CN205049648U - A mould data acquisition collection device for intelligent power distribution cabinet - Google Patents
A mould data acquisition collection device for intelligent power distribution cabinet Download PDFInfo
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- CN205049648U CN205049648U CN201520762916.0U CN201520762916U CN205049648U CN 205049648 U CN205049648 U CN 205049648U CN 201520762916 U CN201520762916 U CN 201520762916U CN 205049648 U CN205049648 U CN 205049648U
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Abstract
The utility model provides a pair of a mould data acquisition collection device for intelligent power distribution cabinet, the cabinet level current transformer in the following load return circuit of 200A is saved to the electric current scheme of gathering of using board level current transformer and cabinet level current transformer to combine together, saves the cabinet inner space greatly. Include core board module and the CT module of being connected respectively with the core board module, IO module, communication module, HMI module, CT module package rubbing board level CT mutual -inductor and cabinet level CT mutual -inductor interface when rated load electric current less than or equal to setting value, use board level CT mutual -inductor directly to wear the load line, when the rated load electric current is greater than the setting value, use the external corresponding cabinet level CT of cabinet utmost point CT mutual -inductor interface, the core board module includes MCU main control unit for receive the analog signal of CT module collection and the data signal that the IO module was gathered, through reaching monitor platform on the communication module, control HMI module realizes human -computer interaction.
Description
Technical field
The utility model relates to distribution technique field, particularly relates to a kind of modulus harvester for intelligent power distribution cabinet, for the collection of the analog quantity of power circuit and digital quantity, process and transmission.
Background technology
Along with the continuous progress of global scientific and technological level, intelligent power distribution cabinet is progressively approved by people, and fast-developing.Intelligent power distribution cabinet integrated intelligent is measured and protecting control element, for local monitor display unit and remote side administration platform provide comprehensive on-the-spot real time data.These protecting control and measuring sensor can carry out modular combination and configuration according to Different field demand, matched field demand, also facilitate later stage upgrading simultaneously.
Current intelligent measure element is divided into 3 large classes, and one, intelligent electric instrument, by current-voltage transformer, analog quantity is connected to intelligent electric instrument, intelligent electric instrument carries out the measurement transmission of corresponding circuit electric parameter; Two, intelligent breaker, is implanted to isolating switch by the function of intelligent electric instrument, directly measures the electric parameter of its control loop and pass to monitor supervision platform by isolating switch; Three, intelligent acquisition measurement mechanism, intelligent acquisition measurement mechanism is by each loop concentrated collection of whole station power distribution cabinet, calculating, and uniform transmission is to monitor supervision platform.With intelligent acquisition measurement mechanism for measuring sensor become each intelligent power distribution cabinet producer publicity time high end configuration, because relative to two kinds of modes of above-mentioned intelligent electric instrument, intelligent breaker, intelligent acquisition measurement mechanism has the advantage that a device can measure whole station power distribution cabinet, and each loop of intelligent electric instrument and intelligent breaker will be equipped with a device, so intelligent acquisition measurement mechanism has obvious advantage from cost, the communication interface of monitor supervision platform can be saved simultaneously.But this mode is applied not extensive in the industry at present, and each manufacturer does not form unified standard yet.Mainly correlation technique is also not overripened, and because identical with intelligent electric instrument, each current transformer still needs to be equipped with, and can't save power distribution cabinet inner space, and the mode adopting intelligent acquisition measurement mechanism current line too to concentrate makes the inner cabling of power distribution cabinet become complicated.
Utility model content
The utility model is for the weak point of existing intelligent acquisition measurement mechanism, a kind of modulus harvester for intelligent power distribution cabinet is provided, sampling section is used the current acquisition scheme that plate level current transformer combines with cabinet level current transformer, be applied to intelligent acquisition measurement mechanism, the cabinet level current transformer of below 200A load circuit can be saved, greatly save space in cabinet.
The technical solution of the utility model is:
1. for a modulus harvester for intelligent power distribution cabinet, it is characterized in that, comprise core board module, CT module, I/O module, communication module, HMI module; Described core board module connects CT module, I/O module, communication module, HMI module respectively; Described CT module comprises plate level CT mutual inductor and cabinet level CT transformer interface, when nominal load current is less than or equal to setting value, use plate level CT mutual inductor directly to wear load line, when nominal load current is greater than setting value, use the external corresponding cabinet level CT of cabinet pole CT transformer interface; Described core board module comprises MCU master controller, and for calculation and control, receive the simulating signal of CT module acquires and the digital signal of I/O module collection, and be uploaded to monitor supervision platform by communication module, control HMI module realizes man-machine interaction.
2. described in, core board module also comprises AC/DC Switching Power Supply, for powering for whole equipment.
3. described in, CT module also comprises AD sampling A/D chip, and described CT mutual inductor will gather electric current to AD sampling A/D chip, and current analog signal is converted to digital signal and sends core board module to by SIP bus by AD sampling A/D chip.
