Amplitude-phase correction overmodulation method and system under cascade H-bridge converter sub-module fault
The invention discloses an amplitude-phase correction overmodulation method and system under a cascade H-bridge converter sub-module fault, and the method comprises the steps: obtaining an output level of each phase and a space vector diagram of the output level according to the damage condition of...
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| creator | LIU, JIN-JUN CHU HENG ZHANG YAN CAO LI WANG BO JI ZIYUE |
| description | The invention discloses an amplitude-phase correction overmodulation method and system under a cascade H-bridge converter sub-module fault, and the method comprises the steps: obtaining an output level of each phase and a space vector diagram of the output level according to the damage condition of a cascade H-bridge multilevel converter sub-module, and carrying out the quantitative calculation of the coordinates of the vertex of a vector output convex hull and the related parameters of the boundary; applying a corresponding cross multiplication criterion to each boundary vector so as to judge a damaged rectangular region where the vector is located, and obtaining a corresponding rotation transformation vector for amplitude-phase correction; performing coordinate transformation on polar coordinates of each point on the vector diagram and a corresponding rotation transformation vector, specifying a vector amplitude phase correction principle, and solving a value of a reference trajectory circle radius through |
| format | Patent |
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applying a corresponding cross multiplication criterion to each boundary vector so as to judge a damaged rectangular region where the vector is located, and obtaining a corresponding rotation transformation vector for amplitude-phase correction; performing coordinate transformation on polar coordinates of each point on the vector diagram and a corresponding rotation transformation vector, specifying a vector amplitude phase correction principle, and solving a value of a reference trajectory circle radius through</description><language>chi ; eng</language><subject>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 ; 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applying a corresponding cross multiplication criterion to each boundary vector so as to judge a damaged rectangular region where the vector is located, and obtaining a corresponding rotation transformation vector for amplitude-phase correction; performing coordinate transformation on polar coordinates of each point on the vector diagram and a corresponding rotation transformation vector, specifying a vector amplitude phase correction principle, and solving a value of a reference trajectory circle radius through</description><subject>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</subject><subject>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjD0KwkAQhdNYiHqH8QBbhBRLyiBKKiv7MNmZmMD-sbMreHtj8ABWj8f73revXOeiXXIhVnFGYTAhJTZ5CR7Ci5MLVCxu1XGeAwF6AnlLZgfFEycwKAaJoVdjWuj5Vfj1mddJyqg2A8OExeZjtZvQCp9-eajOt-vj0iuOYWCJaNhzHi73utat1m2ju-Yf5gPm80L7</recordid><startdate>20240503</startdate><enddate>20240503</enddate><creator>LIU, JIN-JUN</creator><creator>CHU HENG</creator><creator>ZHANG YAN</creator><creator>CAO LI</creator><creator>WANG BO</creator><creator>JI ZIYUE</creator><scope>EVB</scope></search><sort><creationdate>20240503</creationdate><title>Amplitude-phase correction overmodulation method and system under cascade H-bridge converter sub-module fault</title><author>LIU, JIN-JUN ; 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applying a corresponding cross multiplication criterion to each boundary vector so as to judge a damaged rectangular region where the vector is located, and obtaining a corresponding rotation transformation vector for amplitude-phase correction; performing coordinate transformation on polar coordinates of each point on the vector diagram and a corresponding rotation transformation vector, specifying a vector amplitude phase correction principle, and solving a value of a reference trajectory circle radius through</abstract><oa>free_for_read</oa></addata></record> |
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| 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 |
| title | Amplitude-phase correction overmodulation method and system under cascade H-bridge converter sub-module fault |
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