CN204992614U - Light stores up energy management experimental system - Google Patents
Light stores up energy management experimental system Download PDFInfo
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- CN204992614U CN204992614U CN201520740074.9U CN201520740074U CN204992614U CN 204992614 U CN204992614 U CN 204992614U CN 201520740074 U CN201520740074 U CN 201520740074U CN 204992614 U CN204992614 U CN 204992614U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model relates to a light stores up energy management experimental system, the simulation of photovoltaic analog power supply is at the weather of reality, photovoltaic cell's the fluctuation of exerting oneself under the temperature, one -way DCDC converter connects between photovoltaic analog power supply and dc -to -ac converter, one -way DCDC converter is boost circuit, rise to photovoltaic output voltage and be incorporated into the power networks, from net dc -to -ac converter inlet side allowed band, two -way DCDC converter one side is parallelly connected with one -way DCDC converter output generating line, opposite side and energy storage unit connection, two converters pass through change over switch and connect grid -connected inverter respectively and leave the net dc -to -ac converter, grid -connected inverter connects the commercial power, connect the load from the net dc -to -ac converter, control system gathers photovoltaic analog power supply, the load, energy storage battery's real -time data, each converter work of output control signal control behind the processing data. Net switchover operation is incorporated into the power networks, is left in control, realizes rationalizing the management to photovoltaic and energy storage system's energy. The quick response performance of improvement system, the extension energy memory life -span.
Description
Technical field
The utility model relates to a kind of photovoltaic energy storage system, particularly a kind of light energy storage capacity management misconduct system based on NILabVIEW data acquisition.
Background technology
At present, photovoltaic generation installed capacity constantly increases, and the impact of its output-power fluctuation on the electrical network quality of power supply and stable operation more and more receives publicity.Because the impact of photovoltaic generation power output by the factor such as intensity of illumination and ambient temperature alters a great deal, and photovoltaic is exerted oneself and can not be stored, and therefore to store electric energy when photovoltaic generating system is in from needing to add energy storage device during network operation and to regulate.
Light energy storage capacity management system adopts the operational factor of transducer to photovoltaic cell and energy-storage battery to detect usually, and in conjunction with software control system running status; Adopt central controller, unified management is carried out to the various running statuses of light-preserved system.But the monitoring of energy storage device and the response speed of service equipment and precision can not meet actual requirement in existing smooth energy storage capacity management system.Therefore, improve monitoring and the service equipment of energy storage device, formulate the system operating mode optimized, have important realistic meaning to the reliability service and quick response improving EMS.
Summary of the invention
The utility model is the problem that can not meet the demands for the monitoring of existing energy storage device and service equipment response speed and precision, propose a kind of light energy storage capacity management misconduct system, gather service data, control grid-connected, from net switchover operation, realize rationalizing management to the energy of photovoltaic and energy-storage system.
The technical solution of the utility model is: a kind of light energy storage capacity management misconduct system, comprise photovoltaic analog power, unidirectional DC/DC current transformer, two-way DC/DC current transformer, combining inverter and from net inverter, energy-storage units, control system, the simulation of photovoltaic analog power is at the weather of reality, at temperature, photovoltaic cell goes out fluctuation, unidirectional DC/DC current transformer is connected between photovoltaic analog power and inverter, unidirectional DC/DC current transformer is booster circuit, photovoltaic output voltage is risen to grid-connected, from net inverter input side allowed band, it is in parallel that two-way DC/DC current transformer side and unidirectional DC/DC current transformer export bus, opposite side is connected with energy-storage units, two current transformers connect combining inverter by diverter switch and respectively from net inverter, combining inverter connects civil power, load is connect from net inverter, control system gathers photovoltaic analog power, load, the real time data of energy-storage battery, export control signal after deal with data and control each current transformer work.
Described energy-storage units selects the lithium battery of series connection.
Select DAQ data collecting plate card image data in described control system, by PCI-6251 data/address bus, on-line monitoring is carried out to photovoltaic analog power, load, energy-storage battery.
The beneficial effects of the utility model are: the utility model light energy storage capacity management misconduct system, by analyzing the data that NIPCI two-way I/O interface board collects, the discharge and recharge from network operation and energy-storage units of photovoltaic generating system is controlled, management is optimized to system capacity, improves entire system operating efficiency and fail safe.Meanwhile, by applying the data flow of high accuracy NI controller and LabVIEW, improving the fast-response energy of system, extending the energy storage device life-span.
