Na Ni

Title: Na Ni: Innovator in Ceramic and Wind Turbine Technologies

Introduction

Na Ni is a prominent inventor based in Shanghai, China, known for his contributions to advanced materials and renewable energy technologies. With a total of two patents to his name, he has made significant strides in the fields of ceramic composites and wind turbine control systems.

Latest Patents

One of Na Ni's latest patents is a method for the preparation of dense HfC(Si)—HfB composite ceramic. This innovative method involves mixing hafnium oxide powders, nano-sized carbon black, and silicon hexaboride powders in specific molar ratios to create a powder mixture. The mixture undergoes ball milling, drying, and is then transferred to a graphite mold for spark plasma sintering. This process allows for an in-situ carbon-boron reduction reaction and sintering densification to occur simultaneously, resulting in a composite ceramic with a density of 94.0%-100% and uniformly dispersed grains.

Another notable patent is a control system and method for mitigating rotor imbalance on a wind turbine. This system includes multiple blades and Micro Inertial Measurement Units (MIMUs) that sense parameter signals of the blades. The control system features a blade bending moment calculation unit, a blade bending moment error signal calculation unit, and a pitch angle compensation command calculation unit. These components work together to calculate and adjust the pitch angles of the blades, enhancing the efficiency and stability of wind turbine operations.

Career Highlights

Na Ni has worked with esteemed organizations such as General Electric Company and Shanghai Jiaotong University. His experience in these institutions has allowed him to develop and refine his innovative ideas, contributing to advancements in technology and engineering.

Collaborations

Na Ni has collaborated with notable colleagues, including Xu Fu and Qiang Li, who have played significant roles in his research and development efforts.

Conclusion

Na Ni's work exemplifies the intersection of innovation and practical application in technology. His patents reflect a commitment to advancing materials science and renewable energy solutions. Through his career, he continues to inspire future generations of inventors and engineers.