WO2004005675A2 - Method and device for regulating the rotational speed of a turbine connected to an electric power supply mains by means of a generator - Google Patents
Method and device for regulating the rotational speed of a turbine connected to an electric power supply mains by means of a generator Download PDFInfo
- Publication number
- WO2004005675A2 WO2004005675A2 PCT/DE2003/002169 DE0302169W WO2004005675A2 WO 2004005675 A2 WO2004005675 A2 WO 2004005675A2 DE 0302169 W DE0302169 W DE 0302169W WO 2004005675 A2 WO2004005675 A2 WO 2004005675A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- turbine
- speed
- valve
- control
- turbine valve
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/02—Arrangement of sensing elements
- F01D17/04—Arrangement of sensing elements responsive to load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/02—Arrangement of sensing elements
- F01D17/06—Arrangement of sensing elements responsive to speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
- F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/148—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of rotatable members, e.g. butterfly valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/02—Shutting-down responsive to overspeed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/02—Purpose of the control system to control rotational speed (n)
- F05D2270/021—Purpose of the control system to control rotational speed (n) to prevent overspeed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/04—Purpose of the control system to control acceleration (u)
- F05D2270/042—Purpose of the control system to control acceleration (u) by keeping it below damagingly high values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/05—Purpose of the control system to affect the output of the engine
- F05D2270/053—Explicitly mentioned power
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/09—Purpose of the control system to cope with emergencies
- F05D2270/091—Purpose of the control system to cope with emergencies in particular sudden load loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/301—Pressure
- F05D2270/3011—Inlet pressure
Definitions
- the invention relates to a method and a device for speed control of a turbine.
- the present invention belongs to the technical field of the regulation of non-electrical variables, in particular to the devices for regulating the turbine speed, and is intended to prevent the expansion of dangerous situations in energy systems.
- An electrical energy supply network for supplying a larger area with electrical energy is usually formed by the interconnection of a number of power plants, so that even in the event of high demand for power from consumers connected to the energy supply network, the supply of electrical energy is secured without the energy supply network as a result of Overload breaks down.
- such an electrical energy supply network can also break down, for example as a result of short circuits in one or more sections of the energy supply network, since in particular the high short-circuit currents occurring in the event of such short circuits could overload the power plants connected to the energy supply network.
- Each disconnection of a turbine means a loss of electrical power, which can currently be made available by the energy supply network.
- the more and the more powerful power plants are interconnected to form an energy supply network the greater the security of supply of the energy supply network, since individual faults hardly lead to the turbine being disconnected from the energy supply network.
- the method closest to the proposed method is a steam turbine protection method for hazardous situations, which consists in measuring the quantity to be checked, comparing it with the predetermined setpoint and generating a signal which acts on an actuating unit, and a Protection system that includes a measuring device, a comparison device and an actuating unit (Patent RF No. 2062330, Class F01D 21/02, 1996).
- the known steam turbine protection method and the known protection system have limited functional possibilities, since these do not take into account the speed with which the size to be controlled changes, which can lead to a reduction in the protection reliability.
- the invention is therefore based on the object of specifying a method and a device for regulating the speed of a turbine which is connected to an electrical power supply network by means of a generator and which offer particularly great security of supply.
- the object is achieved by a method for regulating the speed of a turbine connected to an electrical power supply network by means of a generator with the following steps:
- the speed of the turbine is related to the current operating load, which results after the load change, regulated by means of a control intervention on the at least one turbine valve.
- the method according to the invention is intended in particular to prevent a load shedding during operation of the turbine, in particular a sudden partial load shedding due to a fault in the electrical power supply network, leading to a desynchronization and thus to a total load shedding and rapid shutdown of the turbine.
- the turbine valve can, for example, be a live steam valve of the turbine, by means of which the operating steam generated by a steam generator is fed to the turbine.
- the speed of the turbine can then be regulated in accordance with the new operating situation after load shedding, for example by means of a turbine regulator which acts on the at least one turbine valve.
- the at least one turbine valve is briefly closed by means of the control intervention.
- the short-term throttling of the turbine valve is maximum and therefore effectively counteracts in particular a partial load shedding with a very high rate of change.
- subsequent operating cases of the turbine can be controlled particularly well, in which a very fast and very large partial load shedding takes place.
