CN2629346Y - Distribution net step voltage carrier communication controlling apparatus - Google Patents
Distribution net step voltage carrier communication controlling apparatus Download PDFInfo
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- CN2629346Y CN2629346Y CNU032177771U CN03217777U CN2629346Y CN 2629346 Y CN2629346 Y CN 2629346Y CN U032177771 U CNU032177771 U CN U032177771U CN 03217777 U CN03217777 U CN 03217777U CN 2629346 Y CN2629346 Y CN 2629346Y
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Abstract
The utility model provides a cross voltage carrier-current communication control device in a distribution network, comprising a low voltage carrier-current transmission communication circuit, a high voltage carrier-current transmission communication circuit, a central processing unit and a client terminating circuit. The communication exchanging data of the low voltage carrier-current transmission communication circuit, the high voltage carrier-current transmission communication circuit and the client terminal circuit and the central processing unit are connected with each other through a transmission line carrier. Compared with the prior art, the cross voltage carrier-current communication control device in a distribution network of the utility model has the advantages of a small investment, a reliable performance and green environmental protection. With the extensive use of the distribution automation, the utility model can save hundred billions of funds for State Power Corporation of China, thereby having a popularizing use value.
Description
1, technical field
The utility model relates to a kind of power distribution network management communication administrative skill, and specifically a kind of power distribution network is striden voltage carrier communication control device.
2, technical background
Along with being gradually improved of power transmission and transformation network automatically, distribution automation will become the emphasis of power department work, relevant producer and R﹠D institution are also all in the R﹠D work to power in distribution automation, but relevant remote control equipment emerge in multitude, in order to reach the target of timing monitoring, will react the real-time running state of circuit at any time to central controlling organization, adopt which type of communication channel, just become the key issue place of distribution automation, in order to realize that channel connects, adopt wireless mode at the beginning, develop into leased line and GSM afterwards, set up special line, erecting optical cables extremely, input like this is sizable, if bring watch-dog as a slight switchgear house, and may be unrealistic, and distribution network belongs to wired real-time connection network, no matter be how which kind of electric pressure all is, that is to say that service channel is ready-made, we just can fill part and utilize this condition so, obtain cheapness communication channel easily.Certainly, the price of a carrier equipment also is appreciable, need expensive trap and carrier terminal equipment, and distribution network does not resemble relatively-stationary node the electric power transmission network, the randomness of node is very strong, this brings sizable difficulty with regard to the transmission of giving carrier signal, yet, the low-voltage circuit carrier meter reading system of current trend but has distinctive feature, though present carrier meter reading is subjected to the dirty and messy influence of circuit very big, but the high voltage distribution network Luoque is simple more than secondary network, the signal transmission technology during low pressure is checked meter acts in the high-voltage distribution network, the number that just can well solve distribution passes a difficult problem, realizes distribution automation.
3, summary of the invention
The purpose of this utility model provides a kind of high-low pressure power line that utilizes and carries out carrier communication; monitor the operation conditions of whole distribution network by control program; implement functions such as circuit burglar alarm, fault alarm, earth leakage protective, user data collection and management, line loss monitoring, whole distribution network is carried out the power distribution network of intelligent management and stride voltage carrier communication control device.
4, description of drawings
Accompanying drawing 4 is striden voltage carrier communication control device allocation plan in power transmission network for power distribution network.
5, execution mode
The execution mode of power distribution network of the present utility model being striden voltage carrier communication control device with reference to Figure of description explains below doing.
Power distribution network of the present utility model is striden voltage carrier communication control device, be to reach with the central processing unit communication module by low pressure carrier wave coupling unit, high pressure carrier wave coupling unit, central processing unit, data acquisition unit, actuator, power supply module to constitute, the Communication Control data of central processing unit communication module are loaded on the high and low voltage electric distribution circuit and main control end, equipment end, client by high pressure carrier wave coupling unit and low pressure carrier wave transmitting-receiving subassembly, and equipment end is carried out the exchanges data communication mutually.
High pressure carrier wave coupling unit A passes passage for the high pressure carrier communication provides number, provide reliable and effective isolation for high-low pressure on the other hand, adopt capacitor and inductor and photoelectric coupling technology, its circuit is by protective tube BX1-BX4, electric capacitor Ca-Cc, Co, high-frequency coupling transformer B1, capacitor C 1-C2, inductance L 1, the data carrier transceiver module, bi-directional data photoelectricity coupling module, power current instrument transformer LH, power supply module constitutes, capacitor C a, Cb, the Y wiring branching-point that Cc constitutes is respectively by protective tube BX1, BX2, BX3 meets high-tension distributing line A, B, the C phase line, mid point is through the elementary winding of high-frequency coupling transformer B1, protective tube BX4, electric capacitor C0 connects with the controller switching equipment earth electrode, the secondary winding of coupling transformer B1 is via C1, C2, the high pass filter that L1 constitutes is delivered to the data carrier transceiver module, carries out delivering to central processing unit after the safe and reliable voltage isolation through bi-directional data photoelectricity coupling module again.Power current instrument transformer LH, power supply module D provide working power for each parts of high-pressure side.
