CN204442007U - A kind of distribution network automated monitor terminal device - Google Patents
A kind of distribution network automated monitor terminal device Download PDFInfo
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- CN204442007U CN204442007U CN201420444676.5U CN201420444676U CN204442007U CN 204442007 U CN204442007 U CN 204442007U CN 201420444676 U CN201420444676 U CN 201420444676U CN 204442007 U CN204442007 U CN 204442007U
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Abstract
The utility model relates to a kind of distribution network automated monitor terminal device, this device comprises MCU module by this device of mould, and collection of simulant signal module, on-off model processing module, communication module, key-press digital display module and the MCU module to be connected respectively with MCU, described collection of simulant signal module comprises instrument transformer, amplifier modulate circuit and computation chip, instrument transformer collects voltage and current signal and converts-5V ~+5V voltage signal to through amplifier modulate circuit, carry out sampling for computation chip to calculate, MCU module reads the value of register in computation chip.The utility model realizes the collection of 64 tunnel remote signalling amounts, can monitor the controlled quentity controlled variable information of industry spot more reliably; The collection of one's duty energy 56 tunnel remote measurement amounts, better can monitor the analog signal at scene simultaneously; And the output of 20 tunnel remote control amounts, more effectively can carry out industry spot switch control rule.
Description
Technical field
The utility model relates to distribution network technology field, particularly relates to the automatically-monitored of power distribution network, relates to a kind of distribution network automated monitor terminal device in particular.
Background technology
Along with the development of national economy and the raising of living standards of the people, user is more and more high to the requirement of the quality of power supply.Mainly contain following index to the evaluation of custom power quality: one is quality of voltage, it comprises voltage deviation, voltage fluctuation (i.e. rate of qualified voltage); Two is frequencies; Three is power supply reliabilities, and it is power distribution network measuring user's continued power ability, and leading indicator refers to annual power supply reliability, i.e. the percentage of user's annual power-on time; Four is harmonic contents, should not higher than the content of regulation.Distribution network reliability has become the major issue that first power supply enterprise considers, is to improve power supply capacity, ensure power supply quality, has distribution network automatedly become a very urgent task.
Distribution is directly towards last link of power consumer in electric power system generating, transmission and disttrbution (sometimes also title power supply and electricity consumption).By controller switching equipment; comprise feeder line, distribution transformer, circuit breaker, compensation condenser, various switch formation power distribution network and relaying protection, automatics, measurement and measuring instrument and to communicate and control appliance forms a distribution system; run by certain rule, meet power consumer demand constantly with high-quality electric energy.With regard to China's electric power system, power distribution network refers to 10KV and following electrical network, comprises block switch, ring main unit, distribution transformer, power distribution station, switching station, community distribution, compensation condenser on transformer station 10KV outlet switch, post.In power distribution network, usually 110KV, 35KV level is called high pressure, 10KV level is called middle pressure, and 0.4KV level is called low pressure.
Summary of the invention
For correlative technology field document and above the deficiencies in the prior art, in a large amount of existing literature research with for a long time on the basis of association area Development Practice, the utility model proposes " a kind of distribution network automated monitor terminal device ", realize the beneficial effect of " improve power supply capacity, ensure power supply quality, be distribution network automated ".
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of distribution network automated monitor terminal device, this device comprises MCU module, and the collection of simulant signal module, on-off model processing module, communication module, key-press digital display module and the MCU module that are connected respectively with MCU module.Described collection of simulant signal module comprises instrument transformer, amplifier modulate circuit and computation chip, instrument transformer collects voltage and current signal and converts-5V ~+5V voltage signal to through amplifier modulate circuit, carry out sampling for computation chip to calculate, MCU module reads the value of register in computation chip.The communication that this device can realize 56 tunnel remote measurement amounts is uploaded, and remote measurement amount comprises Ua, Ub, Uc, Ia, Ib, Ic, 3U0,3I0, P, Q, Kwh, Kvh.Described on-off model processing module comprises intake collecting unit and outputs control unit, and the intake collected feeds back in MCU module by intake collecting unit, outputs control unit and carries out the closed of control switch according to the module remote control command of MCU.Described on-off model processing module remote signalling amount collection can realize 64 tunnels and gather.Described communication module comprises RS485 interface and Ethernet interface, and RS485 interface is used for portable machine debugging and uses, and Ethernet interface is used for uploading with the data retransmission of main website or substation, information, receives the guidance command that main website or substation are assigned.Described key-press digital display module comprises LED drive circuit, LED display and push button signalling collecting unit.The configurable 20 tunnel remote controls of this device export.This device also comprises configuration data collecting unit.Debounce module is provided with between described control module and on-off model processing module.
