CN202094705U - Compact intelligent distribution transformer terminal - Google Patents
Compact intelligent distribution transformer terminal Download PDFInfo
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- CN202094705U CN202094705U CN2011201572048U CN201120157204U CN202094705U CN 202094705 U CN202094705 U CN 202094705U CN 2011201572048 U CN2011201572048 U CN 2011201572048U CN 201120157204 U CN201120157204 U CN 201120157204U CN 202094705 U CN202094705 U CN 202094705U
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Abstract
The utility model discloses a compact intelligent distribution transformer terminal which consists of a main board, a base plate and a display board which are sequentially connected; wherein the base plate comprises a power supply, a signal conditioning circuit and a remote control interface circuit; the main board comprises a central processing unit, a communication interface circuit, a remote signaling interface circuit, a telemetering interface circuit, a switching circuit and a compensating control circuit; and the display board comprises a TFT-LCD (Thin Film Transistor Liquid Crystal Display) screen, a press key and an indicator light. The compact intelligent distribution transformer terminal adopts a dual core processor, and the DSP (Digital Signal Processor) and the ARM (Advanced RISC Machines) have clear division of labor, thereby improving the integral work efficiency and avoiding the complexity and unreliability of PCB (printed circuit board) design, brought by adopting discrete chips; as a WIFI (Wireless Fidelity) module is internally arranged, a user handheld terminal can perform data interaction conveniently so as to avoid the complex operation; the compact intelligent distribution transformer terminal supports various communication modes and provides standard communication module connector so as to meet the requirements of different customers; the compact intelligent distribution transformer terminal is provided with an LCD ( liquid crystal display) screen with the function of touching and an abundant human-computer interface, therefore, the operation of man-machine interaction can be concise and convenient.
Description
Technical field:
The utility model relates to a kind of terminal, is specifically related to a kind of simple intelligence distribution transformer terminals.
Background technology:
The distribution transformer monitoring terminal is to be used to monitor distribution transformer, and distribution line running status and the idle terminal unit of compensation power distribution network are core with the digital signal processor DSP, have real-time data acquisition, electric quantity metering, history data store, fault alarm function.Adopt LCDs to show running status on the spot, be applicable to occasions such as low voltage electric network monitoring running state and low pressure dynamic passive compensation.Can optimize the distribution operational mode by monitoring the operation conditions of transformer; Break down or during misoperation, report to the police rapidly, in time recover normal power supply, reduce interruption duration, guarantee the safe operation of transformer; The out-of-limit time of recording voltage, the calculating voltage qualification rate, thus reasonable control level level is improved power supply quality.
At present, traditional Distribution Transformer Terminal Unit (TTU) is adopted in most of power distribution stations, and its major function is functions such as three-phase voltage/current measurement, record, statistical analysis, capacitor switching control and protection.The structure of existing distribution transformer monitoring terminal as shown in Figure 1, terminal comprises power supply, A/D convertor circuit, processor, memory and communication module, interface circuit, LCD screen, button and indicator light; Described processor is connected with described A/D convertor circuit with described memory, described interface circuit, described communication module, described LCD screen respectively; Described A/D convertor circuit is connected with described instrument transformer modulate circuit again.Along with the construction and the development of intelligent grid, to informationization, automation and interactive development, traditional Distribution Transformer Terminal Unit can not satisfy user's demand in the power distribution station.
The utility model content:
At the deficiencies in the prior art; the utility model is to provide a kind of simple intelligence distribution transformer terminals; operations such as traditional distribution transformer monitoring, control, protection and quality of power supply management are deepened and expanded; have functions such as interactive management, flexible man-machine interaction, multiple communication mode, security protection simultaneously, realized informationization, the automation and interactive of power distribution station.
The utility model provides a kind of simple intelligence distribution transformer terminals, and its improvements are, are made up of the display panel, mainboard and the base plate that link to each other successively; Described base plate comprises power supply, modulate circuit and remote control interface circuit; Described mainboard comprises CPU, communication interface circuit, remote signalling interface circuit, telemetry interface circuit, change-over circuit and compensation control circuit; Described display panel comprises TFT-LCD screen, button and the indicator light that band touches.
The terminal of first preferred version that the utility model provides, its improvements are that described modulate circuit is the instrument transformer modulate circuit; Described change-over circuit is an A/D convertor circuit, comprises modulus conversion chip;
The described processor that is connected described mainboard after described instrument transformer modulate circuit and modulus conversion chip link to each other again.
