CN2866857Y - Gas-turbogenerator controlling device - Google Patents
Gas-turbogenerator controlling device Download PDFInfo
- Publication number
- CN2866857Y CN2866857Y CN 200520052695 CN200520052695U CN2866857Y CN 2866857 Y CN2866857 Y CN 2866857Y CN 200520052695 CN200520052695 CN 200520052695 CN 200520052695 U CN200520052695 U CN 200520052695U CN 2866857 Y CN2866857 Y CN 2866857Y
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- China
- Prior art keywords
- signal
- instrument
- combustion machine
- gas turbine
- machine controller
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- Expired - Lifetime
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Abstract
The utility model relate to a control device for gas turbine powered generating sets. The principle of work is mainly that the main control panel of the gas turbine controller storing starting curves that analog output panel export circuit signals to a gas adjusting and implanting mechanism is connected to an epigyny machine with a communication converter. And it is characterized in that the gas turbine controller gas adjusting and the implanting mechanism realize the control of starting, raising speed, excitation, power generating, has low requirement of fuel, is of no synchronous equipment, meantime, employs a programmable logic controller to protect redundancy for important parameters of the set, auto synchronous utilize the gas turbine controller to gather voltage and frequency parameter, auto catching synchronous by the gas turbine controller is rapid to reflect, high success rate to start, widely to adapt to fuel, reliable to control, steady to perform.
Description
Technical field
It is the generator set control gear of power that the utility model relates to the gas turbine.
Background technique
Gas Turbine Generating Units is one of predominant use of gas turbine, and there was the control function singleness in the control system of gas turbine owing to adopt mechanical hydraulic-pressure type fuel adjusting mechanism in the past, and automaticity is low, and operator's experience is required high defective.Though some combustion machine has adopted fuel adjusting valve that can be automatically controlled, often fuel cleanliness, calorific value is had relatively high expectations, and has certain narrow limitation.In addition, when being incorporated into the power networks control, automatic paralleling generally adopts automatic sub-synchronous device to catch the same period, sends the instruction of being incorporated into the power networks by automatic sub-synchronous device, and this just need increase automatic sub-synchronous device outside control system.
Summary of the invention
The utility model is in order to overcome the defective that prior art exists, and it is low to have proposed a kind of demanded fuel, and the automaticity height need not the Gas Turbine Generating Units control gear of automatic sub-synchronous device.
The utility model adopts following measure to realize above-mentioned purpose.
Consist predominantly of host computer, combustion machine controller master control borad, combustion machine controller I/O expansion board, programmable logic controller (PLC); communication converter, frequency tablet, rotating speed tablet, analog amount output board; actuator, pressure instrument, temperature transmitter and instrument, electric parameters transducer are regulated in combustion gas; frequency transmitter, excess revolutions protection instrument, aviation tachometer; the overtemperature prote instrument, pressure signal, temperature signal; generator line voltage mutual inductor, combustion machine tach signal, exhaust temperature signal etc.Its main feature is: have starting curve in the described combustion machine controller master control borad, to guarantee that unit can both successfully start under different fuel, varying environment condition, host computer links to each other with combustion machine controller master control borad by communication converter, selects different starting curves to start in real time by host computer; Described combustion machine controller master control borad is regulated actuator by analog amount output board output current signal to combustion gas.Described pressure signal, temperature signal, exhaust temperature signal is input to combustion machine controller master control borad after temperature transmitter or instrument are transformed to 4～20mA current signal, simultaneously by instrument output alarm or tight guard's valve signal to programmable logic controller; Described combustion machine tach signal is input to combustion machine controller master control borad through the rotating speed tablet, also is input to excess revolutions protection instrument and aviation tachometer simultaneously, and the output of excess revolutions protection instrument tightly stops signal to programmable logic controller.
The generator frequency of generator line voltage mutual inductor second side and the alternating signal of mains frequency are input to the frequency tablet again after frequency transmitter is transformed to frequency signal about 5V, the combustion machine controller is exactly to judge according to these two signals whether generator and line voltage frequency equate whether phase place is identical when checking the same period.
