Lan Wei

Title: Innovations of Lan Wei in Power Systems

Introduction

Lan Wei is a prominent inventor based in Shanghai, China, known for his contributions to power systems technology. He holds a total of five patents, showcasing his innovative approach to electrical engineering and control methods.

Latest Patents

One of Lan Wei's latest patents is the "Hybrid compensation system and control method thereof." This invention involves a hybrid compensation system that is electrically connected between a power grid and a load. The system comprises an active filter, a passive filter, and a control unit. The active filter generates an output current and includes a switching circuit, a DC bus capacitor, and a filtering inductor. The control unit features a voltage controller, a first reactive current detector, a harmonic current compensator, a current loop controller, and a modulator. The voltage controller generates a first current given signal based on the bus voltage of the DC bus capacitor and a reference voltage. The first reactive current detector produces a second current given signal, while the harmonic current compensator generates a third current given signal. The current loop controller creates a control signal, and the modulator generates a driving signal according to this control signal.

Another significant patent is the "Control method of multilevel converter and the multilevel converter." This method involves classifying power modules that either start working, need to update an output state, or stop working, forming multiple power module groups. It controls the power modules within the same group to operate simultaneously, updating their output state or stopping according to a preset time interval. The number of power modules in each group is limited to ensure that the change in output level remains within a preset voltage value.

Career Highlights

Lan Wei is currently employed at Delta Electronics (Shanghai) Co., Ltd., where he continues to develop innovative solutions in the field of power systems. His work has significantly impacted the efficiency and reliability of electrical systems.

Collaborations

Lan Wei collaborates with notable colleagues, including Jianfei Zheng and Jianping Ying, who contribute to his projects and innovations.

Conclusion

Lan Wei's contributions to power systems through his patents and work at Delta Electronics highlight his role as a leading inventor in the field. His innovative solutions continue to advance technology in electrical engineering.