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1. (WO2019050276) METHOD AND DEVICE FOR COMPENSATING FOR SCALE AND OFFSET ERRORS OF CURRENT SENSOR
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/050276 International Application No.: PCT/KR2018/010373
Publication Date: 14.03.2019 International Filing Date: 05.09.2018
IPC:
H02P 21/14 (2006.01) ,H02P 21/22 (2016.01) ,H02P 21/00 (2006.01) ,H02P 27/06 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
21
Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
14
Estimation or adaptation of machine parameters, e.g. rotor time constant, flux, speed, current or voltage
[IPC code unknown for H02P 21/22]
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
21
Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
27
Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage
04
using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06
using dc to ac converters or inverters
Applicants:
두산로보틱스 주식회사 DOOSAN ROBOTICS INC [KR/KR]; 경기도 수원시 권선구 산업로156번길 79 79, Saneop-ro 156beon-gil, Gwonseon-gu, Suwon-si, Gyeonggi-do 16648, KR
목포해양대학교 산학협력단 MOKPO NATIONAL MARITIME UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION [KR/KR]; 전라남도 목포시 해양대학로 91 91, Haeyangdaehak-ro, Mokpo-si, Jeollanam-do 58628, KR
Inventors:
이광운 LEE, Kwang Woon; KR
김상일 KIM, Sang Il; KR
Agent:
특허법인 정안 HONESTY & JR PARTNERS INTELLECTUAL PROPERTY LAW GROUP; 서울시 강남구 선릉로 615, 5층 5F, 615 Sunreung-ro, Gangnam-gu, Seoul 06103, KR
Priority Data:
10-2017-011352605.09.2017KR
Title (EN) METHOD AND DEVICE FOR COMPENSATING FOR SCALE AND OFFSET ERRORS OF CURRENT SENSOR
(FR) PROCÉDÉ ET DISPOSITIF DE COMPENSATION D'ERREURS D'ÉCHELLE ET DE DÉCALAGE D'UN CAPTEUR DE COURANT
(KO) 전류 센서의 스케일 및 옵셋 오차 보상 방법 및 장치
Abstract:
(EN) The present invention relates to a method and a device for compensating for errors, included in a measurement current, caused by offset and scale errors in a current sensor, and the device for compensating for an error current caused by an offset can comprise: an input unit for receiving a measurement current obtained by measuring, a current of two-phases, among three phases, coming from the current sensor and leading into an alternating current motor, and for generating the remaining one-phase current on the basis of the two-phase current according to Kirchhoff's Law; an abc-αβ conversion unit for converting a three-phase measurement current into a two-phase (α and β phases) current of an α-β coordinate system; an error compensation unit for calculating an error current caused by an offset on the basis of the compensated measurement current in a d-q coordinate system and a set target current, and for subtracting the calculated error current from the two-phase current of the α-β coordinate system so as to generate a compensated measurement current to be displayed on the α-β coordinate system; and an αβ conversion unit, which converts the compensated measurement current generated from the error compensation unit and displayed in the α-β coordinate system so as to generate a compensated measurement current in the d-q coordinate system.
(FR) La présente invention concerne un procédé et un dispositif de compensation d'erreurs, comprises dans un courant de mesure, provoquées par des erreurs de décalage et d'échelle dans un capteur de courant. Le dispositif de compensation d'un courant d'erreur provoqué par un décalage peut comprendre : une unité d'entrée permettant de recevoir un courant de mesure obtenu par mesure d'un courant biphasé, parmi trois phases, provenant du capteur de courant et débouchant dans un moteur à courant alternatif, et permettant de produire le courant monophasé restant sur la base du courant biphasé selon la loi de Kirchhoff; une unité de conversion abc-αβ permettant de convertir un courant de mesure triphasé en un courant biphasé (phases α and β) d'un système de coordonnées α-β; une unité de compensation d'erreurs permettant de calculer un courant d'erreur provoqué par un décalage sur la base du courant de mesure compensé dans un système de coordonnées d-q et d'un courant cible défini, et permettant de soustraire le courant d'erreur calculé du courant biphasé du système de coordonnées α-β de façon à produire un courant de mesure compensé à afficher sur le système de coordonnées α-β; et une unité de conversion αβ, qui convertit le courant de mesure compensé produit par l'unité de compensation d'erreur et affiché dans le système de coordonnées α-β de façon à produire un courant de mesure compensé dans le système de coordonnées d-q.
(KO) 본 발명의 전류 센서의 옵셋 및 스케일 오차에 의하여 측정 전류에 포함되는 오차를 보정하는 방법 및 장치에 관한 것으로, 옵셋에 의한 오차 전류 보정 장치는 상기 전류 센서로부터 오는 상기 교류 전동기로 인입되는 3 상 중 2 상의 전류를 측정한 측정 전류를 수신하고, 2 상의 전류를 바탕으로 나머지 1 상의 전류를 키르히호프 법칙에 따라 생성하는 입력부, 상기 3 상 측정 전류를 α-β좌표계의 2 상(α, β상) 전류로 변환하는 abc-αβ변환부, d-q 좌표계상의 보상된 측정 전류 및 설정된 목표 전류를 바탕으로 옵셋에 의한 오차 전류를 계산하고, 계산된 오차 전류를 상기 α-β좌표계의 2상 전류에서 차감하여 α-β좌표계로 표시되는 보상된 측정 전류를 생성하는 오차 보상부, 및 상기 오차 보상부에서 생성한 α-β좌표계로 표시되는 보상된 측정 전류를 변환하여 d-q 좌표계상의 보상된 측정 전류를 생성하는 αβ변환부를 포함할 수 있다.
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African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)