The utility model adopts combustion machine controller and combustion gas to regulate the starting control of actuator's realization unit, raising speed control, excitation control, Generation Control; demanded fuel is low; need not automatic sub-synchronous device; adopt programmable logic controller to realize the redundancy protecting of unit important parameter simultaneously; automatic paralleling adopts the combustion machine controller directly to gather voltage parameter and frequency parameter; automatically caught the same period by the combustion machine controller, reaction velocity is fast, the success rate height.Reasonable in design, function is complete, starting success rate height, and it is wide to adapt to fuel, good environmental adaptability, control is reliable, stable performance.
Description of drawings
Fig. 1 is the utility model control gear structural representation.
Among the figure: 1 host computer, 2 combustion machine controller master control borads, 3 combustion machine controller I/O expansion board; 4 programmable logic controllers, 5 transducers, 6 frequency tablets; 7 rotating speed tablets, 8 analog amount output boards, actuator is regulated in 9 combustion gas; 10 pressure instruments, 11 temperature transmitters and instrument, 12 electric parameters transducers; 13 frequency transmitters, 14 excess revolutions protection instrument, 15 aviation tachometers; 16 overtemperature prote instrument, 17 pressure signals, 18 temperature signals; 19 electrical parameters, 20 generator line voltage mutual inductors, 21 combustion machine tach signals; 22 valve position signals, 23 exhaust temperature signal, 24 alarm signals; 25 tightly stop signal, 26 other signals, 27 buzzers; 28 report to the police and tightly stop showing alarm window, and 29 tightly stop relay, 30 console button and switching signals; 31 high voltage protective switching signals, 32 other switching signals, 33 starting gas supply electromagnetic valves; 34 work gas supply electromagnetic valves, 35 fire prevention solenoid valves, 36 ignition control relays; 37 starting cabinets; 38 excitation cubicles, 39 low-voltage cabinets, 40 high pressure cabinets.
Embodiment
Combustion machine controller master control borad 2 is gathered 4～20mA current signal, frequency tablet 6 frequency acquisition signals, and rotating speed tablet 7 is gathered tach signal, and actuator 9 is regulated in analog amount output board 8 output current signals control combustion gas.Combustion machine controller I/O expansion board 3 is gathered console button and switching signal 30, high voltage protective switching signal 31 and other switching signals 32, and output switching signal control starting gas supply electromagnetic valve 33, work gas supply electromagnetic valve 34, fire prevention solenoid valve 35, ignition control relay 36 and the starting by starting cabinet 37 control starter motors or stop, by low-voltage cabinet 39 each primings of pump of control or stop, by excitation cubicle 38 control degaussing switches and increase and decrease excitation, combined floodgate and separating brake by high pressure cabinet 40 control main disconnectors.
The pressure signal 17 of unit, temperature signal 18, exhaust temperature signal 23, tach signal 21 remove and are input to combustion machine controller master control borad 2; protect outside the control by combustion machine controller master control borad 2; in addition by the instrument output alarm signal 24 that is attached thereto with tightly stop signal 25; this signal is input to programmable logic controller 4, realizes redundancy protecting by programmable logic controller 4.
The generator frequency of generator line voltage mutual inductor 20 second sides and the alternating signal of mains frequency are input to frequency tablet 6 through frequency transmitter 13.
In combustion machine controller master control borad 2, there is starting curve, starting curve is at the fuel characteristic of the current use of unit and local environmental characteristics debugging acquisition repeatedly at the scene after the unit installation, when condition changing, only need to change different starting curves and just can guarantee to start successfully.Host computer 1 links to each other with combustion machine controller master control borad 2 by communication converter 5, and the operator can select different starting curves by host computer 1 at any time.In addition, on console, be provided with fuel and increase and fuel down control button, during startup of unit, the operator can intervene the supply of fuel by operating these two buttons, the manual intervention value is applied directly on the current valve seat opening, like this, just can guarantee unit one push start success.
