CN1482521A - Electric automation system of power plant - Google Patents
Electric automation system of power plant Download PDFInfo
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- CN1482521A CN1482521A CNA03153449XA CN03153449A CN1482521A CN 1482521 A CN1482521 A CN 1482521A CN A03153449X A CNA03153449X A CN A03153449XA CN 03153449 A CN03153449 A CN 03153449A CN 1482521 A CN1482521 A CN 1482521A
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Abstract
The invention discloses an electric automation system for use in a power plant, which comprises monitoring computer system and network layer, communication processing machine, on site bus layer and observe and control protecting equipment layer, the monitoring computer system and network layer includes computers, backup computers and virtual data processing unit computers, the communication processing machine and the on site bus layer includes communication processing machine, DPU communication processing machine, the observe and control protection device layer is connected to miscellaneous communication processing machines through the on site bus. The system can accomplish full range of electric automation application function.
Description
Technical field
The present invention relates to automatic field electric in a kind of electric system, particularly relate to the electrical monitoring system of a kind of layered distribution type in the power plant.
Background technology
Along with the technical progress of power industry, the automatization level of power plant's operation improves day by day, requires boiler of power plant, steam turbine and the integrated operation of electric realization, and this not only comprises boiler, steam turbine robotization but also comprises electric robotization.The electric part of power plant is divided into station service part, network control part and sends out change unit part.Wherein a station service and a change group partly are directly connected to the production and the operation of power plant; Network control partly is the pith that power plant and power transmission network are got in touch.
At present, most of power plant all have the DCS system that lays particular emphasis on steam turbine, boiler robotization control, in newly-built and reconstruction power plant, widely applied with the distributed operation monitoring system of the leading power plant of Thermal Automation part (DCS), considered less the automatic operating of electric part.Information such as the measurement of electrical system, protection are moved, adjusted, emergency review can't be reacted in the DCS system.Adopt cable to be connected the cost height between electrical equipment (motor, transformer, isolating switch etc.) and the DCS measurement and control unit.The supervisory system that power plant electrical monitoring and robotization incorporate entire power plant becomes pressing for of power plant.The realization of power plant electrical automated system will be directly perfect the monitoring range of DCS system, will improve the automatization level of power plant's operation greatly.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned defective, the supervisory system that monitoring of adaptation power plant electrical and robotization incorporate entire power plant is pressing for of power plant, a kind of power plant electrical automated system has been proposed, described system realizes that by the following technical solutions described power plant electrical automated system comprises:
Supervisory computer system and network layer, this layer comprises principal computer, is equipped with computing machine and virtual data processing unit computing machine, and they are connected by two Dual-Ethernet EtherNet, active and standby computing machine is formed typical electrical monitoring system, adopt two-shipper, double-network redundant warm standby mode to carry out work, so that guarantee its reliability, described virtual data processing unit computing machine is used to realize the network communication of electrical monitoring system and control system of power plant DCS;
Communication processor and fieldbus layer, this layer comprises data processing unit (DPU), communication processor, DPU communication processor, and they are connected by the Lonworks fieldbus, described communication processor is used for transmitting data by fieldbus Lonworks to Ethernet EtherNet and RS232, and its attached device is carried out data message processing and stipulations conversion;
The measuring and controlling protective device layer, this layer comprises Microcomputer Protection, measure and control device, described Microcomputer Protection, measure and control device (7) are connected with communication processor by the Lonworks fieldbus, are used for the device of system is protected and observing and controlling.
Described Microcomputer Protection, measure and control device and communication processor adopt the Lonworks field bus communication, and the mechanical floor communication protocol adopts IEC870-5-101, ModBus, other main flow producer stipulations etc.; Adopt Dual-Ethernet to communicate by letter between communication processor and the electric monitoring computer system, adopt supervisory system layer stipulations, as: IEC870-5-104, other main flow producer stipulations etc.
Described Microcomputer Protection, measure and control device (7) comprise route protection measure and control device, tranformer protection measure and control device, motor protection measure and control device, motor differential protection measure and control device, control module and other protection measure and control devices.
Adopt the advantage of this system to be: adopt the field bus communication technology, the backward robotization mode of the direct-connected transmission of analogue signal of replacement cables, equipment is installed on the spot, with realize being connected by exchanges data between DCS, a large amount of measurements, umbilical cable can be saved, transmitter can be omitted, remarkable in economical benefits.The available electric information amount of new system is greatly abundant, and exchanges unrestricted; Can realize the electric automatization application function that operating analysis, picture demonstration, report generation, printing, man-machine interface, logout, warning, emergency review, anti-misoperation locking etc. are abundant.
