variation of frequency and voltage by load changes in a microgrid is a challenge in droop control method. centralized restoration frequency or voltage in a microgrid requires communication link and therefore affects the advantage of decentralized droop control such as reliability, simplicity and inexpensiveness. this paper proposes a decentralized method that restores the frequency of a microgr...

This paper presents a framework for the use of variable pricing to control electricity imported/exported to/from both fixed and unfixed residential distributed energy resource (DER) network designs. The shows that networks utilizing much their own energy, importing little from national grid, are barely affected by dynamic import pricing, but encouraged sell more export pricing. An increase in C...

In this paper, the resource allocation problem is considered for energy efficient spectrum access in a wireless cognitive radio ad hoc network, where each node is equipped with cognitive radio and has limited battery energy. The network is an OFDMA system operating on time slots. In each slot, the users with new traffic demand will sense the entire spectrum and locate the available subcarrier s...

This paper presents a model of a distributed energy storage resource and its actuation signal. Many previous studies of distributed energy storage systems have assumed that the system has no energy storage limitations and that the actuation signal has no net or instantaneous energy content. This model includes these conditions so as to enable the design of automatic generation control signals w...

renewable energy sources like wind, sun, and hydro are considered as a reliable alternative to the traditional energy sources such as oil, natural gas, or coal. this paper describes modeling and simulations to determine a method for the power performance evaluation of autonomous wind turbine system. a speed control regulator is utilized to control the dc bus voltage. the inverter gate’s signals...

Title of dissertation: MINIMIZATION OF RESOURCE CONSUMPTION THROUGH WORKLOAD CONSOLIDATION IN LARGE-SCALE DISTRIBUTED DATA PLATFORMS Ashwin Kumar Kayyoor, Doctor of Philosophy, 2014 Dissertation directed by: Associate Professor Amol Deshpande, Associate Professor Jimmy Lin Department of Computer Science The rapid increase in the data volumes encountered in many application domains has led to wi...