Conceptual Study of Vernier Generator and Rectifier Association for Low Power Wind Energy Systems

Abstract

In this paper, we study a wind energy conversion system designed for domestic use in urban or agricultural areas. We first present the turbine, which was specifically designed to be installed on the buildings that it supplies. Based on turbine characteristics, we perform analytical sizing of a Permanent Magnet Vernier Machine (PMVM), which will be used as a generator in our energy conversion system. We show the influence of this generator on system operation by studying its association with a PWM rectifier and with a diode bridge rectifier. We then seek to improve generator design so that the turbine operates closely to maximum power points, while using a simple and robust energy conversion system. We use simulation to show the improvements achieved by taking into account the entire energy conversion system during machine design.

Concept, Feasibility of Cylindrical Bar Winding for Low Voltage Permanent Magnet Synchronous Motor

“…In the case where the currents in all conductors are identical and in phase, we have a simplification of the expression of K as Equation (13).…”

“…where b 1an is the amplitude of the fundamental radial component b n of induction in the air gap due to the magnets and λ 1 is the amplitude of the fundamental of the tangential component h t of the field created by the armature currents. Additionally λ 1 is a linear current density that allows for the replacement of the slot currents by an equivalent thin layer producing the same amplitude h 1Jt [13].…”

Special Issue on Power Converter of Electric Machines, Renewable Energy Systems, and Transportation

“…Three papers are devoted to wind power systems. The paper authored by Philippe Enrici, Ivan Meny and Daniel Matt, studied a low-power wind system based on a perma-nent magnet Vernier machine, in association with a PWM rectifier, with a diode bridge rectifier [5]. The second paper [6], authored by Ronglin Ma, Yaozhen Han and Weigang Pan, proposes a novel adaptive super-twisting sliding mode subsynchronous control interaction mitigation method, for series-compensated doubly fed induction generatorbased wind power systems.…”

Recent Development in the Design of Wind Deflectors for Vertical Axis Wind Turbine: A Review

“…The electrical power generation coefficient of the vertical axis wind turbines is up to 24%; however, a 30% efficiency increase can be achieved by optimizing the existing VAWT designs [1]. Initiatives have been taken by many researchers to improve power generation efficiency; these attempts incorporate modifications in the blade geometry design or the configuration of VAWT devices [34]. Nevertheless, blade geometry modification is one of the techniques to consider when designing a VAWT, such techniques are summarised in Table 2.…”