Braking chopper, dc -to -ac converter and converter

• Main Authors: SALMIA, TEEMU, KITTILA, JUKKA-PEKKA, HERRALA, TERO
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2017
• 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; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

This discloses the content and relates to a dc -to -ac converter and the converter brakeing the chopper and include this braking chopper. Does the braking chopper include the positive pole (DC+) and negative pole (DC of series connection at the braking chopper )Between first switch (S1) and brake resistance (R1), arranged in pairs that first switch (S1) carries out the controlling means (10 who controls, 11 )And be coupled the device, should be coupled the device is arranged and is coupled to controlling means (10 in response to the operating voltage who is received by controlling means is more than or equal to first predetermined threshold value with the control connection end of first switch (S1), 11 )The control output, and in response to the positive pole (DC+) and negative pole (DC of brakeing the chopper )Between voltage exceed the predetermined threshold value of second and will be by the positive pole (DC+) and negative pole (DC of braking chopper )Between the voltage that voltage formed be coupled to