The terminal of second preferred version that the utility model provides, its improvements are that described CPU comprises dual core processor, memory, clock circuit and reset circuit; Described memory, described clock circuit and described reset circuit are connected described dual core processor respectively.
The terminal of the 3rd preferred version that the utility model provides, its improvements are that described communication interface circuit comprises remote communication module, local communication module, WIFI module, RS485 interface circuit; Described remote communication module, described local communication module, described WIFI module, described RS485 interface circuit connect described CPU respectively.
The terminal of the 4th preferred version that the utility model provides, its improvements are that described compensation control circuit is the thyristor switchable capacitor control interface circuit; Described thyristor switchable capacitor control interface circuit is connected with described CPU by data/address bus.
The terminal of the 5th preferred version that the utility model provides, its improvements are that described WIFI module is a USB interface WIFI module.
The terminal of the more preferably scheme that the utility model provides, its improvements are that described dual core processor is OMAP-L138.
The terminal of another preferred version that the utility model provides, its improvements be, described local communication module be Ethernet micropower wireless carrier module; Described remote communication module be GPRS the 230M wireless module.
Compared with the prior art, the beneficial effects of the utility model are:
The utility model employing dual core processor, the DSP and the ARM division of labor are clear and definite, have improved whole operating efficiency, complexity and unreliability that the PCB that has also avoided the employing separate chip to bring simultaneously designs;
The built-in WIFI module of the utility model terminal, and wireless Web Server service is provided, the user can carry out data interaction easily by handheld terminal, avoids stepping on troublesome operation such as bar;
The utility model is supported multiple communication mode, and the communication module interface of standard is provided, to satisfy different customer demands;
The utility model possesses the LCD screen and the abundant man-machine interface of band touch function, makes that the operation of man-machine interaction is succinct, convenient;
The utility model adopts external OLED to stop sending information such as electricity, power utility check to the management of user's real-time release total rate of electricity, power consumption, the expense of urging, and can make the user understand the information relevant with electricity consumption in time, easily;
Simple intelligence distribution transformer terminals of the present utility model is in conjunction with the intelligentized development trend of rural power grids; operations such as traditional distribution transformer monitoring, control, protection and quality of power supply management are deepened and expanded; have functions such as interactive management, flexible man-machine interaction, multiple communication mode, security protection simultaneously, realized informationization, the automation and interactive of power distribution station.
Description of drawings
The structure chart of the existing distribution transformer monitoring terminal that Fig. 1 provides for the utility model.
The simple intelligence distribution transformer terminals hardware module structure chart that Fig. 2 provides for the utility model.
The hardware principle of the simple intelligence distribution transformer terminals that Fig. 3 provides for the utility model and the connection layout of ancillary equipment thereof.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
As shown in Figure 1, for having the structural representation of distribution transformer monitoring terminal now.Terminal comprises power supply, A/D convertor circuit, processor, memory and communication module, interface circuit, LCD screen, button and indicator light; Described processor is connected with described A/D convertor circuit with described memory, described interface circuit, described communication module, described LCD screen respectively; Described A/D convertor circuit is connected with described instrument transformer modulate circuit again.
As shown in Figure 2, be simple intelligence distribution transformer terminals hardware module structure chart.
Present embodiment is made up of the display panel, mainboard and the base plate that link to each other successively; Base plate comprises power supply, modulate circuit and remote control interface circuit; Mainboard comprises CPU, communication interface circuit, remote signalling interface circuit, telemetry interface circuit, A/D convertor circuit and reactive power compensation control interface circuit; Display panel comprises TFT-LCD screen, button and the indicator light that band touches.
Modulate circuit is the instrument transformer modulate circuit; Change-over circuit comprises modulus conversion chip; The described processor that is connected described mainboard after instrument transformer modulate circuit and modulus conversion chip link to each other again.CPU comprises dual core processor, memory, clock circuit and reset circuit; Memory, clock circuit and reset circuit are connected dual core processor respectively.Dual core processor is OMAP-L138.
Communication interface circuit comprises remote communication module, local communication module, WIFI module, RS485 interface circuit, and remote communication module, local communication module, WIFI module, RS485 interface circuit connect CPU respectively.Described local communication module be Ethernet micropower wireless carrier module; Described remote communication module be GPRS the 230M wireless module.The WIFI module is a USB interface WIFI module.
Compensation control circuit is the thyristor switchable capacitor control interface circuit; The thyristor switchable capacitor control interface circuit is connected with CPU by data/address bus.
