Our research spans power-electronic-dominated energy systems, with a focus on smart grids, advanced power conversion, and grid-connected control.
We study the design and operation of smart grids and microgrids with high penetration of renewable energy and energy storage. Our focus includes modeling and control of inverter‑dominated networks, hierarchical and distributed coordination strategies, and energy management under uncertainty. The goal is to improve stability, resilience, and power quality in both grid‑connected and islanded operation, supported by system‑level validation.
High converter penetration introduces new stability mechanisms and interaction pathways. We investigate grid‑forming and grid‑following control strategies, impedance interactions, and harmonic stability, with particular attention to energy‑storage inverters and weak grids. We aim to provide design guidelines that balance dynamic performance, robustness, and practical implementation constraints.
We develop and analyze converter topologies that achieve high efficiency, high power density, and flexible power routing for modern applications. Topics include switched‑capacitor and differential converters, and multi‑port converters that integrate renewable sources, storage, and loads. Our work spans topology synthesis, modeling, modulation, and control, supported by prototype validation.
Power electronics is a key enabler for electrified transportation, including traction drives, onboard/offboard charging, and grid interaction. We investigate converter and control solutions that improve efficiency, reliability, and grid compatibility, and we explore integration with energy storage and energy management frameworks.
Emerging applications require power conversion systems that also communicate and coordinate. We explore techniques for embedding information transfer into power electronics systems (e.g., dual power/data modulation), and related concepts in power‑line or wireless transfer to support monitoring, control, and system integration.
We study reliability‑aware design and operation of power electronic systems, with attention to capacitors, thermal stress, and fault behavior. We also develop methods for power quality improvement, including harmonic mitigation and stability under non‑ideal grid conditions.