CN202172308U - Intelligent distribution transformer terminal - Google Patents
Intelligent distribution transformer terminal Download PDFInfo
- Publication number
- CN202172308U CN202172308U CN2011203115314U CN201120311531U CN202172308U CN 202172308 U CN202172308 U CN 202172308U CN 2011203115314 U CN2011203115314 U CN 2011203115314U CN 201120311531 U CN201120311531 U CN 201120311531U CN 202172308 U CN202172308 U CN 202172308U
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- circuit
- interface circuit
- distribution transformer
- intelligent distribution
- power
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Abstract
The utility model discloses an intelligent distribution transformer terminal, relating to the electric power supply and distributing equipment field. The intelligent distribution transformer terminal comprises a core control part, a signal and data acquisition circuit, a data communication interface circuit, a man-machine interface circuit and a control output circuit, and the signal and data acquisition circuit, the data communication interface circuit, the man-machine interface circuit and the control output circuit are connected with the core control part separately. The intelligent distribution transformer terminal of the utility model has the characteristics of ingenious design, strong functions, various measurement data items, high precision, high reliability, convenient switching control configuration, agility, etc., also integrates various signal measurements, such as temperature, condensation, switch amount, etc., and is equipped with a relay to output and control so as to satisfy the requirements of an intelligent distribution network for running automation.
Description
Technical field
The utility model relates to the power supply and distribution of electric power apparatus field, specifically a kind of multi-functional intelligent distribution transformer terminals such as protection, measurement, control, communication that integrate.
Background technology
In the power supply and distribution of electric power system; Distribution transformer is a power equipment of voltage directly being distributed to low-voltage customer; Its service data is the important component part of whole power distribution network basic data; Comprising: three-phase voltage, three-phase current, meritorious (idle) power of three-phase, power factor, frequency, oil temperature (wet) degree etc., whether these data normally are that whether good distribution transformer move important reflection.Therefore, monitor the abnormal conditions of distribution transformer emerged in operation in real time and also in time control or solve, can realize stable, the optimization operation of electrical network.
Aspect power network monitoring and quality of power supply research; Because electric energy can receive the influence of various power loads in conveying and use; Particularly the use of large power power electronic appliance in distribution system is universal day by day, and these non-linear equipments cause very big pollution to electric power system.The imbalance of wave distortion, voltage flicker and three-phase alternating voltage or electric current etc. also is the key factor that influences the quality of power supply.The power quality problem that these factors are brought has caused various countries work about electric power person's great attention, and the new technology in research and development quality of power supply field has become the new focus of electric power system research field in recent years.At present abroad by means of the distribution monitoring device; Actively develop the research of relevant electric power quality monitoring; Its content comprises the expansion of the Power Theory that is suitable for; The proposition of new power quality analysis method, and based on the design of the quality of power supply control device of custom power technology and realization etc.
Domestic power distribution automation is started late, and is approximately the nineties in 20th century, and the more developed country lagged behind about 20 years.Because the develop rapidly of computer technology, the communication technology and electric utility in recent years, the power distribution network synthesis automation becomes inexorable trend.To the relatively weaker present situation of China's power distribution automation, domestic many producers and research unit all develop various types of power distribution automation products, especially intelligent power distribution monitoring terminal.Distribution transformer monitoring terminal is from early stage function singleness, the simple structure of communication mode, develops towards the direction of intellectuality, miniaturization, multifunction.
Along with developing rapidly of distribution system automation, the especially proposition of " intelligent grid " notion, monitoring of electric power terminal progressively becomes the focus of a research, and in engineering reality, has obtained preliminary application.At present; Domestic monitoring of electric power terminal mostly adopts single-chip microcomputer as master controller, because the restriction of disposal ability, the measurement of electrical quantity, the basic functions such as monitoring of transformer operating condition have only been realized in these terminals; And measuring accuracy is lower; Do not realize the Harmonics Calculation function, also far can not satisfy the intelligent grid requirements on Construction, about the technical standard of distribution transforming intelligent terminal; The IEC61850 of main reference International Electrotechnical Commission " substation communication network and system " series standard still lacks application specific standard at present.
The utility model content
The purpose of the utility model provides a kind of intelligent distribution transformer terminals, can realize the stable operation of electrical network.
To achieve these goals, the technical scheme that the utility model adopted is following:
The intelligence distribution transformer terminals; Comprise core control part, signal and data acquisition circuit, data communication interface circuit, man-machine interface circuit and controlling output circuit, said signal and data acquisition circuit, data communication interface circuit, man-machine interface circuit and controlling output circuit are connected with core control part respectively.
Said core control part embedded micro-processor is provided with output module, data disaply moudle, Keysheet module, clock module and communication module simultaneously.
