Multi-carrier cooperative relay-based wireless communication is of particular interest in future wireless networks. In this paper we present resource allocation algorithm in which sub-carrier pairing is of particular interest along with fairness constraint in multi-user networks. An optimization of sub-carrier pair selection is formulated through capacity maximization problem. Sub-carrier pairi...

This paper presents a model for the microgrid planning problem with uncertain physical and financial information. The microgrid planning problem investigates the economic viability of microgrid deployment and determines the optimal generation mix of distributed energy resources (DERs) for installation. Net metering is considered for exchanging power with the main grid and lowering the cost of u...

This paper presents the concept to develop energy management system of the 120 kWp microgrid system by using computer software agent technology called agent base technology. The microgrid energy management system is used to present all information in the system and to inform the system administrator for any status of the microgrid system. The system administrator can use data and simulation res...

This paper proposes a new adaptive controller for the robust control of a grid-connected multi-DG microgrid (MG) with the main aim of output active power and reactive power regulation as well as busbar voltage regulation of DGs. In addition, this paper proposes a simple systematic method for the dynamic analysis including the shunt and series faults that are assumed to occur in the MG. The pres...

Multi-carrier modulation (MCM) techniques are used for high bit rate data transmission in radio transmission systems. The main scope of this work includes understanding a multi-carrier modulation system and setting up a simulation environment for such a system as applied in the case of Asymmetric Digital Subscriber Loop (ADSL) system and Orthogonal Frequency Division Multiplex (OFDM) system. Th...

With the increasing connection of controllable devices to isolated community microgrid, an economic operation model of isolated community microgrid based on the temperature regulation characteristics of temperature controlling devices composed of wind turbine, micro-gas turbine, energy storage battery and heat pump is proposed. With full consideration of various economic costs, including fuel c...

A microgrid systems is a new technology for improving reliability and providing alternative energy supplies to the grid system. Low voltage faults in the system are one of the critical issues that require distributed generating sources to disconnect from grid provide energy to the load. Therefore the techniques used in the microgrid system with microsoures can be important in reducing the probl...

This paper presents the development of a decision support system (DSS) for a low-voltage grid with renewable energy sources (photovoltaic panels and wind turbine) which aims at achieving energy balance in a pilot microgrid with less energy consumed from the network. The DSS is based on a procedural decision algorithm that is applied on a pilot microgrid, with energy produced from renewable ener...

Load variation, distributed power output uncertainty and multi-microgrids network complexity have brought great difficulties to the frequency stability of whole microgrid. To address this problem, paper uses a multi-agent deep reinforcement learning(DRL) algorithm design controllers control multi-microgrids. Firstly, load (LFC) model for was built. Secondly, based on centralized training decent...

A dynamic equivalent black-box model, based on Prony analysis is presented in this paper. The proposed model is suitable for dynamic studies of microgrids, considering changes in the active and reactive power, bus voltages, currents and frequency. The developed model is evaluated using simulation results obtained from a medium voltage microgrid and test measurements recorded in a low voltage mi...