Low pressure carrier wave coupling unit B is by protective tube BX5-BX8, capacitor C a '-Cc ', capacitor C 3-C5, inductance L 1, transformer B2-B3, the data carrier transceiver module, power supply module constitutes, capacitor C a ', Cb ', the Y wiring branching-point that Cc ' constitutes is respectively by protective tube BX5, BX6, BX7 meets low-voltage distribution wire A, B, the C phase line is joined, mid point is by protective tube BX8 and by capacitor C 4, the high pass filter that C5 inductance L 5 constitutes connects behind the data carrier transceiver module to central processing unit, the elementary winding one termination transformer neutral point zero line of coupling transformer B3, another termination controller switching equipment earth electrode, the two ends of capacitor C 3 and the elementary winding of coupling transformer B3 also connect, constitute the carrier signal wave arrestment, zero-sequence current extracts, the secondary winding of coupling transformer B3 connects data collector module, data acquisition module by data/address bus to central processing unit.Transformer B2, power supply module D provide working power for each parts
Customer end B is made up of protective tube BX5, capacitor C 4, acquisition terminal, protective tube BX5 one termination phase line, and the other end connects conventional acquisition terminal after by capacitor C 4 step-downs, but the other end of signal outlet is not a connecting to neutral line routinely, but ground connection or protection ground.
Power supply module D is by inductance winding L 11, L12, rectifier Q1, filter capacitor C11, C12, three-terminal voltage-stabilizing ic chip 1, resistance R 11, diode D and battery E1 form, inductance winding L 11, L12 is connected on the alternating current input of rectifier Q1 respectively, the DC output end minus earth of rectifier Q1, positive pole connects 1 pin of three-terminal voltage-stabilizing integrated package, 2 pin ground connection of three-terminal voltage-stabilizing integrated package, 3 pin connect anodal voltage stabilizing output, filter capacitor C11C12 is connected on 1 pin of three-terminal voltage-stabilizing integrated package respectively, between 2 pin and the ground wire, resistance R 11 is connected in series between the power positive cathode with battery E1, and diode D and resistance r11 also connect.
Specify: under the reliable and effective prerequisite of conventional carrier system, can not adopt the ground connection communication mode, divide, stride voltage carrier communication control device and can be divided into main control end, device end and client by functions of the equipments:
Device end: form by high and low pressure coupling unit, data acquisition unit, actuator, main central processor and power-supply device, also video probe can be set as required, its effect is real-time collection, arrangement and preservation to each demand data, and the running status of monitoring corresponding device, simultaneously abnormal conditions are carried out monitoring alarm.And have a control ability to controllable device, for realizing facing control (not having low pressure) and can cancel the low pressure coupling unit to the high voltage distribution network control appliance.
Main control end: equipment constitutes identical with device end basically, because the main control device terminal is to be installed on the controller switching equipment scene, for saving device resource, on the basis of device end, increased and the communication of main control computer connection connection equipment and relevant control program, taken into account the repertoire of device end simultaneously, can directly use carrier signal with the communication of main control computer, also can adopt wireless module to set up in case of necessity and connect by closely special line connection.Can be placed on the position of any one convenient work in the power distribution network in principle.
Client terminal: adopt conventional measurement instrument acquisition module; only be different from and utilize ground as carrier; the utility model why adopt as carrier; be because in traditional low pressure carrier wave scheme; all be to use phase line and zero line to be incorporated into the line data transmission; as everyone knows; in normal low voltage electric network; phase line and zero line; be connected to different power consumption equipments between phase line and the phase line; and each power consumption equipment all will be the bypass point of carrier signal; when this order of magnitude acquires a certain degree; to make carrier signal society decay to the degree that receiving terminal can't receive; cause Communications failure; also have these power consumption equipments all may produce some high order harmonic component compositions; also all will form serious disturbance to carrier signal; even flood the data carrier composition; and in the secondary network except that zero line uses direct ground connection; other three-phase all is to connect with the earth by the distribution transforming coil; and this coil is a big impedance to high-frequency signal; in addition; in net in the city mostly; also has a ground protection line; therefore, we just can fill part and utilize this characteristic, use phase line and ground in the low voltage network; phase line passes carrier channel with protection ground as number; thereby the bypass usefulness and the interference of power consumption equipment have been avoided; effectively improve number and pass usefulness, same, the customer equipment end also adopts this mode.For preventing that carrier signal from rapping around to zero line by ground wire, transformer neutral point; form shunting circuit through power consumption equipment; between the neutral point of transformer and earth electrode, add high-frenquency current blocking device; make it under the prerequisite that does not influence normal ground connection; carrier signal is blocked, thereby avoided the bypass usefulness and the interference of power consumption equipment, utilize this coupling coil simultaneously; detect the amplitude and the phase place of the leakage current of low voltage electric network, realize intelligent earth leakage protective ability.Though and be to adopt isolated neutral system in high voltage distribution network, but for the quadergy in the compensates electric network, adopt the electric capacitor compensation mostly, if carrier signal directly is loaded on three power transmission lines, can't the composition data passage because these building-out capacitors play to the bypass effect of life the high-frequency data carrier signal, also must use the earth as signal vehicle for this reason.