The beneficial effect of the utility model:
The operating condition of distribution transformer or box distribution transformer on the real-time Monitoring Line of the utility model product ability, the post; In time find and processing accident and emergency; Can be on the spot or a distant place carry out reactive power compensation, realize the automatic Regulation function of on-load voltage regulation distribution transformer, can communicate through various communication modes and master station simultaneously; Realize the modification and the Long-distance Control capacitor switching of long-range calling, parameter; The running status that on main website electric power GIS platform, shows in real time monitored device, have deft design, powerful, the measurement data item is many, precision is high, reliability is high, switching is controlled characteristics such as configuration is convenient, flexible, it is also integrated multiple signal measurements such as temperature, condensation, switching value; And be equipped with relay output control, to satisfy the demand of intelligent power distribution net to the operation automation.
Description of drawings
Fig. 1 is the utility model circuit block diagram;
Fig. 2 is applied to supply the sketch map of distribution monitoring system for the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated:
As shown in Figure 1; The intelligence distribution transformer terminals; Comprise core control part, signal and data acquisition circuit, data communication interface circuit, man-machine interface circuit and controlling output circuit, said signal and data acquisition circuit, data communication interface circuit, man-machine interface circuit and controlling output circuit are connected with core control part respectively.
Core control part, embedded micro-processor is provided with output module, data disaply moudle, Keysheet module, clock module and communication module simultaneously.Adopt microprocessor to carry out the data acquisition and processing (DAP) of macrooperation amount, have action output, data demonstration, button processing, clock processing and communication function simultaneously.Measure portion is ripple 72 points of sampling weekly; And adopt fft algorithm from the input signal that is being mingled with each harmonic, to calculate the effective value of fundamental voltage, electric current; Utilize them that parameters such as active power, reactive power, power factor, electric degree are calculated; Simultaneously also can carry out the analysis of high order harmonic component, for reducing the influence of frequency departure, through the self adaptation adjustment sampling interval to measurement result; Also can guarantee each cycle uniform sampling even frequency changes, whole measurement device precision is high, antijamming capability is strong thereby make.
Signal and data acquisition circuit are gathered each item parameters of electric power in the power supply-distribution system in real time, and the data input core control part of being gathered is carried out data analysis and computing.The electrical parameter of gathering includes three-phase voltage, electric current, power factor, is up to 31 times voltage, current harmonics and harmonic voltage aberration rate, harmonic current aberration rate, supply frequency, zero phase voltage, Zero-phase current.The non-electrical parameter of gathering includes temperature of oil in transformer, transformer room's room temperature, transformer oil pressure spill over and transformer room's condensation degree.The electrical quantity that calculates includes active power, reactive power, active electrical degree, idle electric degree.
The Interface for digital communication circuit; Adopt high-performance ARM kernel single-chip microcomputer as the peripheral communication chip that expands of control assembly; To real time data calculate, statistical analysis; Generate various statistics, the while such as GPRS, micro power radio module, phone, audio frequency etc., is sent to distant place controlling center with real time data, historical data and statistic with multiple communication mode.
The man-machine interface circuit is implemented in demonstration on the picture, setting and warning function.Adopt the lcd screen of 128 * 64 dot matrix, support Chinese to show; Automatic picture, Chinese and English combine to show measurement data such as electric parameter, environment; Manual picture, the manual switching capacitor; Picture is set, sets various parameters; Warning picture, Chinese show overvoltage, under-voltage, aberration rate is too high, oily temperature is high excessively; Alarm indication.
The core control part parameter setting: electrorheological is than the CT value: 5/5～5000/5; Overvoltage protection: 240V～265V (overvoltage return difference 9V), step-length 5V; Under-voltage protection: 170V～185V, step-length 5V; The voltage distortion rate transfinites: 5.0%～20.0%, and step-length 0.5%; Power factor (PF) drops into thresholding: 0.85～0.95, and step-length 0.01; Power factor (PF) excision thresholding: 0.97～-0.95, step-length 0.01; Switching mode is set: but 12 tunnel combination in any; The switching time-delay: 10～120S is adjustable, step-length 10S; The nominal voltage electric current: actual input calibration value also is provided with; The oil temperature is too high, room temperature is too high, condensation is crossed high parameter setting.
Controlling output circuit, the result action that the analyzing and processing of the parameters of electric power that collects is obtained according to core control part, and the result is presented at man-machine interface, the output of controlling output circuit includes following mode:
12 tunnel reactive power compensations output is configurablely mended for three-phase, three-phase divides and mend or the compensation of both combinations altogether;
Have manual compensation and compensate two kinds of working methods, Intelligence Selection capacitor switching under the automated manner automatically;
Overvoltage, under-voltage, the too high switching that do not carry out of voltage resultant distortion rate, what switching was arranged then excises capacitor fast;
Load underloading, voltage transfinite making the switching locking;
The switching delay time can be set, and the secondary making time is guaranteed the capacitor discharge off greater than 300S at interval;
The transformer oil overvoltage is overflowed, the oil temperature is too high, then cancels switching capacitor for voltage protection and warning;
The too high blower fan that then starts of transformer room's room temperature, the too high heater that then starts of condensation is guaranteed transformer and capacitor operational environment.
