CN202059215U - Self-powered intelligent power network distribution device based on optical fiber communication - Google Patents
Self-powered intelligent power network distribution device based on optical fiber communication Download PDFInfo
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- CN202059215U CN202059215U CN2011201458150U CN201120145815U CN202059215U CN 202059215 U CN202059215 U CN 202059215U CN 2011201458150 U CN2011201458150 U CN 2011201458150U CN 201120145815 U CN201120145815 U CN 201120145815U CN 202059215 U CN202059215 U CN 202059215U
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Abstract
The utility model relates to a self-powered intelligent power network distribution device based on optical fiber communication, which comprises a self-powered intelligent device and an optical fiber communication interface device, wherein a self-powered protection device comprises a high voltage side electric signal input module, a high voltage side line switch capacity input module, a switch capacity output module, a main controller, a human-computer interface display module, a presskey control circuit module, a fault detection and record module, an upper computer communication interface module, and a print output module, an optical communication interface protection device is connected with the main controller through a serial communication module, and is connected with another similar self-powered protection device through an optical fiber, and can be connected with other universal external device through the optical fiber. The self-powered intelligent power network distribution device guarantees the relay protection device to work stably and simultaneously transmits related electric parameter through the optical fiber, so that the electric power communication network has expansion property, universality and stability, and electricity transmission and distribution is more intelligent.
Description
Technical field
The utility model relates to a kind of power equipment, particularly relates to the intelligent distribution device of the employed self-powered formula in a kind of 10KV-35KV power transmission and distribution field.The intelligent distribution device of this self-powered formula combines the self-powered protective device with the optical fiber communication interface protector, utilize optical fiber as transmission medium, adopts 1EC 61850 agreements to communicate, and makes powerline network more stable, and is intelligent more.
Background technology
In 10KV-35KV power transmission and distribution field, conventional protective relaying device is not with communication interface or is adopted cable as transmission medium, and communication quality is not high, and communication distance has limitation, communication error code height.The communication protocol difference of while different protective relaying device producer employing, compatible each other bad.Cause powerline network communication unstable, be inconvenient to expand.
Simultaneously, current the principle of " safe and reliable, technology is suitable for; reduce and safeguard; energy-conserving and environment-protective " require is satisfied in upgrade of rural power grids, automation, intellectuality and economy, the ease for use of equipment for power transmission and distribution all proposed higher requirement, adopt the utility model can satisfy this requirement.
Summary of the invention
The purpose of this utility model provides a kind of self-powered formula intelligent protection device based on optical fiber communication, has not only realized the defencive function of conventional protective relaying device.Simultaneously can utilize optical fiber as transmission medium, the electric information that protective device is detected transmits accurately.In optical fiber communication, adopt standard IEC 61850 communication protocols, protective device can be used simultaneously with the protective device of other producer, for powerline network provides extensibility, versatility and stability.
For solving above-mentioned technical problem, the utility model provides a kind of self-powered formula intelligence distribution device based on optical fiber communication, it is characterized in that, comprising: self-powered protective device and optical fiber communication interface arrangement;
Described self-powered protective device comprises high-pressure side electric signal input module, high-pressure side line switching amount input module, switching value output module, master controller, man-machine interface display module, key control circuit module, fault detect and logging modle, host computer communication interface modules, printout module.
In technique scheme, described optical fiber communication interface protector is connected with master controller by serial communication module, by optical fiber and another similar self-powered protective device connection, also can be connected with other universal external equipment by optical fiber simultaneously.
In technique scheme, further comprise electricity-fetching module, described electricity-fetching module obtains energy by high-tension current inductor from high-tension line, and by filtering, processing such as rectification are converted into power supply and power to device.
The self-powered formula intelligent protection device of optical fiber communication provided by the utility model, with switch power technology, Computer Control Technology, Fibre Optical Communication Technology; network technology, the Protection Technology combination is a principle with " safe and reliable; that technology is suitable for, as to reduce and safeguard, energy-conserving and environment-protective ".Has good and economic, practicality, stability and extensibility.The utility model utilizes optical fiber as transmission medium when possessing the function of conventional protective relaying device, adopts IEC61850 communication protocol with other power equipment reliable interconnect.Than farther as the transmission medium communication distance with cable, the communication error rate is low, and stability is better.Adopt IEC61850 more to connect, do not exist because of communication protocol do not conform to can not be interconnected problem, communication network can be expanded.When realizing conventional protective relaying device function with low-cost pattern, adopt optical fiber communication to realize power distribution automation, intellectuality also helps environmental protection simultaneously.
The utility model adopts switch power technology, and directly obtaining the energy by a high-tension current inductor from the high-tension line mutual inductance is the protective device power supply, gathers the high-voltage electrical apparatus parameter simultaneously and adopts filtering; amplifier, technology such as A/D sampling are monitored the relevant parameter of current electrical network; as three-phase current, zero-sequence current, temperature of oil in transformer etc.; and the protection of realization syllogic, tranformer protection, separating brake; reclosing, light gas, heavy gas; high temperature alarm, defencive functions such as superhigh temperature warning.
The utility model adopts optical fiber communication on communication function, adopt IEC 61850 standard communication protocols, has improved communication distance greatly, has improved the stability of communication.Simultaneously can compatible other external equipments in communication network, strengthened the extensibility of communication.
From economic angle, the utility model has saved as direct current cabinet, storage battery, and equipment such as PT cabinet have been saved cost greatly.
On stability and life cycle, the utility model adopts from the principle of high-tension current inductor power taking to the microcomputer protecting device power supply, has directly solved accessory power supply (as storage battery; UPS) life cycle is short; problem of unstable is strengthened controller switching equipment stability greatly, and life cycle increases.Adopt optical fiber as communication medium on the communication line, improved the stability of communication greatly.
On practicality, the utility model does not have specification requirement to the high-tension current inductor that is adopted, common high-tension current inductor all can, increased practicality and generality greatly.Adopt IEC61850 communication protocol simultaneously, making can supporting other external equipment networking of while.
From the environmental protection aspect, with respect to controller switching equipment in the past, the utility model has omitted the storage battery that pollution is arranged, and has significantly reduced storage battery, and UPS etc. are in use to the pollution of environment.
Description of drawings
Fig. 1 is the structural representation based on the self-powered formula intelligence distribution device of optical fiber communication.
Mark among the figure: 1-high-pressure side electric signal input module; 2-high side switch amount input module; 3-switching value output module; The 4-master controller; 5-man-machine interface display module; 6-key control circuit module; 7-fault detect and logging modle; 8-host computer communication interface modules; The 9-serial communication module; The outside printing device of 10-; 11-optical fiber communication interface arrangement; Other universal external equipment of 12-; 13-self-powered formula intelligent protection device.
Embodiment
Understand and enforcement the utility model for the ease of those of ordinary skills, the utility model is described in further detail below in conjunction with the drawings and the specific embodiments.
As shown in Figure 1, the utility model provides a kind of microcomputer protecting device based on the high-tension current inductor power taking, relates to the used protective device in 10KV-35KV power transmission and distribution field, and it mainly comprises self-powered protective device and optical fiber communication interface arrangement.
The utility model is mainly by master controller, signals collecting, and signal processing, control is carried out and is waited part to form.Master controller is gathered real-time data signal, carries out signal filtering by internal circuit, and processing and amplifying utilizes the correlation computer algorithm to carry out signal processing by master controller, and the electric signal that collects is shown by liquid crystal display screen.Detect current power network line, the signal of transformer.To the real time data analysis, judge and storage simultaneously.Discovery has fault-signal, and master controller sends sub-gate signal and makes breaker open operation, and protection power equipment, and record trouble reason are convenient to power department and are searched reason, make distribution automation, intellectuality.
Wherein, the self-powered protective device is made of high-pressure side electric signal input module 1, high-pressure side line switching amount input module 2, switching value output module 3, master controller 4, man-machine interface display module 5, key control circuit module 6, fault detect and logging modle 7, host computer communication interface modules 8, printout module 10.
High-pressure side electric signal input module 1 is used for electric simulation signals such as input current, voltage, temperature, carries out being input to master controller 4 after the analog-to-digital conversion through electric sample circuit and handles.High-pressure side line switching amount input module 2 is used for switching value alarm signals such as input transformer protection, light gas, heavy gas, high temperature, superhigh temperature.Switching value output module 3 is used for switching value control signals such as output alarm signal, sub-gate signal.Master controller 4 adopts 16 low-power consumption DSP TM320VC550 of TI, and the electric signal of input is changed by A/D, through after the signal processing of master controller 4, shows measurement result in real time in the LCDs of man-machine interface display module 5.Key control circuit module 6 is used to control input keyboard, and the user is provided with the related electric parameter of collection by input keyboard.Fault detect and logging modle 7 are used for detection failure and record trouble reason and time of failure.
Master controller 4 is gathered from the signal of high-pressure side electric signal input module 1, light switching input module 2 inputs of high-pressure side circuit, carries out internal conversion and signal processing, and the related electric parameter is shown in real time by man-machine interface display module 5.The user can set relevant parameter by the input keyboard that links to each other with key control circuit module 6.Simultaneously relevant information is detected by fault detect and logging modle 7 and judge and record.And can utilize host computer communication interface modules 8 directly to be connected, will detect to such an extent that electric information directly is uploaded to Control Room with the upper strata watch-dog.Also can relevant information be printed and preserve by the printing device that links to each other with printout module 10.
Optical fiber communication interface protector 11; main coding and decoding and the photoelectric converting function realized; be connected with master controller 4 by SCC serial communication module 9, by optical fiber and another similar self-powered protective device 13 connections, to realize the data interaction between a plurality of self-powered protective devices.Can also be connected with other universal external equipment 12 by optical fiber equally.Optical fiber communication interface protector 11 is handled by the signal of Optical Fiber Transmission other common apparatus 12 in the network through decoding and coding after; be transferred to master controller 4 by serial communication module 9, simultaneously the command decode that master controller 4 is sent handle the back by Optical Fiber Transmission to other universal external equipment 12.
Optical fiber communication interface protector 11 utilizes optical fiber as transmission medium, adopts the reliable interconnect of IEC61850 communication protocol realization with other power equipments.Cable is farther as the communication mode transmission range of transmission medium than using, and the communication error rate is lower, and stability is better.Adopt the optical fiber of IEC61850 to connect, do not exist because of communication protocol do not conform to can not be interconnected problem, make communication network possess extremely strong extensibility.
Microcomputer protecting device based on the high-tension current inductor power taking also comprises electricity-fetching module; electricity-fetching module adopts the self-powered technology; promptly utilize mutual inductance principle and conservation of energy principle; obtain energy by a high-tension current inductor from high-tension line; by filtering, processing such as rectification are converted into power supply and power to device.
The electric signal collection of high-pressure side electric signal input module 1, gather current signal by a high-tension current inductor, gather voltage signal by voltage transformer, transform through internal circuit, carry out filtering again, processing and amplifying enters master controller, and master controller carries out signal processing and calculates, and shows by LCD MODULE.
High side switch amount input module and switching value output module are mainly the monitoring of electric signal, and the inner photoelectrical coupler that adopts, devices such as relay are that current electrical network is reserved some and opened into amount, in order to monitor as the too high warning of temperature of oil in transformer, light gas, high temperature, alarm signals such as superhigh temperature warning.Reserve the amount of leaving simultaneously, when finding alarm signal is arranged, in separating brake, the amount of leaving node can send alarm signal.
The preservation of fault detect and 7 pairs of failure loggings of logging modle with check: mainly adopt the Flash memory technology, the CPU Low-power Technology.When breaking down, external power source disconnects, but the inner high-performance lithium battery of use device this moment is checked failure logging as power supply by LCDs, and failure logging can be stored to the inner Flash of CPU.
Defencive function of the present utility model: have specified time, inverse time lag curve protection realization defencive function, have zero-sequenceprotection, the fast tripping protection function has under-voltage protection, overvoltage protection, the universal protection of power, distance protection, differential protection and carrier current protection etc.
Preferably, the self-powered intelligent apparatus detects the electric signal in the distribution line of high-pressure side, shows by man-machine interface, when the signal of detection is undesired, sends trip signal or alarm signal.The optical fiber communication interface equipment is realized photoelectric converting function; the light signal that protective device is sent is converted to the signal of telecommunication and is transferred to the circuit opposite end by digital communication equipment, sends to protective device after will becoming light signal from the electrical signal conversion that digital communication equipment receive simultaneously.Adopt IEC61850 communication protocol between the device, 64Kb/s or 204SKb/s rate coding, HDLC synchronous communication form are adopted in the communication between device.This protective device is used in combination the self-powered protective device with the optical fiber communication interface equipment, when guaranteeing the protective relaying device steady operation, the related electric parameter is passed through Optical Fiber Transmission.
Above embodiment only is a kind of execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Its concrete structure and size can be adjusted according to actual needs accordingly.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (3)
1. the self-powered formula intelligence distribution device based on optical fiber communication is characterized in that, comprising: self-powered protective device and optical fiber communication interface arrangement;
Described self-powered protective device comprises high-pressure side electric signal input module, high-pressure side line switching amount input module, switching value output module, master controller, man-machine interface display module, key control circuit module, fault detect and logging modle, host computer communication interface modules, printout module.
2. the self-powered formula intelligence distribution device based on optical fiber communication according to claim 1; it is characterized in that; described optical fiber communication interface protector; be connected with master controller by serial communication module; by optical fiber and another similar self-powered protective device connection, also can be connected with other universal external equipment simultaneously by optical fiber.
3. the self-powered formula intelligence distribution device based on optical fiber communication according to claim 1 and 2, further comprise electricity-fetching module, described electricity-fetching module obtains energy by high-tension current inductor from high-tension line, and by filtering, processing such as rectification are converted into power supply and power to device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201458150U CN202059215U (en) | 2011-05-10 | 2011-05-10 | Self-powered intelligent power network distribution device based on optical fiber communication |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201458150U CN202059215U (en) | 2011-05-10 | 2011-05-10 | Self-powered intelligent power network distribution device based on optical fiber communication |
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| CN202059215U true CN202059215U (en) | 2011-11-30 |
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| CN2011201458150U Expired - Fee Related CN202059215U (en) | 2011-05-10 | 2011-05-10 | Self-powered intelligent power network distribution device based on optical fiber communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441574A (en) * | 2013-08-07 | 2013-12-11 | 张家港瑞自电气有限公司 | Passive intelligent network distribution device based on MODBUS protocol |
-
2011
- 2011-05-10 CN CN2011201458150U patent/CN202059215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441574A (en) * | 2013-08-07 | 2013-12-11 | 张家港瑞自电气有限公司 | Passive intelligent network distribution device based on MODBUS protocol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhan E-Relay Electric Co., Ltd. Assignor: Yu Baocheng|Wang Chunmei Contract record no.: 2012420000105 Denomination of utility model: Self-powered intelligent power network distribution device based on optical fiber communication Granted publication date: 20111130 License type: Common License Record date: 20120815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20150510 |
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| EXPY | Termination of patent right or utility model |