4. I/O module described in is used for collection and the output of digital quantity, comprises photoelectric isolating circuit, and photoelectric isolating circuit input end connects the connection terminal gathering digital quantity, and output terminal connects core board module, by the output of core board module control signal.
5. I/O module common port described in adopts built-in 30V power supply.
6. HMI module described in comprises liquid crystal display driving chip HT16C23 and meets liquid crystal display LCD with being attached thereto, and described chip HT16C23 connects core board module, receives core board module data by iic bus, drives liquid crystal display, display corresponding information.
7. HMI module described in also comprises the key circuit with core board model calling, to facilitate on-the-spot human-computer interaction.
8. HMI module described in also has display backlight control circuit to connect core board module, for controlling display backlight.
9. HMI module described in also has reset Restore lead-in wire to connect core board module, for debug reset.
10. communication module described in adopts RS485 interface, is connected with Surveillance center by twisted-pair feeder, by core board module by USART Interface Controller, debugs for networking communication and maintenance.
The utility model has the advantages that:
The utility model is for the weak point of existing intelligent acquisition measurement mechanism, a kind of modulus harvester for intelligent power distribution cabinet is provided, sampling section is used the current acquisition scheme that plate level current transformer combines with cabinet level current transformer, be applied to intelligent acquisition measurement mechanism, in below 200A load circuit, use 200ACT directly to wear load line, directly use plate level CT image data, save cabinet level CT.Because cabinet level CT volume is comparatively large, and a loop (ABC three-phase) will use 3 CT, therefore can greatly save space in cabinet, effectively increase wiring space in cabinet, wiring is more prone to.And achieve the concentrated collection of each loop analog amount digital quantity of intelligent power distribution cabinet, each loop data is uploaded to monitor supervision platform by the RS485 interface of high reliability is unified simultaneously, reduce acquisition cost and communication cost, substantially increase the advantage that the utility model is applied in intelligent power distribution cabinet.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is CT modular circuit schematic diagram of the present utility model.
Fig. 3 is I/O module circuit theory diagrams of the present utility model.
Fig. 4 is HMI modular circuit schematic diagram of the present utility model.
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing to the modulus harvester of intelligent power distribution cabinet of the present utility model.
As shown in Figure 1, be the theory diagram of modulus harvester of the utility model intelligent power distribution cabinet.Comprise core board module, CT module, I/O module, communication module, HMI module; Core board module connects CT module, I/O module, communication module, HMI module respectively; CT module comprises plate level CT mutual inductor and cabinet level CT transformer interface, when nominal load current is less than or equal to setting value, use plate level CT mutual inductor directly to wear load line, when nominal load current is greater than setting value, use the external corresponding cabinet level CT of cabinet pole CT transformer interface; Core board module comprises MCU master controller, and for calculation and control, receive the simulating signal of CT module acquires and the digital signal of I/O module collection, and be uploaded to monitor supervision platform by communication module, control HMI module realizes man-machine interaction.
As shown in Figure 2, be CT modular circuit schematic diagram of the present utility model.CT module also comprises AD sampling A/D chip CS5463 chip.In the present embodiment, CT module adopts the CT mutual inductor of 200A and 5A two kinds of ratings, when nominal load current is less than or equal to 200A, 200ACT is used directly to wear load line, below 200A load circuit cabinet level CT can be saved, effectively increase wiring space in cabinet, wiring is more prone to; When nominal load current is greater than 200A, use 5ACT interface, external corresponding cabinet level CT, for measure more heavy load to meet the demand of special loop.In Fig. 2, CTA is 200ACT mutual inductor, when nominal load current is less than or equal to 200A, CTA is used directly to wear load line, when nominal load current is greater than 200A, by CON1 terminal (IA+, IA-) the i.e. 5ACT interface corresponding with CTA, external corresponding cabinet level CT.AD sampling A/D chip is CS5463 chip, CTA mutual inductor is by voltage stabilizing diode D2 in parallel and resistance R4, again by being connected IIN+, IIN-pin of AD sampling A/D chip behind the two ends of resistance R4 respectively resistance in series R5 and R6, by the current acquisition on load line to AD sampling A/D chip, collection of simulant signal is converted to digital signal and sends core board module to by SIP bus by AD sampling A/D chip.
As shown in Figure 3, be I/O module circuit theory diagrams of the present utility model.I/O module is used for collection and the output of digital quantity, comprise digital quantity open into output, drive part common port and adopt built-in 30V power supply (U2 in Fig. 3), open and comprise into part connection terminal S1, S2 that two-way gathers digital quantity, S1 connects the input end SS1 of a road photoelectric isolating circuit by resistance R17, and S2 connects the input end SS2 of another road photoelectric isolating circuit by resistance R18; Output terminal DI1, DI2 of photoelectric isolating circuit connect MCU master controller respectively, open, into part, digital signal acquiring is passed to core board module, output part and output signal by the output of core board module pilot relay, there is electromagnetic isolation, and the feature that interface power is large.
As shown in Figure 4, be HMI modular circuit schematic diagram of the present utility model.Comprise liquid crystal display driving chip HT16C23 and be attached thereto the liquid crystal display LCD connect, the respective pin of chip HT16C23 is connected with the respective pin of LCD, SDA with the SCL pin of chip HT16C23 is connected core board module, HT16C23 receives core board module data by iic bus, drive liquid crystal display, display corresponding information; Also comprise the key circuit with core board model calling, KEY1 with the KEY2 lead-in wire in Fig. 4 is connected core board module, to facilitate on-the-spot human-computer interaction; Also have display backlight control circuit in addition, for controlling display backlight, the LCDSEG lead-in wire in Fig. 4 connects core board module; In addition, reset Restore goes between and connects core board module, for debug reset.
In addition, communication module is the part that device and Surveillance center are linked up, and communication module adopts RS485 interface, and core board module is controlled it by USART interface, goes out to give Surveillance center by communication module by collected electric parameter and switching value data.
In above case study on implementation, be only one citing of the present utility model, for the personnel of correlative technology field, still can create the utility model in specific embodiments and applications and modify or equivalent replacement; In sum, this description should not be construed as restriction of the present utility model, and all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, and it is all encompassed in the middle of the protection domain of the utility model patent.
Claims (10)
1. for a modulus harvester for intelligent power distribution cabinet, it is characterized in that, comprise core board module, CT module, I/O module, communication module, HMI module; Described core board module connects CT module, I/O module, communication module, HMI module respectively; Described CT module comprises plate level CT mutual inductor and cabinet level CT transformer interface, when nominal load current is less than or equal to setting value, use plate level CT mutual inductor directly to wear load line, when nominal load current is greater than setting value, use the external corresponding cabinet level CT of cabinet pole CT transformer interface; Described core board module comprises MCU master controller, and for calculation and control, receive the simulating signal of CT module acquires and the digital signal of I/O module collection, and be uploaded to monitor supervision platform by communication module, control HMI module realizes man-machine interaction.
2. the modulus harvester for intelligent power distribution cabinet according to claim 1, is characterized in that, described core board module also comprises AC/DC Switching Power Supply, for powering for whole equipment.
3. the modulus harvester for intelligent power distribution cabinet according to claim 1 and 2, it is characterized in that, described CT module also comprises AD sampling A/D chip, described CT mutual inductor will gather electric current to AD sampling A/D chip, and current analog signal is converted to digital signal and sends core board module to by SIP bus by AD sampling A/D chip.
4. the modulus harvester for intelligent power distribution cabinet according to claim 1 and 2, it is characterized in that, described I/O module is used for collection and the output of digital quantity, comprise photoelectric isolating circuit, photoelectric isolating circuit input end connects the connection terminal gathering digital quantity, output terminal connects core board module, by the output of core board module control signal.
5. the modulus harvester for intelligent power distribution cabinet according to claim 4, is characterized in that, described I/O module common port adopts built-in 30V power supply.
6. the modulus harvester for intelligent power distribution cabinet according to claim 1 and 2, it is characterized in that, described HMI module comprises liquid crystal display driving chip HT16C23 and meets liquid crystal display LCD with being attached thereto, described chip HT16C23 connects core board module, core board module data is received by iic bus, drive liquid crystal display, display corresponding information.
7. the modulus harvester for intelligent power distribution cabinet according to claim 6, is characterized in that, described HMI module also comprises the key circuit with core board model calling, to facilitate on-the-spot human-computer interaction.
8. the modulus harvester for intelligent power distribution cabinet according to claim 6, is characterized in that, described HMI module also has display backlight control circuit to connect core board module, for controlling display backlight.
9. the modulus harvester for intelligent power distribution cabinet according to claim 6, is characterized in that, described HMI module also has reset Restore lead-in wire to connect core board module, for debug reset.
10. the modulus harvester for intelligent power distribution cabinet according to claim 1 and 2, it is characterized in that, described communication module adopts RS485 interface, is connected with Surveillance center by twisted-pair feeder, by core board module by USART Interface Controller, debug for networking communication and maintenance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520762916.0U CN205049648U (en) | 2015-09-29 | 2015-09-29 | A mould data acquisition collection device for intelligent power distribution cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520762916.0U CN205049648U (en) | 2015-09-29 | 2015-09-29 | A mould data acquisition collection device for intelligent power distribution cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474075A (en) * | 2018-12-13 | 2019-03-15 | 深圳市商宇电子科技有限公司 | A kind of precision distributing monitoring system |
| CN113588016A (en) * | 2021-09-29 | 2021-11-02 | 武汉金鑫华机械加工厂 | Power distribution cabinet acceptance testing device and system |
-
2015
- 2015-09-29 CN CN201520762916.0U patent/CN205049648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474075A (en) * | 2018-12-13 | 2019-03-15 | 深圳市商宇电子科技有限公司 | A kind of precision distributing monitoring system |
| CN113588016A (en) * | 2021-09-29 | 2021-11-02 | 武汉金鑫华机械加工厂 | Power distribution cabinet acceptance testing device and system |
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