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Title:
EMULATOR DEVICE FOR EMULATING A VARIABLE IMPEDANCE AND A SYSTEM FOR CONTROLLING AND REGULATING THE STATE OF A NEUTRAL CONDUCTOR IN A POLYPHASE SYSTEM COMPRISING SUCH A DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/018072
Kind Code:
A3
Abstract:
An impedance emulator device (5-8, 15) which is variable in a controlled manner comprises an inductor (L) connected between a first and a second terminal (2, T), an ordered array (5) of solid-state electronic switches (Ql, Q2), connected to said inductor (L), and control devices (6-8, 15) adapted to apply to control terminals of the electronic switches (Ql, Q2) of this array driving signals for controlling the conduction of current therethrough such that said array (5) of electronic switches is in a condition to emulate, as a whole, an impedance and in particular a reactance, variable in a controlled manner in its modulus and phase. The impedance emulator device (5-8, 15) can conveniently be used in a system (1) for controlling and regulating the state of the neutral conductor (N) in a polyphase system for the distribution of electric power.

Inventors:
MULINACCI MASSIMO (IT)
Application Number:
IB2012/053989
Publication Date:
April 11, 2013
Filing Date:
August 03, 2012
Export Citation:
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Assignee:
MICROELETTRICA SCIENT S P A (IT)
MULINACCI MASSIMO (IT)
International Classes:
H02H9/08; H01F29/00
Foreign References:
US5699219A1997-12-16
CN201174575Y2008-12-31
CN2751475Y2006-01-11
SU807438A11981-02-23
US4471401A1984-09-11
Attorney, Agent or Firm:
QUINTERNO, Giuseppe et al. (Corso Emilia 8, Torino, I-10152, IT)
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