Service condition:
Air themperature :-10 ℃～+ 65 ℃; Relative humidity:＜90%, atmospheric pressure: 80kPa～110kPa (height above sea level 2000m and following);
Environmental condition: do not allow stronger vibration and impact, no explosion hazard, non-corrosiveness gas and electro-conductive dust do not have serious mould and exist.
As shown in Figure 2; The basic framework of native system design meets three layers of basic function structure of grid automation system; Wherein distribution substation layer is handled the information gathering processing of power distribution network in the one's respective area; Accomplish functions such as one's respective area internal fault processing and control, and require information is forwarded to main station system according to main website; Simultaneously, receive the information that main website issues, cooperate the dispatching management task of accomplishing power distribution network under special circumstances with main website.The power distribution network substation generally is used for densely populated, the big city that distribution network disperses.The native system substation is adopted and is accomplished relevant function based on the concentrator of embedded microprocessor.The main website server is installed the GIS platform of research and development voluntarily, on electronic chart, can inquire about the geographical position and concrete real-time working condition parameter of each distribution transformer at any time.
The intelligence distribution transformer terminals is as the bottom of three-layer structure; Be installed in the other monitoring of each distribution transformer transformer running status; Analyze output and show according to the information that monitors, realize that various state parameter monitorings, reactive power compensation this locality/Long-distance Control switching, residual current protecting monitoring management, harmonic monitoring, three-phase imbalance are monitored, electric weight is made a copy of, functions such as telecommunication, warning, parameter setting and modification, transformer anti-theft.
Certainly; Above-mentioned explanation is not to be the restriction to the utility model; The utility model also be not limited in above-mentioned for example, variation, remodeling, interpolation or replacement that the technical staff in present technique field is made in the essential scope of the utility model also should belong to the protection range of the utility model.
Claims (2)
1. intelligent distribution transformer terminals; It is characterized in that: comprise core control part, signal and data acquisition circuit, data communication interface circuit, man-machine interface circuit and controlling output circuit, said signal and data acquisition circuit, data communication interface circuit, man-machine interface circuit and controlling output circuit are connected with core control part respectively.
2. intelligent distribution transformer terminals according to claim 1 is characterized in that: said core control part embedded micro-processor is provided with output module, data disaply moudle, Keysheet module, clock module and communication module simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203115314U CN202172308U (en) | 2011-08-25 | 2011-08-25 | Intelligent distribution transformer terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203115314U CN202172308U (en) | 2011-08-25 | 2011-08-25 | Intelligent distribution transformer terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172308U true CN202172308U (en) | 2012-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203115314U Expired - Fee Related CN202172308U (en) | 2011-08-25 | 2011-08-25 | Intelligent distribution transformer terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106447998A (en) * | 2016-12-22 | 2017-02-22 | 国网山东省电力公司鄄城县供电公司 | Intelligent distribution transformer monitoring terminal and system |
-
2011
- 2011-08-25 CN CN2011203115314U patent/CN202172308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106447998A (en) * | 2016-12-22 | 2017-02-22 | 国网山东省电力公司鄄城县供电公司 | Intelligent distribution transformer monitoring terminal and system |
| CN106447998B (en) * | 2016-12-22 | 2019-05-10 | 国网山东省电力公司鄄城县供电公司 | Intelligent Distribution transformer and monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QINGDAO HAIXIANG ELECTRIC POWER TECHNOLOGY CO., LT Free format text: FORMER OWNER: QINGDAO TAIGUANG RINON SOFT CO., LTD. Effective date: 20120704 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 266510 ROOM 410, SYNTHESIZED HOUSE, SHANDONGKEJI COLLEGE SCIENCE PARK, NO.579, QIANWANGANG ROAD, QINGDAO CITY ECONOMIC AND TECHNOLOGICAL DEVELOPMENT Z, SHANDONG PROVINCE TO: 266510 SHANDONGKEJI COLLEGE INDUSTRIAL PARK, NO.579, QIANWANGANG ROAD, QINGDAO CITY ECONOMIC AND TECHNOLOGICAL DEVELOPMENT Z, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120704 Address after: 266510 Shandong Industrial Park, 579 Bay Road, Qingdao economic and Technological Development Zone, China Patentee after: Qingdao Haixiang Electric Power Science & Technology Co., Ltd. Address before: 410 room 266510, comprehensive building of science and Technology Park, Shandong University of Science and Technology, 579 Bay Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: Qingdao Taiguang Runneng Software Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG HUASHANG ELECTRIC CO., LTD. Free format text: FORMER OWNER: QINGDAO HAIXIANG ELECTRIC POWER TECHNOLOGY CO., LTD. Effective date: 20150609 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 266510 QINGDAO, SHANDONG PROVINCE TO: 272509 JINING, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150609 Address after: Chen Xin Road Economic Development Zone 272509 Shandong city of Jining province Wenshang County to the south, Ning min Road West, Shuguang Road East Patentee after: Shandong Huashang Electric Co., Ltd. Address before: 266510 Shandong Industrial Park, 579 Bay Road, Qingdao economic and Technological Development Zone, China Patentee before: Qingdao Haixiang Electric Power Science & Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20170825 |