CN218678460U - Off-grid energy storage system based on wind storage hydrogen production - Google Patents
Off-grid energy storage system based on wind storage hydrogen production Download PDFInfo
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- CN218678460U CN218678460U CN202223184722.6U CN202223184722U CN218678460U CN 218678460 U CN218678460 U CN 218678460U CN 202223184722 U CN202223184722 U CN 202223184722U CN 218678460 U CN218678460 U CN 218678460U
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses an off-grid energy storage system based on wind storage hydrogen production, which comprises a container, wherein a plurality of groups of energy storage devices are arranged in the container, and each group of energy storage devices comprises a 500kWh battery pack, an energy storage converter and an alternating current control cabinet; the 500kWh battery pack, the energy storage converter and the alternating current control cabinet are sequentially connected, and the wind turbine generator, the energy management system and the multiple groups of hydrogen production equipment are respectively connected with the alternating current control cabinet. The utility model has high system integration level, can be expanded in large scale, and is easy for system expansion and unified control; the battery is constructed in a modular way and can be used in a plug-and-play way; intelligent monitoring and early warning are realized, real-time online is realized, and safety and reliability are realized; the bidirectional rectification and inversion characteristics are realized; directly starting the island to enter off-grid operation; and the power grid is completely disconnected with the power grid, and the black start function is realized.
Description
Technical Field
The utility model relates to an off-grid energy storage system based on wind stores up hydrogen manufacturing.
Background
The existing hydrogen production equipment adopts an off-grid operation of a wind turbine generator set to provide a power supply for the hydrogen production equipment, and because wind power has the characteristics of volatility and intermittency naturally, the power changes in real time, and the power balance of the wind turbine generator set for power generation and the hydrogen production equipment (load) can not be achieved under the off-grid state.
Disclosure of Invention
In order to solve the technical problem, the utility model provides an off-grid energy storage system based on hydrogen is stored up to wind.
The technical scheme of the utility model is that: an off-grid energy storage system based on wind storage hydrogen production comprises a container, wherein a plurality of groups of energy storage devices are arranged in the container, and each group of energy storage device comprises a 500kWh battery pack, an energy storage converter and an alternating current control cabinet; the 500kWh battery pack, the energy storage converter and the alternating current control cabinet are sequentially connected, and the wind turbine generator, the energy management system and the multiple groups of hydrogen production equipment are respectively connected with the alternating current control cabinet.
Further, the energy storage converter comprises a transformer, a rectifier and an inverter.
Furthermore, the energy management system collects hydrogen production load data, the SOC of the battery, the real-time output power and the predicted power of the wind power converter, and adjusts the output power of the wind power converter and the charging and discharging of the energy storage PCS in real time.
Furthermore, the battery pack comprises a battery management system which is responsible for collecting the state information of the voltage, the current and the temperature of the battery pack.
The utility model has the advantages that: the utility model discloses an energy management system gathers hydrogen manufacturing load data, battery SOC, the real-time output power of wind-powered electricity generation converter, adjusts the output and the energy storage PCS charge-discharge of wind-powered electricity generation converter in real time, can realize fan, energy storage, hydrogen manufacturing equipment room power balance, ensures the steady operation of system. When the wind power generation is stopped, the energy management system controls the stored energy to continuously supply power for the hydrogen production equipment for 2 hours; meanwhile, the stored energy provides a starting power supply for the wind generating set.
Drawings
Fig. 1 is an electrical topology diagram of the present invention.
Fig. 2 is the main electrical schematic diagram of the off-grid energy storage system of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model discloses a system of leaving the net based on one 3.4MW wind generating set, 200kW hydrogen manufacturing equipment, 500kWh energy storage equipment constitute, system voltage AC690V. Hydrogen production load data, battery SOC and real-time output power of the wind power converter are collected through an energy management system EMS, the output power of the wind power converter and charging and discharging of an energy storage PCS are adjusted in real time, power balance among a fan, energy storage and hydrogen production equipment is achieved, and stable operation of the system is guaranteed. When the wind power generation is stopped, the EMS controls the stored energy to continuously supply power for the hydrogen production equipment for 2 hours; meanwhile, the stored energy provides a starting power supply for the wind generating set.
