Huawei Utility Smart String ESS Solution
Huawei's new solar PV and energy storage solutions “Utility Smart String ESS Solution” meets global demand for low-carbon smart solutions. Huawei has launched its new smart photovoltaic (PV) and energy storage solutions at Intersolar Europe in 2022.
"With over 30 years of R&D experience, Huawei continues to deliver industry breakthroughs in core technologies such as artificial intelligence, cloud computing, and power electronics." Huawei offers optimal Levelized Cost of Electricity (LCOE), enhanced grid connection capabilities, and improved safety through continuous innovation in string design to address key industry challenges. The key technologies of its Smart PV Solution include:
Smart DC System (SDS)
Optimising tracking algorithm, the SDS technology increases power generation by 1.69% in a PV plant. Huawei cooperates with more than 10 brands of tracking solar panels to provide users with a better experience.
Smart I-V Curve Diagnosis 4.0
The technology identifies string faults, evaluates power loss, and recommends repair solutions, completing the full online inspection of a 100 MW power plant in 20 minutes. The diagnosis enhances operation and maintenance (O&M) while increasing power generation.
Smart String-Level Disconnector Technology (SSLD-TECH)
After two years of R&D efforts, Huawei developed the innovative SSLD-TECH, which minimises the safety hazards of direct current faults. Germany's TÜV SÜD, IEC 60947-2 ensure PV plant safety with proven effectiveness.
Grid Forming
The intelligent grid connection algorithm enables a PV system to be adapted to various grid scenarios, improving its voltage and power control capabilities. At a low short circuit ratio (SCR) of 1.2, it ensures that the inverter runs at full power without derating and successfully passes through high and low voltage continuously, delivering a 30% increase in new energy access.
Smart String ESS addresses capacity limitations
Smart String ESS addresses the limited capacity, short service life, complex O&M, and high safety risks of conventional solutions.
Drawing on more than 10 years of R&D experience in energy storage systems that integrates digital, power electronics, and energy storage technologies, Smart String ESS overcomes the limitations of lithium batteries and adopts pack-level optimization, rack-level optimisation, distributed cooling, and all-modular design, enabling the batteries' full charging and discharging potential and providing optimal LCOS for PV plants.
The system offers comprehensive safety with four layers of protection covering cell-level short circuit detection, pack-level safety shutdown, rack-level overcurrent protection and fault isolation, and system-level smart fire suppression.
The integrated solution enables a smart power consumption ecosystem, featuring a smart energy controller which connects a PV optimizer, an ESS, an EV charger, and a management system. This solution enhances PV self-consumption rate to 90% from 70% in the previous generation, bringing an all-around clean energy experience to homes with lower electricity costs, active safety, and intelligent assistant.