CN203434753U - Communication system for mironet for accessing into power distribution network - Google Patents
Communication system for mironet for accessing into power distribution network Download PDFInfo
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- CN203434753U CN203434753U CN201320600252.9U CN201320600252U CN203434753U CN 203434753 U CN203434753 U CN 203434753U CN 201320600252 U CN201320600252 U CN 201320600252U CN 203434753 U CN203434753 U CN 203434753U
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- serial peripheral
- peripheral interface
- communication system
- filter
- demodulator
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The utility model relates to a communication system for a micronet for accessing into a power distribution network. The communication system comprises a modem, a transmitting channel, a receiving channel and a power supply. The transmitting channel comprises a second wave filter, a programmable gain amplifier, a digital-to-analog converter and a second serial peripheral interface. The receiving channel comprises a high-speed amplifier, a first wave filer, an analog-to-digital converter and a first serial peripheral interface. The communication system provided by the utility model is based on power line carrier wave and does not require network establishment again. Data transmission can be performed as long as a power line exists, thereby remarkably reducing system cost, improving reliability and simultaneously realizing effective communication.
Description
Technical field
The utility model belongs to the technical field that microgrid is incorporated to intelligent distribution network, relates in particular to a kind of communication system of microgrid access power distribution network.
Background technology
Along with the development of the renewable energy power generation technology such as photovoltaic, wind-powered electricity generation, distributed power generation day by day becomes a kind of effective way that meets load growth demand, raising comprehensive utilization rate of energy source, raising power supply reliability, and is widely used in power distribution network.But the extensive infiltration of distributed power generation has also produced some negative effects, as higher in single distributed energy cost of access, control complex device is wasted, the voltage of large system and frequency is existed to impact etc.The operational mode that this has limited distributed power generation, has weakened its advantage and potential.Microgrid is integration and the utilization of distributed generation technology and renewable energy power generation technology, a plurality of distributed energies integrate form access again that intelligent distribution network capacity expands after microgrids and inner in-situ balancing after microgrid accept again distribution scheduling will be easily a lot.
And power distribution network intellectuality after access microgrid need to solve a series of problem: realize the interaction of microgrid client and network system; research and development meet electrical power distribution automatization system and the expanded function that the two-way exchange of electric power between distribution system and microgrid and information requires; the Monitoring Data acquisition method of the aspects such as research microgrid is incorporated into the power networks, environmental aspect, the advanced and applied technology of the aspects such as failure diagnosis, protection definite value distant place setting and control, microgrid power prediction and optimization of research microgrid access distribution network systems.These require all to need the communication technology of two-way exchange.Microgrid generating has from net and grid-connected two kinds of working methods.If two kinds of mode Dou You Utilities Electric Co.s control, can reduce as much as possible the impact of microgrid on large electrical network.
Summary of the invention
The problem that needs the communication technology of two-way exchange for the power distribution network for after access microgrid of mentioning in background technology, the utility model proposes the communication system that a kind of microgrid accesses power distribution network.
A communication system for microgrid access power distribution network, is characterized in that, described system comprises modulator-demodulator, sendaisle, receive path and power supply; Described sendaisle comprises the second filter, programmable gain amplifier, digital to analog converter and the second serial peripheral interface; Described receive path comprises high speed amplifier, the first filter, analog to digital converter and the first serial peripheral interface;
Wherein, described power supply is connected with modulator-demodulator, sendaisle and receive path respectively; Described modulator-demodulator is connected with microgrid by microgrid control centre, or is connected with intelligent distribution network by data concentrator;
Described modulator-demodulator is connected with the second filter with high speed amplifier respectively;
Described the second filter, programmable gain amplifier, digital to analog converter and the second serial peripheral interface are connected in turn;
Described high speed amplifier, the first filter, analog to digital converter and the first serial peripheral interface are connected in turn;
Described the first serial peripheral interface is connected with power line by coupled apparatus respectively with the second serial peripheral interface.
Described modulator-demodulator is connected by serial peripheral equipment interface SPI with high speed amplifier.
Described modulator-demodulator is connected by serial peripheral equipment interface SPI with the second filter.
The communication system of a kind of microgrid access power distribution network that the utility model proposes has been fallen low microgrid grid-connected system cost, has been increased reliability, has realized the client of intelligent grid requirement and the quick two-way communication of network system.
Accompanying drawing explanation
Fig. 1 is the structure chart of the communication system of a kind of microgrid access power distribution network that provides of the utility model;
Fig. 2 is the communication system connection layout that the utility model provides;
Wherein, 1-receive path; 2-sendaisle; 3-power line; 4-coupling transformer; 5-high-voltage capacitor; 6-Surge Protector; 7-coupled apparatus.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that, following explanation is only exemplary, rather than in order to limit scope of the present utility model and application thereof.
