CN102916484A - Distributed integral power supply system based on protocol IEC 61850 - Google Patents

Distributed integral power supply system based on protocol IEC 61850 Download PDF

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Publication number
CN102916484A
CN102916484A CN2012103781545A CN201210378154A CN102916484A CN 102916484 A CN102916484 A CN 102916484A CN 2012103781545 A CN2012103781545 A CN 2012103781545A CN 201210378154 A CN201210378154 A CN 201210378154A CN 102916484 A CN102916484 A CN 102916484A
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CN
China
Prior art keywords
power
supply system
monitoring
energy
power supply
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Pending
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CN2012103781545A
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Inventor
郭占栋
于士友
孙健
王宁
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QINGDAO HARDHITTER ELECTRIC Co Ltd
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QINGDAO HARDHITTER ELECTRIC Co Ltd
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Priority to CN2012103781545A priority Critical patent/CN102916484A/en
Publication of CN102916484A publication Critical patent/CN102916484A/en
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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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators
    • 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
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

Abstract

The invention discloses a distributed integral power supply system based on a protocol IEC 61850. The distributed integral power supply system comprises a control system, a power grid, a battery system, a load, a new-energy power supply system and an electric vehicle charging power supply system. The power grid supplies power for the load and charges the battery system, and if the power grid is in failure or in power outage, then the battery system supplies power for the load through the control system. The new-energy power supply system, the electric vehicle charging power supply system, the power grid and the battery system are connected in parallel to access to the control system. As the power supply systems for various stations, the new-energy power supply system and the electric vehicle charging power supply system are integrated to form the integral power supply system, the integral power supply system is a distributed energy management system with power generation, supply, storage and feed functions and realizes effective circulation and utilization of energy among different systems, and accordingly energy utilization rate is increased greatly while loss is reduced.

