CN101846998B - Redundant digital electric-hydraulic control system for turbine - Google Patents
Redundant digital electric-hydraulic control system for turbine Download PDFInfo
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- CN101846998B CN101846998B CN2010101454817A CN201010145481A CN101846998B CN 101846998 B CN101846998 B CN 101846998B CN 2010101454817 A CN2010101454817 A CN 2010101454817A CN 201010145481 A CN201010145481 A CN 201010145481A CN 101846998 B CN101846998 B CN 101846998B
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Abstract
The invention discloses a redundant digital electric-hydraulic control system for a turbine, comprising a dual power switching device, a control unit and a man-machine interface, wherein, the control unit comprises a controller A, a controller B, a signal acquisition module group A, a signal acquisition module group B, a dual machine switching module and a plurality of communication modules; the controller A carries out signal interaction with a turboset and a servo system through the signal acquisition module group A; the controller B carries out signal interaction with the turboset and the servo system through the signal acquisition module group B; the controller A is connected with the controller B, and the controller A and the controller B respectively carry out information interaction with the man-machine interface through the communication modules; and the signal of the controller A and the controller B is connected to the dual machine switching module and the controller A and the controller B carry out information interaction with the man-machine interface through the communication modules. The redundant digital electric-hydraulic control system realizes the triplex redundancy design of the control unit, a power supply unit and the man-machine interface of the digital electric-hydraulic control system for the turbine, greatly prevents threat on normal operation of the turboset caused by faults of the control system, and ensures safe and reliable operation of the turboset under various working conditions.
Description
Technical field
The present invention relates to the control system of steam turbine, particularly relate to a kind of redundant digital electric-hydraulic control system for turbine.
Background technology
Digital electro-hydraulic control system partly is made up of electronic control system part and hydraulic regulation security system.The main task of digital electro-hydraulic regulating system for steam turbine is exactly to regulate rotating speed, the power of Turbo-generator Set, make it satisfy the requirement of electrical network, adopt the control accuracy of digital electro-hydraulic control can raising height, middle pressure pitch, for realizing that CCS coordinates to control and the controlling level of raising whole turbine unit provides basic guarantee, more help the operation of steam turbine.Digital electro-hydraulic control system of the prior art is aspect reliability design, most way is that signal of interest or loop are adopted Redundancy Design, but signal receiving unit and signal synthesis processing links are not considered redundancy, in a single day control system itself breaks down and will the normal operation of Steam Turbine be threatened, be difficult to guarantee Steam Turbine safety, reliability service under various operating modes.Simultaneously available technology adopting two-way power supply is realized redundant power supply, if one road power fail wherein switches to another road immediately, but in handoff procedure, exist switching time long, disturb problems such as consumer.
Summary of the invention
Technical matters to be solved by this invention provides a kind of redundant digital electric-hydraulic control system for turbine, control module wherein adopts the Redundancy Design of two controllers and dual signal acquisition module, can prevent because of the normal operation of the fault of control system to Steam Turbine own threatens, to guarantee Steam Turbine safety, reliability service under various operating modes.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of redundant digital electric-hydraulic control system for turbine, comprise double-power supply switching device, control module and man-machine interface, wherein double-power supply switching device and control module are installed in the switch board, double-power supply switching device provides power supply for control module and man-machine interface, control module receives, handle on-site signal and carry out information interaction with man-machine interface, described control module comprises the A controller, the B controller, A organizes signal acquisition module, the group-b signal acquisition module, two-shipper handover module and a plurality of communication module, wherein to carry out signal by A group signal acquisition module and Steam Turbine and servo-drive system mutual for the A controller, it is mutual that the B controller carries out signal by group-b signal acquisition module and Steam Turbine and servo-drive system, the A controller links to each other with the B controller and can carry out information interaction by communication module and man-machine interface respectively, and the signal of A controller and B controller is also connected to the two-shipper handover module simultaneously and carries out information interaction by communication module and man-machine interface.
As preferably, described double-power supply switching device comprises the interchange module, exchange in the module and contain the AC power failure switch boards, voltage reference chip and the resistance in the switch boards wherein, potentiometer cooperates output 2 tunnel reference voltage signals that vary in size as height change action voltage, 2 road 220VAC power supplys convert 2 tunnel d. c. voltage signals independently to by voltage transformer (VT), compare with change action voltage respectively, when direct current signal during greater than high change action voltage or less than low change action voltage, transistor turns, the actuating of relay, supply unit are imported power supply as working power with another road automatically.