When the operator presses starting button, combustion machine controller I/O expansion board 3 output signals control low-voltage cabinet 39 is opened each pump, enter automatic start-up sequence, send starting command to starting cabinet 37, starting cabinet 37 is supplied with starter power, the entry into service of starter belt engine block, the combustion machine controller is connected fire prevention solenoid valve 35, starting gas supply electromagnetic valve 33, ignition control relay 36, unit runs to certain rotating speed, combustion machine controller connection work gas supply electromagnetic valve 34, gas turbine begins acting, fire 2 beginnings of machine controller master control borad this moment and regulate actuator's 9 fuel metering control valve openings by the 8 automatic control combustion gas of analog amount output board according to given starting curve, generating unit speed grows steadily, in the boosting velocity procedure after starting ignition, operator press fuel and increase and subtract button with fuel and all can increase or reduce the gas supply amount, help control system to guarantee that generating unit speed grows steadily, meanwhile fire machine controller master control borad 2 monitoring combustion machine exhaust temperature signal 23, delivery temperature is carried out closed loop control, guarantee to fire not overtemperature of machine exhaust.After unit arrives the slow train rotating speed, warming-up 3 minutes, fire the 2 control combustion gas of machine controller master control borad then and regulate actuator's 9 fuel metering control valve openings, the automatic raising speed of unit, after generating unit speed arrives the generating rotating speed, combustion machine controller I/O expansion board 3 is sent the order of excitation combined floodgate to excitation cubicle 38, the beginning excitation, combustion machine controller I/O expansion board 3 output increase and decrease excitation signal control excitation cubicles 38 rise to generator voltage identical with line voltage, this moment also can be by manual increase and decrease excitation, regulator generator voltage with can enter also net operation after line voltage is identical.And network process can be finished automatically by combustion machine controller master control borad 2, also can be by closing a floodgate manually.Under the automatic closing mode, combustion machine controller master control borad 2 is monitoring generator voltage and mains voltage signal automatically, seeks the some same period, after finding the some same period, combustion machine controller I/O expansion board 3 is sent the order of closing a floodgate to high pressure cabinet 40, and closing a floodgate successfully, the back unit begins to the electrical network feed.Under the closing by hand mode, by table operator monitor same period,, pull the combined floodgate knob by the operator when satisfying when requiring the same period, closing a floodgate successfully afterwards, unit begins to the electrical network feed.During orderly closedown, the operator only need pull the shutdown knob, and combustion machine controller master control borad 2 will be finished sequence of operations such as falling power, separating brake, jumping are encouraged, reduction of speed, warming up, fuel shutoff automatically, this moment if manual intervention then the stopping process conversion by manual control.In unit running process, occur if any alarm signal 24,4 output signals of programmable logic controller are controlled buzzer 27, report to the police and are stopped tightly to show that alarm window 28 sends acoustooptic alarm, if any tightly stopping signal 25, then implement to stop in emergency, can finish tripping operation by combustion machine controller I/O expansion board 3 output signals when stopping in emergency, jump encourage, action such as fuel shutoff, programmable logic controller 4 is controlled and is tightly stopped relay 29 and also finish above-mentioned action synchronously simultaneously.
Claims (4)
1. Gas Turbine Generating Units control gear; include host computer (1); combustion machine controller master control borad (2); combustion machine controller I/O expansion board (3); programmable logic controller (4), communication converter (5), frequency tablet (6); rotating speed tablet (7); analog amount output board (8), actuator (9), pressure instrument (10) are regulated in combustion gas; temperature transmitter and instrument (11); electric parameters transducer (12), frequency transmitter (13), excess revolutions protection instrument (14); aviation tachometer (15); overtemperature prote instrument (16), pressure signal (17), temperature signal (18); generator line voltage mutual inductor (20); combustion machine tach signal (21), exhaust temperature signal (23) is characterized in that: have starting curve in the described combustion machine controller master control borad (2); host computer (1) links to each other with combustion machine controller master control borad (2) by communication converter (5), and combustion machine controller master control borad (2) is regulated actuator (9) by analog amount output board (8) output current signal to combustion gas.
