CN108443021A - A kind of starter of gas turbine generator system - Google Patents
A kind of starter of gas turbine generator system Download PDFInfo
- Publication number
- CN108443021A CN108443021A CN201810222575.6A CN201810222575A CN108443021A CN 108443021 A CN108443021 A CN 108443021A CN 201810222575 A CN201810222575 A CN 201810222575A CN 108443021 A CN108443021 A CN 108443021A
- Authority
- CN
- China
- Prior art keywords
- generator
- main
- gas turbine
- starter
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007858 starting material Substances 0.000 title claims abstract description 36
- 230000005284 excitation Effects 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims description 67
- 239000000567 combustion gas Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/268—Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
- F02C7/275—Mechanical drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
A kind of starter of gas turbine generator system, belongs to motor application technical field, and the starting device for solving existing gas turbine generator system disengages the problem of work difficulty is big, and time-consuming.Starter of the present invention：Permanent magnet generator, main exciter, main generator and gas turbine link successively.When system starts, permanent magnet generator provides the mechanical energy needed for work for the main exciter that is excited, and main exciter is main generator excitation and provides mechanical energy needed for work, and main generator supplying power for outside simultaneously provides starting torque for the rotor of gas turbine.After system starts, gas turbine provides mechanical energy needed for work for main generator, main generator provides mechanical energy needed for work for main exciter, main exciter provides mechanical energy needed for work for permanent magnet generator, permanent magnet generator is main exciter excitation, main exciter is main generator excitation, main generator supplying power for outside.Starter of the present invention is suitable for the startup of gas turbine generator system.
Description
Technical field
The present invention relates to a kind of starters of generator system, belong to motor application technical field.
Background technology
In recent years, it is received due to gas turbine starts that the fast, thermal efficiency is high and environmental pollution small many advantages, such as because having
Vast electric power enterprise is more and more paid close attention to.When gas turbine is for when generating electricity, gas turbine generator to be constituted with generating set
System.
The host of gas turbine includes compressor, combustion chamber and combustion gas turbine.Compressor is used for by externally input machine
Air is compressed and inputs combustion chamber by tool work(.Combustion gas turbine is used for the high temperature and high pressure gas that exports combustion chamber as working medium, and
Its thermal energy is converted to mechanical energy, to export mechanical work to generating set.
In gas turbine normal operation, compressor is driven by combustion gas turbine.In general, combustion gas turbine exports
The 2/3 of power will be used for dragging compressor, remaining 1/3 power is as output power.This there is a problem：In combustion gas wheel
During machine starts, when the output power of combustion gas turbine is not enough to dragging compressor before igniting and after igniting, it is necessary to
The rotor of unit is dragged by the power outside gas turbine host.In other words, the startup of gas turbine must be dynamic by outside
Power equipment.However, after gas turbine normally starts, external impetus equipment is needed to disengage.The disengagement of external impetus equipment
Work has larger difficulty, needs operating personnel to have stronger professional skill, and take longer.
Invention content
The present invention be solve existing gas turbine generator system starting device disengage work difficulty it is big, what time-consuming asks
A kind of topic, it is proposed that starter of gas turbine generator system.
The starter of gas turbine generator system of the present invention, gas turbine generator system include main generator 3
With gas turbine 4, the starter includes permanent magnet generator 1 and main exciter 2；
Permanent magnet generator 1, main exciter 2, main generator 3 and gas turbine 4 link successively；
When gas turbine generator system starts, the permanent magnet generator 1 of motor working condition is used for the main excitation to be excited
Machine 2 provides the mechanical energy needed for work, and main exciter 2 is used for as 3 excitation of main generator and provides mechanical energy needed for work,
Rotor of the main generator 3 for gas turbine 4 while supplying power for outside provides starting torque；
After the startup of gas turbine generator system, gas turbine 4 is used to provide mechanical energy needed for work for main generator 3,
Main generator 3 is used to provide mechanical energy needed for work for main exciter 2, and main exciter 2 is used to send out for the permanent magnetism of generator operating mode
Motor 1 provides mechanical energy needed for work, and the permanent magnet generator 1 of generator operating mode is used to be 2 excitation of main exciter, main exciter 2
For for 3 excitation of main generator, 3 supplying power for outside of main generator.
