中文版
ENGLISH
| The first new energy of star energy storage enterprises: intelligent household e |
| Release time:2023-02-01 10:40:24| Viewed： |
The first new energy of star energy storage enterprises: intelligent household energy storage system
Capital Airlines New Energy has been deeply engaged in the core technology of power electronics for many years, focusing on the research and product development of key technologies in the field of optical storage, continuously expanding energy storage inverters and battery products, independently developing and producing BMS, intelligent lithium batteries, remote monitoring and hybrid energy storage systems, and providing customers with "one-stop" household energy storage system solutions.
Aiming at the problems exposed in the current household energy storage industry, Capital Airlines New Energy has deeply integrated the energy storage battery and power electronics technology, and launched the intelligent household energy storage system solution.
The intelligent household energy storage system adopts key technologies such as independent balancing management, modularization and integrated design among battery packs to enhance the balancing ability between energy storage battery packs, improve the available capacity of the system, and improve the battery cycle life. At the same time, it is optimized in terms of installation and operation and maintenance to improve the reliability and flexibility of the system.
The intelligent lithium battery module is mainly composed of low-voltage battery module, battery management unit (BMU) and power control unit (PCU). The battery module can adjust its output voltage and current independently through PCU according to the battery state of charge, so as to realize the automatic balance of the capacity between the battery modules.
In the parallel system of multiple intelligent lithium battery modules, if one of the modules fails, the group of batteries can be automatically isolated without affecting the normal operation of other batteries in the same bus.
The intelligent lithium battery module has the capacity calibration function of a single group. The system can set the calibration strategy remotely according to the actual situation, so that one of the battery modules can complete a single charge and discharge to achieve accurate calibration of the battery capacity.
Other batteries on the same bus are neither charged nor discharged, and are in the "emergency" state at any time to prevent the sudden absence of mains power during the process and ensure the reliability of the system power supply.
The intelligent household energy storage system solution adopts a fully modular design, which can be stacked in blocks; Highly integrated with energy storage lithium battery and hybrid inverter, it can monitor and collect photovoltaic, lithium battery, mains power and load in real time;
Intelligent energy management strategy is adopted to automatically control the direction of power flow and realize the optimal allocation of system energy; In addition, it can quickly respond to the demand of system battery charge and discharge conversion, and its conversion time can be ≤ 100ms.
The intelligent household energy storage system solution adopts a fully modular design, which can be stacked in blocks; Highly integrated with energy storage lithium battery and hybrid inverter, it can monitor and collect photovoltaic, lithium battery, mains power and load in real time;
Intelligent energy management strategy is adopted to automatically control the direction of power flow and realize the optimal allocation of system energy; In addition, it can quickly respond to the demand of system battery charge and discharge conversion, and its conversion time can be ≤ 100ms.
Customer value of intelligent household energy storage system solution
Intelligent: built-in PCU to improve the capacity mismatch of battery pack
In actual production and application, there are certain differences in the internal resistance of the cells, and the uneven current between parallel battery packs will lead to capacity mismatch after long-term use. Intelligent household energy storage system solution The battery pack has a built-in PCU, which can adjust the voltage/current of the intelligent lithium battery according to the state of charge of the battery, ensure that all batteries on the same bus are fully charged/discharged at the same time, improve the capacity mismatch of the battery pack, and make full use of the system capacity.
Fully modular design: more convenient transportation and installation
The intelligent household energy storage system solution adopts a fully modular and lightweight design, which makes transportation/handling more convenient and requires no special tools; There is no need to reserve space for later expansion, which can be directly stacked and installed on the original module, and can be flexibly configured;
Standardized accessories and quick-plug connectors are adopted, and the installation of the whole system (inverter and three battery modules) can be completed by two people in 30 minutes without on-site wiring and simple operations such as wiring and fixing.
Minimal operation and maintenance: the battery module is directly replaced without treatment
The output voltage/current of the intelligent battery module is controlled independently. Under normal operation conditions, automatic balancing and remote nuclear capacity testing can be realized between the battery modules, without on-site maintenance and low operation and maintenance costs; At the same time, it has the function of remote system upgrade and real-time monitoring to realize online operation and maintenance.
The intelligent household energy storage system solution supports the mixing of new and old batteries. When the battery module is abnormal, the battery module will automatically exit the operation and can be replaced directly with a new battery to realize plug and play and quickly respond to customer needs.
The system can be expanded by stages: better investment income
The intelligent household energy storage system solution has a built-in PCU battery, which has the balancing function between modules, and supports the mixing of new and old batteries. Users can flexibly configure and choose to expand capacity by stages. That is, at the initial stage of station construction, you can choose to configure some batteries, and then expand the system capacity as required to reduce the initial investment cost;
In addition, the system does not need to consider over-configuration at the initial stage of station construction. When the battery capacity decay can not meet the demand, new batteries can be added at any time to expand the capacity, and the user's investment income is better.
Full scenario solution: integrated design of system photovoltaic, energy storage and off-grid connection
The intelligent household energy storage system solution adopts the design concept of Allinone, which highly integrates intelligent lithium battery and energy storage inverter. Photovoltaic and energy storage lithium batteries adopt DC coupling mode, with short energy flow link and higher system efficiency;
The inverter is equipped with EPS output port, which can achieve seamless switching without external configuration of switching unit; The system has the advantages of small number of equipment, small floor space, exquisite appearance, and full scene applicability.
Safe and reliable: electrical and physical isolation, personnel and equipment are safer
The safety of the household energy storage system has generally received special attention from users. Shouhang New Energy adheres to the concept of safety first, and the intelligent household energy storage system scheme has taken full consideration of electrical safety, failure protection and use safety.
In terms of electrical safety, lithium iron phosphate battery core with olive crystal structure is selected, which is more stable and safe; The battery module port adopts a fully isolated interface, which can prevent the battery from being damaged by power grid impact;
In terms of structural design, the PCU adopts a vehicle-level structure and is managed separately from the battery module to realize the separation of physical space and ensure that the battery module is not affected by the failure of other electrical components. This design can prevent the system from being affected by other battery module failures, such as battery leakage and insulation failure.
During the transportation, installation, operation and maintenance of the battery module, the battery pack is in a dormant state, the PCU does not work, and the electrical port of the module has zero voltage, effectively ensuring the personal safety of the operators.
Using FPC (Flexible Printed Circuit) technology, each sampling line has a fuse string, which can effectively avoid the potential safety hazard caused by the short circuit of the sampling line; Realize the multi-level and all-round monitoring of the core, module and system, and truly realize the "core" service; The safety and reliability of the battery are guaranteed layer by layer by adopting measures such as core level health pre-diagnosis, multi-level early warning and protection functions.
|