Fig. 1 is the structure chart of the communication system of a kind of microgrid access power distribution network that provides of the utility model.In Fig. 1, described system comprises modulator-demodulator, sendaisle 2, receive path 1 and power supply; Described sendaisle 2 comprises the second filter, programmable gain amplifier, digital to analog converter and the second serial peripheral interface; Described receive path 1 comprises high speed amplifier, the first filter, analog to digital converter and the first serial peripheral interface;
Wherein, described power supply is connected with modulator-demodulator, sendaisle 2 and receive path 1 respectively, powers to respectively modulator-demodulator, sendaisle 2 and receive path 1; Described modulator-demodulator is connected with the second filter with high speed amplifier respectively; Described the second filter, programmable gain amplifier, digital to analog converter and the second serial peripheral interface are connected in turn; Described high speed amplifier, the first filter, analog to digital converter and the first serial peripheral interface are connected in turn; Described the first serial peripheral interface is connected with power line 3 by coupled apparatus respectively with the second serial peripheral interface;
In the time of communication system transmitted signal, modulator-demodulator is modulated received signal, then send to the second filter to carry out filtering, and the later signal of filtering is amplified signal by programmable gain amplifier, digital to analog converter becomes the signal modulating into analog signal afterwards, to analog signal is sent on power line 3 by the second serial peripheral interface and coupled apparatus 7; When communication system receives signal, by the first serial peripheral interface and coupled apparatus 7, the signal on power line 3 is sent to analog to digital converter, the analog signal receiving is converted to digital signal, then by digital filter, carry out filtering, and send to modulator-demodulator to carry out signal demodulation after the later signal of filtering is amplified by high speed amplifier.
Fig. 2 is the communication system connection layout that the utility model provides.In Fig. 2, communication system is connected with microgrid by microgrid control centre, or is connected with intelligent distribution network by data acquisition unit; Simultaneous communication system is also connected with power line 3 by coupled apparatus 7; Wherein, coupled apparatus 7 comprises coupling transformer 4, high-voltage capacitor 5 and Surge Protector 6; High-voltage capacitor 5, for signal is carried out to filtering, is connected with electric wire with coupling transformer 4 high-pressure sides.Surge Protector 6 is connected electric wire and connects with coupling transformer 4 low-pressure sides, the surge of indirect thunder and lightning and direct effects of lightning or other instantaneous overvoltages is protected.
Communication system adopts two-way signaling transmission means, not only can microgrid signal be sent to intelligent distribution network by communication system; Also can intelligent distribution network signal be sent to microgrid by communication system.
Communication system provided by the utility model be take power line carrier as basis, does not need again to set up network, as long as live wire just can carry out data transmission, has reduced significantly system cost, has increased reliability, can realize effective communication simultaneously.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (3)
1. a communication system for microgrid access power distribution network, is characterized in that, described system comprises modulator-demodulator, sendaisle, receive path and power supply; Described sendaisle comprises the second filter, programmable gain amplifier, digital to analog converter and the second serial peripheral interface; Described receive path comprises high speed amplifier, the first filter, analog to digital converter and the first serial peripheral interface;
Wherein, described power supply is connected with modulator-demodulator, sendaisle and receive path respectively; Described modulator-demodulator is connected with microgrid by microgrid control centre, or is connected with intelligent distribution network by data concentrator;
Described modulator-demodulator is connected with the second filter with high speed amplifier respectively;
Described the second filter, programmable gain amplifier, digital to analog converter and the second serial peripheral interface are connected in turn;
Described high speed amplifier, the first filter, analog to digital converter and the first serial peripheral interface are connected in turn;
Described the first serial peripheral interface is connected with power line by coupled apparatus respectively with the second serial peripheral interface.
2. system according to claim 1, is characterized in that, described modulator-demodulator is connected by serial peripheral equipment interface SPI with high speed amplifier.
3. system according to claim 1, is characterized in that, described modulator-demodulator is connected by serial peripheral equipment interface SPI with the second filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600252.9U CN203434753U (en) | 2013-09-27 | 2013-09-27 | Communication system for mironet for accessing into power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600252.9U CN203434753U (en) | 2013-09-27 | 2013-09-27 | Communication system for mironet for accessing into power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434753U true CN203434753U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600252.9U Expired - Fee Related CN203434753U (en) | 2013-09-27 | 2013-09-27 | Communication system for mironet for accessing into power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451759A (en) * | 2015-08-07 | 2017-02-22 | 国网智能电网研究院 | Micro-power grid monitoring system based on power line carrier communication |
-
2013
- 2013-09-27 CN CN201320600252.9U patent/CN203434753U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451759A (en) * | 2015-08-07 | 2017-02-22 | 国网智能电网研究院 | Micro-power grid monitoring system based on power line carrier communication |
| CN106451759B (en) * | 2015-08-07 | 2020-06-30 | 全球能源互联网研究院 | Micro-grid monitoring system based on power line carrier communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140927 |
|
| EXPY | Termination of patent right or utility model |