CN103257299A - Microgrid technical verification platform device based on hybrid energy storage - Google Patents
Microgrid technical verification platform device based on hybrid energy storage Download PDFInfo
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- CN103257299A CN103257299A CN2013101852926A CN201310185292A CN103257299A CN 103257299 A CN103257299 A CN 103257299A CN 2013101852926 A CN2013101852926 A CN 2013101852926A CN 201310185292 A CN201310185292 A CN 201310185292A CN 103257299 A CN103257299 A CN 103257299A
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Abstract
A microgrid technical verification platform device based on hybrid energy storage comprises a hybrid energy storage device, a stored energy management system, a converter device, a distributed power supply device, a load, a data acquisition system, a microgrid energy management system and a grid-connected access system. The microgrid technical verification platform device based on hybrid energy storage is characterized in that the data acquisition system is respectively connected with the microgrid energy management system, the distributed power supply device, the load and the converter device, the microgrid energy management system is connected with the grid-connected access system, the converter device and the stored energy management system are both connected with the hybrid energy storage device, the hybrid energy storage device is composed of a lithium battery and a super-capacitor, the distributed power supply device comprises a wind power generation device and a photovoltaic power generation device, and the data acquisition system comprises an electrical capacity acquisition device, a communication device and a data storage device. According to the microgrid technical verification platform device based on the hybrid energy storage, evaluation and verification of operation, control and protection technologies by applying the microgrid are achieved, the platform is thorough in function and can meet the actual requirement of simulation experiment and technical identification of the microgrid.
Description
Technical field
The present invention relates to electric system distribution technique field, relate in particular to a kind of little electric power network technique verification platform device based on hybrid energy-storing.
Background technology
Little electrical network is that (Distributed Generation, DG) the miniature power network formed of system, accumulator system and load can be selected as required to be incorporated into the power networks with power distribution network and also can select independent operating by distributed power generation.Under normal mode of operation, little electrical network and public system parallel running can make little electrical network be equivalent to a constant duty of power distribution network by rational control; And do not reach when requiring when the existing fault of public system or the quality of power supply, little electrical network can cut off and being connected of external electrical network by spacer assembly, thus the realization isolated operation.
In little electrical network, energy storage device is important element.In order to keep the instantaneous energy balance of microgrid inside, energy storage often needs to absorb continually or send more high-power, high-power discharging and recharging the serviceable life that can have a strong impact on energy-storage battery with deep discharge frequently, hybrid energy-storing then can be optimized the charge and discharge process of battery, reduce discharging and recharging the partial circulating number of times, prolong the serviceable life of energy-storage battery.
Structure contains the little electric power network technique verification platform that mixes energy storage; technology such as the operation of little electrical network, control, protection, communication are verified; for the good technical deposit is established in the operation of the reliability of little electrical network, the transition to intelligent grid has important practical significance to extensive and traditional electrical network of distributed power source.
Summary of the invention
The object of the present invention is to provide a kind of little electric power network technique verification platform device based on hybrid energy-storing, it has the advantage of controlling convenient, flexible and long service life.
The present invention is achieved like this, it comprises hybrid accumulator, energy storage management system, converter plant, distributed power source device, load, data acquisition system (DAS), microgrid energy management system and the connecting system that is incorporated into the power networks, it is characterized in that data acquisition system (DAS) links to each other with converter plant with microgrid energy management system, distributed power source device, load respectively, the microgrid energy management system links to each other with the connecting system that is incorporated into the power networks, and converter plant all links to each other with hybrid accumulator with the energy storage management system; Described hybrid accumulator is made up of lithium battery and super capacitor; Described distributed power source device comprises wind power generation plant and photovoltaic power generation apparatus; Described data acquisition system (DAS) comprises electric parameters harvester, communicator and data storage device; The energy storage management system is monitored energy-storage battery and super capacitor ruuning situation, and takes all factors into consideration the self-characteristic of electrical network characteristic and lithium battery and super-capacitor device, optimizes charging and discharge coordination control strategy; Converter device comprises charge function and discharging function, during charging alternating voltage is converted to DC voltage, and the DC voltage that during discharge energy storage device is produced is converted to alternating voltage; Possess meritorious, Reactive Power Control and regulatory function; Can monitor electric parameters such as the electric current in each loop of alternating current-direct current and voltages simultaneously.
The present invention is based on little electric power network technique verification platform of hybrid energy-storing, data acquisition system (DAS) can be gathered electrical data such as the electric current, voltage, active power, reactive power of energy storage device, distributed power source and load.The microgrid energy management system is carried out the meritorious and idle coordination control of integral body to distributed power source, energy storage and load, dissimilar loads are carried out switching, keep microgrid system voltage and frequency stabilization, possess the level and smooth and peak load shifting of power when being incorporated into the power networks, microgrid and switch and coordinate to control from power-balance off the net from net.
