Internal compensation method of A.C motor and its winding connection method

A technology of AC motor and compensation method, which is applied to the shape/style/structure of winding conductors, reactive power compensation, reactive power adjustment/elimination/compensation, etc., which can solve the problem that the effect of capacitance compensation does not extend to the inside of the motor and the starting current is large , low reliability and other issues
CN1477757AInactive Publication Date: 2004-02-25刘建平
1 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
刘建平
Publication Date
2004-02-25
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention provides an internal compensation method of AC motor and its winding coupling method. The capacitor internal compensation uses the capacitor to make the interconnected star stator winding respectively produce its current superposition and phase-shifting action to make the resultant currents of two-to-four winding parts divided from every phase approach to that all the phasesare identical and numerical values are uniform so as to raise the induced potential of stator winding and reduce the loss of reactive current. The interconnected star winding has three compensation ends with two or three winding parts led from three-phase stator winding, and can be coupled into several forms of hexagonal-three-star form, hexagonal-six-star form, interconnected star and variable-electrode 3-V type.
Need to check novelty before this filing date? Find Prior Art

Description

1. Technical Field

[0001] The invention belongs to the field of motor disciplines, and in particular relates to an internal compensation method of an AC motor and a method for connecting windings thereof. 2. Background technology

[0002] The compensation methods used by the current technology for the inductive reactive current of three-phase AC motors mainly include the so-called in-situ compensation and dual-winding internal compensation. Reactive on-site compensation is to directly connect a three-phase capacitor bank next to the motor, and use the compensation effect that the capacitive current is ahead of the voltage phase to reduce the reactive power loss of its distribution lines. The dual-winding internal compensation is the inventor of the present invention and applied for a utility model patent in 2001. Its name is "Dual-winding Capacitor Internal Compensation Motor" and the patent number is ZL01228605.2. This type of dual-winding internal compensation is to connect the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More