CN103560583A - Micro-unit monitor based on DSP - Google Patents
Micro-unit monitor based on DSP Download PDFInfo
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- CN103560583A CN103560583A CN201310509692.8A CN201310509692A CN103560583A CN 103560583 A CN103560583 A CN 103560583A CN 201310509692 A CN201310509692 A CN 201310509692A CN 103560583 A CN103560583 A CN 103560583A
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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
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a micro-unit monitor based on a DSP. The micro-unit monitor comprises the DSP. The signal input end of the DSP is connected with a sampling and signal processing module, the sampling and signal processing module is used for collecting and processing microgrid operating parameters, the signal output end of the DSP is respectively connected with a load controller, a micro power supply controller and an energy storage controller through relays, and the input-output end of the DSP is in wireless communication with a microgrid central control unit through a GPRS module and in Ethernet communication with the microgrid central control unit through an Ethernet communication module, and is connected with a human-computer interaction device. The micro-unit monitor can monitor the operating states of a micro power supply, loads, an energy storage unit and other key nodes in a microgrid in real time, the operating information of the nodes is reported to the microgrid central control unit, the microgrid central control unit issues a control state according to the information of the nodes and a preset control strategy, the control state is fed back to the key nodes through the micro-unit monitor, and the reliable and economical operation in the microgrid is achieved.
Description
Technical field
The present invention relates to micro-electric power network technique field, especially a kind of infinitesimal watch-dog based on DSP.
Background technology
Micro-electrical network is a kind of network system being jointly comprised of load, micro-power supply, energy-storage system etc., by integrating the relation between distributed power generation unit and power distribution network, in a regional area, directly distributed power source, electric power networks and terminal use are linked together, can realize easily Cogeneration Plan, optimize and improve the utilization ratio of the energy, alleviate the impact of energy power system on environment, promotion distributed power source is grid-connected, reduce the burden of large electrical network, improve the security reliability of electrical network.Some key nodes in micro-grid system, such as distributed power source, load, energy storage device, these nodes are commonly referred to infinitesimal.
The infinitesimal controller major function of present stage is, when micro-electrical network proceeds to islet operation, load to be powered without the distributed power source that is automatically brought to interrupting; When micro-electrical network proceeds to while being incorporated into the power networks, automatically regulate voltage magnitude and the frequency at micro-electrical network points of common connection place synchronously grid-connected to realize without impacting, yet to the key node in micro-electrical network, it is infinitesimal, cannot carry out collection, measurement, monitoring to its running status, and the function that communicates of shortage and microgrid central controller.In addition, more and more higher along with to micro-electrical network internal electric energy quality requirement, also needs microgrid central controller to have protection observing and controlling function, therefore need a kind of infinitesimal running status is monitored and controlled, and the device communicating with microgrid central controller.
Summary of the invention
The object of the present invention is to provide and a kind ofly can realize to the Real-Time Monitoring of infinitesimal running status, with microgrid central controller real time communication, realize the infinitesimal watch-dog based on DSP of micro-electrical network reliable and economic operation.
For achieving the above object, the present invention has adopted following technical scheme: a kind of infinitesimal watch-dog based on DSP, comprise dsp processor, its signal input part is connected with sampling and signal processing module for micro-operation of power networks parameter is gathered and processed, its signal output part by relay respectively with load governor, micro-power-supply controller of electric, energy storage controller is connected, its input/output terminal is by GPRS module and microgrid central controller radio communication, by ethernet communication module and microgrid central controller ethernet communication, its input and output termination human-computer interaction device.
The input and output termination memory of described dsp processor, the input/output terminal of dsp processor expands to RS485 serial ports by level transferring chip, dsp processor is by RS485 serial ports and grid-connected/energy storage inverter serial communication, the signal output part of dsp processor is connected with the input of photoelectric isolating circuit, the output of photoelectric isolating circuit is connected with load governor, micro-power-supply controller of electric, energy storage controller respectively by relay, and described memory comprises SD card and eeprom memory.
Described sampling and signal processing module comprise Current Transmit for gathering micro-electrical network current signal, for gathering the voltage transformer pt of micro-electrical network voltage signal, the output of Current Transmit, voltage transformer pt is all connected with the input of A/D converter, the output of A/D converter is connected with the input of optocoupler, the output of optocoupler is connected with the input of amplifier, and the output of amplifier is connected with the A/D mouth of dsp processor.
Described human-computer interaction device adopts touch-screen.
Described ethernet communication module adopts W5100 chip.
Described dsp processor adopts TMS320F28335 chip, its GPIO mouth is connected with the input of photoelectric isolating circuit, its UART0 interface is connected with GPRS module, its UART1 interface is connected with level transferring chip, its ETH mouth is connected with ethernet communication module, its SPI mouth is connected with human-computer interaction device, SD card respectively, its I
2c mouth is connected with eeprom memory.
Described A/D converter adopts MAX11046 chip.