As preferably, for permanent magnet generator 1, main exciter 2, main generator 3 and gas turbine 4, the former is with after
Person is coaxially disposed by shaft coupling 5.
As preferably, the permanent magnet generator 1 of motor working condition is connected by the first frequency converter 6 with power grid, Huo Zhetong
It crosses the first frequency converter 6 and inverter is connected with DC power supply.
As preferably, the permanent magnet generator 1 of generator operating mode is 2 excitation of main exciter by the second frequency converter 7.
As preferably, when permanent magnet generator 1 is in motor working condition, main exciter 2 is by power grid through third frequency conversion
Device 8 is its excitation.
As preferably, main generator 3 is connected by the 4th frequency converter 9 with power grid.
As preferably, the rotor and stator of permanent magnet generator 1 are respectively permanent magnet and winding.
As preferably, the rotor and stator of main exciter 2 are winding.
As preferably, the rotor of main exciter 2 is connect with the rotor electrical of main generator 3.
As preferably, the starter further includes electric machine controller 10, and electric machine controller 10 is electronic for controlling
The permanent magnet generator 1 of machine operating mode.
The operation principle of the starter of gas turbine generator system of the present invention is：
When gas turbine generator system starts, permanent magnet generator 1 be motor working condition, the rotor of permanent magnet generator 1 with
By the rotor linkage of the main exciter 2 of external power supply excitation, main exciter 2 is 3 excitation of main generator, the rotor of main exciter 2
It linking with the rotor of main generator 3,3 supplying power for outside of main generator, the rotor of main generator 3 links with the rotor of gas turbine 4,
Realize the startup of gas turbine.
After the startup of gas turbine generator system, permanent magnet generator 1 is switched to generator operating mode, cuts off main exciter 2
External field power supply, at this point, the rotor and permanent magnet generator of the rotor of gas turbine 4, the rotor of main generator 3, main exciter 2
The rotor of machine 1 links successively.Permanent magnet generator 1 is 2 excitation of main exciter, and main exciter 2 is 3 excitation of main generator, main power generation
3 supplying power for outside of machine.
From above-mentioned operation principle：Gas turbine generator system is started using starter of the present invention
Later, it is not necessarily to disengage the starter and gas turbine generator system.Therefore, gas turbine generator system of the present invention
The starting device disengagement work difficulty that the starter of system can efficiently solve existing gas turbine generator system is big, and time-consuming
The problem of.
Description of the drawings
The startup to gas turbine generator system of the present invention will hereinafter be carried out based on the embodiments and with reference to the accompanying drawings
Device is described in more detail, wherein：
Fig. 1 be embodiment described in gas turbine generator system starter structural schematic diagram, wherein K1, K2 and
K3 is switch.
Specific implementation mode
The starter of gas turbine generator system of the present invention is further illustrated below in conjunction with attached drawing.
Embodiment：The present embodiment is explained in detail with reference to Fig. 1.
The starter of gas turbine generator system described in the present embodiment, gas turbine generator system include main generator
3 and gas turbine 4, the starter include permanent magnet generator 1 and main exciter 2；
Permanent magnet generator 1, main exciter 2, main generator 3 and gas turbine 4 link successively；
When gas turbine generator system starts, the permanent magnet generator 1 of motor working condition is used for the main excitation to be excited
Machine 2 provides the mechanical energy needed for work, and main exciter 2 is used for as 3 excitation of main generator and provides mechanical energy needed for work,
Rotor of the main generator 3 for gas turbine 4 while supplying power for outside provides starting torque；
After the startup of gas turbine generator system, gas turbine 4 is used to provide mechanical energy needed for work for main generator 3,
Main generator 3 is used to provide mechanical energy needed for work for main exciter 2, and main exciter 2 is used to send out for the permanent magnetism of generator operating mode
Motor 1 provides mechanical energy needed for work, and the permanent magnet generator 1 of generator operating mode is used to be 2 excitation of main exciter, main exciter 2
For for 3 excitation of main generator, 3 supplying power for outside of main generator.
The permanent magnet generator 1 of the present embodiment and main exciter 2, main exciter 2 and main generator 3 and main generator 3 with
Gas turbine 4 is coaxially disposed by shaft coupling 5.
When permanent magnet generator 1 is in motor working condition, permanent magnet generator 1 is connected by the first frequency converter 6 with power grid.
When permanent magnet generator 1 is in motor working condition, main exciter 2 is its excitation through third frequency converter 8 by power grid.
When permanent magnet generator 1 is in generator operating mode, permanent magnet generator 1 is that main exciter 2 is encouraged by the second frequency converter 7
Magnetic.
The main generator 3 of the present embodiment is connected by the 4th frequency converter 9 with power grid.
The rotor and stator of the permanent magnet generator 1 of the present embodiment are respectively permanent magnet and winding.
The rotor and stator of the main exciter 2 of the present embodiment are winding.
The rotor of the main exciter 2 of the present embodiment is connect with the rotor electrical of main generator 3.
The starter of gas turbine generator system described in the present embodiment further includes electric machine controller 10, electric machine controller
10 permanent magnet generator 1 for controlling motor working condition.
For the starter of the gas turbine generator system described in the present embodiment, after 4 stable operation of gas turbine, forever
Magnetic generator 1 is 2 excitation of main exciter by the second frequency converter 7, and main exciter 2 is disconnected with power grid, does not need power grid offer and encourages
Magnetic.
Gas turbine generator system equipped with the starter described in the present embodiment have size it is small, it is light-weight, with small vibration,
It operates steadily many advantages, such as high with efficiency ratio.
Gas turbine generator system equipped with the starter described in the present embodiment is not necessarily to the external subsidiary engine directly driven, knot
Structure has obtained maximum simplification, and system reliability is greatly improved.
The starter of gas turbine generator system described in the present embodiment is easily installed and operates, and has higher automatic
Change horizontal.Compared with the external subsidiary engine started for gas turbine, the cost of the starter substantially reduces.
Although describing the present invention herein with reference to specific embodiment, it should be understood that, these realities
It is the example of principles and applications to apply example only.It should therefore be understood that can be permitted exemplary embodiment
More modifications, and can be designed that other arrangements, spirit without departing from the present invention as defined in the appended claims and
Range.It should be understood that can be by combining different appurtenances different from mode described in original claim
It is required that and feature described herein.It will also be appreciated that the feature in conjunction with described in separate embodiments can be used at it
In his embodiment.
Claims (10)
1. a kind of starter of gas turbine generator system, gas turbine generator system includes main generator (3) and combustion gas wheel
Machine (4), which is characterized in that the starter includes permanent magnet generator (1) and main exciter (2)；
Permanent magnet generator (1), main exciter (2), main generator (3) and gas turbine (4) link successively；
When gas turbine generator system starts, the permanent magnet generator (1) of motor working condition is used for the main exciter to be excited
(2) mechanical energy needed for work is provided, main exciter (2) is used for as the machine needed for main generator (3) excitation and offer work
Tool energy, rotor of the main generator (3) for gas turbine (4) while supplying power for outside provide starting torque；
After the startup of gas turbine generator system, gas turbine (4) is used to provide mechanical energy needed for work for main generator (3),
Main generator (3) is used to provide mechanical energy needed for work for main exciter (2), and main exciter (2) is used for as generator operating mode
Permanent magnet generator (1) provides mechanical energy needed for work, and the permanent magnet generator (1) of generator operating mode is used to encourage for main exciter (2)
Magnetic, main exciter (2) are used to be main generator (3) excitation, main generator (3) supplying power for outside.
