DC-AC modular converter wherein, finish filter in employing diode D1, D2 and inductive coupling elements T 3 in going straight up to die block and go straight up to pressure, after in power amplification, boost rectifying circuit, adopting three grades of adjustable coupling windings of two-way Q3-Q8 to connect the U2-U5 rectification, by J3, J4 output in the output module.
The present invention omits the weight of traditional transformer 70% part, and it is mobile more to be convenient to resettlement; By constant voltage or constant flow regulation control, can realize accurate power supply, satisfy the demand of open-air electrical prospecting, can realize that 100-1000V can regulate direct current DC output.
In above embodiment, do not reach the employing prior aries such as other necessary technologies that relate to enforcement of narration, enumerate no longer successively detailed description.
Claims (4)
1. but the generator of continuous voltage regulating, it is characterized in that: need not transformer, directly realize the continuous voltage adjusting by generator, power supply is connected with controller, this controller is connected with magnet exciting coil in the engine, the magnet exciting coil part of generator is by controller control, and controller changes by the exciting voltage that changes dynamo field coil, thereby changes the output voltage of generator; The voltage of controller input 12-100V is to magnet exciting coil, and generator continuous voltage regulating scope is at direct current DC 100～1000V or exchange AC 100～730V.
2. but the generator of continuous voltage regulating as claimed in claim 1, it is characterized in that, controller comprise direct current DC input DC-AC modular converter, every go straight up to die block, power amplification circuit, rectification and adjustable dc voltage output module boost, after being direct current DC input, through the DC-AC modular converter, every going straight up to die block, power amplification circuit, the rectification of boosting again is by output module output adjustable voltage.
3. but the generator of continuous voltage regulating as claimed in claim 1, it is characterized in that, power supply input direct-current DC12V is to controller, the magnet exciting coil part of generator is controlled by controller, controller output 25V-100V adjustable voltage is to dynamo field coil, the exciting voltage that changes dynamo field coil changes, thereby changes the output voltage of generator; Make generator output phase voltage between 100-421V, total voltage is exchanging between 100-730V.
4. but the generator of continuous voltage regulating as claimed in claim 1, it is characterized in that, controller comprises direct current DC input, the DC-AC modular converter, every going straight up to die block, power amplification circuit, rectification and adjustable dc voltage output module boost, adopt 9c3628CMOS as processing unit in the DC-AC modular converter wherein, in going straight up to die block, adopting diode D1, D2 and inductive coupling elements T 3 are finished filter and are gone straight up to pressure, in power amplification, after adopting three grades of adjustable coupling windings of two-way Q3-Q8 to connect the U2-U5 rectification in the boost rectifying circuit, by J3 in the output module, J4 output.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103538337A CN102857168A (en) | 2012-09-21 | 2012-09-21 | Generator capable of continuously adjusting voltage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103538337A CN102857168A (en) | 2012-09-21 | 2012-09-21 | Generator capable of continuously adjusting voltage |
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| CN102857168A true CN102857168A (en) | 2013-01-02 |
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| CN2012103538337A Pending CN102857168A (en) | 2012-09-21 | 2012-09-21 | Generator capable of continuously adjusting voltage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115694274A (en) * | 2022-03-21 | 2023-02-03 | 中建八局第二建设有限公司 | Method for improving excitation mode of data center generator set |
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|---|---|---|---|---|
| CN201054560Y (en) * | 2007-05-01 | 2008-04-30 | 襄樊新网联网络科技有限公司 | Preliminary control excitation device for excitation transformer 400V low-voltage water turbine electromotor |
| CN102130644A (en) * | 2011-04-21 | 2011-07-20 | 阳光电源股份有限公司 | Exciting method, device and system of direct-current brushless synchronous wind driven generator |
| CN202004714U (en) * | 2011-04-21 | 2011-10-05 | 阳光电源股份有限公司 | Wind-driven power generating system and excitation unit of direct-current brushless synchronous wind-driven power generator |
| CN102355190A (en) * | 2011-09-01 | 2012-02-15 | 浙江省电力试验研究院 | Parameter setting method for voltage regulator of power system |
-
2012
- 2012-09-21 CN CN2012103538337A patent/CN102857168A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054560Y (en) * | 2007-05-01 | 2008-04-30 | 襄樊新网联网络科技有限公司 | Preliminary control excitation device for excitation transformer 400V low-voltage water turbine electromotor |
| CN102130644A (en) * | 2011-04-21 | 2011-07-20 | 阳光电源股份有限公司 | Exciting method, device and system of direct-current brushless synchronous wind driven generator |
| CN202004714U (en) * | 2011-04-21 | 2011-10-05 | 阳光电源股份有限公司 | Wind-driven power generating system and excitation unit of direct-current brushless synchronous wind-driven power generator |
| CN102355190A (en) * | 2011-09-01 | 2012-02-15 | 浙江省电力试验研究院 | Parameter setting method for voltage regulator of power system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115694274A (en) * | 2022-03-21 | 2023-02-03 | 中建八局第二建设有限公司 | Method for improving excitation mode of data center generator set |
| CN115694274B (en) * | 2022-03-21 | 2024-06-14 | 中建八局第二建设有限公司 | Method for improving excitation mode of generator set of data center |
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Application publication date: 20130102 |