CN101981807A - A power generating control method for a mobile power station and its generator group - Google Patents
A power generating control method for a mobile power station and its generator group Download PDFInfo
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- CN101981807A CN101981807A CN2009800004141A CN200980000414A CN101981807A CN 101981807 A CN101981807 A CN 101981807A CN 2009800004141 A CN2009800004141 A CN 2009800004141A CN 200980000414 A CN200980000414 A CN 200980000414A CN 101981807 A CN101981807 A CN 101981807A
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- generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
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- Control Of Eletrric Generators (AREA)
Abstract
A power generating control method includes the following steps: sampling a load input power signal at an input circuit terminal of the load, sampling a generator output power signal at an output circuit terminal of the generator, and inputting the two signals to a computer controller; receiving the two sampled signals, comparing the two signals, and sending out a control instruction to an oil supplying system of the mobile power station by the computer control system to control the add or subtract of the oil supplying quantity. The invention enables a mobile power station to supply power according load power in a rated power range; the mobile power station always works in the rated power range for meeting the requirement of load power operation; the power changes following change of the load power in the rated power range, thus preventing operation of the mobile power station when generated energy is greater than load requirement in a case of work of the mobile power station and reducing the fuel quantity.
Description
Technical field
The present invention relates to belong to the mobile power station technical field, specifically relate to a kind of control method that can regulate the mobile power station energy output, and relate to the use generating set that this method adopted.
Background technology
At present, known mobile power station generating set structure is made up of gasoline engine, diesel engine, generator, control system, change over switch, storage battery group, indicating instrument and installation skeleton base.Its operation principle is that gasoline engine, diesel engine, generator are installed in respectively on the skeleton base, drives generator by gasoline engine or diesel engine and comes work.But the electrical power of sending at the mobile power station generating set is during greater than bearing power, because alternating current can not store, the electric energy that the mobile power station generating set sends is far longer than the required electric energy of load, has caused energy waste.
Summary of the invention
The purpose of this invention is to provide a kind of electricity-generating control method that can adjust the mobile power station of generating electric weight, fuel-economizing, and a kind of generating set that uses this method is provided.
For achieving the above object, the present invention is by the following technical solutions:
Mobile power station electricity-generating control method among the present invention may further comprise the steps:
1. gather the load input power signal at the input circuit end of load, gather the power output signal of generator, and two signals are sent into computer control system at the output circuit end of generator;
2. computer control system is obtained two signals that collect, and two signals are compared, and sends the oil supply system of control command to mobile power station, is used for controlling the increase and decrease of fuel delivery.
Step 1. in, be the tach signal of generator at the signal of the output circuit end collection of generator.
Step 1. in, comprise the output current power signal of generator and the tach signal of generator at the signal of the output circuit end collection of generator.
Mobile power station generating set among the present invention comprises oil supply system, and above-mentioned oil supply system is connected with generator by computer control; Output at generator is provided with the generator output transducer, at the input of load the load input pickup is set, and above-mentioned generator output transducer all is connected with computer control with the load input pickup.
Above-mentioned generator output transducer is the generator speed transducer, and the load input pickup is current transformer II.
Above-mentioned generator output transducer can also be made up of generator speed transducer summation current transformer I, and the load input pickup is current transformer II.
Above-mentioned generator output transducer and load input pickup can also be current transformer.
On the circuit between generator and the load, be provided with frequency converter.
The output of above-mentioned generator is connected with switch switching circuit, and the output of switch switching circuit is divided into two-way, and the frequency converter of leading up to is connected to load; Another road is connected directly to load.
Above-mentioned switch switching circuit is connected with city's net generator set controller, and the input of city's net generator set controller links to each other with city's net supply network.
Above-mentioned switch switching circuit is made of three-position switch controller and switch.
Above-mentioned city's net generator set controller is connected with the load electricity leakage sensor.
Adopt the present invention of technique scheme, make the mobile power station generating set in the rated power scope, provide load required electric energy according to the bearing power size, the mobile power station generating set always works in and satisfies the bearing power operation in the rated power scope, the power of mobile power station generating set changes with bearing power in the rated power scope, because generating set power is with load variations, move under the situation of energy output greater than the loading demand amount when this has just prevented the work of mobile power station generating set, reduced amount of fuel.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is the control flow chart among the present invention.