Description

Distributed integration power-supply system based on the IEC61850 agreement
Technical field
The invention belongs to the power-supply management system technical field of transformer station, be specifically related to a kind of power-supply system based on the IEC61850 agreement.
Background technology
Automation Technology of Digitized Transformer is the once change that has milestone significance in the Substation Automation System development, will produce far-reaching influence to the each side of electric substation automation system.Three main features of digital transformer substation are exactly " primary equipment is intelligent; secondary device networking; meet the IEC61850 standard ", be that the interior information of digital transformer substation is all accomplished digitlization, the information transmission realizes networking, traffic model reaches standardization, makes the unified information platform of various device and function sharing.This all has significant lifting than conventional substation so that Digitized transformation stands in system reliability, economy, easy maintenance aspect.
Digital transformer substation has also proposed intelligent, networked demand to station power source system, and integration power-supply system arises at the historic moment.But integration power-supply system in the market all is that original direct current system, AC system, the power supply system for communications, ups power system are carried out simple combination, Fig. 1 is prior art transformer station integration power-supply system schematic diagram, mainly be to add one deck in the rear end of original each station power source system, add an integrated main monitoring unit, monitor each station power source system main monitoring unit, carry out protocol conversion access transformer station network system by the IEC61850 conversion unit of protocol again.Since added one deck monitor network and communication bus various, complexity is higher, reliability is lower, and the IEC61850 agreement realizes that by conversion unit of protocol intelligent, networked degree is lower.Fig. 2 is prior art transformer station integration power-supply system energy flow schematic diagram, and Inverter, power supply module for communication etc. directly is articulated on the direct current output bus, the batteries of having saved other station power source systems.But energy or one-way flow, energy consumption does not reduce, and intelligent degree is lower, and is interactive relatively poor.
Summary of the invention
The defects that exists in order to overcome the prior art field, the object of the invention is to, a kind of distributed integration power-supply system based on the IEC61850 agreement is provided, solve existing transformer station and use intellectuality, the networked degree of integration power-supply system lower, energy consumption is large, interactive relatively poor problem.
Distributed integration power-supply system based on the IEC61850 agreement provided by the invention, it comprises control system, electrical network, battery system and load, electrical network is load supplying by control system and is the battery system charging, when electric network fault or power failure, be load supplying by battery system by control system; It also comprises new forms of energy power-supply system and charging electric vehicle power-supply system, new forms of energy power-supply system, charging electric vehicle power-supply system and electrical network and battery system access control system in parallel; Described new forms of energy power-supply system is load supplying, charges to battery system and charging electric vehicle power-supply system by control system, and the new forms of energy power-supply system will be had more than needed energy feedback to electrical network by the grid inverters of control system; Described new forms of energy power-supply system and electrical network are load supplying jointly, are battery system and electric automobile power supply system charging; When electric network fault or power failure, be load supplying jointly by new forms of energy power-supply system, battery system and charging electric vehicle power-supply system; Described control system comprises background devices, main monitoring, sub-monitoring, communication bus and monitoring unit, power module, described background devices is connected with main monitoring by the background communication bus, and described main monitoring, sub-monitoring, monitoring unit, power module all are connected on the same communication bus; Described son monitoring is DC power supply monitoring, AC power monitoring, communication power supply monitoring, inverter monitoring, and above-mentioned any a few seed monitoring are in parallel to be connected with communication bus; The built-in IEC61850 agreement of described main monitoring; Described each son monitoring enters for hot joining, and monitors redundancy backup with the master.
Distributed integration power-supply system based on the IEC61850 agreement provided by the invention, its beneficial effect is, adopt field bus technique, direct and the sub-monitoring communications of main monitoring, sub-monitoring can enter by hot joining, with main monitoring redundancy backup, and the built-in IEC61850 agreement of main monitoring, directly access transformer station network system has improved the reliability of system, intelligent and networked degree greatly; New forms of energy power-supply system and the charging electric vehicle power-supply systems such as wind energy, solar energy have been integrated, make integration power-supply system become a distributed energy management system with generating, power supply, energy storage, energy regenerative, energy effectively flows between each system, utilizes, greatly improve energy utilization rate, reduced loss.
Description of drawings
Fig. 1 is prior art transformer station integration power-supply system schematic diagram;
Fig. 2 is prior art transformer station integration power-supply system energy flow schematic diagram;
Fig. 3 is the control system structural representation of the embodiment of the invention;
Fig. 4 is the energy flow schematic diagram of the embodiment of the invention.
Mark among the figure:
1. background devices; 2. main monitoring; 3. son monitoring; 4. monitoring unit, power module; 5. communication bus.
Embodiment
With reference to the accompanying drawings, in conjunction with an embodiment, the distributed integration power-supply system based on the IEC61850 agreement provided by the invention is described in detail.
Embodiment
With reference to Fig. 3-Fig. 4, distributed integration power-supply system based on the IEC61850 agreement of the present invention, it comprises control system, electrical network, battery system and load, electrical network is load supplying by control system and is the battery system charging, when electric network fault or power failure, be load supplying by battery system by control system; It also comprises new forms of energy power-supply system and charging electric vehicle power-supply system, new forms of energy power-supply system, charging electric vehicle power-supply system and electrical network and battery system access control system in parallel; Described new forms of energy power-supply system is load supplying, charges to battery system and charging electric vehicle power-supply system by control system, and the new forms of energy power-supply system will be had more than needed energy feedback to electrical network by the grid inverters of control system; Described new forms of energy power-supply system and electrical network are load supplying jointly, are battery system and electric automobile power supply system charging; When electric network fault or power failure, be load supplying jointly by new forms of energy power-supply system, battery system and charging electric vehicle power-supply system; Described control system comprises background devices 1, main monitoring 2, son monitoring 3, communication bus 5 and monitoring unit, power module 4, described background devices 1 is connected with main monitoring 2 by the background communication bus, and described main monitoring 2, son monitoring 3, monitoring unit, power module 4 all are connected on the same communication bus 5; Described son monitoring 3 is that DC power supply is monitored, AC power is monitored, communication power supply is monitored, the inverter monitoring, and above-mentioned any a few seed monitoring 3 parallel connections are connected with communication bus 5; Described main monitoring 2 built-in IEC61850 agreements; Described each son monitors 3 for hot joining enters, and monitors 2 redundancy backups with the master.
Main system's control command is sent in main monitoring 2, monitor 3 by specific data framing bit by communication bus 5 notice, son monitoring 3 is only intercepted the data on the communication bus 5 and is shown, communication bus 5 is not sent control command, son monitoring 3 is when the work framing bit of intercepting less than main monitoring 2, to automatically fulfil the control responsibility of son monitoring 3, the state of display monitoring unit, power module 4, data transmission efficiency obviously improves; Main monitoring 2, son monitoring 3, all monitoring unit, power modules 4 all are connected on the same fieldbus 5, directly carry out data sharing communication; Main monitoring 2 built-in IEC61850 agreements are directly by network interface access transformer station network system.
Main monitoring 2 detects the operating state of each power-supply system of control, module etc. by communication bus 5, the output of new forms of energy power-supply system, DC power supplier output, battery system input, power supply module for communication input, Inverter input, combining inverter input, the input of charging electric vehicle power-supply system and dc feeder are connected in parallel, and output and the electrical network of combining inverter are connected in parallel.The present invention has not only integrated original each station power source system, has also expanded new forms of energy power-supply system and charging electric vehicle power-supply system, makes integration power-supply system become a distributed energy management system with generating, power supply, energy storage, energy regenerative.When new forms of energy power-supply system energy is sufficient, the new forms of energy power-supply system provides energy to load and charges to battery system and charging electric vehicle power-supply system, if the new forms of energy power-supply system also has energy more than needed, then the combining inverter by control system with energy feedback to electrical network, when new forms of energy power-supply system energy shortage, be load supplying jointly by new forms of energy power-supply system and electrical network then and give battery system, the charging of charging electric vehicle power-supply system, when electric network fault or power failure, by the new forms of energy power-supply system, battery system, the charging electric vehicle power-supply system is load supplying jointly, but also can be by the expansion battery pack, form energy-storage system, energy is effectively flowed between each system, utilize, greatly improve energy utilization rate, reduced loss.
System intelligence is analyzed electric network state, new forms of energy power-supply system power supply state, ambient condition and battery system state, so select optimization the battery set charge/discharge algorithm, discharge and recharge parameter, battery is charged.Can be by " sharp Ping Gufeng " time period of artificial default electrical network, system preferentially carries out equilibrium activation charging in the low power consumption time period to battery system, improves the utilance of electrical network electric energy; Energy supply state in conjunction with three kinds of modes (the real-time analysis monitoring is according to historical data automatic learning, parameter preset) analysis new forms of energy power-supply system preferentially uses the new forms of energy power-supply system that battery system is charged; Real-Time Monitoring record ambient temperature draws the optimum time point of battery charging by study analysis, and charge parameter is carried out temperature-compensating; The battery pack state is carried out intellectual analysis, calculate capacity, the health status of current battery, optimize charge parameter.

Claims (7)

1. distributed integration power-supply system based on the IEC61850 agreement, it comprises control system, electrical network, battery system and load, electrical network is load supplying by control system and is the battery system charging, when electric network fault or power failure, be load supplying by battery system by control system, it is characterized in that: it also comprises new forms of energy power-supply system and charging electric vehicle power-supply system, new forms of energy power-supply system, charging electric vehicle power-supply system and electrical network and battery system access control system in parallel.
2. the distributed integration power-supply system based on the IEC61850 agreement according to claim 1, it is characterized in that: the new forms of energy power-supply system is load supplying, charges to battery system and charging electric vehicle power-supply system by control system, and the new forms of energy power-supply system will be had more than needed energy feedback to electrical network by the grid inverters of control system.
3. the distributed integration power-supply system based on the IEC61850 agreement according to claim 1 is characterized in that: new forms of energy power-supply system and electrical network jointly for load supplying, be battery system and electric automobile power supply system charging.
4. the distributed integration power-supply system based on the IEC61850 agreement according to claim 1 is characterized in that: when electric network fault or power failure, be load supplying jointly by new forms of energy power-supply system, battery system and charging electric vehicle power-supply system.
5. the distributed integration power-supply system based on the IEC61850 agreement according to claim 1, it is characterized in that: described control system comprises background devices, main monitoring, sub-monitoring, communication bus and monitoring unit, power module, described background devices is connected with main monitoring by the background communication bus, and described main monitoring, sub-monitoring, monitoring unit, power module all are connected on the same communication bus.
6. the distributed integration power-supply system based on the IEC61850 agreement according to claim 5, it is characterized in that: described son monitoring is DC power supply monitoring, AC power monitoring, communication power supply monitoring, inverter monitoring, and above-mentioned any a few seed monitoring are in parallel to be connected with communication bus.
7. it is characterized in that according to claim 5 or 6 described distributed integration power-supply systems based on the IEC61850 agreement: the built-in IEC61850 agreement of described main monitoring; Described each son monitoring enters for hot joining, and monitors redundancy backup with the master.
CN2012103781545A 2012-10-09 2012-10-09 Distributed integral power supply system based on protocol IEC 61850 Pending CN102916484A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103117596A (en) * 2013-03-15 2013-05-22 山东鲁能智能技术有限公司 Distributed direct-current power supply system for substation
CN103715758A (en) * 2013-12-20 2014-04-09 青岛海汇德电气有限公司 Monitor backupping method for improving reliability of integrated power supply system
CN104898481A (en) * 2015-05-05 2015-09-09 湘潭大学 Dynamic reconstruction method for parallel inverters
CN105958638A (en) * 2016-06-08 2016-09-21 上海南华兰陵电气有限公司 Distributed renewable energy intelligent station power supply system
CN106655488A (en) * 2016-09-29 2017-05-10 北京国电光宇机电设备有限公司 Energy-saving intelligent check-up all-online direct-current charging and discharging system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087069A (en) * 2002-05-22 2007-12-12 迈为电子技术（上海）有限公司 An intelligent distributed power supply system with plural distributed power unit
JP2011083085A (en) * 2009-10-05 2011-04-21 Panasonic Electric Works Co Ltd Electric power management system
CN202444293U (en) * 2012-02-28 2012-09-19 肖连生 Grid-connected photovoltaic uninterruptible power supply system with preferred power supply
CN202475026U (en) * 2012-02-04 2012-10-03 青岛海汇德电气有限公司 Infinitely extendable integrated power monitoring system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087069A (en) * 2002-05-22 2007-12-12 迈为电子技术（上海）有限公司 An intelligent distributed power supply system with plural distributed power unit
JP2011083085A (en) * 2009-10-05 2011-04-21 Panasonic Electric Works Co Ltd Electric power management system
CN202475026U (en) * 2012-02-04 2012-10-03 青岛海汇德电气有限公司 Infinitely extendable integrated power monitoring system
CN202444293U (en) * 2012-02-28 2012-09-19 肖连生 Grid-connected photovoltaic uninterruptible power supply system with preferred power supply

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103117596A (en) * 2013-03-15 2013-05-22 山东鲁能智能技术有限公司 Distributed direct-current power supply system for substation
CN103715758A (en) * 2013-12-20 2014-04-09 青岛海汇德电气有限公司 Monitor backupping method for improving reliability of integrated power supply system
CN104898481A (en) * 2015-05-05 2015-09-09 湘潭大学 Dynamic reconstruction method for parallel inverters
CN105958638A (en) * 2016-06-08 2016-09-21 上海南华兰陵电气有限公司 Distributed renewable energy intelligent station power supply system
CN106655488A (en) * 2016-09-29 2017-05-10 北京国电光宇机电设备有限公司 Energy-saving intelligent check-up all-online direct-current charging and discharging system

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Application publication date: 20130206