As preferably, described controller comprises host module, multifunctional access oralia, status display panel and address card, wherein host module carries out information interaction by multifunctional access oralia and status display panel, address card and signal acquisition module, host module is connected with display interface device and mouse-keyboard interface, and address card is connected with communication interface.
As preferably, described two-shipper handover module comprises the switching mainboard and switches display board, described switching mainboard is used for signal input, output, internal electric source conversion, switch logic combination and state indication output, the two-shipper handover module switches to the control output of A machine the control output of system when the A machine is worked, the two-shipper handover module switches to the control output of B machine the control output of system when the B machine is worked, described switching display board receives the condition indicative signal that switches mainboard output, indicates by LED light.
As preferably, described communication module comprises power supply unit, 232 control modules and 422 control modules, described power supply unit receives outside 24V direct supply, convert 2 road 5V power supplys to through DC/DC modular converter independently, use for 232 control modules, 422 control modules respectively, the signal transmission between described 232 control modules and 422 control modules need be passed through photoisolator.
As preferably, described man-machine interface comprises traditional operation terminal and the intelligent operating board that is made of main frame, display, keyboard, mouse, printer.
As preferably, described intelligent operating board comprises flexible keystroke circuit board and mainboard, described flexible keystroke circuit board is mainly finished all button operations, comprise and realize that parameter modification, parameter query reach the control to unit, described mainboard is integrated DC/DC conversion loop, CPU control loop, special integrated circuit and standard RS232 serial communication interface.
Redundant digital electric-hydraulic control system for turbine of the present invention, control module wherein comprises the A controller, the B controller, A organizes signal acquisition module, the group-b signal acquisition module, two-shipper handover module and a plurality of communication module, here adopt interconnective two controllers and be equipped with the structural design of two groups of signal acquisition module, also between two controllers, be connected with the two-shipper handover module simultaneously, so just, two groups of independently signal reception and disposal systems have been formed, but and switch fast when one group of automatic or manual when breaking down wherein, realize the Redundancy Design of digital electro-hydraulic control system nucleus module control module, improved operation stability of equipment greatly.
Redundant digital electric-hydraulic control system for turbine of the present invention, contain the AC power failure switch boards in the interchange module of double-power supply switching device, when the input power supply in any one road voltage be higher than 250V or be lower than 180V and another road just often, automatically another road is switched to working power, vice versa; Behind any one road power fail, another road power supply no longer carries out out-of-limit judgement, even fault also will be as working power and output, up to the power up of first fault.When the two-way power supply all just often, can artificial online switching, change action voltage height can be by the potentiometer adjustment of plate inside.Inside modules switch logic loop is directly connected to form by relay and A.C. contactor, has reduced switching time.
Redundant digital electric-hydraulic control system for turbine of the present invention, man-machine interface wherein comprises traditional operation terminal and the intelligent operating board that is made of main frame, display, keyboard, mouse, printer, redundant man-machine interface is used for guaranteeing to realize unperturbed between each redundancy unit of control system is switched, and has simplified the operating process of field operator to control system.
In sum, redundant digital electric-hydraulic control system for turbine of the present invention, realized the triplex level redundancy design of control module, power supply unit and the man-machine interface of digital electro-hydraulic control system by two controllers and dual signal acquisition module, double-power supply switching device, traditional operation terminal and intelligent operating board, greatly prevented to have guaranteed Steam Turbine safety, reliability service under various operating modes because of the normal operation of the fault of control system to Steam Turbine own threatens.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is a redundant digital electric-hydraulic control system for turbine block diagram of the present invention.
Fig. 2 is the double-power supply switching device circuit diagram in the redundant digital electric-hydraulic control system for turbine of the present invention.
Fig. 3 is the controller block diagram in the redundant digital electric-hydraulic control system for turbine of the present invention.
Fig. 4 is the two-shipper handover module block diagram in the redundant digital electric-hydraulic control system for turbine of the present invention.
Fig. 5 is the communication module block diagram in the redundant digital electric-hydraulic control system for turbine of the present invention.
Fig. 6 is the intelligent operating board block diagram in the redundant digital electric-hydraulic control system for turbine of the present invention.