Embodiment
Embodiment 1
Mobile power station electricity-generating control method among the present invention, it may further comprise the steps:
1. gather the load input power signal at the input circuit end of load, gather the power output signal of generator, and two signals are sent into computer control system at the output circuit end of generator; In the present embodiment, the signal of the output circuit end collection of generator is the tach signal of generator.
2. computer control system is obtained two signals that collect, and two signals are compared, and sends the oil supply system of control command to mobile power station, is used for controlling the increase and decrease of fuel delivery.The mechanical energy that the amount of fuel that oil supply system provides makes oil-burning machine pass to generator converts electric energy to and satisfies the required energy of load, the fuel delivery of oil-burning machine is decided by bearing power, and mobile power station generating set computer control system is adjusted the energy output of mobile power station generating set according to the size of bearing power.
Above-mentioned control flow in computer control system is: as shown in Figure 2, after computer control system gets access to two signal values, judge the size of two signal values.If the output of a generator signal value A that gathers at generator output circuit end is greater than the load input power signal value B that gathers at load input circuit end, then computer control system is sent control command to oil supply system, its fuel delivery is reduced, thereby reduction generator power, the electric weight that generator is sent equal the required electric weight of load.If the output of a generator signal value of gathering at generator output circuit end is less than the load input power signal value of gathering at load input circuit end, then computer control system is sent control command to oil supply system, its fuel delivery is increased, thereby raising generator power, the electric weight that generator is sent equal the required electric weight of load.Above-mentioned control procedure is a technology well known to those of ordinary skill in the art.
As shown in Figure 1, the mobile power station generating set among the present invention comprises oil supply system, and above-mentioned oil supply system is connected with generator 20 by computer control 12.Output at generator 20 is provided with generator output transducer 2, at the input of load load input pickup 11 is set, and above-mentioned generator output transducer 2 all is connected with computer control 12 with load input pickup 11.
In the present embodiment, generator output transducer 2 is the generator speed transducer, and load input pickup 11 is current transformer II.Because after generator output transducer 2 long-time the uses, transducer can produce the demagnetization phenomenon, so can regularly magnetize for transducer according to demagnetization curve.Those of ordinary skills' demagnetization curve that can draw according to the sensor model number that reality adopts, thus regularly magnetize for transducer, so above-mentioned technology is a technology well known to those of ordinary skill in the art.Load input pickup 11 can adopt current transformer II, because circuit is the interchange three-phase and four-line, thus a current transformer all is set in each line, and then four current transformers are linked together, thereby form load input pickup 11.In addition, for the purpose of convenient use and safety, can between generator 20 and load 10, switch 4a be set.
Among the present invention, oil supply system comprises gasoline engine 18, diesel engine 19, generator 20 and fuel feeding control oil servo tracking device 14, in generator 20, be provided with oil controller 17, wherein, fuel feeding control oil servo tracking device 14 and oil controller 17 are used for the size and the variation of sensing lead 10, go forward side by side line trace and control fuel delivery.Load input pickup 11 is gathered the size of loads 10 power, and generator output transducer 2 is gathered the size of output of a generator, and its signal is sent in the computer control 12 handle.Computer control 12 follow procedures compare two signal values, calculate load 10 power demands and the generator 20 actual differences of sending power, and this difference sent into fuel feeding control oil servo tracking device 14, finally being finished according to instruction by oil controller 17 increases fuel delivery or reduces fuel delivery oil-burning machine.The above-mentioned process of being handled and being analyzed by 12 pairs of data of computer control is a technology well known to those of ordinary skill in the art.
In Fig. 1, hand adjustment switch 15 is used for carrying out manually with automatically switching, and battery pack 16 is used for starting gasoline engine 18 or supplies mobile power station generating set control power supply.Above-mentioned gasoline engine 18, hand adjustment switch 15 and battery pack 16 are existing known technology.
Present embodiment as different from Example 1, in the present embodiment, step 1. in, comprise the output current power signal of generator and the tach signal of generator at the signal of the output circuit end collection of generator.So generator output transducer 2 is made up of generator speed transducer summation current transformer I, load input pickup 11 is current transformer II.
The other technologies feature is identical with embodiment 1.
