Title:
単相誘導電動機を始動させるための装置、システムおよび方法
Document Type and Number:
Japanese Patent JP6924048
Kind Code:
B2
Abstract:
A device, system and method for starting a single-phase induction motor comprising the steps of:
i) energizing the start winding (50b) and continuously estimating an operating rotation (R 1 ) of the single-phase induction motor throughout its operation;
ii) measuring a first phase shift level (D 1 ) between at least two electrical quantities of the motor along a first stability stage (E 1 );
iii) monitoring the variation of the first phase shift level (D 1 ) according to the increase of the operating rotation (R 1 ) of the motor along the first stability stage (E 1 );
iv) detecting an inflection stage (E inf ) from the first phase shift level (D 1 ) to a second phase shift level (D 2 ), when the operating rotation (R 1 ) of the motor is close to a regime rotation (R 2 );
v) measuring the second phase shift level (D 2 ) between at least two electrical quantities of the motor along a first stability stage (E 2 ); and
vi) de-energizing the start winding (50b) when the operating rotation (R 1 ) reaches the regime rotation (R 2 ).
Inventors:
Marcelo Zanerat
Marcos Roberto De Souza
Marcos Roberto De Souza
Application Number:
JP2017046882A
Publication Date:
August 25, 2021
Filing Date:
March 13, 2017
Export Citation:
Assignee:
Embraco Industria De Compressoless A Solutions En Refrigila Sun Limitada
International Classes:
H02P1/42; H02K17/04
Domestic Patent References:
| JP2014507107A |
Attorney, Agent or Firm:
Megumi Konishi
Shigeyuki Nagaoka
Shigeyuki Nagaoka