Accompanying drawing explanation
Fig. 1 is the utility model light energy storage capacity management misconduct system configuration schematic diagram;
Fig. 2 is the utility model Systematical control and communication structure schematic diagram.
Embodiment
Light energy storage capacity management misconduct system configuration schematic diagram as shown in Figure 1, wherein photovoltaic analog power simulation under the weather, temperature of reality photovoltaic cell go out fluctuation; System stored energy unit is energy-storage battery, selects lithium battery, can reduce energy storage device volume and improve system effectiveness; Unidirectional DC/DC current transformer is connected between photovoltaic analog power and inverter, unidirectional DC/DC current transformer is booster circuit, photovoltaic output voltage is risen to grid-connected, from net inverter input side allowed band, to photovoltaic output pulsation, there is certain flatness simultaneously, unidirectional DC/DC outlet side can access grid-connected by circuit breaker selectivity, from net inverter, realize system grid connection, from network operation; Two-way DC/DC current transformer can control the energy in bidirectional flow of DC bus side and lithium battery side, and it is in parallel that two-way DC/DC current transformer side and unidirectional DC/DC current transformer export bus, and opposite side is connected with the lithium battery group of series connection.Two current transformers connect combining inverter respectively by diverter switch and from net inverter, combining inverter connects civil power, connect load from net inverter.System is by switching the mode of operation of each current transformer, and the system that realizes is run under multiple state.
Control system gathers the real time data of photovoltaic analog power, load, energy-storage battery, exports control signal and control each current transformer work after deal with data.
Described photovoltaic analog power output voltage is DC40 ~ 48V; Lithium battery group rated voltage is DC51.2V, and total overcharged voltage is DC60.8V, and total overdischarge pressure is DC16.5V.
Described unidirectional DC/DC current transformer input voltage is DC40 ~ 48V, and output voltage is DC280 ~ 300V; The Boost pattern output voltage of two-way DC/DC is DC285 ~ 300V, Buck pattern output voltage is DC45 ~ 50V; Be DC300 ± 10V from net inverter input voltage, output voltage is AC210 ~ 230V, and rated power is 2kW; Combining inverter input voltage is DC300 ± 10V, and output voltage is AC220 ± 5V, and rated power is 2kW.
Described load is resistor load, and rated power is 600W, and rated voltage is DC300V.
Systematical control and communication structure schematic diagram as shown in Figure 2, EMS is by NIDAQ data collecting card and PCI-6251 data/address bus, photovoltaic analog power in experiment porch is exerted oneself, the parameter such as load power, energy-storage battery terminal voltage carries out on-line monitoring, switched by the mode of operation of LabVIEW program control system simultaneously, realize the high efficiency energy management of system.The DAQ data collecting plate card that this example provides can realize the dynamic real time data acquisition tasks of photovoltaic energy storage system.By calling, configuring bottom DAQmx, realize exerting oneself to the photovoltaic in light energy storage capacity management misconduct system, the monitoring of the parameter such as DC bus-bar voltage, energy-storage battery terminal voltage.
Described DAQ data collecting plate card is NI company M series board, with 16 PCI-6251 for bus, there are 16 road single-ended analog amount input channels, sample rate is 1.25MS/s, and 24 road bi-directional digital I/O passages, maximum clock rate 10MHz, exportable multi-channel digital amount, realizes the electrical control to each current transformer interface switch state.
LabVIEWPC control program realizes human-computer interaction interface, wherein data collecting card can realize exporting digital quantity and the collection to outside analog quantity, LabVIEW control program can realize process to external analog signal and analysis, produce corresponding digital quantity signal, for carrying out break-make control to the low-voltage relay of each node in outside, and relay is used for carrying out electrical isolation to primary cut-out, thus realize controlling photovoltaic energy storage system cloud gray model in each operating state.
Claims (3)
1. a light energy storage capacity management misconduct system, it is characterized in that, comprise photovoltaic analog power, unidirectional DC/DC current transformer, two-way DC/DC current transformer, combining inverter and from net inverter, energy-storage units, control system, the simulation of photovoltaic analog power is at the weather of reality, at temperature, photovoltaic cell goes out fluctuation, unidirectional DC/DC current transformer is connected between photovoltaic analog power and inverter, unidirectional DC/DC current transformer is booster circuit, photovoltaic output voltage is risen to grid-connected, from net inverter input side allowed band, it is in parallel that two-way DC/DC current transformer side and unidirectional DC/DC current transformer export bus, opposite side is connected with energy-storage units, two current transformers connect combining inverter by diverter switch and respectively from net inverter, combining inverter connects civil power, load is connect from net inverter, control system gathers photovoltaic analog power, load, the real time data of energy-storage battery, export control signal after deal with data and control each current transformer work.
