KR950015915A - Slip Frequency Estimation Method of Induction Motors - Google Patents

Slip Frequency Estimation Method of Induction Motors Download PDF

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Publication number
KR950015915A
KR950015915A KR1019930025453A KR930025453A KR950015915A KR 950015915 A KR950015915 A KR 950015915A KR 1019930025453 A KR1019930025453 A KR 1019930025453A KR 930025453 A KR930025453 A KR 930025453A KR 950015915 A KR950015915 A KR 950015915A
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KR
South Korea
Prior art keywords
stator
slip frequency
voltage
frequency estimation
estimation method
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Application number
KR1019930025453A
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Korean (ko)
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KR0124150B1 (en
Inventor
김정균
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이대원
삼성항공산업 주식회사
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Priority to KR1019930025453A priority Critical patent/KR0124150B1/en
Publication of KR950015915A publication Critical patent/KR950015915A/en
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Publication of KR0124150B1 publication Critical patent/KR0124150B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

본 발명인 유도전동기의 슬립주파수 추정방법은 고정자전압으로부터 고정자자속을 계산하며, 고정자자속과 고정자전류명령으로부터 슬립주파수를 추정해냄으로써 유도전동기의 모든 파라미터에 충실한 추정이므로 정확한 슬립주파수 추정 이 가능하며, 제조회사에 따라 다른 전동기 파라미터에 능동적으로 정확한 슬립주파수 추정이 가능하다.The slip frequency estimation method of the induction motor of the present invention calculates the stator flux from the stator voltage, and estimates the slip frequency from the stator flux and the stator current command so that it is faithful to all the parameters of the induction motor. Depending on the company, accurate slip frequency estimates can be made actively for different motor parameters.

또한 부하토크의 변화에 무관하게 정확란 슬립주파수 추정이 가능하며, 유도전동기의 전 속도변화 영역에서 충실한 슬릴주파수 추정이 가능하다.In addition, accurate slip frequency estimation is possible regardless of load torque change, and faithful slitter frequency estimation is possible in the entire speed change range of induction motor.

Description

유도전동기의 슬립주파수 추정방법Slip Frequency Estimation Method of Induction Motors

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2A도는 유도전동기의 x축 모델을 도시한 회로도, 제2B도는 유도전동기의 y축 모델을 도시한 회로도,2A is a circuit diagram showing an x-axis model of an induction motor, FIG. 2B is a circuit diagram showing a y-axis model of an induction motor,

제4도는 본 발명의 흐름도이다.4 is a flowchart of the present invention.

Claims (3)

전동기에 인가되는 실제전압을 검출하여 얻은 디지탈 데이타를 계산 하여 실제전압값을 얻은후 고정자전압으로 바꾸는 과정; 상기 고정자전압으로부터 고정자자속을 계산하는 과정 ; 및 상기 고정자자속과 고정자전류명령으로부터 슬립주파수를 추정해내는 과정을 포함함을 특징으로 유도전동기의 슬립주파수 추정방법.Calculating a digital data obtained by detecting an actual voltage applied to the motor to obtain an actual voltage value and then converting the voltage into a stator voltage; Calculating a stator flux from the stator voltage; And estimating a slip frequency from the stator flux and the stator current command. 제1항에 있어서, 상기 고정자자속 계산과정은 다음 식가 같이 계산하여 구하는 것을 특징으로 하는 유도전동기의 슬립주파수 추정방법.The method of claim 1, wherein the stator flux calculation process is calculated by calculating the following equation. 여기서, ixs: 고정자 x축전류, iys: 고정자 y축전류, Vxs: 고정자 x축전압, Vys: 고정자 y축전압, Ws: 전동기 내부 변수들의 동기 각속도, Rs: 고정자 저항.Where i xs : stator x-axis current, i ys : stator y-axis current, V xs : stator x-axis voltage, V ys : stator y-axis voltage, W s : synchronous angular velocity of motor internal variables, R s : stator resistance. 제1항에 있어서,상기 슬립주파수 추정과정은 다음 식과 같이 계산하여 구하는 것를 특징으로 하는 유도전동기의 슬립주파수 추정방법.The method of claim 1, wherein the slip frequency estimation process is calculated and calculated as follows. 여기서,이다.here, to be. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930025453A 1993-11-26 1993-11-26 Slip frequency presumptive method of inducing motor KR0124150B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930025453A KR0124150B1 (en) 1993-11-26 1993-11-26 Slip frequency presumptive method of inducing motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930025453A KR0124150B1 (en) 1993-11-26 1993-11-26 Slip frequency presumptive method of inducing motor

Publications (2)

Publication Number Publication Date
KR950015915A true KR950015915A (en) 1995-06-17
KR0124150B1 KR0124150B1 (en) 1997-12-01

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Application Number Title Priority Date Filing Date
KR1019930025453A KR0124150B1 (en) 1993-11-26 1993-11-26 Slip frequency presumptive method of inducing motor

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Publication number Publication date
KR0124150B1 (en) 1997-12-01

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