Little electric power network technique verification platform of hybrid energy-storing of the present invention, its connecting system that is incorporated into the power networks is made up of the microgrid controller, possesses isolated island monitoring, auto-parallel and protection observing and controlling function, and the running status of little electrical network is passed to data acquisition system (DAS).
Technique effect of the present invention is: hybrid energy-storing of the present invention can take full advantage of the advantage that the ultracapacitor power density is high and have extended cycle life, in satisfying the microgrid operational process in the energy storage demand, can realize the flexible control to accumulator cell charging and discharging, optimize the course of work of accumulator, reduce the charge and discharge cycles number of times, increase the service life, improve the Technological Economy that energy storage device is applied to microgrid; The little electric power network technique verification platform that the present invention is based on hybrid energy-storing can realize using operation, the control of little electrical network, evaluation and the checking of resist technology, the actual requirement that platform feature is perfect, reasonable in design, can satisfy little grid simulation experiment and technical identification.
Description of drawings
Fig. 1 is block diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention is achieved like this, it comprises hybrid accumulator, energy storage management system, converter plant, distributed power source device, load, data acquisition system (DAS), microgrid energy management system and the connecting system that is incorporated into the power networks, it is characterized in that data acquisition system (DAS) links to each other with converter plant with microgrid energy management system, distributed power source device, load respectively, the microgrid energy management system links to each other with the connecting system that is incorporated into the power networks, and converter plant all links to each other with hybrid accumulator with the energy storage management system; Described hybrid accumulator is made up of lithium battery and super capacitor; Described distributed power source device comprises wind power generation plant and photovoltaic power generation apparatus; Described data acquisition system (DAS) comprises electric parameters harvester, communicator and data storage device.
Little electric power network technique verification platform of hybrid energy-storing of the present invention, its hybrid accumulator is made up of lithium battery and super capacitor; The energy storage management system is monitored energy-storage battery and super capacitor ruuning situation, and takes all factors into consideration the self-characteristic of electrical network characteristic and lithium battery and super-capacitor device, optimizes charging and discharge coordination control strategy; Converter device comprises charge function and discharging function, during charging alternating voltage is converted to DC voltage, and the DC voltage that during discharge energy storage device is produced is converted to alternating voltage; Possess meritorious, Reactive Power Control and regulatory function; Can monitor electric parameters such as the electric current in each loop of alternating current-direct current and voltages simultaneously.
The present invention is based on little electric power network technique verification platform of hybrid energy-storing, its distributed power source device comprises wind electricity generating system and photovoltaic power generation apparatus.Data acquisition system (DAS) can be gathered electrical data such as the electric current, voltage, active power, reactive power of energy storage device, distributed power source and load.The microgrid energy management system is carried out the meritorious and idle coordination control of integral body to distributed power source, energy storage and load, dissimilar loads are carried out switching, keep microgrid system voltage and frequency stabilization, possess the level and smooth and peak load shifting of power when being incorporated into the power networks, microgrid and switch and coordinate to control from power-balance off the net from net; Little electric power network technique verification platform of hybrid energy-storing, its connecting system that is incorporated into the power networks is made up of the microgrid controller, possesses isolated island monitoring, auto-parallel and protection observing and controlling function, and the running status of little electrical network is passed to data acquisition system (DAS).
Claims (4)
1. little electric power network technique verification platform device based on hybrid energy-storing, it comprises hybrid accumulator, energy storage management system, converter plant, distributed power source device, load, data acquisition system (DAS), microgrid energy management system and the connecting system that is incorporated into the power networks, it is characterized in that data acquisition system (DAS) links to each other with converter plant with microgrid energy management system, distributed power source device, load respectively, the microgrid energy management system links to each other with the connecting system that is incorporated into the power networks, and converter plant all links to each other with hybrid accumulator with the energy storage management system.
2. a kind of little electric power network technique verification platform device based on hybrid energy-storing as claimed in claim 1 is characterized in that described hybrid accumulator is made up of lithium battery and super capacitor.
3. a kind of little electric power network technique verification platform device based on hybrid energy-storing as claimed in claim 1 is characterized in that described distributed power source device comprises wind power generation plant and photovoltaic power generation apparatus.
4. a kind of little electric power network technique verification platform device based on hybrid energy-storing as claimed in claim 1 is characterized in that described data acquisition system (DAS) comprises electric parameters harvester, communicator and data storage device.
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| CN104198946A (en) * | 2014-08-27 | 2014-12-10 | 江苏科技大学 | Auxiliary hybrid battery capacity detecting system and method of wind power variable pitch system |
| CN110597168A (en) * | 2019-09-05 | 2019-12-20 | 北京双登慧峰聚能科技有限公司 | Development and test method and development and test system for microgrid energy management algorithm |
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Application publication date: 20130821 |