2. the starter of gas turbine generator system as described in claim 1, which is characterized in that for permanent magnet generator
(1), main exciter (2), main generator (3) and gas turbine (4), the former with the latter are coaxially disposed by shaft coupling (5).
3. the starter of gas turbine generator system as claimed in claim 2, which is characterized in that the permanent magnetism of motor working condition
Generator (1) is connected by the first frequency converter (6) with power grid, or passes through the first frequency converter (6) and inverter and DC power supply
It is connected.
4. the starter of gas turbine generator system as claimed in claim 3, which is characterized in that the permanent magnetism of generator operating mode
Generator (1) is main exciter (2) excitation by the second frequency converter (7).
5. the starter of gas turbine generator system as claimed in claim 4, which is characterized in that when permanent magnet generator (1)
When in motor working condition, main exciter (2) is its excitation through third frequency converter (8) by power grid.
6. the starter of gas turbine generator system as claimed in claim 5, which is characterized in that main generator (3) passes through
4th frequency converter (9) is connected with power grid.
7. the starter of gas turbine generator system as claimed in claim 6, which is characterized in that permanent magnet generator (1)
Rotor and stator are respectively permanent magnet and winding.
8. the starter of gas turbine generator system as claimed in claim 7, which is characterized in that main exciter (2) turns
Son and stator are winding.
9. the starter of gas turbine generator system as claimed in claim 8, which is characterized in that main exciter (2) turns
Son is connect with the rotor electrical of main generator (3).
10. the starter of gas turbine generator system as claimed in claim 9, which is characterized in that the starter is also
Including electric machine controller (10), electric machine controller (10) is used to control the permanent magnet generator (1) of motor working condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222575.6A CN108443021A (en) | 2018-03-16 | 2018-03-16 | A kind of starter of gas turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810222575.6A CN108443021A (en) | 2018-03-16 | 2018-03-16 | A kind of starter of gas turbine generator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443021A true CN108443021A (en) | 2018-08-24 |
Family
ID=63194948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810222575.6A Pending CN108443021A (en) | 2018-03-16 | 2018-03-16 | A kind of starter of gas turbine generator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443021A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5023537A (en) * | 1989-08-23 | 1991-06-11 | Sundstrand Corporation | Low frequency feeder fault protection |
| US6307275B1 (en) * | 2000-01-31 | 2001-10-23 | Ford Global Technologies, Inc. | Method and apparatus for controlling a high-speed AC permanent magnet synchronous motor coupled to an industrial turbo engine |
| CN1407709A (en) * | 2001-08-24 | 2003-04-02 | 西门子公司 | Method and device for turbine set ignition |
| US20070029804A1 (en) * | 2005-08-05 | 2007-02-08 | Siemens Westinghouse Power Corporation | Electric power generation system using a permanent magnet dynamoelectric machine for starting a combustion turbine and for generating uninterruptible excitation power |
| CN101449052A (en) * | 2006-03-24 | 2009-06-03 | 通用电气航空系统有限责任公司 | Aircraft engine starter/generator and controller |
-
2018
- 2018-03-16 CN CN201810222575.6A patent/CN108443021A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5023537A (en) * | 1989-08-23 | 1991-06-11 | Sundstrand Corporation | Low frequency feeder fault protection |
| US6307275B1 (en) * | 2000-01-31 | 2001-10-23 | Ford Global Technologies, Inc. | Method and apparatus for controlling a high-speed AC permanent magnet synchronous motor coupled to an industrial turbo engine |
| CN1407709A (en) * | 2001-08-24 | 2003-04-02 | 西门子公司 | Method and device for turbine set ignition |
| US20070029804A1 (en) * | 2005-08-05 | 2007-02-08 | Siemens Westinghouse Power Corporation | Electric power generation system using a permanent magnet dynamoelectric machine for starting a combustion turbine and for generating uninterruptible excitation power |
| CN101449052A (en) * | 2006-03-24 | 2009-06-03 | 通用电气航空系统有限责任公司 | Aircraft engine starter/generator and controller |
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