Single-Phase Microgrid With Seamless Transition Capabilities Between Modes of Operation

A Modified Droop Controller for Parallel Operation of Single-Phase Inverters in Islanded Microgrid

Conventional droop control is a basic control strategy for power sharing in islanded microgrid applications. This strategy has several limitations, such as low transient response, frequency and voltage deviations. This paper presents a modified droop control method for the proper operation of parallel-connected inverters in islanded microgrid. The proposed method is able to improve transient re...

Dynamical Phase Transition in Vibrational Surface Modes

We consider the dynamical properties of a simple model of vibrational surface modes. We obtain the exact spectrum of surface excitations and discuss their dynamical features. In addition to the usually discussed localized and oscillatory regimes we also find a second phase transition where the surface mode frequency becomes purely imaginary and describes an overdamped regime. Noticeably, this t...

Hardware Development of a Laboratory-Scale Microgrid Phase 2: Operation and Control of a Two-Inverter Microgrid

Operation Modes of a Secondary-Side Phase-Shifted Resonant Converter

Abstract: In this work, a unidirectional full-bridge resonant converter with secondary-side phase-shifted control is addressed. With the variation of voltage gain and power level, this converter may enter into different operational modes, including three continuous current modes and one discontinuous current mode. The details in each operation mode are discussed one by one. The boundary conditi...

Modeling and Operation of Microgrid with Wind and Photovoltaic Resources

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The interconnection of small modular devices such as photovoltaic, small wind turbines and storage devices ,commonly storage batteries to a Low Voltage distribution system leads to a new energy system known as the Microgrid. This paper presents the...