Description of drawings
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is that supervisory computer system of the present invention and network layer constitute synoptic diagram;
Fig. 2 is the communication processor data flowchart among the present invention;
Fig. 3 is virtual data processing unit of the present invention writes a process synoptic diagram from data to supervisory system;
Fig. 4 is supervisory system issues remote control by the virtual data processing unit an implementation synoptic diagram.
Embodiment
Fig. 1 is that supervisory computer system of the present invention and network layer constitute synoptic diagram.As shown in Figure 1, power plant electrical automated system of the present invention comprises:
Supervisory computer system and network layer (ground floor), this layer comprises principal computer CSPA1, is equipped with computing machine CSPA2 and virtual data processing unit computing machine SDPU3, and by two Dual-Ethernet EtherNet101, EtherNet102 connects them, active and standby computing machine CSPA1, CSPA2 forms typical electrical monitoring system, adopt two-shipper, double-network redundant warm standby mode to carry out work, so that guarantee its reliability, described virtual data processing unit computing machine SDPU3 is used to realize the network communication of electrical monitoring system and control system of power plant DCS; Communication processor and fieldbus layer (second layer), this layer comprises data processing unit DPU4, communication processor 5, DPU communication processor 6, and they are connected by Lonworks fieldbus 8, described DPU communication processor 6 is used to receive the data of Lonworks fieldbus 8, transmit data to Ethernet EtherNet101, Ethernet EtherNet102, transmit data by RS232 to DPU4, and handle the communication transmitting data message of its attached device and carry out the stipulations conversion.The Industry Control field bus technique of a Lonworks widespread use, traffic rate are 78K-1.25M bps; In power automation, use in a large number.Observing and controlling, protective device are communicated by letter with CSE200 communication processor employing Lonworks fieldbus 8, the mechanical floor communication protocol, as: IEC870-5-101, ModBus, main flow producer stipulations etc.; Adopt Dual-Ethernet to communicate by letter between CSE200 and the electric monitoring computer system, supervisory system layer stipulations, as: IEC870-5-104, main flow producer stipulations etc.CSE200 then is called CSE200-DPU as communicating by letter with DPU.The motor protection measure and control device relevant with thermal control is connected with two RS232 with DPU by CSE200-DPU, enters the chain logic of DPU thermal control, and controlled by DPU.
Protection measure and control device layer (the 3rd layer), this layer microcomputer protecting controller comprise route protection measure and control device, tranformer protection measure and control device, motor protection measure and control device, motor differential protection measure and control device, control module and other protection measure and control devices.These protection measure and control devices are connected with communication processor by Lonworks fieldbus 8; General on-the-spot installation of CSE200 communication processor, the smart machine of dispersion is managed in support with LonWorks fieldbus 8, RS485 or RS232 unit interface mode, by special packet parsing task analyzing device message, the measurement data arrangement is the task visit of orderly database for the telemechanical stipulations, message queue into FIFO is filled in the response of remote signalling displacement, remote control, remote regulating, activate telemechanical stipulations task.The telemechanical task connects terminal management system, for example scheduling station or local master station with the telemechanical stipulations form of standard by RS232 serial telemechanical interface or high-speed industrial Ethernet.The telemechanical stipulations that can select during configuration at present have IEC101, IEC104, DNP3.0, CDT, MODBUS and SC1801.The CSE200 serial port is supported the baud rate from 300 to 57600bps, and the capacity of Ethernet is 10M, supports twisted-pair cable or optical cable Ethernet mode.CSE200 can also monitor the information of each equipment, port except can reporting and submitting the actual physical amount of device own, the empty remote signalling of generating apparatus communication failure and port communication fault, and notice main website end overhauls.When judging the device communication failure, the measurement data of reporting and submitting is then put the data invalid flag, to ensure the validity of main website data.Simultaneously, the database of CSE200 is also supported the synthetic of a plurality of remote signalling points, and like this under the condition of necessity, a plurality of relevant remote signalling can refresh a data point simultaneously with one, are convenient to main website end configuration data.For example, the fault alarm signal of multiple arrangement can synthesize a total alarm signal to drive the electric whistle of main website.
The Ethernet fixed configurations of CSE200 special-purpose monitoring stipulations, can support the CSPA2000 main website.These stipulations are based on Ethernet UDP communication, and CSE200 reports and submits to main website by a udp port circulation and has remote measurement, remote signalling and the distant arteries and veins information that quality is described, and inserts in real time and send remote signalling displacement, SOE, remote control response message.The UDP message of CSE200 sends in the multicast mode, and the message between a plurality of CSE200 devices work in the physics network segment following time, can effectively prevent mutually collides.The CPU of CSE200 is 32 high speed communication process chip-68360 of technical grade of motorola inc, embedded real time operating system, the accident in can the real-time response supervisory system in quick collection site data.The design of the pcb board of technical grade, assurance device can mal-condition at the scene under reliably working.On-the-spot group screen installation is convenient in flat cabinet design.Use CSE200 to expand the traffic capacity of commercial PC front end processor, and with the commercial correspondance net realization of the existing communication of equipment and supervisory system physically with stipulations on effective isolation, strengthened the reliability of its communication, also be beneficial to the standardization of main station system.
Fig. 2 is the communication processor data flowchart among the present invention.As shown in Figure 2, for the CSE200 communication processor 5 among Fig. 1, this CSE200 receives the data message of Microcomputer Protection, measure and control device 7 among Fig. 1 by fieldbus Lonwork interface, carries out message and handles.CSE200 makes an explanation to message, therefrom obtains unit address, data directory, data, data is write the real-time data base of CSE200 self.CSE200 timing data are taken out from real-time data base, by the Dual-Ethernet interface, CSPA main frame 1 in Fig. 1 or CSPA standby host 2 send data.The control command of CSPA main frame 1 is issued CSE200 by Ethernet, and CSE200 issues destination apparatus by fieldbus Lonworks interface.For the CSE200-DPU communication processor 6 among Fig. 1, except that above-mentioned functions, CSE200 data are taken out from real-time data base regularly, by serial ports, the DPU data processing unit 4 in Fig. 1 sends data.The control command of DPU data processing unit 4 is issued CSE200 by serial ports, and CSE200 issues destination apparatus by fieldbus Lonworks interface.
Fig. 3 is virtual data processing unit SDPU of the present invention writes a process synoptic diagram from data to supervisory system.For the SDPU virtual data processing unit 3 among Fig. 1, communicate by letter with CSPA main frame 1 or CSPA standby host 2 among Fig. 1 by Ethernet 101, guarantee in time the refreshing of real time data on the SDPU.SDPU regularly gets real-time database data (remote measurement YC, remote signalling YX, distant arteries and veins YM).Change if judge remote signalling data Y X, then it is write the DCS system,,, pass to DCS, otherwise abandon according to ' the SBP mechanism of DCS ' by Ethernet 102.Change if judge telemetry YC or distant arteries and veins data Y M, and do not exceed the zone of reasonableness of variation, then it is write the DCS system,,, pass to DCS according to ' the SBP mechanism of DCS ' by Ethernet 2.If judge that telemetry YC or distant arteries and veins data Y M are constant or exceed the zone of reasonableness of variation, then abandon.
Fig. 4 is that the DCS supervisory system issues the implementation synoptic diagram of remote control to final measure and control device by virtual data processing unit SDPU.Genset DCS assigns control command to SDPU virtual data processing unit 3 by Ethernet 2; SDPU assigns this control command to CSPA main frame 1 by Ethernet 1; CSPA main frame 1 is assigned this control command to CSE200 communication processor 5 or CSE200-DPU communication processor 6 by Ethernet 1; CSE200 assigns this control command to Microcomputer Protection, measure and control device 7 by fieldbus Lonworks, and the protection measure and control device is finally carried out this control command.
Because some above-mentioned communication processors and route protection measure and control device, tranformer protection measure and control device, motor protection measure and control device, motor differential protection measure and control device, control module and other protection measure and control devices etc. can use the equipment of prior art; therefore; the necessity that does not further describe for the concrete formation of said apparatus; but; those skilled in the art can be according to the present invention the technical scheme that limits of claim increase and decrease some modification such as device grade, these are revised all within the protection domain of claims of the present invention.
Claims (3)
1, a kind of power plant electrical automated system, described power plant electrical automated system comprises:
Supervisory computer system and network layer, this layer comprises principal computer (1), is equipped with computing machine (2) and virtual data processing unit computing machine (3), and by two Dual-Ethernet EtherNet (101,102) they are connected, active and standby computing machine is formed typical electrical monitoring system, adopt two-shipper, double-network redundant warm standby mode to carry out work, so that guarantee its reliability, described virtual data processing unit computing machine (3) is used to realize the network communication of electrical monitoring system and control system of power plant DCS;
Communication processor and fieldbus layer, this layer comprises data processing unit DPU (4), a plurality of communication processor (5-1,5-2), DPU communication processor, and they are connected by Lonworks fieldbus (8), described a plurality of communication processor (5-1,5-2) be used for transmitting data to Ethernet EtherNet (101,102) and RS232, and its attached device is carried out data message processing and stipulations conversion by Lonworks fieldbus (8);
Measuring and controlling protective device layer, this layer comprise Microcomputer Protection, measure and control device (7), and described Microcomputer Protection, measure and control device (7) are connected with communication processor by Lonworks fieldbus (8), are used for the device of system is protected and observing and controlling.
2, system according to claim 1, its feature adopts Lonworks fieldbus (8) communicate by letter as for: described Microcomputer Protection, measure and control device (7) with communication processor, the employing of mechanical floor communication protocol IEC870-5-101, ModBus, other main flow producer stipulations; Adopt Dual-Ethernet to communicate by letter between communication processor and the electric monitoring computer system, adopt supervisory system layer stipulations, as: IEC870-5-104, other main flow producer stipulations.
3, system according to claim 1 and 2, its feature as for: described Microcomputer Protection, measure and control device (7) comprise route protection measure and control device, tranformer protection measure and control device, motor protection measure and control device, motor differential protection measure and control device, control module and other protection measure and control devices.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03153449 CN1267796C (en) | 2003-08-14 | 2003-08-14 | Electric automation system of power plant |
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| CN 03153449 CN1267796C (en) | 2003-08-14 | 2003-08-14 | Electric automation system of power plant |
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| CN1482521A true CN1482521A (en) | 2004-03-17 |
| CN1267796C CN1267796C (en) | 2006-08-02 |
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| CN 03153449 Expired - Fee Related CN1267796C (en) | 2003-08-14 | 2003-08-14 | Electric automation system of power plant |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368949C (en) * | 2005-04-28 | 2008-02-13 | 南京科远控制工程有限公司 | Automatic control system based on artificial intelligence for heat-engine plant |
| CN101378334B (en) * | 2008-09-25 | 2011-04-06 | 卡斯柯信号有限公司 | Communication method based on dual-network redundant universal network model |
| CN1972287B (en) * | 2006-12-05 | 2011-11-30 | 深圳市国电南思***控制有限公司 | Communication protocol record analysis apparatus and its analysis method |
| CN102541014A (en) * | 2012-01-11 | 2012-07-04 | 北京四方继保自动化股份有限公司 | Thermotechnical electrical integrated control system for thermal power plant |
| CN103197652A (en) * | 2013-04-12 | 2013-07-10 | 北京四方继保自动化股份有限公司 | Profibus communication control device for heat-engine plant integrated system |
| CN103559749A (en) * | 2013-11-01 | 2014-02-05 | 南京南瑞继保电气有限公司 | Process interlocking system and method of motors |
| CN107153389A (en) * | 2017-07-04 | 2017-09-12 | 卢云丽 | A kind of remote monitoriong of electric power system |
| CN108536111A (en) * | 2018-07-12 | 2018-09-14 | 华能烟台发电有限公司 | Control unit in thermal control DCS is avoided to instruct the processing method of zero after restarting |
-
2003
- 2003-08-14 CN CN 03153449 patent/CN1267796C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368949C (en) * | 2005-04-28 | 2008-02-13 | 南京科远控制工程有限公司 | Automatic control system based on artificial intelligence for heat-engine plant |
| CN1972287B (en) * | 2006-12-05 | 2011-11-30 | 深圳市国电南思***控制有限公司 | Communication protocol record analysis apparatus and its analysis method |
| CN101378334B (en) * | 2008-09-25 | 2011-04-06 | 卡斯柯信号有限公司 | Communication method based on dual-network redundant universal network model |
| CN102541014A (en) * | 2012-01-11 | 2012-07-04 | 北京四方继保自动化股份有限公司 | Thermotechnical electrical integrated control system for thermal power plant |
| CN103197652A (en) * | 2013-04-12 | 2013-07-10 | 北京四方继保自动化股份有限公司 | Profibus communication control device for heat-engine plant integrated system |
| CN103197652B (en) * | 2013-04-12 | 2015-03-25 | 北京四方继保自动化股份有限公司 | Profibus communication control device for heat-engine plant integrated system |
| CN103559749A (en) * | 2013-11-01 | 2014-02-05 | 南京南瑞继保电气有限公司 | Process interlocking system and method of motors |
| CN107153389A (en) * | 2017-07-04 | 2017-09-12 | 卢云丽 | A kind of remote monitoriong of electric power system |
| CN108536111A (en) * | 2018-07-12 | 2018-09-14 | 华能烟台发电有限公司 | Control unit in thermal control DCS is avoided to instruct the processing method of zero after restarting |
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| CN1267796C (en) | 2006-08-02 |
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Owner name: SIFANG HUANENG ELECTRIC POWER NETWORK CONTROL SYST Free format text: FORMER NAME: BEIJING SIFANG HUANENG GRID CONTROL SYSTEM CO., LTD. |
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Address after: No. four, 9 street, information industry base, Beijing, Haidian District: 100085 Co-patentee after: Sifang Jibao Automation Co., Ltd., Beijing Patentee after: Sifang Huaneng Power Grid Control System Co., Ltd. Address before: No. four, 9 street, information industry base, Beijing, Haidian District: 100085 Co-patentee before: Sifang Jibao Automation Co., Ltd., Beijing Patentee before: Beijing Sifang Huaneng Power Grid Control System Co., Ltd. |
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Granted publication date: 20060802 |