Leming Zhou

Title: Leming Zhou and Innovations in Microgrid Control

Introduction

Leming Zhou is an inventor based in Guangdong, China, whose work focuses on control technologies for independent and island microgrids. His listed inventions address system stability, synchronization, and the integration of energy storage with power generation. Zhou is associated with Guangdong Zhicheng Champion Group Co., Ltd. and has 2 patents in the provided information.

Latest Patents

Zhou’s listed patents include “Island Microgrid System, and Interactive Oscillation Suppression Method and System Therefor.” The invention combines source-side and load-side virtual synchronous machines to provide virtual inertia and damping. It describes d-axis inductive-current feedforward and d-axis voltage-feedback controls to reshape virtual synchronous generator impedances and reduce low-frequency interactions. The approach is intended to suppress oscillations in alternating-current island microgrids composed of multiple source-load virtual synchronous machines.

His other listed patent is “Diesel-Storage Independent Microgrid and Virtual Dynamic Synchronous Control Method and System Therefor.” This invention introduces adaptive dynamic synchronous torque and pre-synchronization phase-angle compensation into an energy-storage converter’s control system. The compensation helps align the phase angles of a diesel generator and energy-storage converter before they are connected in parallel, reducing current impact during connection. Afterward, adaptive torque adjustment supports synchronization based on the units’ current accelerations, even when the diesel engine’s inertia parameter is treated as a black box.

Career Highlights

The two inventions reflect a focus on practical challenges in microgrid operation, including oscillation suppression and the coordination of diesel generation with energy storage. Both approaches use virtual synchronous control concepts to improve stability and synchronization.

Collaborations

Zhou is associated with Guangdong Zhicheng Champion Group Co., Ltd. His listed coworkers include Yandong Chen and Xiaoping Zhou.

Conclusion

Leming Zhou’s listed patent work centers on virtual synchronous control methods designed to improve the stability and coordination of island and diesel-storage microgrids.