Embodiment 3
Present embodiment in the present embodiment, is provided with frequency converter 13 as different from Example 1 on the circuit between generator 20 and the load.Above-mentioned frequency converter 13 is an ac-dc-ac frequency converter, and in the direct place in circuit, can make the power supply quality of output from generator 20 higher like this, is specially adapted to the power supply quality requirements than in the higher load.Owing to added the ac-dc-ac inverter device, so generator output transducer 2 and load input pickup 11 can be current transformer.
The operation principle of present embodiment is: the output of a generator signal value of gathering when generator output circuit end is during greater than the load input power signal value of gathering at load input circuit end, computer control system is sent control command to oil supply system, its fuel delivery is reduced, thereby reduction generator power, the electric weight that generator is sent equal the required electric weight of load.And in this course, because generator power reduces, thereby frequency also can be affected thereupon, so added frequency converter 13 between generator 20 and load 20, passes through the effect of frequency converter like this, and the frequency of output and load 20 are complementary.Above-mentioned frequency converter 13 technology are technology well known to those of ordinary skill in the art.
It is pointed out that the frequency output power frequency that frequency converter 13 can be according to actual needs or the power supply of intermediate frequency.
The other technologies feature is identical with embodiment 1.
Embodiment 4
Present embodiment as different from Example 3, in the present embodiment, the output of generator 20 is connected with switch switching circuit.As shown in Figure 1, the output of switch switching circuit is divided into two-way: the frequency converter 13 of leading up to is connected to load 10; Another road is connected directly to load 10.
Above-mentioned switch switching circuit is divided into two parts: the output circuit end at generator 20 is provided with two three- position switch controller 3a, 3b, input circuit end in load 20 also is provided with two three- position switch controller 3c, and 3d also is provided with switch 4a simultaneously on the circuit that is connected directly to load 10.
The operation principle of present embodiment is, if the power supply quality that load 10 needs is then all opened on-off controller 3a than higher, and 3b, 3c, 3d, off switch 4a, this moment, the electric current of generator 20 outputs entered load 10 through frequency converter 13.If 10 pairs of power supply qualities of load do not require, Close All on-off controller 3a then, 3b, 3c, 3d opens switch 4a, and this moment, the electric current of generator 20 outputs directly entered load 10.
It is pointed out that in the present embodiment, a three-position switch controller can all be set at the output circuit end of generator 20 and the input circuit end of load 20.
The other technologies feature is identical with embodiment 3.
Present embodiment as different from Example 4, in the present embodiment, above-mentioned switch switching circuit also is connected with city's net generator set controller 6, the input of city's net generator set controller 6 links to each other with city's net supply network 5.
Switch switching circuit in the present embodiment comprises: the output circuit end at generator 20 is provided with two three- position switch controller 3a, 3b, input circuit end in load 20 also is provided with two three- position switch controller 3c, and 3d also is provided with switch 4a simultaneously on the circuit that is connected directly to load 10; At two three-position switch controller 3e that the output of city's net generator set controller 6 is provided with, 3f also is provided with switch 4b at city's net generator set controller 6 to the circuit of load 10.
The operation principle of present embodiment is:
1. during city's net supply network 5 operate as normal, then do not need the mobile power station generating set.At this moment, if the power supply quality that load 10 needs is than higher, then three-position switch controller 3e is opened in 6 controls of city's net generator set controller, 3b, and 3d, 3c, remaining Close All, the electric weight of output enters load 10 through frequency converter 13 from city's net supply network 5 like this; If 10 pairs of power supply qualities of load do not require, then three-position switch controller 3f is opened in 6 controls of city's net generator set controller, 3c and switch 4b, and remaining Close All, the electric weight of output directly enters load 10 from city's net supply network 5 like this.
2. during city's net supply network 5 non-normal workings, need the mobile power station generating set.At this moment, if the power supply quality that load 10 needs is than higher, then three-position switch controller 3a is opened in 6 controls of city's net generator set controller, 3b, and 3c, 3d, remaining Close All, this moment, the electric current of generator 20 outputs entered load 10 through frequency converter 13; If 10 pairs of power supply qualities of load do not require, then open switch 4a, remaining Close All, this moment, the electric current of generator 20 outputs directly entered load 10.
The other technologies feature is identical with embodiment 4.
Present embodiment as different from Example 5, in the present embodiment, city's net generator set controller 6 is connected with load electricity leakage sensor 9, is used for controlling emergent accident.Instrument box 7, Displaying Meter 8 are used for showing the service data of mobile power station generating set, convenient monitoring in real time.
The other technologies feature is identical with embodiment 5.