- control intervention on the at least one turbine valve is carried out by means of at least two control signals, with actuation in the direction of the open position of the turbine valve by means of a first control signal and actuation by means of a second control signal of the at least two control signals is achievable in the direction of the closed position of the turbine valve.
- the control signals preferably each include the output of an electrical current, in particular with a current between 0 mA and 20 mA, the current electrical current currently output being a measure of the degree of opening or closing of the turbine valve.
- the turbine valve is controlled by means of second current signals as control signals, the entire opening and closing range of the turbine valve being mapped to a current range between 0 and 20 mA.
- a number of suitable modules are available for outputting such current signals.
- the current signals are each fed to a signal amplifier module, which then provides the required power signal for actuating the turbine valve.
- the method according to the invention is preferably carried out by means of a cyclically operating digital computing device, in particular a programmable logic controller.
- Such computing devices are available in a wide variety of configurations and, because of their mostly modular structure, can be upgraded in a simple manner to carry out the method according to the invention.
- the object according to the invention is also achieved by a further method according to the invention.
- two control signals can be generated per turbine valve, one of which changes the position of a turbine valve in the “OPEN” direction and the other in the “CLOSE” direction 1 , the generated control signal and the speed at which the speed of the turbine shaft changes being proportional to one another , and it is a current with a strength of 0 to 20 mA, which determines the degree of opening nens or the closing of turbine valves.
- a digital control signal can be generated which will ensure operation with digital computing equipment.
- the object is achieved by a device for speed control of a turbine connected to an electrical power supply network by means of a generator, with the following components:
- a calculation unit by means of which a load change speed of a detected load change can be calculated
- a actuating unit by means of which, in the event of a load change speed in the direction of a smaller load, which is greater in amount than a predetermined maximum load change speed, at least one turbine valve can be actuated briefly in the direction of its closed position is and
- a computing unit by means of which at least two control signals for setting the at least one turbine valve can be generated, actuation in the direction of the open position of the turbine valve by means of a first control signal and actuation in the direction of the closed position by means of a second control signal of the at least two control signals of the turbine valve can be achieved.
- Actuating unit in the event of excessive load change speed for example as a result of a sudden partial load shedding, the at least one turbine valve immediately throttled, possibly even briefly closed, so that an impending desynchronization and / or a rapid shutdown of the turbine is prevented.
- the control unit provides two control signals for actuating the at least one turbine valve, a first of these at least two control signals only acts in the direction of the open position of the turbine valve and a second of these at least two control signals only acts in the direction of the closed position of the turbine valve. In this way, the position of the turbine valve can be regulated particularly well during the operation of the turbine.
- a turbine control program for example, can be implemented in the computing unit to generate the above-mentioned control signals, the speed of the turbine being regulated to a desired speed value by means of the control signals.
- control signals each include the output of an electrical current, in particular with a current strength between 0 mA and 20 mA, the current electrical current output in each case being a measure of the degree of opening or closing of the turbine valve.
- the device is particularly advantageously a programmable logic controller.
- the object of the invention is achieved with respect to the device by a further device.
- this device for speed control of a turbine connected by means of a generator to an electrical power supply network which contains a unit for receiving a signal proportional to the generator power and the limit signal of the turbine shaft speed, the outputs of which are connected to the unit for generating a control signal, which have two outputs has: output for the actual speed and output for the actual speed, the values of which are in the specified speed range, a processor is integrated, which outputs a signal when the nominal speed is temporarily changed and a signal when the setpoint is exceeded.
- the maximum temporary speed change is generated, connected to the input of a unit for generating a control action, the second input of which is connected to the setpoint generator for the permissible rate of change of the turbine shaft speed and the outputs of which are connected to the control inputs of the turbine valves, one of which is the turbine valve in the “OPEN” direction and the other in the “CLOSE” direction, the unit for generating a control action with a current output at which the current value and the rate of change of the turbine shaft speed are proportional to one another, or is designed in the form of a programmable control unit.
- FIG. 2 shows a further device according to the invention.
- FIG. 1 shows a device 1 according to the invention for controlling the speed of a turbine 3 which is connected to an electrical energy supply network by means of a generator 5.
- the device 1 comprises a sensor unit 7 which is connected, for example, to a process control device 25 of the turbine in order to detect a load change of the turbine and from which it receives current operating data of the turbine.