The beneficial effect that the utility model possesses is: the collection of 64 tunnel remote signalling amounts, can monitor the controlled quentity controlled variable information of industry spot more reliably.The collection of 56 tunnel remote measurement amounts, better can monitor the analog signal at scene.The output of 20 tunnel remote control amounts, more effectively can carry out industry spot switch control rule.
Accompanying drawing explanation
The system construction drawing of Fig. 1 the utility model specific embodiment;
The collection of simulant signal of Fig. 2 the utility model specific embodiment and modulate circuit;
The intake Acquisition Circuit of Fig. 3 the utility model specific embodiment;
Fig. 4 the utility model specific embodiment output control circuit;
485 communication interface circuits of Fig. 5 the utility model specific embodiment;
The ethernet communication interface circuit of Fig. 6 the utility model specific embodiment;
The system communication flow figure of Fig. 7 the utility model specific embodiment;
The intake collection of Fig. 8 the utility model specific embodiment and push button signalling gather debounce system construction drawing.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, to embodiment of the present utility model as involved control system, mutual annexation, and implementation method, be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present utility model, technical scheme.
As shown in Figure 1, this device is by collection of simulant signal module, on-off model processing module, communication module, key-press digital display module and MCU module for a kind of distribution network automated monitor terminal device; Described collection of simulant signal module is made up of instrument transformer and discharge circuit and computation chip, main effect instrument transformer is collected voltage and current signal to convert-5V ~+5V voltage signal to through amplifier modulate circuit, carry out sampling for computation chip to calculate, MCU module only need read the value of corresponding registers; On-off model processing module feeds back in MCU module by the intake collected, and simultaneously by the remote control command of MCU module, realizes by outputing part; Communication module is used for communicating between device with host computer; Key-press digital display module is for gathering the display of key information and device menu content, the central core of the main whole apparatus system of MCU module, it calculates analog signal sampling, control into signal outputing, process push button signalling and display interface, the software program controlling to be correlated with in MUC module is prior art.The sampling of described analog signal calculates the voltage and current signal arrived by collection of simulant signal module acquires, by reasonably sampling and calculating, obtain real-time electric current and voltage value, simultaneously according to corresponding electricity operational formula, obtain 3U0,3I0, P, Q, Kwh, Kvh value.Remote measurement amount involved in communication comprises Ua, Ub, Uc, Ia, Ib, Ic, 3U0,3I0, P, Q, Kwh, Kvh, and the communication that apparatus system can realize altogether 56 tunnel remote measurement amounts is uploaded.Described on-off model processing module comprises intake collecting unit and outputs control unit.Described on-off model processing module remote signalling amount collection can realize 64 tunnels and gather.Described communication module comprises RS485 interface and Ethernet interface, and RS485 interface is used for portable machine debugging and uses, and Ethernet interface is used for uploading with the data retransmission of main website or substation, information, receives the guidance command that main website or substation are assigned.Described key-press digital display module comprises LED drive circuit, LED display and push button signalling collecting unit.The configurable 20 tunnel remote controls of this device.This device also comprises configuration data collecting unit.Debounce module is provided with between described control module and on-off model processing module.
A kind of distribution network automated monitor terminal device, the multi-functional network-type measuring and controlling of a kind of distributed multi-CPU.It absorbs the design philosophy of the distributed system architecture of modern popular, a kind of microcomputer type distribution monitoring acquisition terminal of new generation integrating the functions such as remote measurement, remote signalling, remote control, protection and communication of the DSP Digital Signal Processing adopting the present age advanced and the development of high-speed industrial network technology.This device comprises collection of simulant signal module, on-off model processing module, communication module, digital display module and control module; The voltage and current signal of described signal acquisition module collection is input to control module, on-off model processing module gathers intake and coordinates with control module carries out outputing control, described communication module is used for communicating with between host computer, digital display module is for showing information displaying, and control module control relay carries out switch cubicle and divides and operate and ground connection electric operating.Be introduced below by a kind of DPX-5100 power distribution automation of the utility model embodiment monitor terminal device.