Embodiment
Disclosed all features in this instructions, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this instructions (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, redundant digital electric-hydraulic control system for turbine of the present invention, comprise double-power supply switching device, control module and man-machine interface, wherein double-power supply switching device and control module are installed in the switch board, double-power supply switching device provides power supply for control module and man-machine interface, control module receives, handle on-the-spot Steam Turbine and servo-drive system signal and carry out information interaction with man-machine interface, described control module comprises the A controller, the B controller, A organizes signal acquisition module, the group-b signal acquisition module, two-shipper handover module and a plurality of communication module, wherein to carry out signal by A group signal acquisition module and Steam Turbine and servo-drive system mutual for the A controller, it is mutual that the B controller carries out signal by group-b signal acquisition module and Steam Turbine and servo-drive system, the A controller links to each other with the B controller and can carry out information interaction by communication module and man-machine interface respectively, and the signal of A controller and B controller is also connected to the two-shipper handover module simultaneously and carries out information interaction by communication module and man-machine interface.On-site signal is connected by electrical wiring to the connection terminal on the rack, again various signals are connected on the corresponding plate in the signal acquisition module by internal wire, by signal acquisition module signal is done respective handling, signal after the processing is directly connected to controller by pre-fabricated electric cables, controller with the calculated signals that receives after, output a control signal to signal acquisition module, the output wiring terminal that is connected by electrical wiring to again on the rack passes to field apparatus.All ephemeral datas and parameter in A controller and the B controller are all transmitted mutually by the communication port on the controller, to guarantee parameter and the running status unanimity in two controllers, realize redundancy mutually, standby each other function.The signal of two controllers is connected to communication module, inside modules becomes RS422 communication mode (realizing remote, the transmission fast of data) with the data-switching of RS232 communication mode, be connected to another communication module by netting twine again, at last with data transmission to the main frame of man-machine interface, peripherals such as supporting display, keyboard, mouse, printer are finished exchanges data and every function operations to control system.The signal of A controller and B controller is also connected to the two-shipper handover module simultaneously, switch one road RS232 communication signal by the two-shipper handover module, during the work of A machine, the communication signal of A machine is switched output, communication signal with the B machine during work of B machine switches output, and the signal after the switching also needs supporting communication module just can transfer signals to intelligent operating board.
As shown in Figure 2, redundant digital electric-hydraulic control system for turbine of the present invention, contain the AC power failure switch boards in the interchange module of double-power supply switching device, the input power supply overvoltage of double-power supply switching device, under-voltage handoff functionality are realized by the AC power failure switch boards that exchanges in the module.The voltage reference chip cooperates output 2 tunnel reference voltage signals that vary in size (can adjust) in the switch boards with resistance, potentiometer, as height change action voltage, 2 road 220VAC power supplys convert 2 tunnel d. c. voltage signals independently to by voltage transformer (VT), compare with change action voltage respectively, when direct current signal during greater than high change action voltage or less than low change action voltage, the transistor turns of switch boards inside, the actuating of relay, supply unit are imported power supply as working power with another road automatically.The value of change action voltage can be used the adjustment of built-in potential device, is used to detect the alternating voltage of different input ranges.When the input power supply in any one road voltage be higher than 250V or be lower than 180V and another road just often, automatically another road is switched to working power, vice versa; Behind any one road power fail, another road power supply no longer carries out out-of-limit judgement, even fault also will be as working power and output, up to the power up of first fault.When the two-way power supply all just often, can artificial online switching, change action voltage height can be by the potentiometer adjustment of switch boards inside.Inside modules switch logic loop is directly connected to form by relay and A.C. contactor, has reduced switching time.
As shown in Figure 3, redundant digital electric-hydraulic control system for turbine of the present invention, controller comprises host module, multifunctional access oralia, status display panel and address card, wherein host module carries out information interaction by multifunctional access oralia and status display panel, address card and signal acquisition module, host module is connected with display interface device and mouse-keyboard interface, and address card is connected with communication interface.Described host module adopts the PC104 dongle configuration of standard, module contains CPU, internal memory, BIOS, IDE (HDD and CDROM) interface, floppy drive interface, display interface device, mouse-keyboard interface etc., can finish various operation of data, analysis, processing by CPU, internal memory is used to store the internal logic program, can realize the transmission of data and peripherals in the controller by display interface device and mouse-keyboard interface, be convenient to the debugging of controller before dispatching from the factory.Described multifunctional access oralia is equipped with the PC104 bus interface, is connected with the external interface plate by the DDK socket.Can realize 32 road A/D conversion (analog quantity load module and the supporting use of mould incoming interface plate, receive 1～5VDC voltage signal of mould incoming interface plate, this signal becomes digital quantity signal one by one by multidiameter option switch after high-performance A/D conversion chip is handled, delivering to programmable logic array again after photoelectricity is isolated handles, data after the processing are transferred among the CPU of host module by the form of PC104 plug-in unit with data bus, carry out related operation by CPU), (data in host module after the CPU computing are transferred in the programmable logic array by the form of PC104 plug-in unit with data bus in 4 road D/A conversion, by programmable logic array data are put in order, output, the digital quantity signal of output is after photoelectricity is isolated, deliver to D/A converter, after the D/A conversion, it is become analog signals (1～5VDC) delivers to mould outgoing interface plate), 3 road pulsed quantities are measured (pulsed quantity load module and rotating speed fore-lying device module, the supporting use of rotating speed interface board, receive the pulse signal of on-the-spot speed probe, inside is delivered to programmable logic array through Schmidt trigger and is handled, data after the processing are transferred among the CPU of host module by the form of PC104 plug-in unit with data bus, carry out related operation by CPU).48 way switch amount input states monitor (switching input module with open the supporting use of incoming interface plate, reception is from the switching value signal of opening the incoming interface plate, inside is delivered to programmable logic array through Schmidt trigger and is handled, data after the processing are transferred among the CPU of host module by the form of PC104 plug-in unit with data bus, carry out related operation by CPU) and 32 way switch amounts output (the switching value output signal of switching value output module reception programmable logic array, with leave the supporting use of interface board, drive output relay and passage output indicator).Described address card possesses the standard communication port, finishes being connected of communication interface on controller internal data and the controller cabinet, realizes the remote data transmission of controller internal data and man-machine interface.
As shown in Figure 4, redundant digital electric-hydraulic control system for turbine of the present invention, the two-shipper handover module comprises the switching mainboard and switches display board, described switching mainboard is used for signal input, output, internal electric source conversion, switch logic combination and state indication output, the two-shipper handover module switches to the control output of A machine the control output of system when the A machine is worked, the two-shipper handover module switches to the control output of B machine the control output of system when the B machine is worked, described switching display board receives the condition indicative signal that switches mainboard output, indicates by LED light.Switch Watchdog and the I/O normal signal (the switching value signal during A/B controller I/O self check OK sent) of mainboard reception from controller, two kinds of signals are sent into the CPLD controller by driver after isolating, controller inside is judged the recurrent pulses of Watchdog signal.During time of setting greater than handover module when recurrence interval of Watchdog signal, handover module is judged the Watchdog signal fault, when Watchdog and I/O self check all just often, it is normal that handover module is judged as this machine, otherwise this machine fault is delivered to the A/B controller after simultaneously normal signal being isolated.When the A/B controller starts simultaneously, it is the work at present machine that handover module is selected the A controller, switch to output loop with the analog quantity output signals of A controller and export as system control signal this moment, will leave the power supply common port and switch to A controller switching value out-put supply end.During A controller fault or when manually cutting the B controller (system is automatically with A machine moment set fault), handover module is cut the analog quantity output signals of B controller to output loop and is exported as system control signal, will leave the power supply common port and switch to B controller switching value out-put supply end.Simultaneity factor is switched one road RS232 communication signal, A controller when work, and the communication signal of A controller switched to operation board is connected, when the B controller is worked the communication signal of B controller switched to operation board and be connected.At the A/B controller just often, the controller of final output signal is a working machine, and the signal of working machine work is delivered to pilot lamp and A/B controller by switching value.
As shown in Figure 5, redundant digital electric-hydraulic control system for turbine of the present invention, communication module comprises power supply unit, 232 control modules and 422 control modules, described power supply unit receives outside 24V direct supply, convert 2 road 5V power supplys to through DC/DC modular converter independently, use for 232 control modules, 422 control modules respectively, guarantee that the power supply of two parts circuit is isolated mutually, do not disturbed mutually.Signal transmission between described 232 control modules and 422 control modules need be passed through photoisolator.232 communication interfaces are connected with communication interface on the A/B controller in described 232 control modules, be used for receiving data from controller, data are transmitted with standard 232 data patterns, realize being connected on the driver after the level conversion through 232 special chips, signal after driving realizes that with pilot lamp the state of signal shows, codan lamp flicker expression 422 communication interfaces are receiving data, send pilot lamp flicker expression 422 communication interfaces and sending data, signal after driving simultaneously is connected to 422 special chips after photoisolator is isolated, by 422 special chips 232 conversion of signals are become 422 signals, export through 422 communication interfaces again.When 422 special chips receive external signal, the signal that receives is connected on the driver, after isolating, photoisolator is transferred on 232 special chips, realize of the conversion of 422 signals by 232 special chips, after the output of 232 communication interfaces to 232 signals.
As Fig. 1 and shown in Figure 6, redundant digital electric-hydraulic control system for turbine of the present invention, man-machine interface comprises traditional operation terminal and the intelligent operating board that is made of main frame, display, keyboard, mouse, printer.Affiliated intelligent operating board comprises flexible keystroke circuit board and mainboard, described flexible keystroke circuit board is mainly finished all button operations, comprise and realize that parameter modification, parameter query reach the control to unit, described mainboard is integrated DC/DC conversion loop (for operation board provides direct current 24V stabilized power source), CPU control loop (storage inside the master routine of the various functions of complete operation dish), special integrated circuit and standard RS232 serial communication interface.Special integrated circuit is a multifunction peripheral chip of having integrated charactron display driver and keyboard scan control and μ P monitoring, be mainly used in the expansion of keyboard and display interface, have interface simple, take that cpu resource is few, peripheral components simple, the cost performance advantages of higher.Standard RS232 serial communication interface is used for carrying out data communication with host computer, and supporting dedicated operations dish communication module can convert the RS422 communication modes to.In addition, intelligent operating board also is provided with LED indication (being mainly used in the indication of current unit and equipment running status) and charactron shows (being mainly used in the demonstration of current unit main frame operational factor).Intelligent operating board and traditional operation terminal have constituted redundant man-machine interface system, and when the traditional operation terminal broke down, available intelligent operating board substituted traditional operation terminal and control system swap data fully, guarantees control system safety, reliability service.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. redundant digital electric-hydraulic control system for turbine, comprise double-power supply switching device, control module and man-machine interface, wherein double-power supply switching device and control module are installed in the switch board, double-power supply switching device provides power supply for control module and man-machine interface, control module receives, handle on-site signal and carry out information interaction with man-machine interface, it is characterized in that: described double-power supply switching device comprises the interchange module, exchange in the module and contain the AC power failure switch boards, voltage reference chip and the resistance in the switch boards wherein, potentiometer cooperates output 2 tunnel reference voltage signals that vary in size as height change action voltage, 2 road 220VAC power supplys convert 2 tunnel d. c. voltage signals independently to by voltage transformer (VT), compare with change action voltage respectively, when direct current signal during greater than high change action voltage or less than low change action voltage, transistor turns, the actuating of relay, supply unit are imported power supply as working power with another road automatically; Described control module comprises the A controller, the B controller, A organizes signal acquisition module, the group-b signal acquisition module, two-shipper handover module and a plurality of communication module, wherein to carry out signal by A group signal acquisition module and Steam Turbine and servo-drive system mutual for the A controller, it is mutual that the B controller carries out signal by group-b signal acquisition module and Steam Turbine and servo-drive system, the A controller links to each other with the B controller and can carry out information interaction by communication module and man-machine interface respectively, and the signal of A controller and B controller is also connected to the two-shipper handover module simultaneously and carries out information interaction by communication module and man-machine interface; Described controller comprises host module, multifunctional access oralia, status display panel and address card, wherein host module carries out information interaction by multifunctional access oralia and status display panel, address card and signal acquisition module, host module is connected with display interface device and mouse-keyboard interface, and address card is connected with communication interface; Described two-shipper handover module comprises the switching mainboard and switches display board, described switching mainboard is used for signal input, output, internal electric source conversion, switch logic combination and state indication output, the two-shipper handover module switches to the control output of A controller the control output of system when the A controller is worked, the two-shipper handover module switches to the control output of B controller the control output of system when the B controller is worked, described switching display board receives the condition indicative signal that switches mainboard output, indicates by LED light.