Claims (12)
1. the electricity-generating control method of a mobile power station is characterized in that, it may further comprise the steps:
1. gather the load input power signal at the input circuit end of load, gather the power output signal of generator, and two signals are sent into computer control system at the output circuit end of generator;
2. computer control system is obtained two signals that collect, and two signals are compared, and sends the oil supply system of control command to mobile power station, is used for controlling the increase and decrease of fuel delivery.
2. the electricity-generating control method of mobile power station according to claim 1 is characterized in that: described step 1. in, be the tach signal of generator at the signal of the output circuit end collection of generator.
3. the electricity-generating control method of mobile power station according to claim 1 is characterized in that: described step 1. in, comprise the output current power signal of generator and the tach signal of generator at the signal of the output circuit end collection of generator.
4. mobile power station generating set that adopts the described method of claim 1, it comprises oil supply system, it is characterized in that: described oil supply system is connected with generator (20) by computer control (12); Output at described generator (20) is provided with generator output transducer (2), input in load is provided with load input pickup (11), and described generator output transducer (2) all is connected with computer control (12) with load input pickup (11).
5. mobile power station generating set according to claim 4 is characterized in that: described generator output transducer (2) is the generator speed transducer, and described load input pickup (11) is current transformer II.
6. mobile power station generating set according to claim 4 is characterized in that: described generator output transducer (2) is made up of generator speed transducer summation current transformer I, and described load input pickup (11) is current transformer II.
7. mobile power station generating set according to claim 4 is characterized in that: described generator output transducer (2) and load input pickup (11) are current transformer.
8. according to claim 6 or 7 described mobile power station generating sets, it is characterized in that: on the circuit between described generator (20) and the load (10), be provided with frequency converter (13).
9. according to claim 4,5,6,7, one of 8 described mobile power station generating sets, it is characterized in that: the output of described generator (20) is connected with switch switching circuit, the output of switch switching circuit is divided into two-way, and the frequency converter (13) of leading up to is connected to load (10); Another road is connected directly to load (10).
10. mobile power station generating set according to claim 9 is characterized in that: described switch switching circuit is connected with city's net generator set controller (6), and the input of city's net generator set controller (6) links to each other with city's net supply network (5).
11. mobile power station generating set according to claim 10 is characterized in that: described switch switching circuit is made of three-position switch controller (3) and switch (4).
12. mobile power station generating set according to claim 10 is characterized in that: described city's net generator set controller (6) is connected with load electricity leakage sensor (9).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/070221 WO2010083640A1 (en) | 2009-01-20 | 2009-01-20 | A power generating control method for a mobile power station and its generator group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101981807A true CN101981807A (en) | 2011-02-23 |
| CN101981807B CN101981807B (en) | 2013-02-13 |
Family
ID=42355483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980000414.1A Expired - Fee Related CN101981807B (en) | 2009-01-20 | 2009-01-20 | A power generating control method for a mobile power station and generator group thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101981807B (en) |
| WO (1) | WO2010083640A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532097A (en) * | 2012-07-05 | 2014-01-22 | 中国石油天然气集团公司 | Leakage protection device for mobile power generators |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094198A (en) * | 1993-04-22 | 1994-10-26 | 北京市西城区新开通用试验厂 | A kind of electric power supply on vehicle for field work |
| US6157175A (en) * | 1999-02-26 | 2000-12-05 | Aura Systems, Inc. | Mobile power generation system |
| CN200956561Y (en) * | 2006-09-26 | 2007-10-03 | 石家庄国耀电子科技有限公司 | Variable frequency generator controller |
| CN201181925Y (en) * | 2008-02-27 | 2009-01-14 | 王雪霖 | Automatic speed-changing constant-frequency constant-voltage diesel generating set |
-
2009
- 2009-01-20 CN CN200980000414.1A patent/CN101981807B/en not_active Expired - Fee Related
- 2009-01-20 WO PCT/CN2009/070221 patent/WO2010083640A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532097A (en) * | 2012-07-05 | 2014-01-22 | 中国石油天然气集团公司 | Leakage protection device for mobile power generators |
| CN103532097B (en) * | 2012-07-05 | 2016-12-21 | 中国石油天然气集团公司 | A kind of mobile generator earth leakage protective device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010083640A1 (en) | 2010-07-29 |
| CN101981807B (en) | 2013-02-13 |
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