Workflow: the control signal of being sent by computer reaches main control end through low pressure carrier wave channel (or designated lane), whether the main control end inspection is self control command, be to handle on the spot, otherwise undertaken being loaded in the high voltage distribution network by the high pressure coupling unit after the exchanges data by main control end, then by the reception of equipment end high pressure coupling unit and by the bi-directional data photoelectric coupling assembly, provide safely and effectively and deliver to main central processor analysis after the voltage isolation, see whether be the control command of self, it is then further analyzing and processing, carry out corresponding operation according to different control commands, and operating result is transmitted back to the control computer by reverse several biography processes, be both, client terminal under equipment end also will regularly be maked an inspection tour, these are few of different with conventional low-voltage collecting meter reading!
Computer-controlled program: 1, real-time polling module: the running status of voltage, current variation and the relevant device of each control point of monitoring in real time, finishing in good time metering copies and accepts, abnormal conditions are sent alarm signal, owing to used high-tension distributing line as carrier, by the contact of shaking hands, by with the contact of shaking hands of each terminal equipment, running status (line materials anti-thefting monitoring) that can real time monitoring supply line, routine inspection mode is divided into self-timing and patrols and examines and emphasis manual inspection mode;
2, real-time control module: require to send control command targetedly according to operation, and respond corresponding implementation status, realize real-time control, thereby realize controlling automation to distribution;
3, centralized automatic meter-reading module: this with most of existing collection copy do not have great different
4, video processing module: selectable display monitoring end image scene
5, analysis-by-synthesis module: the data that polling module is provided cooperate relevant working procedure to the row analysis-by-synthesis, finish metering computing (automation of checking meter), voltage monitoring, for electric equilibrium, line loss analyzing (anti-electricity-theft measuring and calculating) etc. in real time.
Performance analysis: because currently used distribution automation data communications equipment is technology such as employing is wireless, special line, GMS basically, equipment investment is all in units up to ten thousand, and adopt above-mentioned distribution carrier schemes, cost is not higher than 2,000, and dependable performance, environmental protection, predict according to the relevant expert, along with the big face journey of distribution automation is used, this scheme can be saved number in hundred billion fund for National Electricity Co., thereby has good value for applications.
Claims (5)
1, power distribution network is striden voltage carrier communication control device, its structure is to be reached with the central processing unit communication module by low pressure carrier wave coupling unit, high pressure carrier wave coupling unit, data acquisition unit, actuator, power supply module D to constitute, the Communication Control data that it is characterized in that the central processing unit communication module are loaded on the high and low voltage electric distribution circuit and main control end, equipment end, client by high pressure carrier wave coupling unit and low pressure carrier wave transmitting-receiving subassembly, and equipment end is carried out the exchanges data communication mutually.
2, power distribution network according to claim 1 is striden voltage carrier communication control device, it is characterized in that high pressure carrier wave coupling unit A is by protective tube BX1-BX4, electric capacitor Ca-Cc, Co, high-frequency coupling transformer B1, capacitor C 1-C2, inductance L 1, the data carrier transceiver module, bi-directional data photoelectricity coupling module, power current instrument transformer LH, power supply module constitutes, capacitor C a, Cb, the Y wiring branching-point that Cc constitutes is respectively by protective tube BX1, BX2, BX3 meets high-tension distributing line A, B, the C phase line, mid point is through the elementary winding of high-frequency coupling transformer B 1, protective tube BX4, electric capacitor C0 connects in the controller switching equipment earth electrode, the secondary winding of coupling transformer B1 is via C1, C2, the high pass filter that L1 constitutes is delivered to the data carrier transceiver module, carry out delivering to central processing unit after the safe and reliable voltage isolation power current instrument transformer LH again through bi-directional data photoelectricity coupling module, power supply module D provides working power for each parts of high-pressure side.
