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Remote microgrids are a viable option for electrification where the main grid expansion is either impossible or not economical. Typically, remote microgrid consists of diesel generator as a primary source of energy which has a high fuel cost. Renewable energy sources can be used to reduce the fuel consumption with proper coordination and scheduling methods. Storage devices, usually battery, used in...
This paper presents the model and the control of the rotor current loop a double-fed induction generator based on a robust generalized predictive controller. The controller is designed to minimize the control signal and ensure the reference tracking quickly and with a minimum of overshoot. Furthermore, it is proposed a new methodology for controller tuning based on a single parameter that allows a...
This paper presents an analysis about the impact of the inverter-based distributed generation on the fault location for distribution power systems. This work analyses the fault response in distributed generation and how it impacts in the fault location formulation. Additionally, it is presented an analysis of the electrical models of DG and its influence in the fault location performance. This study...
This paper presents a control system of the wind power generation with squirrel cage induction generator (SGIG). The control system is based on the back-to-back converter between the generator and grid. The vector control of the generator-side and grid-side converter was implemented in Matlab/Simulink/SymPowerSystems. In this work, it is proposed an indirect method, using a model, to obtain the terminal...
This paper presents a shunt-connected converter for interfacing a distributed generation system and the grid, with focus on uncontrolled small power wind generators. The objective is to show that the converter, with a suitable control strategy, is able to impose sinusoidal voltage and, in most cases, guarantee the compliance of the grid voltage with the THD standard levels. The strategy allows, simultaneously,...
In this work, wind turbine pitch angle control using a Fuzzy controller in real time simulation is presented. This controller is implemented in RTDS™ (Real Time Digital Simulator). It was built based on knowledge of operation principles of wind turbines equipped with variable pitch angle control, not requiring mathematical models for this. An alternative for the Proportional-Integral (PI) controllers...
This paper proposes a fast adaptive photovoltaic (PV) dc boost converter cascaded control scheme insensitive to solar irradiance variations. Moreover, the proposed controller makes possible the utilization of film capacitors instead of electrolytic capacitors to achieve long converter's lifetime. To achieve these objectives, it is proposed a current controller that works in both discontinuous conduction...
This paper presents a Multi-Agent System (MAS) to model and enable an active power management in a multiple microgrids system consisting of batteries, photovoltaic and diesel micro sources in islanded or grid-connected operation. The multi-agent system was developed in JADE (Java Agent DEvelopment Framework), a Foundation for Intelligent Physical Agents (FIPA) and a compliant open source multi-agent...
Distributed generation (DG) has grown over the years mainly due to environmental issues. DG are many varieties and sizes. This article presents an approach to some of this techniques, pointing out their advantages and disadvantages. The arrival of these new generation sources allowed greater variety in sources of energy, however this brought problems of control, protection, operation of the electrical...
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