- a calculation unit 9 serves to calculate the current load change speed 10 of the detected load change. If the load change speed 10 calculated by means of the calculation unit 9 is greater in magnitude than a predetermined maximum load change speed 13, a turbine valve 15 of the turbine 3 is throttled briefly, in particular briefly closed, by means of an actuating unit 11.
- the speed of the turbine 3 is regulated according to the new load situation after the partial load shedding by means of a computing unit 17.
- the arithmetic unit 17 continuously operates the turbine valve 15 by means of two control signals 19, 21 during the operation of the turbine 3, with an actuation of the turbine valve 15 in the direction of its open position by means of a first control signal 19 and an actuation of the door by means of the second control signal 21 Line valve 15 in the direction of its closed position can be achieved.
- the setting unit 11 and the computing unit 17 can be implemented together, for example by means of an electronic circuit.
- the second actuating signal 21 for actuating the turbine valve 15 in the direction of its closed position can also be used for briefly throttling the turbine valve 15 according to the invention by means of the actuating unit 11; however, it is also possible to provide separate signals for this.
- a device 1 according to the invention is preferably implemented by means of a programmable logic controller.
- Analog signals are preferably processed with a cycle time of approximately 13 ms.
- the brief throttling of the turbine valve 15 advantageously takes place about 6.5 ms after the maximum load change speed 13 has been exceeded.
- FIG. 2 shows a sketch of the device for regulating the turbine speed.
- the device for regulating the turbine speed includes the unit 30 for specifying the load change of the turbine 32, the transmitter 34 of the limit signal for the turbine shaft speed, the unit 36 for generating the control signal to the valves 38 of the turbine 32, the processor 40, which Signal for the load change speed generated, connected between the transmitter 34 of the limit signal for the turbine shaft speed and the unit 36 for generating the control signal to the valves 38, a unit 42 for specifying the permissible load change speed, connected to the second input of the device 36 for generating of the control signal to the valves 38, the device 36 having two outputs which are connected to the inputs for controlling the position of the valves 38 on the turbine, one of which at least one of the valves 38 in the “ CLOSE ⁇ direction and the other of these Valve influenced in the "OPEN *" direction.
- the essence of the method is that the turbine load change is constantly monitored during turbine operation. If a change in load is determined, the speed at which the load changes is determined and this is then compared with the maximum permissible, the direction of the load change being checked. If the change in load is in the direction of reduction, at least one turbine valve is controlled in the “CLOSED” direction by means of control action, the turbine speed being set to the nominal load.
- the turbine speed control device operates as described below.
- the device is implemented on the basis of a processor 40 which operates according to a program loaded in its memory and which ensures the regulation of the turbine speed in accordance with the change in turbine load by leading it to the nominal value.
- the load change is determined by the unit 30 for specifying the load change, on the signal of which via turbine load change the processor 40 calculates the load change speed; when the maximum permissible value is exceeded, the unit 36 for generating the control signal generates one of the control signals to the valve 38 of the turbine 32.
- the device 30 for generating the control signal to the valves 38 In the event of a signal coming from the device 30 about a change in load in the direction of increase, the device 30 for generating the control signal to the valves 38 generates a signal for closing the valve 38.
- the turbine valve 38 can be installed, for example, in the steam supply duct of the turbine and the steam can be guided into the turbine from the steam generator by means of this valve. After a brief change in the valve position, the turbine speed can be regulated in accordance with the newly created operating situation.
- At least one turbine valve changes its state as a result of the control action.
- the control signals can be in the form of electrical current signals, in particular with a current of 0 to 20 mA, depending on the value of the control deviation signal.
- Modules are used to output current signals.
- the regulation of the turbine shaft speed can be carried out with the help of cyclically running digital equipment.
- a device according to the invention according to FIG. 2 and a corresponding method can be summarized as follows:
- the invention is aimed at expanding the functional possibilities by detecting the speed at which the value to be controlled changes when regulating the speed, which leads to an increase in the reliability of protection in dangerous situations.
- the process for controlling the speed of a turbine shaft connected to an electrical power supply system by means of a generator is based on measuring the speed and comparing it with the nominal speed, monitoring the value and the direction in which the measured speed deviates from the nominal speed, based on continuous calculation the speed at which the turbine shaft speed changes, and the comparison of this with the target value, the position of at least one turbine valve being changed by the control signal.
- the generated control signal and the speed at which the speed of the turbine shaft changes are proportional to one another, and the control signal is a current with a strength of 0 to 20 mA or a digital control signal that allows operation with digital Ensure computing equipment.