2. Gas Turbine Generating Units control gear according to claim 1; it is characterized in that: pressure signal (17); temperature signal (18); exhaust temperature signal (23) is through pressure instrument (10); temperature transmitter and instrument (11); overtemperature prote instrument (16) is input to combustion machine controller master control borad (2) after being transformed to 4～20mA current signal; simultaneously by pressure instrument (10), temperature transmitter and instrument (11) and overtemperature prote instrument (16) output alarm signal (24) and tightly stop signal (25) and arrive programmable logic controller (4).
3. Gas Turbine Generating Units control gear according to claim 1; it is characterized in that: combustion machine tach signal (21) is input to combustion machine controller master control borad (2) through rotating speed tablet (7); also be input to excess revolutions protection instrument (14) and aviation tachometer (15) simultaneously, excess revolutions protection instrument (14) output tightly stops signal (25) to programmable logic controller (4).
4. Gas Turbine Generating Units control gear according to claim 1 is characterized in that: the generator frequency of generator line voltage mutual inductor (20) second side and the alternating signal of mains frequency are input to frequency tablet (6) through frequency transmitter (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052695 CN2866857Y (en) | 2005-12-08 | 2005-12-08 | Gas-turbogenerator controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052695 CN2866857Y (en) | 2005-12-08 | 2005-12-08 | Gas-turbogenerator controlling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2866857Y true CN2866857Y (en) | 2007-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520052695 Expired - Lifetime CN2866857Y (en) | 2005-12-08 | 2005-12-08 | Gas-turbogenerator controlling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN2866857Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737170B (en) * | 2009-12-23 | 2011-10-26 | 电子科技大学 | Aeroengine generating system |
| CN101836168B (en) * | 2007-10-26 | 2013-03-06 | 西门子公司 | Method for analyzing the operation of a gas turbine |
| CN105841969A (en) * | 2016-05-10 | 2016-08-10 | 中科合肥微小型燃气轮机研究院有限责任公司 | Gas turbine testboard emergency shutdown protection system |
| CN105865800A (en) * | 2016-05-10 | 2016-08-17 | 中科合肥微小型燃气轮机研究院有限责任公司 | Gas turbine engine test bench testing system |
| CN108119241A (en) * | 2016-11-30 | 2018-06-05 | 通用电气公司 | It is modeled for the discharge of gas-turbine unit |
-
2005
- 2005-12-08 CN CN 200520052695 patent/CN2866857Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836168B (en) * | 2007-10-26 | 2013-03-06 | 西门子公司 | Method for analyzing the operation of a gas turbine |
| CN101737170B (en) * | 2009-12-23 | 2011-10-26 | 电子科技大学 | Aeroengine generating system |
| CN105841969A (en) * | 2016-05-10 | 2016-08-10 | 中科合肥微小型燃气轮机研究院有限责任公司 | Gas turbine testboard emergency shutdown protection system |
| CN105865800A (en) * | 2016-05-10 | 2016-08-17 | 中科合肥微小型燃气轮机研究院有限责任公司 | Gas turbine engine test bench testing system |
| CN108119241A (en) * | 2016-11-30 | 2018-06-05 | 通用电气公司 | It is modeled for the discharge of gas-turbine unit |
| CN108119241B (en) * | 2016-11-30 | 2020-12-01 | 通用电气公司 | Emissions modeling for gas turbine engines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA SOUTHERN CO. AVIATION INDUSTRIAL CO.,LTD. Free format text: FORMER OWNER: NANFANG AVIATION POWER MACHINERY CORP, CHINA Effective date: 20070727 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070727 Address after: 412002, Hunan City, Zhuzhou Province Patentee after: Nanfang Aviation Ind Co., Ltd., China Address before: 412002, Hunan City, Zhuzhou Province Patentee before: China Nanfang Aviation Power Machinery Co. |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA NATIONAL SOUTH AVIATION INDUSTRY (GROUP) CO. Free format text: FORMER NAME: NANFANG AVIATION IND CO., LTD., CHINA |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 412002, Hunan City, Zhuzhou Province Patentee after: China Southern Airlines Industry (Group) Co., Ltd. Address before: 412002, Hunan City, Zhuzhou Province Patentee before: Nanfang Aviation Ind Co., Ltd., China |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070207 |
|
| EXPY | Termination of patent right or utility model |