INVERTER CONTROL METHOD

PURPOSE:To suppress torque ripple by generating three types of flux vectors for switching a transistor ON/OFF three times within a predetermined time. CONSTITUTION:ON/OFF pattern of flux vector lambda (110) is generated continuously (TW1) thus outputting a flux vector lambda1 finally. On the other h...

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Bibliographic Details
Main Author OKADA YASUHIKO
Format Patent
LanguageEnglish
Published 19.03.1993
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROL OR REGULATION THEREOF
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:PURPOSE:To suppress torque ripple by generating three types of flux vectors for switching a transistor ON/OFF three times within a predetermined time. CONSTITUTION:ON/OFF pattern of flux vector lambda (110) is generated continuously (TW1) thus outputting a flux vector lambda1 finally. On the other hand, ON/OFF pattern of a flux vector (010) is generated continuously thus outputting a flux vector lambda2 finally. Furthermore, ON/OFF pattern of a flux vector lambda (000) or lambda(111) is outputted for a remaining time [TS-(TW1+TW2)] of a constant time TS thus outputting the zero vector of a flux vector lambda0 which is finally matched with a flux vector command lambda' so that a vector amount phi2 follows up a vector amount phi'. In the formula, absolute values of TW1, TW2 can be represented as follows; TW1=TSX[lambda1/lambda (110)], TW2=TSX[lambda2/lambda (010)].
Bibliography:Application Number: JP19910257016