According to data from Qichacha, TBEA (600089) has recently obtained a utility model patent authorization, titled "A Power Electronic Hybrid Distribution Transformer", with patent application number CN202321862918.8 and authorization date of April 19, 2024.

Patent Abstract: This utility model provides a power electronic hybrid distribution transformer, comprising a distribution transformer and a power electronic energy conversion device. The distribution transformer comprises an auxiliary winding; The power electronic energy conversion equipment includes a first converter, which is connected to an auxiliary winding. Therefore, with the help of the connection between the auxiliary winding and the first converter, the connection between the distribution transformer and the power electronic energy conversion equipment can be achieved, and the advantages of the power electronic energy conversion equipment and traditional distribution transformers can be integrated to achieve complementary advantages in cost and function. Specifically, leveraging the efficient and low-cost advantages of traditional distribution transformers to achieve energy transmission in the power grid, while relying on power electronic energy conversion equipment to control voltage, active and reactive power, filter out harmonics, balance load currents, and provide more stable and reliable electricity for the load, ensuring good power quality in the power grid.

Since the beginning of this year, TBEA has obtained 8 new patent authorizations, a decrease of 55.56% compared to the same period last year. Based on the financial data of the company's 2023 annual report, the company invested 1.284 billion yuan in research and development in 2023, a year-on-year decrease of 2.13%.