The hardware configuration of present embodiment is as shown in the table.
As shown in Figure 3, be the hardware principle of simple intelligence distribution transformer terminals and the connection layout of ancillary equipment thereof.
The intelligence distribution transformer terminals has adopted dual core processor OMAP-L138 (the DSP nuclear+ARM nuclear of 375MHz) and jumbo memory, utilizes the DSP unit to carry out data acquisition, signal processing and control in real time; ARM then realizes man-machine interaction, storage, communication function etc. by embedded OS.
Simple intelligence distribution transformer terminals is applicable to below the 100kVA that the rural power grids intelligent power distribution platform district that load level is lower has realized following function.
1) monitoring of distribution transformer.Modulate circuit by base plate is connected the collection that the mainboard dual core processor is realized voltage, electric current, the calculating of power factor with modulus conversion chip; The statistics of analysis of harmonic and three-phase imbalance; Voltage fluctuation, flickering, the monitoring of falling and interrupting temporarily.The A/D conversion chip adopts the AD7656 of ADI company, has 16 bit resolutions, and sample rate can reach 250ksps, has high s/n ratio, low-power consumption, cost performance advantages of higher simultaneously.
2) protection of distribution transformer.Realize overvoltage, overcurrent, overload and the under-voltage protection of transformer by analyzing voltage, the current signal gathered,, then, realize self-protection by the Remote Control Interface control turnover wiretap of base plate if overvoltage, overcurrent, under-voltage or overload phenomenon occur; Utilize telemetry interface monitoring temperature of oil in transformer, realize the overtemperature protection of transformer.
3) incident and alarming processing.By the external sounding of the Remote Control Interface of base plate light device, utilization sound, light and voice mode are alarmed, and have automatic record simultaneously, recollect and reporting functions.
4) human-computer interaction function.Present embodiment adopts the TFT-LCD screen of band touch function, provides and enriches easy-to-use man-machine interface; Stop sending information such as electricity, power utility check to the management of user's real-time release total rate of electricity, power consumption, the expense of urging, can make the user understand the information relevant in time, easily with electricity consumption; The long-range wireless access way (WIFI interface, Web Server service) that then adopts carries out man-machine interaction with handheld terminal.
5) user power utilization information monitoring.Have electric energy meter data acquisition, electric power meter monitoring of working condition, power supply Power Quality Detection and data processing, storage, transfer function.
6) management through quantification.Utilize the various parameter modifications and the abnormality of RS485 interface monitoring electric energy meter, and it is carried out status analysis, alarm and transmission.Its abnormal information can transfer to main website by remote communication module.
7) aftercurrent action protecting.Comprise the monitoring of residual electricity flow valuve, the alarm of RCD decompression, electric leakage alarming, earth leakage protective motion detection, data processing, storage and transmission.
8) Transformer's Condition Monitoring.Present embodiment connects temperature of oil in transformer by telemetry interface, and the monitoring with remote mode realization temperature of oil in transformer realizes the overtemperature protection of transformer; Utilize the state of remote signalling interface monitoring turnover wiretap.
9) load management.Present embodiment receives control command and parameter by remote communication module, utilizes Remote Control Interface to carry out switch trip or combined floodgate, thereby realizes the closed-loop control of power definite value, the control of electric weight definite value, the control of rate definite value and distant place control.
10) quality of power supply management.Present embodiment is realized the compensation based on the reactive power of TSC by the external combination switch of thyristor switchable capacitor control interface circuit; Possessing three-phase imbalance simultaneously administers and the line loss management function.
11) security protection.Present embodiment is monitored key facilities such as transformers in real time by the external Infrared Detectors of remote signalling interface, protects it not stolen.
12) communication function.Comprise long-range and local communication function, support the communication mode of multiple standards.The telecommunication mode comprises fiber optic Ethernet private network communication, the communication of GPRS wireless public network, the communication of 230M wireless private network; Local communication mode comprises Ethernet passive optical network (EPON) communication, micro power radio communication, power line carrier communication, RS485 etc.
13) interactive management.The WIFI module (RT2070) of present embodiment internal USB interface, and wireless Web Server service is provided, the user can carry out the management of platform district by handset; Connect external OLED by RS485 or wave point, stop sending information such as electricity, power utility check to the management of user's real-time release total rate of electricity, power consumption, the expense of urging; Take rational power structure and power mode by peak and valley time electricity price strategy guiding user, the load of balance power distribution station, thereby the peak load shifting of realization electricity consumption.
Should be noted that at last: only illustrate that in conjunction with the foregoing description the technical solution of the utility model is not intended to limit.Those of ordinary skill in the field are to be understood that: those skilled in the art can make amendment or are equal to replacement embodiment of the present utility model, but these modifications or change are all among the claim protection range that application is awaited the reply.
Claims (8)
1. a simple intelligence distribution transformer terminals is characterized in that, is made up of the display panel, mainboard and the base plate that link to each other successively; Described base plate comprises power supply, modulate circuit and remote control interface circuit; Described mainboard comprises CPU, communication interface circuit, remote signalling interface circuit, telemetry interface circuit, change-over circuit and compensation control circuit; Described display panel comprises TFT-LCD screen, button and the indicator light that band touches.
2. terminal as claimed in claim 1 is characterized in that, described modulate circuit is the instrument transformer modulate circuit; Described change-over circuit is an A/D convertor circuit, comprises modulus conversion chip;
The described processor that is connected described mainboard after described instrument transformer modulate circuit and modulus conversion chip link to each other again.
3. terminal as claimed in claim 1 is characterized in that described CPU comprises dual core processor, memory, clock circuit and reset circuit; Described memory, described clock circuit and described reset circuit are connected described dual core processor respectively.
4. terminal as claimed in claim 1 is characterized in that, described communication interface circuit comprises remote communication module, local communication module, WIFI module, RS485 interface circuit; Described remote communication module, described local communication module, described WIFI module, described RS485 interface circuit connect described CPU respectively.
5. terminal as claimed in claim 1 is characterized in that, described compensation control circuit is the thyristor switchable capacitor control interface circuit; Described thyristor switchable capacitor control interface circuit is connected with described CPU by data/address bus.
6. terminal as claimed in claim 1 is characterized in that, described WIFI module is a USB interface WIFI module.
7. terminal as claimed in claim 3 is characterized in that, described dual core processor is OMAP-L138.
8. terminal as claimed in claim 4 is characterized in that, described local communication module be Ethernet micropower wireless carrier module; Described remote communication module be GPRS the 230M wireless module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201572048U CN202094705U (en) | 2011-05-17 | 2011-05-17 | Compact intelligent distribution transformer terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201572048U CN202094705U (en) | 2011-05-17 | 2011-05-17 | Compact intelligent distribution transformer terminal |
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| CN202094705U true CN202094705U (en) | 2011-12-28 |
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| CN2011201572048U Expired - Lifetime CN202094705U (en) | 2011-05-17 | 2011-05-17 | Compact intelligent distribution transformer terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390931A (en) * | 2012-05-08 | 2013-11-13 | 苏州工业园区讯贝智能系统有限公司 | Power distribution system and device with cloud terminal function |
| CN104836344A (en) * | 2015-05-25 | 2015-08-12 | 南京新联能源技术有限责任公司 | Distribution transform monitoring system based on WIFI wireless communication |
| CN106849362A (en) * | 2017-03-13 | 2017-06-13 | 珠海博威电气股份有限公司 | A kind of integrated platform area intelligence distribution transformer terminals device |
| CN109713786A (en) * | 2017-10-26 | 2019-05-03 | 上海置信电气股份有限公司 | A kind of power distribution station intelligence distribution transformer terminals |
| CN110797975A (en) * | 2018-08-01 | 2020-02-14 | 中国电力科学研究院有限公司 | Intelligent transformer area system and management method |
-
2011
- 2011-05-17 CN CN2011201572048U patent/CN202094705U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390931A (en) * | 2012-05-08 | 2013-11-13 | 苏州工业园区讯贝智能系统有限公司 | Power distribution system and device with cloud terminal function |
| CN104836344A (en) * | 2015-05-25 | 2015-08-12 | 南京新联能源技术有限责任公司 | Distribution transform monitoring system based on WIFI wireless communication |
| CN106849362A (en) * | 2017-03-13 | 2017-06-13 | 珠海博威电气股份有限公司 | A kind of integrated platform area intelligence distribution transformer terminals device |
| CN109713786A (en) * | 2017-10-26 | 2019-05-03 | 上海置信电气股份有限公司 | A kind of power distribution station intelligence distribution transformer terminals |
| CN110797975A (en) * | 2018-08-01 | 2020-02-14 | 中国电力科学研究院有限公司 | Intelligent transformer area system and management method |
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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: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140327 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140327 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140327 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |