CN205160091U - Little electric wire netting grid -connected interface integrated device - Google Patents
Little electric wire netting grid -connected interface integrated device Download PDFInfo
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- CN205160091U CN205160091U CN201520792777.6U CN201520792777U CN205160091U CN 205160091 U CN205160091 U CN 205160091U CN 201520792777 U CN201520792777 U CN 201520792777U CN 205160091 U CN205160091 U CN 205160091U
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- 238000004891 communication Methods 0.000 claims abstract description 29
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- 230000003993 interaction Effects 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
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Abstract
The utility model discloses a little electric wire netting grid -connected interface integrated device, including central processing unit plug -in components, human -computer interaction display module, open and go into to leave plug -in components, telemechanical plug -in components, GOOSE communication plug -in components, the voltage acquisition module pass through the input that CPU and DSP are connected respectively to low pass filter and ADC module, CPU's output carries out the communication with remote server respectively through GOOSE communication plug -in components, the input of CPU's output port connection control relay, DSP's input connect to open go into the output of module, the output of leaving the module is connected to DSP's output, the module of leaving adopt the output array, the input of the one end connection control relay of the output of output array, status indicator lamp's input is connected respectively to the other end. The utility model provides a little electric wire netting and site department equipment redundant not enough, promoted further developing of new forms of energy industry.
Description
Technical field
The utility model relates to the utility model design micro-grid connection technology, especially micro-grid connection interface integrated apparatus.
Background technology
Micro-capacitance sensor is a kind of new network structure, is the system unit that a group of micro battery, load, energy-storage system and control device are formed.Micro-capacitance sensor be one can teaching display stand control, the autonomous system of protect and manage, both can be incorporated into the power networks with external electrical network, also can isolated operation.Micro-capacitance sensor is a concept of relatively traditional bulk power grid, refers to the network that multiple distributed power source and related load thereof form according to certain topological structure, and is associated to normal grid by static switch.Because micro-capacitance sensor fully can promote the extensive access of distributed power source and regenerative resource, realizing the highly reliable supply to load various energy resources form, so be considered to a kind of effective means realizing active power distribution network, is that traditional electrical network is to intelligent grid transition.
The generator unit of micro-capacitance sensor mostly is the regenerative resources such as wind energy, solar energy, water energy, natural gas, geothermal energy, oceanic energy, biomass energy, and its generating has intermittence and unsteadiness.To affect to grid stability after a large amount of micro-capacitance sensor access electrical networks, therefore the voltage to micro-grid connection point, electric current, meritorious, idle, power factor (PF) etc. is needed to monitor, and sending local power scheduling department by related electric amount data, power scheduling department is run by telecontrol system straighforward operation mains-power circuit.But need numerous secondary devices (as protective relaying device, measure and control device, Communications Management Units, telemechanical apparatus, equipment for monitoring power quality) in existing micro-grid connection circuit; but owing to there is no special grid-connected interface concentration process; secondary device is caused to need separate cabling separately; numerous secondary devices carries out separate cabling; just cause difficulty is installed; and the problem such as loop needed for secondary device is loaded down with trivial details, complicated, and equipment investment expense is large.
Utility model content
The purpose of this utility model is to provide micro-grid connection interface integrated apparatus, not only realize the protection of grid-connected some circuit, measurement, remote control, grid-connected some circuit synchronization function, teletransmission, far jump function, also have the quality of power supply monitor and remote meter-reading function.
The utility model adopts following technical proposals:
Micro-grid connection interface integrated apparatus, comprises following several plug-in unit:
For device provides the power insert of power supply: described power insert comprises Power Entry Module, rectification module electric current being carried out to rectification that external 48VDC inputs, external 48VDC input is converted to 5VDC and 24VDC device operating voltage DC/DC modular converter and power supply output module;
For device provides man-machine interface and background communication function, and complete all observing and controlling algorithms and the CPU card of logic function; Module and state instruction output module when module, state instruction output module, standard time clock pair when described CPU card comprises CPU, DSP, images outputting incoming interface, USB interface, the special RS-232 interface of debugging, serial communication RS485 interface, standard time clock pair; During described standard time clock pair, when module, state instruction output module, standard time clock pair, module is connected with CUP with DSP respectively with state instruction output module;
For display monitoring target and plant running state, reception staff input the man-machine interaction display module of information and display translation information; Man-machine interaction display module specifically comprises keyboard and mouse unit, can get an electric shock screen display unit; Keyboard and mouse unit is connected to CPU card input; The screen display unit that can get an electric shock is connected to CPU card output;
For gathering remote signalling amount, exporting the input and output plug-in unit of control command, output device block signal, alarm signal; Input and output plug-in unit specifically comprise open into module, output module, photoelectric isolation module, output array device, control relay and teletransmission/far away are jumped, state instruction output module;
For implement device and higher level's Dispatching Control System or other telemechanical plug-in units having the system of demand to communicate to this device;
For realizing carrying out by GOOSE mechanism the GOOSE communication plug readed over; Described GOOSE communication plug is connected with CPU card;
For realizing the sampling plate plug-in unit gathering ac input signal; Specifically comprise voltage acquisition module, low pass filtered involve ADC, module such as tester input interface, state instruction output etc.; The input interface of tester is introduced by 48 core HARMIK interfaces of ADC Insertion panel;
Described voltage acquisition module is connected the input of CPU and DSP respectively by low pass filter and ADC module, and the output of described CPU carries out communication with remote server respectively by GOOSE communication plug; The input of the output port connection control relay of CPU; The input of described DSP connects the output opened into module, the output of DSP connects the output outputing module, described module of outputing adopts output array, the input of one end connection control relay of the output of described output array, the input of other end difference connection status indicator light.
Described telemechanical plug-in unit has two-way optical-fibre channel, and two-way optical-fibre channel is 2M passage, and single mode FC connects power insert.
The utility model integrate micro-grid connection point circuit defencive function, measurement function, distant control function, transporting function, far jump function, synchronization function, quality of power supply function for monitoring and meter-reading function; solve the deficiency of micro-grid connection point place equipment redundancy; reduce the cost of investment of generation of electricity by new energy, facilitate further developing of New Energy Industry.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model.
Embodiment
As shown in Figure 1, below in conjunction with accompanying drawing, preferred implementation of the present utility model is further described.Should be appreciated that, following preferred implementation described here only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model with this.Those skilled in the art can according to principle of the present utility model, makes various amendment, improvement and can not depart from claim of enclosing and limit protection range to the utility model.
Micro-grid connection interface integrated apparatus, comprises following several plug-in unit:
For device provides the power insert of power supply: described power insert comprises Power Entry Module, rectification module electric current being carried out to rectification that external 48VDC inputs, external 48VDC input is converted to 5VDC and 24VDC device operating voltage DC/DC modular converter and power supply output module;
For device provides man-machine interface and background communication function, and complete all observing and controlling algorithms and the CPU card of logic function; Module and state instruction output module when module, state instruction output module, standard time clock pair when described CPU card comprises CPU, DSP, images outputting incoming interface, USB interface, the special RS-232 interface of debugging, serial communication RS485 interface, standard time clock pair; During described standard time clock pair, when module, state instruction output module, standard time clock pair, module is connected with CUP with DSP respectively with state instruction output module; CPU card, this plug-in unit is device core, be made up of high performance central processing unit (CPU) and digital signal processor (DSP), the universal component of CPU implement device and man-machine interface and background communication function, DSP completes all observing and controlling algorithms and logic function.Device sample rate is every cycle 64 point, carries out parallel calculating in real time to all observing and controlling algorithms and logic at each sampled point, makes device have very high precision and inherent reliability and fail safe.The utility model hardware configuration is equipped with: CPU, it adopts CPU and DSP Combined Treatment technology, accelerate gather and calculate several times and precision, make to realize grid-connected point multi-function and merge and become possibility.