As shown from the above technical solution, the present invention can carry out Real-Time Monitoring to the running status of the key nodes such as micro-power supply, load, energy storage in micro-electrical network, the operation information of each node is reported to microgrid central controller, microgrid central controller is according to the information of each node, according to preset control strategy, issue state of a control, the present invention feeds back to each key node by state of a control, realizes the reliable and economic operation in micro-electrical network.While breaking down in micro-electrical network, the present invention by the fault information reporting obtaining to microgrid central controller, microgrid central controller is according to preset troubleshooting pattern, issue safety control strategy, by the present invention, carry out control, the infinitesimal node that excision fault may affect, guarantees the safe operation of whole micro-electrical network.
Accompanying drawing explanation
Fig. 1 is circuit structure block diagram of the present invention;
Fig. 2 is sampling and the circuit block diagram of signal processing module in Fig. 1;
Fig. 3 is micro-grid system management schematic diagram.
Embodiment
A kind of infinitesimal watch-dog based on DSP, comprise dsp processor 1, its signal input part is connected with sampling and signal processing module 2 for micro-operation of power networks parameter is gathered and processed, its signal output part is connected with load governor, micro-power-supply controller of electric, energy storage controller respectively by relay, its input/output terminal passes through GPRS module and microgrid central controller 3 radio communications, passes through ethernet communication module and microgrid central controller 3 ethernet communications, its input and output termination human-computer interaction device, described human-computer interaction device adopts touch-screen.The parameters such as the voltage in 2 pairs of micro-electrical networks of described sampling and signal processing module, electric current, frequency, harmonic wave are measured in real time, and to signal isolate, amplification, filtering process; Described GPRS module is carried out radio communication for realizing with outside microgrid central controller 3; Described ethernet communication module is carried out ethernet communication for realizing with outside microgrid central controller 3; Described relay is for responding the remote control output signal of dsp processor 1; Described human-computer interaction device is used for showing real time data and operation result.As shown in Figure 1.
As shown in Figure 1, the input and output termination memory of described dsp processor 1, the input/output terminal of dsp processor 1 expands to RS485 serial ports by level transferring chip, dsp processor 1 is by RS485 serial ports and grid-connected/energy storage inverter serial communication, the signal output part of dsp processor 1 is connected with the input of photoelectric isolating circuit, the output of photoelectric isolating circuit is connected with load governor, micro-power-supply controller of electric, energy storage controller respectively by relay, and described memory comprises SD card and eeprom memory.As shown in Figure 1.Described ethernet communication module adopts W5100 chip.Described RS485 serial ports for realize with outside grid-connected/energy storage inverter carries out serial communication; Described memory is for program code stored and data message.
As shown in Figure 2, described sampling and signal processing module 2 comprise Current Transmit for gathering micro-electrical network current signal, for gathering the voltage transformer pt of micro-electrical network voltage signal, the output of Current Transmit, voltage transformer pt is all connected with the input of A/D converter, the output of A/D converter is connected with the input of optocoupler, the output of optocoupler is connected with the input of amplifier, and the output of amplifier is connected with the A/D mouth of dsp processor 1.Described A/D converter adopts MAX11046 chip, and described optocoupler can be isolated the signal gathering, and amplifier is amplified signal.
As shown in Figure 1, described dsp processor 1 adopts TMS320F28335 chip, there is the data/address bus of 32, maximum clock can reach 150MHz, and its GPIO mouth is connected with the input of photoelectric isolating circuit, and its UART0 interface is connected with GPRS module, its UART1 interface is connected with level transferring chip, its ETH mouth is connected with ethernet communication module, and its SPI mouth is connected with human-computer interaction device, SD card respectively, and its I2C mouth is connected with eeprom memory.The present invention is when work, in micro-electrical network, the operating state signal of key node is after the collection of PT, CT, first enter MAX11046 chip, then by the result after A/D conversion, give TMS320F28335 chip, the GPIO of TMS320F28335 chip is through disconnection or the adhesive of photoelectric isolating circuit control relay; TMS320F28335 chip completes ethernet communication through W5100 chip; The URAT1 of TMS320F28335 chip realizes RS485 communication through level transferring chip.
As shown in Figure 3, at the scene during actual motion, dsp processor 1 is responsible for obtaining on-the-spot transient state service data, obtained data are processed, by GPRS module or ethernet communication module, be transferred to microgrid central controller 3, and accept the control command of microgrid central controller 3, or control command translation is transmitted to corresponding controller, human-computer interaction device has local man-machine interface simultaneously, can realize browsing and controlling of local data.The safe and reliable operation of the whole micro-electrical network of microgrid central controller 3 unified coordination and administration, the state information that microgrid central controller 3 reception the present invention and PCC controller are uploaded, controller under the present invention mainly contains micro-power-supply controller of electric, energy storage controller, load governor, wherein, meritorious and the reactive power that each DG of micro-power controller controls sends, the situation of exerting oneself of energy storage controller monitoring energy storage device, load governor can be used as the interface of controllable load, in emergency circumstances can excise local load.Microgrid central controller 3 be positioned at local infinitesimal watch-dog exchange message, set the operating point of micro-power supply, energy storage, load, operation conditions to above key node is monitored, and can be when there is dynamic change in micro-electric network composition, microgrid central controller 3 can maintain according to setting in advance the safe operation of micro-electrical network.
In sum, the present invention can carry out Real-Time Monitoring to the running status of the key nodes such as micro-power supply, load, energy storage in micro-electrical network, the operation information of each node is reported to microgrid central controller 3, microgrid central controller 3 is according to the information of each node, according to preset control strategy, issue state of a control, the present invention feeds back to each key node by state of a control, realizes the reliable and economic operation in micro-electrical network.While breaking down in micro-electrical network, the present invention by the fault information reporting obtaining to microgrid central controller 3, microgrid central controller 3 is according to preset troubleshooting pattern, issue safety control strategy, by the present invention, carry out control, the infinitesimal node that excision fault may affect, guarantees the safe operation of whole micro-electrical network.
Claims (7)
1. the infinitesimal watch-dog based on DSP, it is characterized in that: comprise dsp processor (1), its signal input part is connected with sampling and signal processing module (2) for micro-operation of power networks parameter is gathered and processed, its signal output part is connected with load governor, micro-power-supply controller of electric, energy storage controller respectively by relay, its input/output terminal passes through GPRS module and microgrid central controller (3) radio communication, passes through ethernet communication module and microgrid central controller (3) ethernet communication, its input and output termination human-computer interaction device.
2. the infinitesimal watch-dog based on DSP according to claim 1, it is characterized in that: the input and output termination memory of described dsp processor (1), the input/output terminal of dsp processor (1) expands to RS485 serial ports by level transferring chip, dsp processor (1) is by RS485 serial ports and grid-connected/energy storage inverter serial communication, the signal output part of dsp processor (1) is connected with the input of photoelectric isolating circuit, the output of photoelectric isolating circuit by relay respectively with load governor, micro-power-supply controller of electric, energy storage controller is connected, described memory comprises SD card and eeprom memory.
3. the infinitesimal watch-dog based on DSP according to claim 1, it is characterized in that: described sampling and signal processing module (2) comprise Current Transmit for gathering micro-electrical network current signal, for gathering the voltage transformer pt of micro-electrical network voltage signal, the output of Current Transmit, voltage transformer pt is all connected with the input of A/D converter, the output of A/D converter is connected with the input of optocoupler, the output of optocoupler is connected with the input of amplifier, and the output of amplifier is connected with the A/D mouth of dsp processor (1).
4. the infinitesimal watch-dog based on DSP according to claim 1, is characterized in that: described human-computer interaction device adopts touch-screen.
5. the infinitesimal watch-dog based on DSP according to claim 1, is characterized in that: described ethernet communication module adopts W5100 chip.
6. the infinitesimal watch-dog based on DSP according to claim 2, it is characterized in that: described dsp processor (1) adopts TMS320F28335 chip, its GPIO mouth is connected with the input of photoelectric isolating circuit, its UART0 interface is connected with GPRS module, its UART1 interface is connected with level transferring chip, its ETH mouth is connected with ethernet communication module, and its SPI mouth is connected with human-computer interaction device, SD card respectively, its I
2c mouth is connected with eeprom memory.
7. the infinitesimal watch-dog based on DSP according to claim 3, is characterized in that: described A/D converter adopts MAX11046 chip.
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| CN201310509692.8A CN103560583A (en) | 2013-10-25 | 2013-10-25 | Micro-unit monitor based on DSP |
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| CN201310509692.8A CN103560583A (en) | 2013-10-25 | 2013-10-25 | Micro-unit monitor based on DSP |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471103A (en) * | 2015-12-16 | 2016-04-06 | 大连尚能科技发展有限公司 | Intelligent monitoring and pre-warning system for full-power converter |
| CN107732908A (en) * | 2017-11-20 | 2018-02-23 | 天津瑞能电气有限公司 | A kind of micro-grid load side EMS based on wireless network |
| CN107910960A (en) * | 2017-12-20 | 2018-04-13 | 天津瑞能电气有限公司 | A kind of load condition monitoring device micro-capacitance sensor early period |
| 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 |
| CN109713792A (en) * | 2018-12-20 | 2019-05-03 | 天津瑞能电气有限公司 | A kind of intelligent micro-grid central controller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105471103A (en) * | 2015-12-16 | 2016-04-06 | 大连尚能科技发展有限公司 | Intelligent monitoring and pre-warning system for full-power converter |
| 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 |
| CN107732908A (en) * | 2017-11-20 | 2018-02-23 | 天津瑞能电气有限公司 | A kind of micro-grid load side EMS based on wireless network |
| CN107910960A (en) * | 2017-12-20 | 2018-04-13 | 天津瑞能电气有限公司 | A kind of load condition monitoring device micro-capacitance sensor early period |
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Application publication date: 20140205 |