CN102332852A - Variable-frequency speed regulation control system for starting high-power pumped storage unit - Google Patents
Variable-frequency speed regulation control system for starting high-power pumped storage unit Download PDFInfo
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- CN102332852A CN102332852A CN201110253307A CN201110253307A CN102332852A CN 102332852 A CN102332852 A CN 102332852A CN 201110253307 A CN201110253307 A CN 201110253307A CN 201110253307 A CN201110253307 A CN 201110253307A CN 102332852 A CN102332852 A CN 102332852A
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Abstract
The invention discloses a variable-frequency speed regulation control system for starting a high-power pumped storage unit, which relates to the technical field of electric power units and aims at solving the technical problems that the existing system is poor in universality and not conductive to late-stage operation and maintenance. The system comprises a CPU (central processing unit) board, an analog signal interface board, a digital signal interface board, a reflective memory board, a Profibus communication board, a display board, a dual-port RAM (random access memory) module, a digital signal processor connected with the dual-port RAM module and a driving signal modulation board connected with the digital signal processor, which are mutually linked through a VME (versa module eurocard) bus, wherein an upper computer is connected on the CPU board; the analog signal interface board is used for acquiring analog signals of the pumped storage unit; and the digital signal interface board is sued for acquiring digital signals of an executing mechanism and outputting switching value execution signals to the executing mechanism. The system provided by the invention is good in universality and conductive to late-stage operation and maintenance.
Description
Technical field
The present invention relates to the electric power machine set technology, particularly relate to the technology of a kind of starting high-power pumped storage unit with frequency-converting speed-governing control system.
Background technology
Along with the raising of commercial power level and the construction energetically of generation of electricity by new energy, people are more and more urgent with the demand of hydroenergy storage station for peak regulation.Hydroenergy storage station can be used as generator operation when electrical network is in peak load, to electrical network electric energy is provided; When electrical network load at a low ebb, move as motor, drive water pump, draw back upper pond to the water of lower reservoir, it is subsequent use to do to convert electric energy to potential energy.Hydroenergy storage station can be brought into play multi-functionals such as peak-clipping and valley-filling, frequency modulation, phase modulation, emergency duty and black starting; Can effectively reduce fired power generating unit and participate in the number of times of peak regulation start and stop; Fired power generating unit can be undertaken the task of even not undertaking peak-clipping and valley-filling less; Thereby realize efficiently and smoothly operatedly, guarantee the mains supply reliability.Therefore, the hydroenergy storage station rational and effective is utilized, and can reduce conventional thermoelectricity peaking power source and build and fired power generating unit exhaust emission gas, and is significant to the service conditions and the protection environment that improve electric power system.
The startup of high-power pumped storage unit (more than the single-machine capacity 300MW) under pump operating condition is the key issue of its operation, and starting with frequency-converting speed-governing control system then is the maincenter that the high-power pumped storage unit is realized startup.Present starting high-power pumped storage unit has multiple with frequency-converting speed-governing control system; Though these existing frequency-converting speed-governing control systems can solve the startup problem of high-power pumped storage unit under pump operating condition; But the technology that these existing frequency-converting speed-governing control systems adopted all has nothing in common with each other; Shortcoming with versatility difference is unfavorable for later stage operation and maintenance.
Summary of the invention
To the defective that exists in the above-mentioned prior art, it is good that technical problem to be solved by this invention provides a kind of versatility, and the starting high-power pumped storage unit that is beneficial to later stage operation and maintenance is used frequency-converting speed-governing control system.
In order to solve the problems of the technologies described above; A kind of starting high-power pumped storage unit provided by the present invention is used frequency-converting speed-governing control system; Comprise the pumped storage unit, and be used to control a plurality of actuators of pumped storage unit operation, be provided with the voltage sensor that is used to monitor its voltage in the said pumped storage unit; And be used to monitor the current sensor of its electric current; Be used to monitor the incremental encoder of its speed of service, each actuator is equipped with switching value and carries out signal input, and is provided with serial communication interface and/or Profibus communication interface;
It is characterized in that: this system comprises digital signal processor, drive signal modulation panel, and through interconnected CPU board, analog signal interface plate, digital signal interface plate, reflective memory plate, Profibus communication board, display panel, the dual port RAM module of VME bus;
Said CPU board is provided with data exchange interface, and its data exchange interface connects a host computer;
Said analog signal interface plate is provided with a plurality of signals collecting mouths, and its each signals collecting mouth connects voltage sensor, current sensor and the incremental encoder of pumped storage unit respectively;
Said digital signal interface plate is provided with a plurality of switching values and carries out signal output, a plurality of serial communication interface; Its each switching value is carried out the switching value execution signal input that signal output connects each actuator respectively, and its each serial communication interface connects the serial communication interface of each actuator respectively;
Said reflective memory plate is connected to external control system through optical fiber;
Said Profibus communication board is provided with data exchange interface and a plurality of Profibus communication interface, and its data exchange interface connects a controller, and its each Profibus communication interface connects the Profibus communication interface of each actuator respectively;
Said display panel is provided with a video output, and is provided with a plurality of instruction buttons, and connects and respectively to instruct the keyboard circuit of button, and its video output connects a display screen;
Said dual port RAM module and digital signal processor are equipped with data exchange interface, and interconnected through data exchange interface;
Said drive signal modulation panel is provided with data-interface and pulse drive signal output, the data exchange interface of its data-interface linking number word signal processor, and its pulse drive signal output connects the startup main circuit power device of pumped storage unit.
Starting high-power pumped storage unit provided by the invention is used frequency-converting speed-governing control system; Utilize the analog signal interface plate to gather the analog signal of pumped storage unit, utilize the digital signal interface plate to gather the digital signal of actuator, and output switching value execution signal is given actuator; Utilize the reflective memory plate to connect external control system; Utilize Profibus communication board and actuator to realize the Profibus communication, and carry out exchanges data, message transmission through the VME bus between each plate, have good versatility; Be convenient to the expansion of control system, and be beneficial to later stage operation and maintenance.
Description of drawings
Fig. 1 is the structured flowchart of the starting high-power pumped storage unit of the embodiment of the invention with frequency-converting speed-governing control system.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
As shown in Figure 1; A kind of starting high-power pumped storage unit that the embodiment of the invention provided is used frequency-converting speed-governing control system; Comprise pumped storage unit (not shown), and be used to control a plurality of actuators (not shown) of pumped storage unit operation, be provided with the voltage sensor that is used to monitor its voltage in the said pumped storage unit; And be used to monitor the current sensor of its electric current; Be used to monitor the incremental encoder of its speed of service, each actuator is equipped with switching value and carries out signal input, and is provided with serial communication interface and/or Profibus communication interface;
It is characterized in that: this system comprises digital signal processor (DSP) 9, drive signal modulation panel 10, and through VME bus 1 interconnected CPU board 2, analog signal interface plate 3, digital signal interface plate 4, reflective memory plate 5, Profibus communication board 6, display panel 7, dual port RAM module 8;
Said CPU board 2 is provided with data exchange interface, and its data exchange interface connects a host computer 11;
Said analog signal interface plate 3 is provided with a plurality of signals collecting mouths, and its each signals collecting mouth connects voltage sensor, current sensor and the incremental encoder of pumped storage unit respectively;
Said digital signal interface plate 4 is provided with a plurality of switching values and carries out signal output, a plurality of serial communication interface and four subsequent use input ports of digital signal; Its each switching value is carried out the switching value execution signal input that signal output connects each actuator respectively, and its each serial communication interface connects the serial communication interface of each actuator respectively;
Said reflective memory plate 5 is connected to external control system 12 through optical fiber; Be used for and external control system between telecommunication; Can satisfy the communication between the control system of 10km, and communication speed reaches as high as 174Mbyte/s, the real-time control between can the realization system;
Said Profibus communication board 6 is provided with data exchange interface and a plurality of Profibus communication interface; Its data exchange interface connects a controller 13; This controller 13 is a prior art, can adopt PLC or host computer, and each Profibus communication interface of Profibus communication board 6 connects the Profibus communication interface of each actuator respectively; The Profibus communication speed reaches as high as 12Mbit/s, can requirement of real time not high communication and control requirement;
Said display panel 7 is provided with a video output, and is provided with a plurality of instruction buttons, and connects and respectively to instruct the keyboard circuit of button, and its video output connects a display screen 14, and said keyboard circuit is a prior art;
Said dual port RAM module 8 is equipped with data exchange interface with digital signal processor 9, and interconnected through data exchange interface;
Said drive signal modulation panel 10 is provided with data-interface and pulse drive signal output, the data exchange interface of its data-interface linking number word signal processor 9, and its pulse drive signal output connects the startup main circuit power device of pumped storage unit.
The pumped storage unit starting that the embodiment of the invention provided is following with the concrete control method of frequency-converting speed-governing control system:
Analog signal interface plate 3 is gathered the analog signal of voltage, electric current and the speed of service of pumped storage unit in real time through voltage sensor, current sensor and the incremental encoder of pumped storage unit, and is uploaded to CPU board 2 through VME bus 1 after the analog signal conversion of the voltage of being gathered, electric current and the speed of service become digital signal;
Analog signal interface plate 3 converts digital signals such as the input current in the pumped storage unit starting process of being gathered, the speed of service to analog signal and exports display panel 7 to through VME bus 1; Display panel 7 is to export display screen 14 in real time to after the vision signal with the conversion of signals that receives, and makes things convenient for the staff to observe;
Digital signal interface plate 4 is gathered the digital signal of each actuator in real time through serial communication interface; And the digital signal of being gathered is uploaded to CPU board 2 through VME bus 1, the digital signal of each actuator that digital signal interface plate 4 is gathered comprises remote starter signal, long-range stop signal, remote reset signal, long-range emergent stop signal, higher level's high pressure auxiliary signal;
Digital signal interface plate 4 receives data or the instruction that CPU board 2 issues in real time through VME bus 1; And the data that CPU board 2 is issued or instruction carry out signal output through its switching value and produce the actuator to correspondence, and data that CPU board 2 issues or instruction comprise SFC operating instruction, the ready instruction of SFC, the instruction of SFC fault, SFC alarm command;
7 pairs of instructions by its instruction button input of display panel are handled in real time, and show according to result output corresponding data to display screen 14;
The data that dual port RAM module 8 reception in real time and storage CPU board 2 and digital signal processor 9 send;
In the embodiment of the invention, digital signal processor 9 is accomplished controls such as sampling and torque closed loop, vector calculating and is calculated, last formation voltage vector set-point, and drive signal modulation panel 10 generates the PWM modulating wave through the SVPWM algorithm and is prior art.
In the embodiment of the invention; Said CPU board 2, analog signal interface plate 3, digital signal interface plate 4, reflective memory plate 5, Profibus communication board 6 all adopt GE (General Electric) company existing product; Wherein the model of CPU board 2 is VMIVME-7807RC; The model of analog signal interface plate 3 is VMIVME-3123 or VMIVME-4140; The model of digital signal interface plate 4 is VMIVME-2536, and the model of reflective memory plate 5 is VMIVME-5565, and the model of Profibus communication board 6 is SST_PB3_VME.
In the embodiment of the invention, the Cyclone III Series FPGA chip that said dual port RAM module 8 adopts altera corp to produce.
In the embodiment of the invention, the vector control algorithm that CPU board 2 is analyzed data is a prior art, is specially by the directed synchronous machine vector control algorithm of air-gap field.
Claims (1)
1. a starting high-power pumped storage unit is used frequency-converting speed-governing control system; Comprise the pumped storage unit, and be used to control a plurality of actuators of pumped storage unit operation, be provided with the voltage sensor that is used to monitor its voltage in the said pumped storage unit; And be used to monitor the current sensor of its electric current; Be used to monitor the incremental encoder of its speed of service, each actuator is equipped with switching value and carries out signal input, and is provided with serial communication interface and/or Profibus communication interface;
It is characterized in that: this system comprises digital signal processor, drive signal modulation panel, and through interconnected CPU board, analog signal interface plate, digital signal interface plate, reflective memory plate, Profibus communication board, display panel, the dual port RAM module of VME bus;
Said CPU board is provided with data exchange interface, and its data exchange interface connects a host computer;
Said analog signal interface plate is provided with a plurality of signals collecting mouths, and its each signals collecting mouth connects voltage sensor, current sensor and the incremental encoder of pumped storage unit respectively;
Said digital signal interface plate is provided with a plurality of switching values and carries out signal output, a plurality of serial communication interface; Its each switching value is carried out the switching value execution signal input that signal output connects each actuator respectively, and its each serial communication interface connects the serial communication interface of each actuator respectively;
Said reflective memory plate is connected to external control system through optical fiber;
Said Profibus communication board is provided with data exchange interface and a plurality of Profibus communication interface, and its data exchange interface connects a controller, and its each Profibus communication interface connects the Profibus communication interface of each actuator respectively;
Said display panel is provided with a video output, and is provided with a plurality of instruction buttons, and connects and respectively to instruct the keyboard circuit of button, and its video output connects a display screen;
Said dual port RAM module and digital signal processor are equipped with data exchange interface, and interconnected through data exchange interface;
Said drive signal modulation panel is provided with data-interface and pulse drive signal output, the data exchange interface of its data-interface linking number word signal processor, and its pulse drive signal output connects the startup main circuit power device of pumped storage unit.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103235521A (en) * | 2013-03-28 | 2013-08-07 | 冶金自动化研究设计院 | All-digital control panel of cascaded high-voltage frequency converter integrated with function of communication with multiple industrial control networks |
CN107160390A (en) * | 2017-05-16 | 2017-09-15 | 中国科学院沈阳自动化研究所 | It is a kind of to control integral control system for the robot that cooperates |
CN109116787A (en) * | 2018-09-29 | 2019-01-01 | 柳州钢铁股份有限公司 | Frequency changer circuit frequency-changing speed-regulating control system input quantity acquisition device |
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JP2002345296A (en) * | 2001-05-15 | 2002-11-29 | Tokyo Electric Power Co Inc:The | Control system for variable-speed machine |
CN1987705A (en) * | 2006-12-30 | 2007-06-27 | 中国科学院电工研究所 | Real time multiple task distributive control system based on VME bus |
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2011
- 2011-08-30 CN CN201110253307A patent/CN102332852A/en active Pending
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JP2002345296A (en) * | 2001-05-15 | 2002-11-29 | Tokyo Electric Power Co Inc:The | Control system for variable-speed machine |
CN1987705A (en) * | 2006-12-30 | 2007-06-27 | 中国科学院电工研究所 | Real time multiple task distributive control system based on VME bus |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103235521A (en) * | 2013-03-28 | 2013-08-07 | 冶金自动化研究设计院 | All-digital control panel of cascaded high-voltage frequency converter integrated with function of communication with multiple industrial control networks |
CN107160390A (en) * | 2017-05-16 | 2017-09-15 | 中国科学院沈阳自动化研究所 | It is a kind of to control integral control system for the robot that cooperates |
CN107160390B (en) * | 2017-05-16 | 2020-05-19 | 中国科学院沈阳自动化研究所 | Driving and controlling integrated control system for cooperative robot and preparation method thereof |
CN109116787A (en) * | 2018-09-29 | 2019-01-01 | 柳州钢铁股份有限公司 | Frequency changer circuit frequency-changing speed-regulating control system input quantity acquisition device |
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Application publication date: 20120125 |