CN102353860B - Intelligent detection system for transformer station computer monitoring system - Google Patents
Intelligent detection system for transformer station computer monitoring system Download PDFInfo
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- CN102353860B CN102353860B CN 201110212981 CN201110212981A CN102353860B CN 102353860 B CN102353860 B CN 102353860B CN 201110212981 CN201110212981 CN 201110212981 CN 201110212981 A CN201110212981 A CN 201110212981A CN 102353860 B CN102353860 B CN 102353860B
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Abstract
The invention belongs to the technical field of intelligent detection for power systems and relates to an intelligent detection system for a transformer station computer monitoring system. The intelligent detection system comprises an upper computer, a measurement and control device and an intelligent detection device, wherein the intelligent detection device comprises a power module, a network interface, a singlechip, a digital signal processor (DSP), a field programmable gate array (FPGA), a digital/analog (D/A) converter, a synchronization module, a switching value input interface, a switching value output interface, a liquid crystal display (LCD) and input equipment; the intelligent detection device is connected with the upper computer through the network interface; the measurement and control device is connected with the intelligent detection device through the power module; the measurement and control device is connected with the upper computer, the switching value input interface and the switching value output interface respectively; and the network interface, the singlechip, the DSP, the FPGA, the D/A converter and the power module are connected with one another sequentially. The intelligent detection system has the characteristics of high phase precision, short response time and the like, and can meet a test requirement of the relevant national standard on the detection for the transformer station computer monitoring system.
Description
Technical field
The invention belongs to Power System Intelligent detection technique field, particularly a kind of intelligent checking system for computer monitoring system of transformer substation.
Background technology
Computer monitoring system of transformer substation provides abundant field data for the management and running personnel, and the operation conditions of timely grasp primary system, security and the reliability of raising operation of power networks have been made significant contribution.From this angle, whether normally, reliably the computer monitoring system of transformer substation operation conditions will have influence on security and the reliability of operation of power networks.Therefore guarantee computer monitoring system of transformer substation stable, reliably move significant.
In order to guarantee computer monitoring system of transformer substation safety, operation stably, country has formulated a series of rules, as Q/GDW213-2008 " computer monitoring system of transformer substation factory acceptance rule of management " (FAT), Q/GDW214-2008 " computer monitoring system of transformer substation onsite acceptance rule of management " (SAT) and Q/GDW549-2010 " monitoring system of electric substation microcomputer type test unit technical conditions " etc., its content has contained factory acceptance and the onsite acceptance of computer monitoring system of transformer substation, supervisory system function and performance test etc. various aspects, having formulated some test indexs, is the foundation that computer monitoring system of transformer substation detects.
Domestic requirement according to above-mentioned rules is at present carried out computer monitoring system of transformer substation and is detected the many instruments of common needs configuration; for example; calibration power source, protection test instrument; millisecond meter etc.; some index (as SOE resolution, remote signalling storm) does not also have suitable instrument test; it is very inconvenient to work together, and causes the instrument resource waste.At present existing minority producer releases the checkout equipment that some have the integration test function at these problems, but the table source that the is integral type power source that these checkout equipments adopt, this kind power source adopts the transformer-coupled way of output, have that the phase place output accuracy is not high, output pulsation greatly when loading condition changed, three-phase exports shortcoming such as interact, and these equipment also do not have functions such as the test same period, response time test, snowslide test.Therefore, be necessary to develop a kind of high precision apparatus that detects at computer monitoring system of transformer substation, use this equipment can satisfy the demand of all kinds of computer monitoring system of transformer substation test ratings of listing in the relevant rules of country, thereby improve checkability and quality.
Summary of the invention
(1) technical matters
The present invention has solved not only that table source integral type power source phase place output accuracy is low, the linearity and degree of stability is poor, three-phase output interacts, load variations is to problems such as the output phase influence are big, also realize utilizing less equipment, finished the content measurement of every detection index of stipulating in the rules of national relevant computer monitoring system of transformer substation detection of formulating.In addition, the present invention has solved the technical matterss such as output temperature influence in accurate source by technology such as digital calibration and auto thermal compensations.