2. according to the described redundant digital electric-hydraulic control system for turbine of claim l, it is characterized in that: described communication module comprises power supply unit, 232 control modules and 422 control modules, described power supply unit receives outside 24V direct supply, convert 2 road 5V power supplys to through DC/DC modular converter independently, use for 232 control modules, 422 control modules respectively, the signal transmission between described 232 control modules and 422 control modules need be passed through photoisolator.
3. according to the described redundant digital electric-hydraulic control system for turbine of claim l, it is characterized in that: described man-machine interface comprises traditional operation terminal and the intelligent operating board that is made of main frame, display, keyboard, mouse, printer.
4. redundant digital electric-hydraulic control system for turbine according to claim 3, it is characterized in that: described intelligent operating board comprises flexible keystroke circuit board and mainboard, described flexible keystroke circuit board is mainly finished all button operations, comprise and realize that parameter modification, parameter query reach the control to unit, described mainboard is integrated DC/DC conversion loop, CPU control loop, special integrated circuit and standard RS232 serial communication interface.
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| CN102808662A (en) * | 2012-07-30 | 2012-12-05 | 江苏永钢集团有限公司 | Anti-interference device of expansion machine |
| DE102014208853A1 (en) * | 2014-05-12 | 2015-11-12 | Robert Bosch Gmbh | Method for operating a control device |
| CN105159263B (en) * | 2015-09-11 | 2018-06-19 | 九江长江仪表精密液压件厂 | A kind of intelligence electrohydraulic actuator self-cure regulation and control system control method |
| JP6396349B2 (en) * | 2016-02-24 | 2018-09-26 | ファナック株式会社 | Signal inspection apparatus, signal inspection system, signal inspection method, and signal inspection program |
| CN109343508A (en) * | 2018-10-16 | 2019-02-15 | 西北铁道电子股份有限公司 | A kind of human-computer interaction device |
| CN113431820B (en) * | 2021-06-17 | 2024-01-30 | 浙江中控技术股份有限公司 | Redundant servo control system and method supporting online replacement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875384A (en) * | 1973-11-06 | 1975-04-01 | Westinghouse Electric Corp | Protection system for transferring turbine and steam generator operation to a backup mode especially adapted for multiple computer electric power plant control systems |
| US4712372A (en) * | 1985-09-18 | 1987-12-15 | Avco Corporation | Overspeed system redundancy monitor |
| CN1595313A (en) * | 2003-09-11 | 2005-03-16 | 黑龙江省科学院自动化研究所 | Distributed control system and method for controlling microprocessor of redundant configuration therein |
| CN101074614A (en) * | 2007-06-15 | 2007-11-21 | 沈阳化工学院 | Digital redundant emergent protecting system of steam turbine |
| CN201037905Y (en) * | 2007-04-30 | 2008-03-19 | 德阳瑞能电力科技有限公司 | Minitype steam turbine digital electro-hydraulic controller |
| CN201341038Y (en) * | 2008-12-17 | 2009-11-04 | 德阳瑞能电力科技有限公司 | Multifunctional two-power-supply switching device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4657800B2 (en) * | 2005-05-16 | 2011-03-23 | 本田技研工業株式会社 | Control device for aircraft gas turbine engine |
-
2010
- 2010-04-13 CN CN2010101454817A patent/CN101846998B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875384A (en) * | 1973-11-06 | 1975-04-01 | Westinghouse Electric Corp | Protection system for transferring turbine and steam generator operation to a backup mode especially adapted for multiple computer electric power plant control systems |
| US4712372A (en) * | 1985-09-18 | 1987-12-15 | Avco Corporation | Overspeed system redundancy monitor |
| CN1595313A (en) * | 2003-09-11 | 2005-03-16 | 黑龙江省科学院自动化研究所 | Distributed control system and method for controlling microprocessor of redundant configuration therein |
| CN201037905Y (en) * | 2007-04-30 | 2008-03-19 | 德阳瑞能电力科技有限公司 | Minitype steam turbine digital electro-hydraulic controller |
| CN101074614A (en) * | 2007-06-15 | 2007-11-21 | 沈阳化工学院 | Digital redundant emergent protecting system of steam turbine |
| CN201341038Y (en) * | 2008-12-17 | 2009-11-04 | 德阳瑞能电力科技有限公司 | Multifunctional two-power-supply switching device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-316773A 2006.11.24 |
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