1, the basic function of DPX-5100 power distribution automation monitor terminal device
A () remote measurement amount gathers: Ua, Ub, Uc, Ia, Ib, Ic, 3U0,3I0, P, Q, Kwh, Kvh etc.Configurable at most 56 tunnel remote measurements; B () remote signalling amount gathers: protection event signal, protection act signal, each signal of switch cubicle, other signal on-the-spot.Configurable at most 64 tunnel remote signalling; (c) remote control amount: switch cubicle divides/closing operation, ground connection electric operating.Configurable at most 20 tunnel remote controls; (d) distant pulse: the reading of pulse meter or intelligent meter data.The configurable at most 4 distant arteries and veins in tunnel; (e) distant place parameter: distant place maintenance function.Time (f) pair.(g) data mart modeling, process, teletransmission etc.
2, the performance index of DPX-5100 power distribution automation monitor terminal device
(a) AC sampling: voltage input nominal value: 100V 50Hz; Electric current input nominal value: 1A/5A 50Hz; Electric current and voltage sampling precision: 0.5 grade; Active reactive sampling precision: 1.0 grades; The power consumption in loop is less than 0.25VA; Support 48 tunnel remote measurements
(b) remote signalling: remote signalling resolution is less than 10 milliseconds; The stabilization time can arrange 0-10000 millisecond by software; Support 64 tunnel remote signalling
(c) remote control amount: the way of output: relay normally open contact; Contact rating: DC110V 5A DC220V5A; Configure 10 tunnel remote controls
C () communication: 1 Phototube Coupling RS485 mouth, for the debugging of portable machine locality; 1 Ethernet interface, can realize with the data retransmission of main website or substation, information on give, accept and perform to advocate war or guidance command that substation is assigned; There is abundant communication protocol, as IEC600807-5-104 stipulations, IEC600807-5-101 stipulations, DNP3.0 stipulations
3, the principle of device introduction of DPX-5100 power distribution automation monitor terminal device
Whole hardware system is made up of collection of simulant signal module, on-off model processing module, communication module, key digital display module, MCU module.The electric quantity signal that collects through the calculating of computation chip, reads for MCU module by collection of simulant signal module; On-off model processing module feeds back in MCU module by the intake collected, and simultaneously by the remote control command of MCU module, realizes by outputing part; Communication module is used for communicating between device with host computer; Key-press digital display module is for gathering the display of key information and device menu content, the central core of the main whole apparatus system of MCU module, it calculates analog signal sampling, controlling, processing push button signalling and display interface outputing into signal.MCU module comprises the warning of EEPROM and CT overcurrent and exports two parts.EEPROM mainly stores some configuration informations in MCU module; CT overcurrent is reported to the police and is exported, and is the I/O pin utilizing MCU module, when the current value of sampling is higher than a critical point, and I/O pin output state 1.Fig. 1 is the hardware designs frame diagram of the utility model specifically execution mode.
(1) collection of simulant signal module: described collection of simulant signal module comprises voltage, current transformer, signal conditioning circuit and computation chip, the voltage and current signal collected is delivered in computation chip through conditioning electric current by instrument transformer, voltage and current signal calculates in computation chip, and the information of calculating comprises the information such as voltage, electric current, power, electricity.The MCU module of apparatus system reads as long as will be worth accordingly according to the register list of ATT7022B.Fig. 2 is collection of simulant signal and modulate circuit.
(2) on-off model processing module comprises intake collecting unit and outputs control unit, and described on-off model processing module remote signalling amount collection can realize 64 tunnels and gather.Fig. 3 is intake Acquisition Circuit; Fig. 4 is for outputing control circuit.
(3) communication module comprises RS485 interface and Ethernet interface, and RS485 interface is used for portable machine debugging and uses, and Ethernet interface is used for uploading with the data retransmission of main website or substation, information, receives the guidance command that main website or substation are assigned.Fig. 5 is 485 communication interface circuits; Fig. 6 is ethernet communication interface circuit.The communications protocol of RS485 interface uses MODBUS_RTU agreement.The communications protocol of Ethernet interface uses MODBUS_TCP agreement.
(4) described key-press digital display module comprises LED drive circuit, LED display and push button signalling collecting unit.Code pipe display section mainly utilizes ZLG 7289 to drive three rows, 4 LED to carry out information displaying.4, the communication process of apparatus system as shown in Figure 7, is mainly divided into electric quantity signal reading, Communication Control, key information collection, digital-scroll technique to control, open into signals collecting, output these parts of signal controlling.These modules have MCU module United Dispatching to regulate.The value of electric quantity signal mainly reads in the RAM of system by electric quantity signal reading section from computation chip, carries out showing and protect judgement for system.The data interaction of Communication Control mainly system and superior platforms, by communication by some information about power (telemetered signal), open and be uploaded to superior platforms into information (remote signalling information), the guidance command of superior platforms is also handed down to system and device by communication simultaneously.Key information collection is exactly mainly the key information of harvester.Digital-scroll technique control is exactly mainly the display of Control-Menu and relevant information.Open to be opened outside exactly into signals collecting and carry out debounce collection into information, the information of collection puts into RAM, for superior platforms collection and output signal controlling.Output signal controlling mainly to carry out outputing control according to the guidance command of superior platforms and the state opened into signal.
This apparatus design debounce module, carries out debounce processing, module 20MS effective time to the intake collection of system and push button signalling collection, utilizes MCU system timer to count, each computing cycle 1.25MS, counts 16 times, carry out the debounce of signal.After counting 16 times, the signal now gathered also remains unchanged, and represent that this signal is effective, otherwise representation signal is invalid.Specifically as shown in Figure 8.
Professional can also recognize further, in conjunction with the execution step that embodiment disclosed herein describes, can realize with electronic hardware, computer software or the combination of the two, innovative point of the present utility model is in the structure of system simultaneously, and the program of control aspect all just has prior art.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present utility model.
The utility model is not limited to above-mentioned specific embodiment; do not departing under the utility model spirit and real situation thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the utility model; these are tackled amendment that the utility model carries out mutually or equivalently to replace, and it all should be encompassed in the middle of the scope of claim of the present utility model protection.
Claims (7)
1. a distribution network automated monitor terminal device, is characterized in that: this device comprises MCU module, and the collection of simulant signal module, on-off model processing module, communication module and the key-press digital display module that are connected respectively with MCU module; Described collection of simulant signal module comprises instrument transformer, amplifier modulate circuit and computation chip; Described instrument transformer collects voltage and current signal and converts-5V ~+5V voltage signal to through amplifier modulate circuit, and carry out sampling for computation chip and calculate, MCU module reads the value of register in computation chip; Described on-off model processing module comprises intake collecting unit and outputs control unit, and the intake collected feeds back in MCU module by described intake collecting unit, outputs control unit and carries out the closed of control switch according to the remote control command of MCU module.
2. distribution network automated monitor terminal device according to claim 1, is characterized in that: the communication that this device can realize 56 tunnel remote measurement amounts is uploaded, and remote measurement amount comprises Ua, Ub, Uc, Ia, Ib, Ic, 3U0,3I0, P, Q, Kwh, Kvh.
3. distribution network automated monitor terminal device according to claim 1, it is characterized in that: described communication module comprises RS485 interface and Ethernet interface, RS485 interface is used for portable machine debugging and uses, Ethernet interface is used for uploading with the data retransmission of main website or substation, information, receives the guidance command that main website or substation are assigned.
4. distribution network automated monitor terminal device according to claim 1, is characterized in that: described key-press digital display module comprises LED drive circuit, LED display and push button signalling collecting unit.
5. distribution network automated monitor terminal device according to claim 1, is characterized in that: the configurable 20 tunnel remote controls of this device export.
6. distribution network automated monitor terminal device according to claim 1, is characterized in that: this device also comprises configuration data collecting unit.
7. distribution network automated monitor terminal device according to claim 1, is characterized in that: be provided with debounce module between described MCU module and on-off model processing module.
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| CN201420444676.5U CN204442007U (en) | 2014-08-07 | 2014-08-07 | A kind of distribution network automated monitor terminal device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107804A (en) * | 2018-02-14 | 2018-06-01 | 北京清畅电力技术股份有限公司 | A kind of looped network cabinet breaker Intelligent control device and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108107804A (en) * | 2018-02-14 | 2018-06-01 | 北京清畅电力技术股份有限公司 | A kind of looped network cabinet breaker Intelligent control device and control method |
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