3, power distribution network according to claim 1 is striden voltage carrier communication control device, it is characterized in that low pressure carrier wave coupling unit B is by protective tube D5-D8, capacitor C a '-Cc ', capacitor C 3-C5, inductance L 1, transformer B2-B3, the data carrier transceiver module, power supply module constitutes, capacitor C a ', Cb ', the Y wiring branching-point that Cc ' constitutes is respectively by protective tube BX5, BX6, BX7 meets low-voltage distribution wire A, B, the C phase line is joined, mid point is by protective tube D8 and by capacitor C 4, the high pass filter that C5 inductance L 5 constitutes connects behind the data carrier transceiver module to central processing unit, the elementary winding one termination transformer neutral point zero line of coupling transformer B3, another termination controller switching equipment earth electrode, the two ends of capacitor C 3 and the elementary winding of coupling transformer B3 also connect, constitute the carrier signal wave arrestment, zero-sequence current extracts, the secondary winding of coupling transformer B3 connects data collector module, data acquisition module by data/address bus to central processing unit.Transformer B2, power supply module D provide working power for each parts
4, power distribution network according to claim 1 is striden voltage carrier communication control device; it is characterized in that customer end B is made up of protective tube BX5, capacitor C 4, acquisition terminal; protective tube BX5 one termination phase line; the other end connects conventional acquisition terminal after by capacitor C 4 step-downs, and output line connects the protection ground wire.
5, stride voltage carrier communication control device according to the described power distribution network of claim 2-4, it is characterized in that power supply module D is by inductance winding L 11, L12, rectifier Q1, filter capacitor C11, C12, three-terminal voltage-stabilizing ic chip 1, resistance R 11, diode D and battery E1 form, inductance winding L 11, L12 is connected on the alternating current input of rectifier Q1 respectively, the DC output end minus earth of rectifier Q1, positive pole connects 1 pin of three-terminal voltage-stabilizing integrated package, 2 pin ground connection of three-terminal voltage-stabilizing integrated package, 3 pin connect anodal voltage stabilizing output, filter capacitor C11, C12 is connected on 1 pin of three-terminal voltage-stabilizing integrated package respectively, between 2 pin and the ground wire, resistance R 11 is connected in series between the power positive cathode with battery E1, and diode D and resistance R 11 also connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032177771U CN2629346Y (en) | 2003-06-09 | 2003-06-09 | Distribution net step voltage carrier communication controlling apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032177771U CN2629346Y (en) | 2003-06-09 | 2003-06-09 | Distribution net step voltage carrier communication controlling apparatus |
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| CN2629346Y true CN2629346Y (en) | 2004-07-28 |
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| CNU032177771U Expired - Fee Related CN2629346Y (en) | 2003-06-09 | 2003-06-09 | Distribution net step voltage carrier communication controlling apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699707B (en) * | 2009-10-19 | 2013-06-05 | 中国电力科学研究院 | Distribution type method for protecting residual current of low voltage power supply system |
| CN103369905A (en) * | 2013-07-19 | 2013-10-23 | 杨海波 | Voltage capacitance carrier |
| CN104333400A (en) * | 2014-10-30 | 2015-02-04 | 国家电网公司 | System for testing impact of low-voltage power line carrier communication on electric leakage protector |
| WO2015176405A1 (en) * | 2014-05-21 | 2015-11-26 | 中兴通讯股份有限公司 | Smart home gateway |
| CN109802703A (en) * | 2019-03-18 | 2019-05-24 | 南京优宁电气技术有限公司 | Active across electric network power line carrier communication system and method |
-
2003
- 2003-06-09 CN CNU032177771U patent/CN2629346Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699707B (en) * | 2009-10-19 | 2013-06-05 | 中国电力科学研究院 | Distribution type method for protecting residual current of low voltage power supply system |
| CN103369905A (en) * | 2013-07-19 | 2013-10-23 | 杨海波 | Voltage capacitance carrier |
| WO2015176405A1 (en) * | 2014-05-21 | 2015-11-26 | 中兴通讯股份有限公司 | Smart home gateway |
| CN104333400A (en) * | 2014-10-30 | 2015-02-04 | 国家电网公司 | System for testing impact of low-voltage power line carrier communication on electric leakage protector |
| CN109802703A (en) * | 2019-03-18 | 2019-05-24 | 南京优宁电气技术有限公司 | Active across electric network power line carrier communication system and method |
| CN109802703B (en) * | 2019-03-18 | 2021-08-17 | 南京优宁电气技术有限公司 | Active cross-grid power line carrier communication system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |