CN102738894A - Modularized intelligent power distribution terminal based on bus port - Google Patents
Modularized intelligent power distribution terminal based on bus port Download PDFInfo
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Abstract
The invention provides a modularized intelligent power distribution terminal based on a bus port. The modularized intelligent power distribution terminal comprises a signal collecting module, a digital value/switching value output module, a digital value/switching value input module, a human-computer interaction module, a communication module, a power supply module, a processor module and a memory module. With the adoption of the intelligent power distribution terminal provided by the invention, the characteristics of expandability and flexibility of the intelligent power distribution terminal can be realized, and the development period of a product is reduced, so that the power distribution terminal is suitable for rapid development of novel technologies, applications and services in the future.
Description
Technical field
The invention belongs to the power distribution network technical field, be specifically related to a kind of modularization intelligent distribution terminal based on EBI.
Background technology
Distribution terminal is the important component part of power distribution network, is positioned at basal layer.The criterion that the real time data of power distribution network, fault are handled automatically, the data such as operating condition of switchgear all derive from distribution terminal; The power supply of Fault Isolation, load transfer, the non-fault section of recovery, all be to go to carry out through distribution terminal to the branch/closing operation of switch on the feeder line, the reliability of distribution terminal work, real-time directly influence the reliability and the real-time of whole power distribution network.
According to home and abroad intelligent grid progress present situation; The construction of intelligent grid must be experienced long-term constantly a development and an improved process; Therefore; Be distributed in also should be able to the fast adaptation following various new technologies in intelligent power distribution terminal in the power distribution network, the development of application and service future, possess can expand, the characteristic of flexibility.At present; Domestic existing distribution terminal generally adopts integrated form, closed method for designing, and promptly the main function of equipment is realized by 2 ~ 3 circuit boards, adopts contact pin or soft arranging wire to connect between the plate level; Structure does not possess opening, and module replacing and ratio be difficulty.If will carry out the change and the expansion of function to it, then the PCB of the structure of equipment and realization major function all need design and make again, has prolonged the construction cycle, and has been difficult to realize flexible configuration.
For extensibility, flexibility and the shortening construction cycle of realizing the distribution terminal function, make up the intelligent power distribution terminal unified platform and established technical foundation for this reason.Existing distribution terminal autgmentability and flexibility are all relatively poor, and product development cycle and field adjustable time are long, and the workload of software/hardware is big, and the hardware total number of intelligent power distribution unit is more, makes the distribution terminal complex structure, not easy care.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the present invention provides a kind of modularization intelligent distribution terminal based on EBI.Adopt modular design concept and bus interface technology, realize the extensibility and the flexible characteristic at intelligent power distribution terminal, shorten the Products Development cycle, make distribution terminal adapt to the fast development of following new technology, application and service.
In order to realize the foregoing invention purpose, the present invention takes following technical scheme:
A kind of modularization intelligent distribution terminal based on EBI, said terminal comprise signal acquisition module, digital quantity/switching value output module, digital quantity/switching input module, human-computer interaction module, communication module, power module, processor module and memory module; Said signal acquisition module is gathered the ac/dc analog signal, and carries out the A/D conversion, gives processor with digital data transmission; Said digital signal is stored to memory module, and said processor module carries out analyzing and processing to digital signal, and sends control command to digital quantity/switching value output module; Said digital quantity/switching value output module is exported digital quantity/switching value to ancillary equipment after receiving control command; Digital quantity/switching input module obtains the operate condition of ancillary equipment, and feeds back to processor module and confirm; Said processor module carries out information interaction through human-computer interaction module and main website/user, realizes the auto-update of program simultaneously; Said power module converts AC power or back-up source into low-voltage dc power supply, is the power supply of said terminal.
Said signal acquisition module comprises interchange analog voltage/current Acquisition Circuit, DC simulation voltage/current Acquisition Circuit and A/D change-over circuit.
Said power module comprises AC-DC/DC-DC power supply circuits, stand-by power supply interface and battery charger;
Said digital quantity/switching input module comprises remote signalling, and digital quantity/switching value output module comprises remote control and capacitor switching control circuit.
Said communication module comprises Ethernet, RS485, GPRS/230M wireless module, micro power radio module, GPS module and WIFI module; Said terminal is through Ethernet interface or GPRS/230M wireless module and master station communication; Connect signal acquisition module through micro power radio module; Realize clock synchronization through GPS module and satellite communication; Wireless handheld terminal through WIFI module and user carries out information interaction or program upgrade.
Said signal acquisition module, digital quantity/switching value output module, digital quantity/switching input module, power module and communication module all are arranged on the corresponding function daughter board, and said function daughter board is connected with said backboard through the plug-in connector; Said processor module and memory module all are arranged on the said mainboard.
Said function daughter board all has unique numbering, is inserted on any slot of backboard; Whether the type and the measuring ability daughter board of the automatic recognition function daughter board of said processor module are connected on the backboard; If for it distributes unique address, said processor module carries out information interaction according to this address and this function daughter board.
Vertical mainboard of said backboard or parallel mainboard setting; When the vertical mainboard of backboard was provided with, said function daughter board plugged from the below, terminal, and is connected with backboard through the plug-in Europlug, and embedded and wall-hanging mounting means is adopted at said terminal; When the parallel mainboard of backboard was provided with, the function daughter board plugged from the rear, terminal, and was connected with backboard through the plug-in Europlug, and embedded mounting means is adopted at said terminal.
Said processor module comprises 32 embedded microprocessors, DDR2 SDRAM, NAND Flash, clock circuit and reset circuit, externally draws EBI, general purpose I/O and communication interface, and said 32 embedded microprocessors are monokaryon or double-core.
Said processor module and said human-computer interaction module are installed on the mainboard, and through bus driver EBI are connected with each slot of backboard.
Said human-computer interaction module comprises exterior storage interface, button/touch-screen, LCD and indicator light; The user sends request command through button/touch-screen to processor module; Said processor module carries out handled to order; Result shows that through LCD and indicator light the described request command menu switches, indication is switched, local control and the parameter setting.
Said EBI comprises processor local bus interface or PCI-Express EBI.
Said ancillary equipment comprises combination switch, circuit breaker, RCD, loaded capacity-regulated/voltage-regulation tap changer and switching value state sensor.
Compared with prior art, beneficial effect of the present invention is:
1. realization function modoularization can be convenient for changing module on demand and carry out the function expansion, realizes the upgrading of distribution terminal;
2. the employing bus interface technology makes the intelligent power distribution terminal interface have autgmentability and flexible characteristic, to adapt to the fast development of the following new technology of intelligent grid, application and service;
3. the processor module newly-increased function daughter board of detection and Identification automatically, and be its distribution address, the hot plug of support function daughter board;
4. the function daughter board vertically inserts backboard, is that natural draft cooling or forced ventilation cooling all realize than being easier to;
5. shortened product development cycle and field adjustable time, the workload of software/hardware is less, reduces the hardware total number of intelligent power distribution unit, makes distribution terminal simple in structure, easy care.
Description of drawings
Fig. 1 is the structure chart at intelligent power distribution terminal in the embodiment of the invention;
The function daughter board was connected sketch map from the below with backboard when Fig. 2 was the vertical mainboard of embodiment of the invention dorsulum;
The function daughter board was connected sketch map from the rear with backboard when Fig. 3 was the parallel mainboard of embodiment of the invention dorsulum;
Fig. 4 be embodiment of the invention dorsulum with the function daughter board between EBI be connected sketch map;
Fig. 5 is the sequential chart of processor module measuring ability daughter board in the embodiment of the invention;
Fig. 6 adopts the PCI-Express EBI to realize that the function daughter board is connected sketch map with mainboard in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Like Fig. 1; A kind of modularization intelligent distribution terminal based on EBI, said terminal comprise signal acquisition module, digital quantity/switching value output module, digital quantity/switching input module, human-computer interaction module, communication module, power module, processor module and memory module; Said signal acquisition module is gathered the ac/dc analog signal, and carries out the A/D conversion, gives processor with digital data transmission; Said digital signal is stored to memory module, and said processor module carries out analyzing and processing to digital signal, and sends control command to digital quantity/switching value output module; Said digital quantity/switching value output module is exported digital quantity/switching value to ancillary equipment after receiving control command; Digital quantity/switching input module obtains the operate condition of ancillary equipment, and feeds back to processor module and confirm; Said processor module carries out information interaction through human-computer interaction module and main website/user, realizes the auto-update of program simultaneously; Said power module converts AC power or back-up source into low-voltage dc power supply, is the power supply of said terminal.
Said signal acquisition module comprises interchange analog voltage/current Acquisition Circuit, DC simulation voltage/current Acquisition Circuit and A/D change-over circuit.
Said power module comprises AC-DC/DC-DC power supply circuits, stand-by power supply interface and battery charger;
Said digital quantity/switching input module comprises remote signalling, and digital quantity/switching value output module comprises remote control and capacitor switching control circuit.
Said communication module comprises Ethernet, RS485, GPRS/230M wireless module, micro power radio module, GPS module and WIFI module; Said terminal is through Ethernet interface or GPRS/230M wireless module and master station communication; Connect signal acquisition module through micro power radio module; Realize clock synchronization through GPS module and satellite communication; Wireless handheld terminal through WIFI module and user carries out information interaction or program upgrade.
Vertical mainboard of backboard or parallel mainboard setting; Like Fig. 2, when the vertical mainboard of backboard was provided with, said function daughter board was from the plug of below, terminal; And be connected with backboard through the plug-in Europlug; Embedded and wall-hanging mounting means is adopted at said terminal, has in the front panel that liquid crystal display screen is windowed, a perforate of LED light and button, and is parallel with mainboard; Like Fig. 3, when the parallel mainboard of backboard was provided with, the function daughter board plugged from the rear, terminal, and was connected with backboard through the plug-in Europlug, and embedded mounting means is adopted at said terminal.
Like Fig. 4-Fig. 6; Said signal acquisition module, digital quantity/switching value output module, digital quantity/switching input module, power module and communication module all are arranged on the corresponding function daughter board, and said function daughter board is connected with said backboard through the plug-in connector; Said processor module and memory module all are arranged on the said mainboard.Said EBI comprises processor local bus interface (16 bit data width) or PCI-Express EBI.Wherein, the PCI-Express EBI is used for intelligent power distribution terminal that performance, compatibility are had relatively high expectations; Necessarily require the terminal can adopt the processor local bus to realize being connected of function daughter board and backboard and cost had.
(1) processor local bus interface: processor local bus interface signal is drawn by mainboard, transfers to each function daughter board through backboard, and its signal definition is as shown in table 1:
Table 1
ADDR, DATA, READY, RST#, OE#, WE#, SYNC# and ACK# signal all are identical on each function daughter board, and chip selection signal, interrupt request singal and power enable signal are unique for each function daughter board.Because bus signals transmission range on backboard is longer, so each signal demand carries out terminal impedance coupling (resistance of one 10 ~ 30 Ω of series connection on driver), and PCB should have a complete ground level, to guarantee the signal integrity performance.For crosstalking between anti-stop signal, PCB layout is followed the 3W principle.In addition, comprise some subsequent use general purpose I/O signal (in table 1 and accompanying drawing 4, not listing) in the socket of each function daughter board, its function of the customized justice of user.
Processor regularly sends SYNC# and inquires about the ACK# signal, is used for the measuring ability daughter board and whether is connected to backboard and is in normal operating conditions.Each function daughter board adopts identical SYNC# and ACK# signal, and ACK# adopts the open collector or the open-drain way of output, to realize " line and " function.When measuring ability daughter board I, processor drags down CS0# and SYNC# signal simultaneously, just begins to detect the ACK# signal after the release.If the negative pulse of width greater than 1ms appears in the ACK# signal within 5ms, then processor module thinks that this function daughter board has connected and in running order, like Fig. 5.
(2) PCI-Express EBI: the PCI-Express EBI can be used for performance, in the intelligent power distribution terminal unified platform that compatibility is had relatively high expectations, but its set of signals reference PCI-Express standard 2.0 editions.Adopt on the mainboard plate this moment to have the PCI-Express interface processor, like the integrated DSP nuclear of TI company production and the high-performance microprocessor TMS320C6A8168 of Cortex-A8 (ARM) nuclear.Its execution mode is shown in accompanying drawing 5.Wherein, chip SN65LVDS105 converts the single-ended clock signal of active crystal oscillator into differential clock signal, offers the clock input pin (SERDES_CLKP and SERDES_CLKN) of the PCI-Express module of TMS320C6A8168; The data transmit-receive signal of PCI-Express module is connected on the slot of backboard.Because clock and the data-signal of PCI-Express are high-speed differential signal, so the signal driver end ac coupling capacitor of having connected, be used to stop the DC component of high speed signal, can protect chip for driving simultaneously, realize that many plates interconnect.Like this, the function daughter board of accord with PCI-Express standard can be inserted on the backboard and work.
Said function daughter board all has unique numbering, is inserted on any slot of backboard; Whether the type and the measuring ability daughter board of the automatic recognition function daughter board of said processor module are connected on the backboard; If for it distributes unique address, said processor module carries out information interaction according to this address and this function daughter board.
Said processor module comprises 32 embedded microprocessors, DDR2 SDRAM, NAND Flash, clock circuit and reset circuit, externally draws EBI, general purpose I/O and communication interface, and said 32 embedded microprocessors are monokaryon or double-core.
Said processor module and said human-computer interaction module are installed on the mainboard, and through bus driver EBI are connected with each slot of backboard.
Said human-computer interaction module comprises exterior storage interface, button/touch-screen, LCD and indicator light; The user sends request command through button/touch-screen to processor module; Said processor module carries out handled to order; Result shows that through LCD and indicator light the described request command menu switches, indication is switched, local control and the parameter setting.
Said ancillary equipment comprises combination switch, circuit breaker, RCD, loaded capacity-regulated/voltage-regulation tap changer and switching value state sensor.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although the present invention has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: still can specific embodiments of the invention make amendment or be equal to replacement; And do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (13)
1. modularization intelligent distribution terminal based on EBI, it is characterized in that: said terminal comprises signal acquisition module, digital quantity/switching value output module, digital quantity/switching input module, human-computer interaction module, communication module, power module, processor module and memory module; Said signal acquisition module is gathered the ac/dc analog signal, and carries out the A/D conversion, gives processor with digital data transmission; Said digital signal is stored to memory module, and said processor module carries out analyzing and processing to digital signal, and sends control command to digital quantity/switching value output module; Said digital quantity/switching value output module is exported digital quantity/switching value to ancillary equipment after receiving control command; Digital quantity/switching input module obtains the operate condition of ancillary equipment, and feeds back to processor module and confirm; Said processor module carries out information interaction through human-computer interaction module and main website/user, realizes the auto-update of program simultaneously; Said power module converts AC power or back-up source into low-voltage dc power supply, is the power supply of said terminal.
2. the modularization intelligent distribution terminal based on EBI according to claim 1 is characterized in that: said signal acquisition module comprises interchange analog voltage/current Acquisition Circuit, DC simulation voltage/current Acquisition Circuit and A/D change-over circuit.
3. the modularization intelligent distribution terminal based on EBI according to claim 1, it is characterized in that: said power module comprises AC-DC/DC-DC power supply circuits, stand-by power supply interface and battery charger.
4. the modularization intelligent distribution terminal based on EBI according to claim 1, it is characterized in that: said digital quantity/switching input module comprises remote signalling, digital quantity/switching value output module comprises remote control and capacitor switching control circuit.
5. the modularization intelligent distribution terminal based on EBI according to claim 1 is characterized in that: said communication module comprises Ethernet, RS485, GPRS/230M wireless module, micro power radio module, GPS module and WIFI module; Said terminal is through Ethernet interface or GPRS/230M wireless module and master station communication; Connect signal acquisition module through micro power radio module; Realize clock synchronization through GPS module and satellite communication; Wireless handheld terminal through WIFI module and user carries out information interaction or program upgrade.
6. the modularization intelligent distribution terminal based on EBI according to claim 1; It is characterized in that: said signal acquisition module, digital quantity/switching value output module, digital quantity/switching input module, power module and communication module all are arranged on the corresponding function daughter board, and said function daughter board is connected with said backboard through the plug-in connector; Said processor module and memory module all are arranged on the said mainboard.
7. the modularization intelligent distribution terminal based on EBI according to claim 6 is characterized in that: said function daughter board all has unique numbering, is inserted on any slot of backboard; Whether the type and the measuring ability daughter board of the automatic recognition function daughter board of said processor module are connected on the backboard; If for it distributes unique address, said processor module carries out information interaction according to this address and this function daughter board.
8. the modularization intelligent distribution terminal based on EBI according to claim 7 is characterized in that: vertical mainboard of said backboard or parallel mainboard setting; When the vertical mainboard of backboard was provided with, said function daughter board plugged from the below, terminal, and is connected with backboard through the plug-in Europlug, and embedded and wall-hanging mounting means is adopted at said terminal; When the parallel mainboard of backboard was provided with, the function daughter board plugged from the rear, terminal, and was connected with backboard through the plug-in Europlug, and embedded mounting means is adopted at said terminal.
9. the modularization intelligent distribution terminal based on EBI according to claim 1; It is characterized in that: said processor module comprises 32 embedded microprocessors, DDR2 SDRAM, NAND Flash, clock circuit and reset circuit; Externally draw EBI, general purpose I/O and communication interface, said 32 embedded microprocessors are monokaryon or double-core.
10. the modularization intelligent distribution terminal based on EBI according to claim 9; It is characterized in that: said processor module and said human-computer interaction module are installed on the mainboard, and through bus driver EBI are connected with each slot of backboard.
11. the modularization intelligent distribution terminal based on EBI according to claim 10, it is characterized in that: said human-computer interaction module comprises exterior storage interface, button/touch-screen, LCD and indicator light; The user sends request command through button/touch-screen to processor module; Said processor module carries out handled to order; Result shows that through LCD and indicator light the described request command menu switches, indication is switched, local control and the parameter setting.
12. the modularization intelligent distribution terminal based on EBI according to claim 9 is characterized in that: said EBI comprises processor local bus interface or PCI-Express EBI.
13. the modularization intelligent distribution terminal based on EBI according to claim 1 is characterized in that: said ancillary equipment comprises combination switch, circuit breaker, RCD, loaded capacity-regulated/voltage-regulation tap changer and switching value state sensor.
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| CN103401311A (en) * | 2013-08-08 | 2013-11-20 | 浙江威奇电气有限公司 | Intelligent power distribution terminal |
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| CN105006888A (en) * | 2015-05-29 | 2015-10-28 | 天津市凯源新能电气有限公司 | Digital intelligent power monitoring system |
| CN105958647A (en) * | 2016-06-15 | 2016-09-21 | 国家电网公司 | Comprehensive measurement and regulation-control apparatus and method for active power distribution network |
| CN108134683B (en) * | 2016-12-01 | 2021-06-11 | 腾讯科技（深圳）有限公司 | Terminal and bus architecture implementation method |
| CN108134683A (en) * | 2016-12-01 | 2018-06-08 | 腾讯科技（深圳）有限公司 | A kind of implementation method of terminal and bus architecture |
| CN109217462A (en) * | 2017-06-29 | 2019-01-15 | 平高集团有限公司 | A kind of intelligent distribution transformer terminals suitable for rural power grids |
| CN107482768A (en) * | 2017-07-13 | 2017-12-15 | 中国电力科学研究院 | It is a kind of based on modular power information collection and load management in one terminal device |
| CN107959348A (en) * | 2017-12-27 | 2018-04-24 | 上海欣能信息科技发展有限公司 | A kind of modular distribution power automation terminal |
| CN109149779A (en) * | 2018-10-15 | 2019-01-04 | 国网河南省电力公司孟州市供电公司 | A kind of acquisition device and method of power equipment data |
| CN109917723A (en) * | 2019-04-11 | 2019-06-21 | 江苏云涌电子科技股份有限公司 | A kind of circuit and method based on CPLD technology controllable multi-route on/off |
| CN109917723B (en) * | 2019-04-11 | 2024-02-02 | 江苏云涌电子科技股份有限公司 | Circuit and method for controlling on-off of multi-path power supply based on CPLD technology |
| CN112087052A (en) * | 2020-08-13 | 2020-12-15 | 天津清源华越科技有限公司 | Intelligent power distribution terminal |
| CN112415306A (en) * | 2020-11-03 | 2021-02-26 | 广东电网有限责任公司电力科学研究院 | Intelligent detection device for distribution automation equipment module |
| CN112859650A (en) * | 2021-01-08 | 2021-05-28 | 南京南瑞信息通信科技有限公司 | Machine room rotating ring monitoring device |
| WO2023093409A1 (en) * | 2021-11-26 | 2023-06-01 | 广东电网有限责任公司江门供电局 | Power distribution terminal based on modular configuration, and topology model verification method and apparatus therefor |
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