CN112953002A - Power transmitter safety optimization configuration method for DEH (distributed energy optimization) regulation of power plant participating unit - Google Patents
Power transmitter safety optimization configuration method for DEH (distributed energy optimization) regulation of power plant participating unit Download PDFInfo
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- CN112953002A CN112953002A CN202110157691.6A CN202110157691A CN112953002A CN 112953002 A CN112953002 A CN 112953002A CN 202110157691 A CN202110157691 A CN 202110157691A CN 112953002 A CN112953002 A CN 112953002A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- 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
- F01D17/26—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 fluid, e.g. hydraulic
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention relates to a safety optimization configuration method of a power transmitter for DEH regulation of a power plant participating unit, which comprises the following steps: the AC plug-in transmits AC to AD conversion on the CPU plug-in, and the AD conversion collects voltage and converts the voltage into a digital signal; the communication circuit on the CPU plug-in realizes the data acquisition and monitoring control through SCADA; through a keyboard on the MMI board, the CPU plug-in can be regulated and controlled through the MMI board, and then the device is controlled and processed; the CPU plug-in can output the electronic signal to the analog output board to carry out analog processing on the device. According to the power transmitter safety optimization configuration method for the power plant participating in the DEH regulation of the unit, the voltage and current double-loop configuration prevents the accuracy of the output value of the power transmitter from being influenced when a certain loop breaks down, the double-power-supply configuration can be switched to another power supply after any power supply loop is powered off, and the safety is greatly improved.
Description
Technical Field
The invention relates to the technical field of power plant equipment, in particular to a safety optimization configuration method of a power transmitter for a power plant to participate in DEH regulation of a unit.
Background
In the IGCC unit, two power transmitters are arranged on a steam turbine generator set panel to participate in the adjustment of DEH of the steam turbine generator set. DEH represents a digital electro-hydraulic control system of a steam turbine, which is an important part of a steam turbine generator unit of a power station and can control the opening of a main throttle valve and a throttle valve of the steam turbine to realize control on the rotating speed, load, pressure and the like of the steam turbine generator unit. Because the importance of the active power transmitter directly influences the operation of the generator set, the active power of the steam turbine is one of the important data acquired by the generator set, and all the active power transmitters of the steam turbine generator have great influence on the active power transmitter.
The original transmitter adopts traditional transmitter, has that the interference killing feature is poor, the unstable problem that causes power transmitter distortion of precision error, and the configuration of original transmitter if meet arbitrary a return circuit problem and all can lead to the active power distortion that the transmitter exported to DEH, seriously influences unit operation safety. The traditional transmitter does not have the functions of judging PT disconnection and CT disconnection. When a fault occurs, the traditional transmitter does not have a wave recording function, the DEH-regulated power transmitter has weak anti-interference capability and the input of a single-circuit power supply loop, a voltage loop and a current loop is unsafe.
Disclosure of Invention
The invention aims to provide a safety optimization configuration method of a power transmitter for a power plant to participate in DEH regulation of a unit, so as to solve the problems of weak anti-interference capability of the DEH regulated power transmitter and unsafety of input of a single-circuit power supply loop, a voltage loop and a current loop in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the safety optimization configuration method of the power transmitter for the DEH regulation of the power plant participating unit comprises the following steps:
s1: the AC plug-in transmits AC to AD conversion on the CPU plug-in, and the AD conversion collects voltage and converts the voltage into a digital signal;
s2: the communication circuit on the CPU plug-in realizes the data acquisition and monitoring control through SCADA;
s3: the CPU plug-in transmits the electronic signal to the MMI board, and the MMI board processes the electronic signal and transmits the processed electronic signal to the indicator light and the liquid crystal display;
s4: through a keyboard on the MMI board, the CPU plug-in can be regulated and controlled through the MMI board, and then the device is controlled and processed;
s5: the CPU plug-in can output the electronic signal to the analog output board to carry out analog processing on the device.
Preferably, in step S1, the AD conversion adopts a parallel structure, and compares the relationship between the signal level to be converted and the quantization levels of all levels, and performs interconversion between the analog signal and the digital signal, where the a/D and D/a conversion devices corresponding to the parallel structure are Flash-ADC and serial DAC, respectively.
Preferably, in the step S1, the ac plug-in is provided with a machine terminal PT1 three-phase voltage, a machine terminal PT3 three-phase voltage, a machine terminal protection CT three-phase current, a machine terminal measurement CT three-phase current, a machine terminal PT zero-sequence voltage, and a machine terminal CT zero-sequence current.
Preferably, in step S2, the SCADA collects process data and sends control commands to the field connected devices, the computers and software responsible for communicating with the field connected controllers, which are the RTU and PLC.
Preferably, in step S2, the communication circuit is connected to the power supply 1 plug-in and the power supply 2 plug-in.
Preferably, in step S3, the keyboard transmits the electronic signal to the MMI board by inputting information to the keyboard, the MMI board further processes the electronic signal, the MMI board transmits the further processed electronic signal to the CPU plug-in, the CPU plug-in performs corresponding control on the device system, then feeds back the controlled information to the MMI board, the indicator light on the MMI board is correspondingly turned on, and the liquid crystal display displays the feedback information.
Preferably, in step S4, the MMI board is operated by a keyboard on the MMI board, a simulation operation is selected, and a numerical value is input to the MMI board by the keyboard, the MMI board transmits information processing to the CPU card, the CPU card makes a corresponding instruction, and then transmits a signal to the simulation output board, thereby implementing the simulation test.
Compared with the prior art, the power transmitter safety optimization configuration method for the power plant participating in the DEH regulation of the unit has the beneficial effects that:
the DEH-adjusted power transmitter has a 32-bit processor and is high in calculation speed, and components such as a sampling board, an analog output board and a power module are all reliable in performance of industrial products. The fault recording function can record voltage, current, frequency, active power and other waveforms when a fault occurs. The voltage and current double-loop configuration can effectively prevent the accuracy of the output value of the power transmitter from being influenced when a loop has a fault. The dual power supply configuration can be switched to another power supply after any power supply loop is powered down, and the safety is greatly improved.
Drawings
FIG. 1 is a system diagram of the apparatus of the present invention;
FIG. 2 is a structural logic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the safety optimization configuration method of the power transmitter for the DEH regulation of the power plant participating unit comprises the following steps:
s1: the AC plug-in transmits AC to AD conversion on the CPU plug-in, and the AD conversion collects voltage and converts the voltage into a digital signal;
s2: the communication circuit on the CPU plug-in realizes the data acquisition and monitoring control through SCADA;
s3: the CPU plug-in transmits the electronic signal to the MMI board, and the MMI board processes the electronic signal and transmits the processed electronic signal to the indicator light and the liquid crystal display;
s4: through a keyboard on the MMI board, the CPU plug-in can be regulated and controlled through the MMI board, and then the device is controlled and processed;
s5: the CPU plug-in can output the electronic signal to the analog output board to carry out analog processing on the device.
Further, in step S1, the AD conversion adopts a parallel structure, and simultaneously compares the relationship between the signal level to be converted and the quantization levels of all levels, and performs interconversion between the analog signal and the digital signal, where the a/D and D/a conversion devices corresponding to the parallel structure are Flash-ADC and serial DAC, respectively.
Further, in the step S1, the ac plug-in is provided with a machine terminal PT1 three-phase voltage, a machine terminal PT3 three-phase voltage, a machine terminal protection CT three-phase current, a machine terminal measurement CT three-phase current, a machine terminal PT zero-sequence voltage, and a machine terminal CT zero-sequence current.
The voltage and current double-loop configuration can effectively prevent the accuracy of the output value of the power transmitter from being influenced when a loop has a fault.
Further, in step S2, the SCADA collects process data and sends control commands to the field connected devices, the computers and software responsible for communicating with the field connected controllers, which are the RTU and PLC.
Further, in step S2, the communication circuit is connected to the power supply 1 plug-in and the power supply 2 plug-in.
The dual power supply configuration can be switched to another power supply after any power supply loop is powered down, and the safety is greatly improved.
Further, in step S3, the keyboard transmits the electronic signal to the MMI board by inputting information to the keyboard, the MMI board further processes the electronic signal, the MMI board transmits the further processed electronic signal to the CPU plug-in, the CPU plug-in correspondingly adjusts and controls the device system, and then feeds back the adjusted and controlled information to the MMI board, the indicator light on the MMI board is correspondingly turned on, and the liquid crystal display displays the feedback information.
Further, in step S4, the MMI board is operated by a keyboard on the MMI board, a simulation operation is selected, and a numerical value is input to the MMI board by the keyboard, the MMI board transmits information processing to the CPU card, the CPU card makes a corresponding instruction, and then transmits a signal to the simulation output board, thereby implementing a simulation test.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. A power transmitter safety optimization configuration method for DEH regulation of a power plant participating unit is characterized by comprising the following steps: the power transmitter safety optimization configuration method for DEH regulation of the power plant participating unit comprises the following steps:
s1: the AC plug-in transmits AC to AD conversion on the CPU plug-in, and the AD conversion collects voltage and converts the voltage into a digital signal;
s2: the communication circuit on the CPU plug-in realizes the data acquisition and monitoring control through SCADA;
s3: the CPU plug-in transmits the electronic signal to the MMI board, and the MMI board processes the electronic signal and transmits the processed electronic signal to the indicator light and the liquid crystal display;
s4: through a keyboard on the MMI board, the CPU plug-in can be regulated and controlled through the MMI board, and then the device is controlled and processed;
s5: the CPU plug-in can output the electronic signal to the analog output board to carry out analog processing on the device.
2. The method for the safe optimized configuration of the power transmitter for the DEH regulation of the power plant participating unit according to claim 1, characterized in that: in step S1, the AD conversion adopts a parallel structure, and compares the relationship between the signal level to be converted and the quantization levels of all levels, and performs the conversion between the analog signal and the digital signal, where the a/D and D/a conversion devices corresponding to the parallel structure are Flash-ADC and serial DAC, respectively.
3. The method for the safe optimized configuration of the power transmitter for the DEH regulation of the power plant participating unit according to claim 1, characterized in that: in the step S1, the ac plug-in is provided with a machine end PT1 three-phase voltage, a machine end PT3 three-phase voltage, a machine end protection CT three-phase current, a machine end measurement CT three-phase current, a machine end PT zero-sequence voltage, and a machine end CT zero-sequence current.
4. The method for the safe optimized configuration of the power transmitter for the DEH regulation of the power plant participating unit according to claim 1, characterized in that: in said step S2, the SCADA collects process data and sends control commands to the field connected devices, the computers and software responsible for communicating with the field connected controllers, which are RTUs and PLCs.
5. The method for the safe optimized configuration of the power transmitter for the DEH regulation of the power plant participating unit according to claim 1, characterized in that: in step S2, the communication circuit is connected to the power supply 1 plug-in and the power supply 2 plug-in.
6. The method for the safe optimized configuration of the power transmitter for the DEH regulation of the power plant participating unit according to claim 1, characterized in that: in step S3, the keyboard inputs information, the keyboard transmits the electronic signal to the MMI board, the MMI board further processes the electronic signal, the MMI board transmits the further processed electronic signal to the CPU card, the CPU card correspondingly adjusts and controls the device system, and then feeds back the adjusted and controlled information to the MMI board, the indicator light on the MMI board is correspondingly turned on, and the liquid crystal display displays the feedback information.
7. The method for the safe optimized configuration of the power transmitter for the DEH regulation of the power plant participating unit according to claim 1, characterized in that: in step S4, the MMI board is operated by the keyboard on the MMI board, a simulation operation is selected, and a numerical value is input to the MMI board by the keyboard, the MMI board transmits information processing to the CPU card, the CPU card makes a corresponding instruction, and then transmits a signal to the simulation output board, thereby implementing a simulation test.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110157691.6A CN112953002A (en) | 2021-02-04 | 2021-02-04 | Power transmitter safety optimization configuration method for DEH (distributed energy optimization) regulation of power plant participating unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110157691.6A CN112953002A (en) | 2021-02-04 | 2021-02-04 | Power transmitter safety optimization configuration method for DEH (distributed energy optimization) regulation of power plant participating unit |
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Citations (3)
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| CN206490426U (en) * | 2017-01-22 | 2017-09-12 | 梁甜 | A kind of digital line protection measure and control device |
| CN207148214U (en) * | 2017-06-29 | 2018-03-27 | 青岛鸿瑞电力工程咨询有限公司 | Intelligent transfer device and power plant |
| CN110646666A (en) * | 2019-09-20 | 2020-01-03 | 浙江浙能嘉华发电有限公司 | High-precision network frequency homologous direct mining device and method thereof |
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2021
- 2021-02-04 CN CN202110157691.6A patent/CN112953002A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206490426U (en) * | 2017-01-22 | 2017-09-12 | 梁甜 | A kind of digital line protection measure and control device |
| CN207148214U (en) * | 2017-06-29 | 2018-03-27 | 青岛鸿瑞电力工程咨询有限公司 | Intelligent transfer device and power plant |
| CN110646666A (en) * | 2019-09-20 | 2020-01-03 | 浙江浙能嘉华发电有限公司 | High-precision network frequency homologous direct mining device and method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨睿: "火电机组控制用功率变送器工程应用研究", 《中国优秀硕士学位论文全文数据库（电子期刊）》, no. 8, pages 40 - 44 * |
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