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ELECTRIC DRIVES

ELECTRIC DRIVES. Ion Boldea S.A.Nasar 1998. 2. ELECTRIC MOTORS FOR DRIVES. 2.1. ELECTRIC DRIVES A TYPICAL CONFIGURATION. A modern electric drive [1 - 8] capable of controlled variable speed is made of some important parts (figure.2.1) such as: the electric motor;

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ELECTRIC DRIVES

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  1. ELECTRIC DRIVES Ion Boldea S.A.Nasar 1998 Electric Drives

  2. 2. ELECTRIC MOTORS FOR DRIVES 2.1. ELECTRIC DRIVES A TYPICAL CONFIGURATION • A modern electric drive [1 - 8] capable of controlled variable speed is made of some important parts (figure.2.1) such as: • the electric motor; • the power electronic converter (PEC); • the electric and motion sensors; • the drive controller; • the command interface. Electric Drives

  3. Figure 2.1. Electric drive basic topology Electric Drives

  4. 2.3. D.C. BRUSH MOTORS Electric Drives

  5. 2.4. CONVENTIONAL A.C. MOTORS • Figure 2.3. Three phase induction motor • a. with a cage rotor and PEC in the stator; • b. with slip - rings wound rotor and PEC on the rotor Electric Drives

  6. Figure 2.4 Conventional salient pole rotor synchronous motor fed through a full power PEC in the stator Electric Drives

  7. Figure 2.5. Conventional reluctance synchronous motor fed through a full power PEC in the stator Electric Drives

  8. Figure 2.6. PM synchronous motor (PM - SM) - singly salient - (PEC dependent) a. pole magnet rotors b. interpole magnet rotors Electric Drives

  9. Figure 2.7. Three phase switched reluctance 6/4 motor (SRM) - PEC dependent Electric Drives

  10. 2.6. SUMMARY We summarise the motor candidates for variable speed electric drives in table 2.1. Table 2.1. Electric motors for drives Electric Drives

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