As shown in fig. 2, the energy storage system mainly includes a container, a battery and a battery management system, an energy storage converter, a transformer, a control cabinet (an internal energy management system EMS), and a fire protection system. The total voltage of the battery system is DC665.6V, the total energy is 521.8kWh, the direct current is output to the energy storage converter, is converted into the alternating current AC400V through the DC/AC, is boosted by the transformer and is connected with the AC690V bus. The energy storage converter has the characteristics of rectification and inversion (bidirectional), and the battery is charged and discharged under the control of the energy management system EMS, so that the power balance of the system is realized.
Container: the 20-foot energy storage special container has good waterproof, shockproof, fireproof and heat-insulating properties, and the container is arranged into a battery compartment and an electrical appliance compartment at intervals.
A battery: the system is arranged in a battery cabin, the battery system is formed by connecting 2 sets of 260.9kWh battery subsystems in parallel, the total voltage is 665.6V, the total energy is 521.8kWh, the direct current of the battery subsystems is output to an energy storage converter, and then the direct current is connected to a 690V bus through a transformer.
A battery management system: and a three-level architecture management mode is adopted and is responsible for collecting state information such as voltage, current and temperature of the battery pack, diagnosing the capacity SOC, predicting the SOH of the battery health condition, monitoring the battery balance and the like, and meanwhile, various running states and various alarm information are sent to a remote energy management system, the system is dispatched, and the high-quality and reliable running of the system is realized.
Energy management system (EMS for short): the energy dispatching and management center of the energy storage system controls the whole energy storage system to operate orderly and steadily by acquiring, processing and analyzing data.
An energy storage converter: has the characteristics of rectification and inversion (bidirectional); the high/low voltage ride through is supported, the 100% three-phase unbalance loading capacity is realized, and the impact load resistance is strong; directly starting an island to enter an off-grid operation mode through system self-checking; has a black start function.
Claims (5)
1. An off-grid energy storage system based on wind storage hydrogen production is characterized by comprising a container, wherein a plurality of groups of energy storage devices are arranged in the container, and each group of energy storage devices comprises a 500kWh battery pack, an energy storage converter and an alternating current control cabinet; the 500kWh battery pack, the energy storage converter and the alternating current control cabinet are sequentially connected, and the wind turbine generator, the energy management system and the multiple groups of hydrogen production equipment are respectively connected with the alternating current control cabinet.
2. The off-grid energy storage system for producing hydrogen based on wind storage according to claim 1, wherein the energy storage converter comprises a transformer, a rectifier and an inverter.
3. The off-grid energy storage system for producing hydrogen based on wind storage according to claim 1, wherein the energy management system collects hydrogen production load data, battery SOC, real-time output power and predicted power of the wind power converter, and real-time adjustment of output power of the wind power converter and energy storage PCS charging and discharging.
4. The off-grid energy storage system for producing hydrogen based on wind storage according to claim 1, wherein the battery pack comprises a battery management system responsible for collecting state information of voltage, current and temperature of the battery pack.
5. The off-grid energy storage system for producing hydrogen based on wind storage according to claim 1, wherein the ac control cabinet comprises an energy management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223184722.6U CN218678460U (en) | 2022-11-30 | 2022-11-30 | Off-grid energy storage system based on wind storage hydrogen production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202223184722.6U CN218678460U (en) | 2022-11-30 | 2022-11-30 | Off-grid energy storage system based on wind storage hydrogen production |
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| CN218678460U true CN218678460U (en) | 2023-03-21 |
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| CN202223184722.6U Active CN218678460U (en) | 2022-11-30 | 2022-11-30 | Off-grid energy storage system based on wind storage hydrogen production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865297A (en) * | 2023-07-05 | 2023-10-10 | 北京雷动智创科技有限公司 | Off-grid power self-balancing hydrogen production system and control method |
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2022
- 2022-11-30 CN CN202223184722.6U patent/CN218678460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865297A (en) * | 2023-07-05 | 2023-10-10 | 北京雷动智创科技有限公司 | Off-grid power self-balancing hydrogen production system and control method |
| CN116865297B (en) * | 2023-07-05 | 2024-05-24 | 北京雷动智创科技有限公司 | Off-grid power self-balancing hydrogen production system and control method |
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