(2) technical scheme
The invention discloses a kind of intelligent checking system for computer monitoring system of transformer substation, comprise host computer and measure and control device, this intelligent checking system also comprises intelligent detection device, this intelligent detection device comprises power model, network interface, single-chip microcomputer, DSP, FPGA, D/A converter, synchronization module, switch value input interface, the switching value output interface, LCD and input equipment, this intelligent detection device links to each other with this host computer by this network interface, this measure and control device links to each other with this intelligent detection device by this power model, this measure and control device also respectively with this host computer, this switch value input interface and this switching value output interface link to each other, this network interface, single-chip microcomputer, DSP, FPGA, D/A converter and this power model link to each other successively, this DSP also respectively with this synchronization module, this switch value input interface and this switching value output interface link to each other, and this LCD links to each other with this FPGA respectively with input equipment.
Further, this power model comprises 1 sample resistance and 2 power amplifiers, the two ends of this sample resistance link to each other with load with the output terminal of this first power amplifier respectively, the input end in the same way of this first power amplifier connects this D/A converter, the reverse input end ground connection of this first power amplifier, the two ends that the input end in the same way of this second power amplifier, reverse input end are parallel to this sample resistance, the output terminal of this second power amplifier are connected on the line of the input end in the same way of this first power amplifier and this D/A converter.
Further, this intelligent detection device also comprises the ambient temperature compensation module, is used for gathering environment temperature and finishing temperature compensation automatically, and this ambient temperature compensation module links to each other with this DSP.
Further, this intelligent detection device also comprises alerting signal generation module, is used for sending alerting signal when this intelligent detection device breaks down, and this alerting signal generation module links to each other with this FPGA.
Further, this synchronization module comprises PGPS02 receiver and IRIG-B sign indicating number receiver, and this PGPS02 receiver and this IRIG-B sign indicating number receiver link to each other with this DSP respectively.
(3) beneficial effect
A kind of intelligent checking system for computer monitoring system of transformer substation provided by the invention, replaced table source integral type power source with high precision, the direct output type power model of high stability, phase accuracy reaches 0.05 grade, response time is less than 0.1 millisecond, have characteristics such as load capacity is strong, phase accuracy is high, the response time is few, can detect computer monitoring system of transformer substation, especially the test of systemic-functions such as response time test and slippage test; The high-speed switch amount output of 64 tunnel separate isolation is provided, has not interacted between each output, the idle contact mode is adopted in switching value output, can carry out batch testing to the measure and control device remote signalling easily; GPS system when realizes the synchronous detection of multiple devices in can going to the station to meet somebody outward, and SOE resolution, single device and system's remote measurement, remote signalling, remote control response time etc. are detected; The time synchronized function cooperates simulation output to respond characteristics rapidly, can be implemented in several Preset Time points, periodically exports remote signalling displacement and remote measurement sudden change, and system's avalanche condition handling property is tested.
Description of drawings
Fig. 1 is the structural representation of the intelligent checking system for computer monitoring system of transformer substation of the present invention.
Fig. 2 is the circuit diagram of table source integral type power source.
Fig. 3 is the circuit diagram of power model of the present invention.
Embodiment
Emulated data storage means for the electrical power system transient signal source of the present invention is described in detail as follows in conjunction with the accompanying drawings and embodiments.
Referring to Fig. 1, intelligent checking system 101 for computer monitoring system of transformer substation of the present invention, comprise host computer 102, measure and control device 103 and intelligent detection device 104, wherein intelligent detection device 104 comprises power model 105, network interface 106, single-chip microcomputer 107, DSP108, FPGA109, D/A converter 110, synchronization module 111, switch value input interface 112, switching value output interface 113, LCD114 and input equipment 115, intelligent detection device 104 links to each other with host computer 102 by network interface 106, measure and control device 103 links to each other with intelligent detection device 104 by power model 105, measure and control device 103 also can be connected with host computer 102 by RS232 or network interface, network interface 106, single-chip microcomputer 107, DSP108, FPGA109, D/A converter 110 links to each other successively with power model 105, DSP108 also respectively with synchronization module 111, switch value input interface 112 and switching value output interface 113 link to each other, and LCD114 links to each other with FPGA109 respectively with input equipment 115.Wherein, power model 105 is used to measure and control device that the input of analog quantity is provided, and its structure will be done hereinafter and be described in detail; Network interface 106 is Ethernet interface; Synchronization module 111 comprises PGPS02 receiver and IRIG-B sign indicating number receiver, be used for receiving gps clock signal in the transformer station, with the station in measuring and controlling equipment carry out to the time, finish the dependence test to SOE resolution, single device and system's remote measurement, remote signalling, remote control response time etc., and the synchronous measuring ability of realizing many measure and control devices in the station accordingly; Switch value input interface 112 comprises 5 way switch amount input channels, link to each other with the switching value output interface of measure and control device 103, can satisfy the requirement of the closed loop test same period and remote control response time test, switching value output interface 113 comprises the output channel of 64 tunnel separate isolation, switch value input interface with measure and control device 103 links to each other respectively, adopt circuit to accelerate design, can export fast in the mode of idle contact, time error can be carried out batch testing to the measure and control device remote signalling easily less than 0.1ms; Can observe test result by LCD114, and be aided with keyboard 115 and finish work such as arranging of parameter, keyboard 115 is the rotary encoder of band button.
