TEBA Electric has applied for a patent for a hybrid photovoltaic-storage grid-connected inverter and power system, aiming to reduce construction costs and enhance operational efficiency in power systems. According to information from the National Intellectual Property Administration, TEBA Electric’s subsidiary, Hengyang Transformer Co., Ltd., submitted the patent application titled “Hybrid Photovoltaic-Storage Grid-Connected Inverter and Power System” on March 2025, with publication number CN119965939A.
The patent abstract reveals that the application discloses a hybrid photovoltaic-storage grid-connected inverter, which involves technology in the power system field. The inverter comprises a primary circuit, a transformer unit, a secondary circuit, and an inverter unit that are connected sequentially. The primary circuit and the secondary circuit are derived from an integrated design using an interleaved parallel bidirectional Buck-Boost circuit and dual active bridges. Additionally, the inverter features three ports: the first port connects to an energy storage unit through a bidirectional Buck-Boost circuit, while the second port connects to a photovoltaic unit via a dual active bridge, and the third port connects to the grid through the inverter unit. This innovative design aims to reduce construction costs and improve the efficiency of power systems.
According to data from Tianyancha, Hengyang Transformer Co., Ltd. was established in 2001 and is located in Hengyang City. It primarily engages in the manufacturing of electrical machinery and equipment and has a registered capital of approximately 1.56 billion RMB. The company has invested in 21 enterprises and participated in 3,184 bidding projects. Furthermore, it holds 424 patents and 8 trademarks, along with 59 administrative licenses.
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