CN100561857C - The power transformation system of sending out of multistage adjustment power - Google Patents
The power transformation system of sending out of multistage adjustment power Download PDFInfo
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- CN100561857C CN100561857C CNB2007100074700A CN200710007470A CN100561857C CN 100561857 C CN100561857 C CN 100561857C CN B2007100074700 A CNB2007100074700 A CN B2007100074700A CN 200710007470 A CN200710007470 A CN 200710007470A CN 100561857 C CN100561857 C CN 100561857C
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- power
- generator
- sending out
- transformation system
- wind
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Abstract
The power transformation system of sending out of multistage adjustment power extracts several taps out at the generator unit stator section of winding, through switch with have some transformer tappings and link to each other corresponding to generator tap voltage value, the power transformation system of sending out that can carry out multistage adjustment power output that forms, its characteristics will reduce when being incorporated into the power networks generator largely to the impulse current of electrical network, power grid operation is played a positive role, its power adjustment can not increase reactive power, this invention scheme is used for wind power generation will have more advantage, acquisition wind energy that can be in a big way, and simplify power generation system structure, thereby the minimizing initial investment reduces wind power cost.
Description
Technical field
What patent of the present invention related to is the power transformation system of sending out of multistage adjustment power.
Background technology
Electric power energy is secondary energy sources the most easily at present, no matter be burning, wind-force, waterpower, the nuclear fission energy all will be transformed to electric power energy, to make things convenient for the application of each every trade industry.And the power adjustment of existing generating, supply power mode is limited, the big difficulty of two when causing peak of power consumption and low power consumption.Electricity consumption surpasses the electrical network ability, can only solve problem by operating a switch, and low power consumption is necessary again to reduce energy output, or the many during this time electricity consumptions of price reduction encouragement user, gives and saves energy and reduce the cost, keeps the depollution of environment to bring certain difficulty.The existing power transformation system of sending out is that generator output is directly joined with the transformer input; can produce when being incorporated into the power networks and exceed rated current of generator 4-5 impulse current doubly; stable formation to electrical network necessarily threatens, even the network pressure drop is excessive, and the relaying protection action constitutes great power outage.Excessive impulse current also can reduce the length of service of generating equipment.
Summary of the invention
As required, generator unit stator three phase windings are drawn some taps, magnitude of voltage arbitrary decision as required between tap, but must be magnitude of voltage on the whole number of turn of coil.Power transformer is once drawn some taps corresponding to the voltage of generator tap place, connect by some switches are corresponding therebetween.Switch is monitored and is handled by computer and series sensor, changes according to electrical network and carries out the power adjustment, so that generator operates in optimum state all the time.
Concrete enforcement is example with the 1000KW electricity generation system now, and its principle is described, supposes 5 of its tappings, and voltage is to divide equally between its tap, works as Q
1Close a floodgate the A of generator 1
1, B
1, C
1With the A on winding 2 of transformer
1, B
1, C
1The corresponding connection.Generator will be presented the electric energy of generator 1/5th rated power to electrical network, output 200KW, rated current 4-5 doubly delayed time through certain hour when its impulse current that is incorporated into the power networks generation was 200KW power, increase according to the mechanical energy on electrical network needs and the input generator shaft, then start Q
2Switch, the A on the generator 1
2, B
2, C
2A on corresponding again and the transformation winding 2
2, B
2, C
2The corresponding connection.Electrical network will obtain 400KW input electric energy this moment, and its impulse current that impacts electrical network is 5-6 times of rated current when 200KW power only also, works as Q
2Treat A behind the combined floodgate
2, B
2, C
2Certain hour was delayed time after section dropped into the stabilization of power grids, just discharged Q
1, according to the electrical network needs, generator can be operated in A
1, B
1, C
1With A
n, B
n, C
nArbitrary section.Afterbody is incorporated into the power networks, and its impulse current also is only 800 kilowatts rated current+200KW4-5 times of rated current, and its impulse current is 1.6-1.8 a times of 1000KW rated current, and 4-5 more originally is doubly much smaller.
This method is used for thermoelectricity and water power, and is needn't classification meticulous, the 2-3 level all can, be used for wind power generation then can many branches what, reason is that wind resource is changeable.Conventional wind power generation, when wind power energy meets or exceeds the blower fan rated wind speed, then blower fan is with stall, and severe patient can vibrate even shut down, and makes machinery cause damage, take the chokes measure for overcoming this problem, lose energy, reduce load, make blower fan obtain the following wind energy of rated wind speed always, the prior art weak point: one, the wind energy that obtains can only be below the rated wind speed; Its two, will exhaust lot of materials and processing charges for reaching the mechanical measure that this purpose takes; Its three, complicated control system, a big cover system mirror survey wind speed, supervising devices such as wind wheel position, running, the increase initial stage drops into, and wind power cost is raised, and employing the present invention program then reaches easily when wind wheel stall and to increase the wind wheel load, thereby wind wheel speed is descended and withdraws from wind speed.Simplified wind power generation monitoring and control system greatly, and with the wider wind energy that obtains.
Another characteristics of this invention scheme, when low-power was exported, its generator power factor remained the same with full load, even also was higher than the power factor of full load.
3 is 2 windings of transformer among the figure, and its output enters electrical network.No matter be operated in which section, the input line voltage is constant.
Claims (1)
1, a kind of power transformation system of sending out of multistage adjustment power, it is characterized in that: constitute by the generator that has some stator coil tappings, the transformer that has some taps and some switches, tapping on the generator links to each other with switch respectively, the opposite side of switch, continuous with the corresponding voltage tap on the corresponding transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100074700A CN100561857C (en) | 2007-01-15 | 2007-01-15 | The power transformation system of sending out of multistage adjustment power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100074700A CN100561857C (en) | 2007-01-15 | 2007-01-15 | The power transformation system of sending out of multistage adjustment power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101005259A CN101005259A (en) | 2007-07-25 |
| CN100561857C true CN100561857C (en) | 2009-11-18 |
Family
ID=38704195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100074700A Expired - Fee Related CN100561857C (en) | 2007-01-15 | 2007-01-15 | The power transformation system of sending out of multistage adjustment power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100561857C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10570882B2 (en) | 2017-11-13 | 2020-02-25 | General Electric Company | Dynamic active and reactive power capability for wind farms |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734141A (en) * | 2015-03-05 | 2015-06-24 | 王金全 | Method for researching interaction mechanism between diesel generating sets and non-linear load |
| CN108501730B (en) * | 2018-05-28 | 2024-06-11 | 广东电网有限责任公司 | Braking energy recovery system and energy-saving automobile |
-
2007
- 2007-01-15 CN CNB2007100074700A patent/CN100561857C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10570882B2 (en) | 2017-11-13 | 2020-02-25 | General Electric Company | Dynamic active and reactive power capability for wind farms |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101005259A (en) | 2007-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Yazhou Document name: patent for invention |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20140115 |