Victor Sui-pung Cheung

TL;DR: In this article, a constant-frequency hysteresis current control for grid-connected voltage source inverter (VSI) is presented, which is based on predicting the current reference, system dynamic behavior, and past time to formulate the switching function for dictating the switching times of the switches in the inverter within a predefined switching period.

TL;DR: The theory, design, and implementation of a constant-frequency hysteresis current control for grid-connected voltage source inverter (VSI) is presented and experimental results show that the inverter can reach the steady-state in two switching actions after the inverters is subject to large-signal input and output disturbances.

TL;DR: In this article, a single-phase transformer-less unified power quality conditioner (TL-UPQC) is presented, which utilizes four switching devices only, forming two half-bridge voltage-source inverters connected in parallel with the load and another one connected in series with the ac mains.

TL;DR: In this article, a modular and scalable voltage-regulation structure for enhancing service continuity and flexibly changing the system power rating is proposed, which is based on paralleling multiple series-voltage compensators, namely multiparallel-connected series voltage compensator (MSVC), to regulate the load voltage.

TL;DR: In this paper, a modular and scalable series compensation technique for enhancing controllability and flexibility in power transmission in distributed power systems is proposed, which is based on paralleling multiple static synchronous series compensators (SSSC) through daisy-chained transformers to perform reactive power compensation, and thus control the amount and direction of the power flow over the transmission link.