Programmable Emulator Research Articles

Scalable and Programmable Emulation of Photonic Hyperbolic Lattices

Scalable and Programmable Emulation of Photonic Hyperbolic Lattices

Thermoelectric energy harvesting system for demonstrating autonomous operation of a wireless sensor node enabled by a multipurpose interface

This paper demonstrates the autonomous operation of a wireless sensor node exclusively powered by thermoelectric energy harvesting. Active operation of a wireless sensor system is demonstrated successfully by means of an on-line programmable emulation kit that enables various thermoelectric energy harvesting scenarios. Moreover, this emulation kit accomplishes autonomous wireless sensor node operation by interfacing a small-scaled thermogenerator via a CMOS integrated autonomous multipurpose energy harvesting interface circuit performing maximum power point tracking.

Programmable energy source emulator for photovoltaic panels considering partial shadow effect

The aim of this paper is to study and produce a programmable emulator for photovoltaic panels. A uniform solar illumination model, a partially shaded model with two photovoltaic modules in series and a partially shaded model with two photovoltaic modules in parallel are proposed in this paper. Solar illumination and ambient temperature can be set on the emulator to emulate the behavior of a photovoltaic panel and to explore the effect of its being polluted by dust, shaded by clouds or solar oblique incidence. When making the physical models, a digital signal processor is used to calculate the quiescent points of the photovoltaic panels according to the load resistance and characteristics of the photovoltaic panels, and a DC (direct current)/DC buck power converter is adopted to adjust the output of the emulator in accordance with the quiescent points. To reduce the DSP's (digital signal processor) calculation burden, a characteristic curve segmentation method is proposed. This study successfully develops a 300 W/60 V emulator for photovoltaic panels under uniform solar illumination and partially shaded conditions. The load is changed over and over again so as to sketch the V–P curve and confirm the feasibility of the emulator.

DESIGN AND REALIZATION OF PROGRAMMABLE EMULATOR OF MECHANICAL LOADS

This paper concerns design and realization of programmable emulator of mechanical loads for motors. The aim of this paper is to build integrated test equipment, which will allow realistic testing of drive parameters and mainly quality of control structures on controlling different kinds of loads. For this purpose create user-friendly software which will allow emulation of physical system in real-time using xPC Target under Matlab 6.1.