Modelling and design of PID controller for voltage control of AC hybrid micro-grid

Abstract

<span>The growing demand for power that needs to be remotely transported creates a fast and effective solution of Distributed Energy Resources (DERs) integration. Distributed Energy Resources (DERs) can lessen the electrical and physical distance between load loss and generator, transmission and distribution, and the level of carbon emissions. Such challenges can be overcome by using microgrids, which combine various types of DERs without interrupting the grid operation, allowing the power system to detect and control the errors more efficiently, allowing the shedding load and automatic switching through control algorithms so that blackouts and power restoration times are shortened, enabling either a relevant grid or islanded mode operation, and improving system reliability and flexibility via DERs. This work includes modelling of hybrid AC micro-grid as well as presenting an efficient control technique for micro-grid. In the present work the performance of hybrid AC microgrid system is analyzed in the islanded mode. Photovoltaic system and fuel cell stack are used for the development of microgrid. It also includes microgrid control objectives and the most common problems encountered and their solutions. The employed control technique is able to control the output voltage at a desired and standard value. The control strategies of the hybrid AC microgrid are simulated in MATLAB/SIMULINK.</span>

Design of shunt hybrid active power filter for compensating harmonic currents and reactive power

“…Therefore, the THD value after applying shunt HAPF is in parallel with the standard requirement. However, compared to the obtained result of THD value with respect to the previous research done in [10,[18][19][20][21][22][23], the THD value is 2.60% slightly higher than the simulation result obtained in this research.…”

Pre-scheduled load shutdown in microgrid utilizing computerized surveillance system

“…The programmable load shedding [20][21][22] is carried out using Arduino. The safety of the system is taken into consideration and a system security password is programmed to restrict the accessibility.…”

Design and simulation of a microgrid for TIH campus

“…The loads observed required real and reactive powers under various operation conditions to maintain control of frequency and voltage. The following control strategies were introduced: real and reactive control strategy, real and reactive power constraint, real power priority constraint, and PF-QV control strategy [5][6]. A different study of MG design included designing a visualization tool to explain the result of sizing of RES and its effectiveness under various loads and bring attention of operators to where the power is generated and consumed [7].…”