- the device for regulating the turbine speed includes the unit 30 for specifying the load change of the turbine 32, the transmitter 34 of the limit signal for the turbine shaft speed, the unit 36 for generating the control signal to the valves 38 of the turbine 32, the processor 40 for calculating the Load change rate, connected between the sensor 34 of the limit signal for the turbine shaft speed and the device 36 for generating the control signal to the valves 38, a unit 42 for specifying the permissible load change rate, connected to the second input of the device 36 for generating the control signal to the valves 38 , the device 36 for generating the control signal to the valves 38 has two outputs which are connected to the inputs for controlling the position of turbine valves 38, one of which the turbine valve in the "CLOSED * direction and the other in the" OPEN * direction affected.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10392841T DE10392841D2 (en) | 2002-07-04 | 2003-06-30 | Method and device for speed control of a turbine connected to an electrical power supply network by means of a generator |
AU2003250280A AU2003250280A1 (en) | 2002-07-04 | 2003-06-30 | Method and device for regulating the rotational speed of a turbine connected to an electric power supply mains by means of a generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10230125 | 2002-07-04 | ||
DE10230125.5 | 2002-07-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004005675A2 true WO2004005675A2 (en) | 2004-01-15 |
WO2004005675A3 WO2004005675A3 (en) | 2004-03-18 |
Family
ID=30009804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/002169 WO2004005675A2 (en) | 2002-07-04 | 2003-06-30 | Method and device for regulating the rotational speed of a turbine connected to an electric power supply mains by means of a generator |
Country Status (5)
Country | Link |
---|---|
CN (1) | CN100396886C (en) |
AU (1) | AU2003250280A1 (en) |
DE (1) | DE10392841D2 (en) |
RU (1) | RU2298653C2 (en) |
WO (1) | WO2004005675A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9507365B2 (en) | 2014-06-24 | 2016-11-29 | Woodward, Inc. | Adaptive PID control system for industrial turbines |
US20180058250A1 (en) * | 2016-08-31 | 2018-03-01 | General Electric Technology Gmbh | Spindle Vibration Evaluation Module For A Valve And Actuator Monitoring System |
WO2018041845A1 (en) * | 2016-08-31 | 2018-03-08 | General Electric Technology Gmbh | Tightness test evaluation module for a valve and actuator monitoring system |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2423464A1 (en) * | 2010-08-27 | 2012-02-29 | Siemens Aktiengesellschaft | Method for regulating a turbogenerator |
JP5730833B2 (en) * | 2012-09-21 | 2015-06-10 | 株式会社日立製作所 | Turbine control device, turbine control method, and turbine control program |
CN105119543B (en) * | 2015-09-22 | 2018-04-03 | 东方电机控制设备有限公司 | A kind of control method and system of the distal line removal of load of generating set governing system |
RU2733889C1 (en) * | 2019-12-18 | 2020-10-07 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский политехнический университет" (Московский Политех) | Hybrid vehicle on-board network supply system |
RU198844U1 (en) * | 2019-12-18 | 2020-07-31 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский политехнический университет" (Московский Политех) | Turbine generator speed limiting device |
CN111535876B (en) * | 2020-04-07 | 2022-05-10 | 东方电气集团东方汽轮机有限公司 | Regulating valve and nozzle set integrated structure of water supply pump steam turbine |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US3340883A (en) * | 1966-04-12 | 1967-09-12 | Gen Electric | Acceleration, speed and load control system with redundant control means |
DE1751821A1 (en) * | 1968-08-03 | 1971-05-19 | Licentia Gmbh | Arrangement for limiting overspeed in turbo systems |
US4146270A (en) * | 1976-06-19 | 1979-03-27 | Maschinenfabrik Augsburg-Nuremberg Aktiengesellschaft | Control device for turbines with speed and load control |
US4238924A (en) * | 1977-12-23 | 1980-12-16 | Nissan Motor Company, Limited | Control system |
US4258424A (en) * | 1972-12-29 | 1981-03-24 | Westinghouse Electric Corp. | System and method for operating a steam turbine and an electric power generating plant |