For display monitoring target and plant running state, reception staff input the man-machine interaction display module of information and display translation information; Man-machine interaction display module specifically comprises keyboard and mouse unit, can get an electric shock screen display unit; Keyboard and mouse unit is connected to CPU card input; The screen display unit that can get an electric shock is connected to CPU card output;
For gathering remote signalling amount, exporting the input and output plug-in unit of control command, output device block signal, alarm signal; Input and output plug-in unit specifically comprise open into module, output module, the module such as photoelectric isolation module, output array device, control relay and teletransmission/far away are jumped, state instruction output; When this device can receive pair in the following manner, signal realizes GPS couple: during (1) passive 1PPS pulse per second (PPS) pair and when 1PPM divides pulse pair, " pair time " through the optocoupler plug-in unit of 48V opens into reception;
(2) during the 1PPS pulse per second (PPS) pair of RS485 differential signal, 1PPM is when dividing pulse pair or IRIG-B coded signal, accesses through CPU board IRIG-B+, IRIG-B-terminal; During B code pair, basic configuration is electric B code, can match as light mouth;
Switch acquisition: device can primary equipment state in acquisition station, first carries out Phototube Coupling conversion to signal input, and carry out timing sampling process after hardware and software filtering.When remote signalling amount changes, measure and control device carries out recording and stamping markers, forms sequence of events recording (SequenceofEvents, SOE).
Realize the distant control function of grid-connected some circuit, device supports a distant place/handle input on the spot, when device carries out backstage or dispatching remote control, handle must be made to be in " distant place " position; When device carries out local panel operation, handle must be made to be in " locality " position.
For implement device and higher level's Dispatching Control System or other telemechanical plug-in units having the system of demand to communicate to this device; For realizing carrying out by GOOSE mechanism the GOOSE communication plug readed over; Described GOOSE communication plug is connected with CPU card;
For realizing the sampling plate plug-in unit gathering ac input signal; Specifically comprise voltage acquisition module, low pass filtered involve ADC, module such as tester input interface, state instruction output etc.; The input interface of tester is introduced by 48 core HARMIK interfaces of ADC Insertion panel; Described sampling plate plug-in unit without aerial lug, with exchange input plug-in unit be connected, its Main Function is: filtering high-frequency signal, adjustment analog signal level, access tester.Because CPU and DSP sampling is just completely independent from active element, therefore ensure that arbitrary device failure is unlikely and cause false protection.
Described voltage acquisition module is connected the input of CPU and DSP respectively by low pass filter and ADC module, and the output of described CPU carries out communication with remote server respectively by GOOSE communication plug; The input of the output port connection control relay of CPU; The input of described DSP connects the output opened into module, the output of DSP connects the output outputing module, described module of outputing adopts output array, the input of one end connection control relay of the output of described output array, the input of other end difference connection status indicator light.
Described telemechanical plug-in unit has two-way optical-fibre channel, and two-way optical-fibre channel is 2M passage, and single mode FC connects power insert.Device adopts IEC61850 communication standard, utilize Fast Ethernet characteristic, by GOOSE(object-oriented transformer station general purpose event) realize information exchange and supervision interval connection blocking function between protection, with protection system unified Modeling, unified networking, share unified information platform, improve the fail safe of electrical secondary system, reliability; The application of IEC61850, saves protocol transform equipment, eliminates prepositionly to wait intermediate communication link, reduce run, maintenance, maintenance workload, save the secondary device that repeats to reach cost-effective object.
This device has 3 independently Ethernet interfaces: the 1st Ethernet interface can be used for test and inking device by assistant software.Also configurable support DLT645-1997-102 stipulations, realize the meter-reading function of kilowatt-hour meter.2nd Ethernet interface configurable support IEC61850, IEC60870-5-103 stipulations, with monitoring Background communication; Also can be configured to self-defined 103 stipulations, carry out communication with energy-storage system.3rd Ethernet interface configurable support IEC61850 or IEC60870-5-103 stipulations.
Function that device has " maintenance ", can use when corresponding primary equipment or relay protection device overhaul, and when device is in hardware configuration base described above, has following function in actual use by this device:
Defencive function: two-part underfrequency protection, two-part over frequency protection, two-part low-voltage variation, two-part overvoltage protection, o-volt protection, again press off lock side to overcurrent, zero-sequencedirectional protection, reverse power protection, PT break alarm, overload alarm, CT break alarm, control loop template alarm, far jump protection, three-phase single shot reclosing.
Realize the of ac collection of grid-connected some circuit, the voltage of outlet line, electric current, residual voltage, zero-sequence current, line voltage effective value, and calculate the parameter such as active power, reactive power, power factor, frequency, harmonic wave of every bar circuit.
When inspecting state, the order of shielding remote control, remote measurement amount, remote signalling amount puts corresponding quality position.
Synchronization function: comprise circuit breaker asynchronous switch-on function, supports the functions such as the difference frequency combined floodgate of circuit breaker, differential pressure combined floodgate and combined floodgate with no pressure, supports amplitude compensation and the phase angle compensation function of putting both sides voltage the same period.
Device possesses the auxiliary adjustment function same period, has independently communication port and energy-storage system to carry out communication, gives energy-storage system by putting the voltage magnitude of both sides, phase place and frequency the same period, and exports when the same period checks and regulate the same period that hard contact point signal controls energy-storage system.
Quality of power supply function for monitoring: can monitor up to 25 subharmonic, the containing ratio of calculating voltage, line current 0-25 subharmonic.The total harmonic distortion factor of three-phase voltage, electric current.Three-phase current unbalance degree, voltage unbalance factor monitor.Measuring intervals of TIME is 10 cycles, and positive and negative, residual voltage and positive and negative, zero-sequence current data, carry out continuous print tri-phase unbalance factor index measurement.The supervision of voltage deviation
Micro-grid connection interface integrated apparatus is applicable to photovoltaic, wind-powered electricity generation distributed new forms of energy micro-grid system also site place protecting control device, is equally applicable to highway, electric railway, subway, mine, petrochemical industry, metallurgy, harbour, water supply, environmental protection, machine room and other industrial automations.
Claims (2)
1. micro-grid connection interface integrated apparatus, is characterized in that: comprise following several plug-in unit:
For device provides the power insert of power supply: described power insert comprises Power Entry Module, rectification module electric current being carried out to rectification that external 48VDC inputs, external 48VDC input is converted to 5VDC and 24VDC device operating voltage DC/DC modular converter and power supply output module;
For device provides man-machine interface and background communication function, and complete all observing and controlling algorithms and the CPU card of logic function; Module and state instruction output module when module, state instruction output module, standard time clock pair when described CPU card comprises CPU, DSP, images outputting incoming interface, USB interface, the special RS-232 interface of debugging, serial communication RS485 interface, standard time clock pair; During described standard time clock pair, when module, state instruction output module, standard time clock pair, module is connected with CUP with DSP respectively with state instruction output module;
For display monitoring target and plant running state, reception staff input the man-machine interaction display module of information and display translation information; Man-machine interaction display module specifically comprises keyboard and mouse unit, can get an electric shock screen display unit; Keyboard and mouse unit is connected to CPU card input; The screen display unit that can get an electric shock is connected to CPU card output;
For gathering remote signalling amount, exporting the input and output plug-in unit of control command, output device block signal, alarm signal; Input and output plug-in unit specifically comprise open into module, output module, photoelectric isolation module, output array device, control relay and teletransmission/far away are jumped, state instruction output module;
For implement device and higher level's Dispatching Control System or the telemechanical plug-in unit that has the system of demand to communicate to this device;
For realizing carrying out by GOOSE mechanism the GOOSE communication plug readed over; Described GOOSE communication plug is connected with CPU card;
For realizing the sampling plate plug-in unit gathering ac input signal; Specifically comprise voltage acquisition module, low pass filtered involve ADC, tester input interface, state instruction output module; The input interface of tester is introduced by 48 core HARMIK interfaces of ADC Insertion panel;
Described voltage acquisition module is connected the input of CPU and DSP respectively by low pass filter and ADC module, and the output of described CPU carries out communication with remote server respectively by GOOSE communication plug; The input of the output port connection control relay of CPU; The input of described DSP connects the output opened into module, the output of DSP connects the output outputing module, described module of outputing adopts output array, the input of one end connection control relay of the output of described output array, the input of other end difference connection status indicator light.
2. micro-grid connection interface integrated apparatus according to claim 1, it is characterized in that: described telemechanical plug-in unit has two-way optical-fibre channel, two-way optical-fibre channel is 2M passage, and single mode FC connects power insert.
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| CN201520792777.6U CN205160091U (en) | 2015-10-14 | 2015-10-14 | Little electric wire netting grid -connected interface integrated device |
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| CN201520792777.6U CN205160091U (en) | 2015-10-14 | 2015-10-14 | Little electric wire netting grid -connected interface integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667066A (en) * | 2017-10-20 | 2018-10-16 | 天津瑞能电气有限公司 | A kind of intelligent micro-grid grid entry point monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667066A (en) * | 2017-10-20 | 2018-10-16 | 天津瑞能电气有限公司 | A kind of intelligent micro-grid grid entry point monitoring device |
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