In addition, intelligent detection device 104 also comprises ambient temperature compensation module 116 and alerting signal generation module 117, ambient temperature compensation module 116 links to each other with DSP108, alerting signal generation module 117 links to each other with FPGA109, ambient temperature compensation module 116 is used for gathering environment temperature and finishing temperature compensation automatically, alerting signal generation module 117 is used for sending alerting signal when intelligent detection device breaks down.
The power model 105 of the intelligent checking system 101 for computer monitoring system of transformer substation of the present invention obviously is different from existing power source, not only on structure the structure of power model is improved, and has more improved precision of system etc. from performance.Existing power source is table source integral type power source, what adopt is the transformer-coupled way of output, its circuit diagram as shown in Figure 2, table source integral type power source 201 comprises transformer 202, power amplifier 203 and direct current table 204, the output terminal of power amplifier 203 links to each other with primary side one end of transformer 202, the other end ground connection of transformer 202 primary sides, the reverse input end ground connection of power amplifier 203, the input end in the same way of power amplifier 203 links to each other with system controller 205, the secondary side of transformer 202 links to each other with load 206, the secondary side of transformer 202 also links to each other with system controller 205 through direct current table 204, the input signal that system controller 205 sends amplifies by transformer coupled by power amplifier 202 exports to load 206, simultaneously, the signal of this transformer 202 secondary sides output is fed back to system controller 205 after direct current table 204 detects, make system controller 205 further accurately control the output of this power source 201.Because the output feedback signal of this power source 201 measures by the direct current table, so the output accuracy of the power source of the type depends on the measurement Cheng Jingdu of direct current table, and during input signal process transformer, can produce exciting current, also can have influence on the output accuracy of analog quantity, the amplitude of analog quantity can be revised through the measurement of table, but its phase place can't be corrected, so cause phase place output to be difficult to control, the output response time of watch source integral type power source is slow, the output adjustment time needs 2s even longer time, can not realize the test of functions such as remote measurement response time.
Referring to Fig. 3, power model 105 of the present invention comprises 1 sample resistance 301 and 2 power amplifiers 302,303, the two ends of sample resistance 301 link to each other with output terminal and the measure and control device 103 of power amplifier 302 respectively, the input end in the same way of power amplifier 302 links to each other with D/A converter 110, the reverse input end ground connection of power amplifier 302, the input end in the same way of power amplifier 303 and reverse input end are parallel to the two ends of sample resistance 301, the output terminal of power amplifier 303 is connected on the line of the input end in the same way of power amplifier 302 and D/A converter 110, be exaggerated by power amplifier 302 through the input signal after D/A converter 110 conversions, input signal after the amplification exports measure and control device 103 to through sample resistance 301, at this moment, the voltage difference at sample resistance 301 two ends feeds back to the input end in the same way of power amplifier 302 through power amplifier 303, form direct closed loop coupling scheme, save the table of table source integral type power source and surveyed process, thereby reached the output effect of fast and stable.The output accuracy of this power model 105 is apparently higher than the output accuracy of existing table source integral type power source, and the linearity is good, response speed reaches the influence that is not subjected to load variations soon, its simulation output responds the function of the time synchronized of characteristics cooperation rapidly, can be implemented in several default time points and regularly export remote signalling displacement and remote measurement sudden change, can test system's avalanche condition handling property.
In addition, intelligent detection device 104 of the present invention can also not connect host computer 102, finish the test item of some computer monitoring system of transformer substation with measure and control device 103, as exchange fixed point check, the check of direct current fixed point, switching value verification etc., at this moment, can test parameter be set by input equipment 115, observe the parameter of setting and the result of measurement by LCD114, single-chip microcomputer 107, the trace routine that DSP108 and FPGA109 carry based on intelligent detection device 104, control synchronization module respectively and receive gps clock signal in the transformer station, gauge tap amount output interface 113 output switching values, the temperature compensation module that controls environment is gathered environment temperature, finish the automatic compensation of temperature, and control power model 105 sends combined-voltage and electric current to measure and control device 103, when this external system breaks down, alarm signal takes place in alerting signal generation module 117 under the control of FPGA109.
Above embodiment only is used for explanation the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (5)
1. intelligent checking system that is used for computer monitoring system of transformer substation, comprise host computer and measure and control device, it is characterized in that, described intelligent checking system also comprises intelligent detection device, described intelligent detection device comprises power model, network interface, single-chip microcomputer, DSP, FPGA, D/A converter, synchronization module, switch value input interface, the switching value output interface, LCD and input equipment, described intelligent detection device links to each other with described host computer by described network interface, described measure and control device links to each other with described intelligent detection device by described power model, described measure and control device also respectively with described host computer, described switch value input interface and described switching value output interface link to each other, described network interface, described single-chip microcomputer, described DSP, described FPGA, described D/A converter and described power model link to each other successively, described DSP also respectively with described synchronization module, described switch value input interface and described switching value output interface link to each other, described LCD links to each other with described FPGA respectively with described input equipment, wherein, described power model comprises 1 sample resistance and 2 power amplifiers, the two ends of described sample resistance link to each other with load with the output terminal of described first power amplifier respectively, the input end in the same way of described first power amplifier connects described D/A converter, the reverse input end ground connection of described first power amplifier, the input end in the same way of described second power amplifier, reverse input end is parallel to the two ends of described sample resistance, and the output terminal of described second power amplifier is connected on the line of the input end in the same way of described first power amplifier and described D/A converter.
2. the intelligent checking system for computer monitoring system of transformer substation according to claim 1, it is characterized in that, described intelligent detection device also comprises the ambient temperature compensation module, be used for gathering environment temperature and finishing temperature compensation automatically, described ambient temperature compensation module links to each other with described DSP.
3. the intelligent checking system for computer monitoring system of transformer substation according to claim 1 and 2, it is characterized in that, described intelligent detection device also comprises alerting signal generation module, be used for sending alerting signal when described intelligent detection device breaks down, described alerting signal generation module links to each other with described FPGA.
4. the intelligent checking system for computer monitoring system of transformer substation according to claim 3, it is characterized in that, described synchronization module comprises PGPS02 receiver and IRIG-B sign indicating number receiver, and described PGPS02 receiver and described IRIG-B sign indicating number receiver link to each other with described DSP respectively.
5. the intelligent checking system for computer monitoring system of transformer substation according to claim 1 and 2, it is characterized in that, described synchronization module comprises PGPS02 receiver and IRIG-B sign indicating number receiver, and described PGPS02 receiver and described IRIG-B sign indicating number receiver link to each other with described DSP respectively.
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| CN 201110212981 CN102353860B (en) | 2011-07-28 | 2011-07-28 | Intelligent detection system for transformer station computer monitoring system |
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| CN102608994A (en) * | 2012-03-15 | 2012-07-25 | 河北省电力研究院 | Running state simulation circuit for transformer cooling device |
| CN102854856A (en) * | 2012-08-29 | 2013-01-02 | 北京博电新力电气股份有限公司 | Controller based on scenario test of secondary equipment of intelligent substation |
| CN104076221A (en) * | 2014-07-09 | 2014-10-01 | 李善田 | Insulation monitoring device of intelligent network project control system controlled by 24 V direct current power supply |
| CN104467812B (en) * | 2014-12-08 | 2017-06-30 | 重庆跃达电力设备有限公司 | A kind of sample reference frequency-conversion circuit for power monitoring circuit device |
| CN104459403B (en) * | 2014-12-08 | 2017-05-17 | 重庆跃达电力设备有限公司 | Switching value power source circuit applied to electric power circuit monitoring device |
| CN106291159B (en) * | 2016-06-24 | 2021-06-25 | 国网江苏省电力公司南京供电公司 | Intelligent acceptance device and acceptance method for main station side power distribution automatic signals |
| CN106253484A (en) * | 2016-09-18 | 2016-12-21 | 国网河南伊川县供电公司 | A kind of for electricity substation secondary electric power system synchronous monitoring device and method |
| CN106610321B (en) * | 2016-12-27 | 2019-01-22 | 上海应用技术大学 | A kind of electrical equipment temperature monitoring device |
| CN108363033A (en) * | 2018-02-09 | 2018-08-03 | 国网山西省电力公司长治供电公司 | Intelligent substation metering secondary metering device composition error off-line measurement system |
| CN113110370B (en) * | 2021-03-10 | 2021-11-19 | 北京天能继保电力科技有限公司 | Test system and method |
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