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In steel industry, reheating furnaces are the biggest energy consumers after the blast furnace. The purpose of a slab reheating furnace is to heat steel slabs to a suitable temperature profile (around 1250°C) before entering to hot rolling phase. The reheating furnace is divided in zones, each zone being controlled independently. In this paper, a model considering the coupling effect between zones...
Open loop ring resonators are used as the basic block of a compact planar triplexer, they are used in cascaded trisection (CT) filters, in order to reduce the circuit size. The CT filter has a cross coupling that produces a single attenuation pole at finite frequency used to shape the bandpass response. Ring resonators are properly located with respect to the input and output feed lines, in order...
In this paper, spacecraft and aircraft mock-ups are used to simulate the performance of KRON based tools applied to the simulation of large EMC systems. These tools aim to assist engineers in the design phase of complex systems. This is done by effectively evaluating the EM disturbances between antennas, electronic equipment, and Portable Electronic Devices found in large systems. We use a topological...
A circularly polarized slot radiator in millimetre band is presented. Low reflection and good polarization performance is obtained in comparison with state of art slot elements. A high gain array prototype has been implemented in substrate integrated waveguides (SIW) technology, in order to check the new element performance. A cosecant amplitude coverage in the elevation plane, as well as a 6° tilted...
This paper presents a novel method for identification of grid impedance which can be applied to grid connected power converters. Active power variations together with grid voltage control are used to obtain two operating points necessary for the algorithm proposed. Grid currents and voltages in the two operating points are then reported to an arbitrary synchronous reference frame, resulting the equations...
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