2. light energy storage capacity management misconduct system according to claim 1, it is characterized in that, described energy-storage units selects the lithium battery of series connection.
3. light energy storage capacity management misconduct system according to claim 1, is characterized in that, select DAQ data collecting plate card image data in described control system, by PCI-6251 data/address bus, carry out on-line monitoring to photovoltaic analog power, load, energy-storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740074.9U CN204992614U (en) | 2015-09-23 | 2015-09-23 | Light stores up energy management experimental system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740074.9U CN204992614U (en) | 2015-09-23 | 2015-09-23 | Light stores up energy management experimental system |
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| Publication Number | Publication Date |
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| CN204992614U true CN204992614U (en) | 2016-01-20 |
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| CN201520740074.9U Expired - Fee Related CN204992614U (en) | 2015-09-23 | 2015-09-23 | Light stores up energy management experimental system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515053A (en) * | 2016-01-29 | 2016-04-20 | 山东鲁能智能技术有限公司 | Photovoltaic generation and energy storage integrated system based on battery echelon utilization and intelligent terminal communication |
| CN106159994A (en) * | 2016-07-01 | 2016-11-23 | 许昌学院 | A kind of battery energy storage system experiment porch applying renewable energy power generation |
| CN106786702A (en) * | 2017-01-19 | 2017-05-31 | 上海电力学院 | Full range modeling for mixed energy storage system predicts energy dispatching method |
| CN109167377A (en) * | 2018-10-09 | 2019-01-08 | 上海博阳新能源科技股份有限公司 | Electric charging station system is stored up using the light of battery based on echelon |
| CN111464113A (en) * | 2020-04-20 | 2020-07-28 | 江苏镇安电力设备有限公司 | Modular small-sized optical storage micro-grid device and control system |
| CN111466064A (en) * | 2017-10-12 | 2020-07-28 | 通用电气公司 | Temperature control of an energy storage system |
| CN112467966A (en) * | 2020-11-18 | 2021-03-09 | 江苏为恒智能科技有限公司 | Over-temperature load reduction device and method of light storage integrated inverter |
| CN115719964A (en) * | 2022-09-06 | 2023-02-28 | 新至储能科技(浙江)有限公司 | Energy storage battery automatic charging and discharging system and method based on load tracking |
-
2015
- 2015-09-23 CN CN201520740074.9U patent/CN204992614U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515053A (en) * | 2016-01-29 | 2016-04-20 | 山东鲁能智能技术有限公司 | Photovoltaic generation and energy storage integrated system based on battery echelon utilization and intelligent terminal communication |
| CN106159994A (en) * | 2016-07-01 | 2016-11-23 | 许昌学院 | A kind of battery energy storage system experiment porch applying renewable energy power generation |
| CN106786702A (en) * | 2017-01-19 | 2017-05-31 | 上海电力学院 | Full range modeling for mixed energy storage system predicts energy dispatching method |
| CN106786702B (en) * | 2017-01-19 | 2019-10-18 | 上海电力学院 | Full range modeling for mixed energy storage system predicts energy dispatching method |
| CN111466064A (en) * | 2017-10-12 | 2020-07-28 | 通用电气公司 | Temperature control of an energy storage system |
| US11848425B2 (en) | 2017-10-12 | 2023-12-19 | General Electric Company | Temperature control for energy storage system |
| CN109167377A (en) * | 2018-10-09 | 2019-01-08 | 上海博阳新能源科技股份有限公司 | Electric charging station system is stored up using the light of battery based on echelon |
| CN111464113A (en) * | 2020-04-20 | 2020-07-28 | 江苏镇安电力设备有限公司 | Modular small-sized optical storage micro-grid device and control system |
| CN112467966A (en) * | 2020-11-18 | 2021-03-09 | 江苏为恒智能科技有限公司 | Over-temperature load reduction device and method of light storage integrated inverter |
| CN112467966B (en) * | 2020-11-18 | 2022-05-06 | 江苏为恒智能科技有限公司 | Over-temperature load reduction device and method of light storage integrated inverter |
| CN115719964A (en) * | 2022-09-06 | 2023-02-28 | 新至储能科技(浙江)有限公司 | Energy storage battery automatic charging and discharging system and method based on load tracking |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190923 |