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Interactions between electricity market models and network models are more and more investigated due to higher international market integration and operation security concerns. In this paper, a procedure for flow-based analysis according to market results is proposed, in order to inspect the effects of new connections under varying operating conditions over a whole year. In particular, aggregated...
This paper describes the design and control requirements that are necessary to realize a microgrid starting from components already installed on distribution grids. The main attention has been paid to the technical and control arrangements needed for ensuring a safe transition from the on-grid to the off-grid mode of the experimental microgrid built at the Polytechnic of Bari. The control strategy...
The operation of different energy sources in a Smart Grid should be coordinated by means of the Energy management Systems both in the grid-connected mode, to be seen as a single controllable unit by the grid operator, and in the islanded mode, to successfully balance the internal load or to plan corrective measures. In this paper, formulations of procedures for day-ahead scheduling of a testbed Smart...
The integration of wind energy in power system is limited by its intermittency and uncertainty, impeding exact prediction of power generation and formulation of accurate delivery plan. The adoption of energy storage systems may improve the production planning forecast. In this paper, a programming model of a hybrid energy storage system for a wind farm is proposed. In particular, the algorithm is...
The operation of different energy sources in a MicroGrid (MG) has to be monitored and controlled by means of the Energy Management Systems (EMS) both in the grid-connected and islanded modes. In the first case, the MG can be seen as a single controllable unit by the grid operator whereas in the islanded mode the successful balance between internal load and planned generation is also required. In this...
Installation of gas-based power plants and energy carrier availability to final users have given rise to the need of synergies in the development of networks for electricity and gas. Moreover, electrically driven gas compressor stations and power-to-gas technologies open further levels of interaction. In this context, the analysis of interaction of electric power and gas flows and the development...
This paper deals with the experiences of operation of the PrInCE microgrid realized at Power and Energy System Laboratory of Politecnico di Bari in the framework of a structural development project. The main peculiarities of the facility are the integration of different commercial generators, the presence of cogeneration systems, the possibility to manage mode transition and the supervision and control...
A three layer Compton telescope for dose monitoring in hadron therapy has been developed at IFIC. It consists of three detector layers and each layer is made of a continuous LaBr3 crystal coupled to four silicon photomultiplier (SiPMs) arrays. A dedicated image reconstruction method has also been developed. The telescope has been characterized and tested with radioactive sources and in-beam. Simulations...
This paper aims at describing the experimental Microgrid (µG) built at the Politecnico di Bari within a project funded by the Italian Ministry of Education, University and Research. In particular, the µG will provide a test-bed for research, development and testing devices and components for smart-grid applications. Moreover, it will give the possibility to test new control strategies for the optimal...
The integration of wind energy in power system is severely limited by its intermittency and uncertainty, hindering true prediction of power generation and formulation of accurate delivery plan. The adoption of energy storage systems may improve the production planning forecast. In this paper, a programming model of a hybrid energy storage system for a wind farm is proposed. In particular, the algorithm...
Silicon photomultipliers (SiPM) are becoming more and more popular in different fields of physics. The use of SiPM arrays requires a data acquisition (DAQ) system capable of reading multiple channels for each event. A DAQ system for the control and the readout of 64-channel detectors was designed and fabricated. Significant improvements in performance and new functionalities have been done. The performance...
A three layer Compton telescope for dose monitoring in hadron therapy is under development at IFIC - Valencia. It will consist of three detector layers and each layer will be made of a continuous LaBr3 crystal coupled to four Silicon Photomultiplier (SiPM) arrays. A prototype made of two detector layers has already been assembled and tested. The detector layers consist of a 32×36×5 mm3 and 32×36×10...
The integration of a Micro Grid (MG) in the distribution system requires the development of energy management procedures to provide flexibility to distribution system operators. In this paper, a tool for the day-ahead operation plan of a grid-connected MG, including distributed generators, electrical and thermal loads and storage devices, is proposed. The operation condition of the MG components is...
Image reconstruction for Compton camera data can be problematic due to the common trade-off between physically realistic models and speed of computation. In this investigation a novel method of system matrix calculation - Simulated One-Pass Listmode (SOPL) - is extended to incorporate Compton camera data. The method reduces the Cone Surface Response for the Compton camera to an ensemble of Siddon-rays...
A Compton telescope prototype for dose monitoring in hadron therapy is under development. It will consist of three detector layers and each layer will be made of a continuous LaBr3 crystal coupled to four Silicon Photomultiplier (SiPM) arrays. As a first test, a small prototype made of only two detectors layers has been assembled. The camera is based on continuous LaBr3 and LYSO crystals coupled to...
This paper deals with the development of a centralized nonlinear auto-adaptive controller able to optimize the network voltage profile by managing the reactive power supplied by PV inverters. The control design is based on a realtime optimization procedure involving the sensitivity theory in conjunction with the Lyapunov function and produces the control laws that must be sent to local controllers...
This paper aims to analyze Variable Speed Wind Turbine impact on transient behavior of a power system using time domain simulation. To this purpose, suitable mathematical models for Doubly Fed Induction Generators and Permanent Magnet Synchronous Generators with their control devices are considered. Simulations allow to assess the influence of VSWT on conventional synchronous generator dynamics after...
Offshore wind power is spreading rapidly, even in zones where exploitation was considered unprofitable so far. Connection of offshore wind farms to the transmission network presents some challenges that needs be addressed. This paper investigates the effectiveness of exploiting generator power factor control for reactive power exchange regulation. The technical and economical feasibility of this control...
Microgrids exploitation is one of the most useful and efficient ways of integrating Distribution Generation (DG) technologies. Microgrids allow to realize a coordinate control of different DG facilities, and to provide proper control strategies to the distribution grid. In this paper, economical involvements affecting decisions of realization of microgrids are assessed. Furthermore, a procedure for...
Interest in the realization of offshore wind farms is growing even in zones where exploitation was considered unprofitable so far. For this reason, studies are needed in order to design suitable methodologies aiming to investigate economic feasibility and control strategies both in steady-state and dynamic conditions. In this work, the analysis of steady-state behaviour and investment concerns of...
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