Wideband series harmonic voltage compensator using look-ahead state trajectory prediction for network stability enhancement and condition monitoring

JCT Lai, HSH Chung, Y He, W Wu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
A wideband series harmonic voltage compensator (WSHVC) with an operating bandwidth of
10 kHz for microgrids with a plurality of grid-connected inverters (GCIs) is proposed. It …

Using Kalman filter to achieve online estimation of equivalent grid impedance and high bandwidth control for LCL-filtered grid-tied inverters

Y Cheng, W Wu, H Chung, F Blaabjerg… - IECON 2020 The …, 2020 - ieeexplore.ieee.org
In grid-tied DC/AC inverter applications, the equivalent grid impedance often varies widely,
which may limit the bandwidth of the inverter control system. This paper introduces a new …

Modified kalman filtering method to reduce the error of power grid impedance online estimation

Y Cheng, W Wu, H Chung, F Blaabjerg… - 2021 IEEE 12th …, 2021 - ieeexplore.ieee.org
In the power electric based power system, the grid impedance may change over time, which
seriously affects the control and stability of the grid-connected converters. The existing …

Small signal stability analysis of three-phase microgrid in the presence of energy storage system

S Kamala, NBY Gorla, SK Panda - 2020 IEEE International …, 2020 - ieeexplore.ieee.org
The presence of regulated power converter in the three-phase microgrid system makes it
vulnerable to interactions with the grid and causes instability. Because, the regulated …