DE3242355C1 (en) * | 1982-11-16 | 1984-06-07 | Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal | Initiating device for speed regulation |
JPS59231105A (en) * | 1983-06-15 | 1984-12-25 | Hitachi Ltd | Electric governor |
EP0483570A1 (en) * | 1990-11-01 | 1992-05-06 | Westinghouse Electric Corporation | Method and apparatus for downline load rejection sensing in a gas turbine control system |
US5953902A (en) * | 1995-08-03 | 1999-09-21 | Siemens Aktiengesellschaft | Control system for controlling the rotational speed of a turbine, and method for controlling the rotational speed of a turbine during load shedding |
DE10055166A1 (en) * | 2000-11-08 | 2002-05-23 | Siemens Ag | Regulating power and revolution rate of turbine, involves using difference between current power and predefined power regulate the power |
-
2003
- 2003-06-30 CN CNB038173220A patent/CN100396886C/en not_active Expired - Fee Related
- 2003-06-30 DE DE10392841T patent/DE10392841D2/en not_active Expired - Fee Related
- 2003-06-30 AU AU2003250280A patent/AU2003250280A1/en not_active Abandoned
- 2003-06-30 WO PCT/DE2003/002169 patent/WO2004005675A2/en not_active Application Discontinuation
- 2003-06-30 RU RU2005102711/06A patent/RU2298653C2/en active
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US3340883A (en) * | 1966-04-12 | 1967-09-12 | Gen Electric | Acceleration, speed and load control system with redundant control means |
DE1751821A1 (en) * | 1968-08-03 | 1971-05-19 | Licentia Gmbh | Arrangement for limiting overspeed in turbo systems |
US4258424A (en) * | 1972-12-29 | 1981-03-24 | Westinghouse Electric Corp. | System and method for operating a steam turbine and an electric power generating plant |
US4146270A (en) * | 1976-06-19 | 1979-03-27 | Maschinenfabrik Augsburg-Nuremberg Aktiengesellschaft | Control device for turbines with speed and load control |
US4238924A (en) * | 1977-12-23 | 1980-12-16 | Nissan Motor Company, Limited | Control system |
DE3242355C1 (en) * | 1982-11-16 | 1984-06-07 | Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal | Initiating device for speed regulation |
JPS59231105A (en) * | 1983-06-15 | 1984-12-25 | Hitachi Ltd | Electric governor |
EP0483570A1 (en) * | 1990-11-01 | 1992-05-06 | Westinghouse Electric Corporation | Method and apparatus for downline load rejection sensing in a gas turbine control system |
US5953902A (en) * | 1995-08-03 | 1999-09-21 | Siemens Aktiengesellschaft | Control system for controlling the rotational speed of a turbine, and method for controlling the rotational speed of a turbine during load shedding |
DE10055166A1 (en) * | 2000-11-08 | 2002-05-23 | Siemens Ag | Regulating power and revolution rate of turbine, involves using difference between current power and predefined power regulate the power |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 009, no. 111 (M-379), 15. Mai 1985 (1985-05-15) -& JP 59 231105 A (HITACHI SEISAKUSHO KK), 25. Dezember 1984 (1984-12-25) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9507365B2 (en) | 2014-06-24 | 2016-11-29 | Woodward, Inc. | Adaptive PID control system for industrial turbines |
US10359798B2 (en) | 2014-06-24 | 2019-07-23 | Woodward, Inc. | Adaptive PID control system for industrial turbines |
US20180058250A1 (en) * | 2016-08-31 | 2018-03-01 | General Electric Technology Gmbh | Spindle Vibration Evaluation Module For A Valve And Actuator Monitoring System |
WO2018041844A1 (en) * | 2016-08-31 | 2018-03-08 | General Electric Technology Gmbh | Tightness test evaluation module for a valve and actuator monitoring system |
WO2018041845A1 (en) * | 2016-08-31 | 2018-03-08 | General Electric Technology Gmbh | Tightness test evaluation module for a valve and actuator monitoring system |
US10626749B2 (en) | 2016-08-31 | 2020-04-21 | General Electric Technology Gmbh | Spindle vibration evaluation module for a valve and actuator monitoring system |
Also Published As
Publication number | Publication date |
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AU2003250280A1 (en) | 2004-01-23 |
RU2005102711A (en) | 2006-01-20 |
CN100396886C (en) | 2008-06-25 |
AU2003250280A8 (en) | 2004-01-23 |
RU2298653C2 (en) | 2007-05-10 |
CN1668829A (en) | 2005-09-14 |
WO2004005675A3 (en) | 2004-03-18 |
DE10392841D2 (en) | 2005-03-03 |
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