Analysis and Control of Electric Drives. Ned Mohan

Чтение книги онлайн.

СКАЧАТЬ rel="nofollow" href="#ulink_01b4127f-9f11-55b0-a8e2-af4bc2a6b4ea">5‐9 REVIEW QUESTIONS REFERENCES FURTHER READING PROBLEMS AND SIMULATIONS

      8  Part II: Steady‐State Operation of ac Machines 6 Using Space Vectors to Analyze ac Machines 6‐1 INTRODUCTION 6‐2 SINUSOIDALLY DISTRIBUTED STATOR WINDINGS 6‐3 THE USE OF SPACE VECTORS TO REPRESENT SINUSOIDAL FIELD DISTRIBUTIONS IN THE AIR GAP 6‐4 SPACE‐VECTOR REPRESENTATION OF COMBINED TERMINAL CURRENTS AND VOLTAGES 6‐5 BALANCED SINUSOIDAL STEADY‐STATE EXCITATION (ROTOR OPEN‐CIRCUITED) 6‐6 REVIEW QUESTIONS REFERENCES FURTHER READING PROBLEMS 7 Space Vector Pulse‐Width‐Modulated (SV‐PWM) Inverters 7‐1 INTRODUCTION 7‐2 SYNTHESIS OF STATOR VOLTAGE SPACE VECTOR

7‐3 COMPUTER SIMULATION OF SV‐PWM INVERTER 7‐4 LIMIT ON THE AMPLITUDE

OF THE STATOR VOLTAGE SPACE VECTOR

7‐5 Hardware Prototyping of Space Vector Pulse Width Modulation 7‐6 SUMMARY REFERENCE FURTHER READING PROBLEMS 8 Sinusoidal Permanent‐Magnet ac (PMAC) Drives in Steady State 8‐1 INTRODUCTION 8‐2 THE BASIC STRUCTURE OF PMAC MACHINES 8‐3 PRINCIPLE OF OPERATION 8‐4 THE CONTROLLER AND THE PPU 8‐5 HARDWARE PROTOTYPING OF PMAC MOTOR HYSTERESIS CURRENT CONTROL 8‐6 REVIEW QUESTIONS REFERENCE FURTHER READING PROBLEMS 9 Induction Motors in Sinusoidal Steady-State 9‐1 INTRODUCTION 9‐2 THE STRUCTURE OF THREE‐PHASE, SQUIRREL‐CAGE INDUCTION MOTORS 9‐3 THE PRINCIPLES OF INDUCTION MOTOR OPERATION 9‐4 TESTS TO OBTAIN THE PARAMETERS OF THE PER‐PHASE EQUIVALENT CIRCUIT 9‐5 INDUCTION MOTOR CHARACTERISTICS AT RATED VOLTAGES IN MAGNITUDE AND FREQUENCY 9‐6 INDUCTION MOTORS OF NEMA DESIGN A, B, C, AND D 9‐7 LINE START 9‐8 HARDWARE PROTOTYPING OF INDUCTION MOTOR PARAMETER ESTIMATION 9‐9 REVIEW QUESTIONS REFERENCES FURTHER READING PROBLEMS 10 Induction‐Motor Drives 10‐1 INTRODUCTION 10‐2 CONDITIONS FOR EFFICIENT SPEED CONTROL OVER A WIDE RANGE 10‐3 APPLIED VOLTAGE AMPLITUDES TO KEEP

10‐4 STARTING CONSIDERATIONS IN DRIVES 10‐5 CAPABILITY TO OPERATE BELOW AND ABOVE THE RATED SPEED 10‐6 INDUCTION‐GENERATOR DRIVES 10‐7 SPEED CONTROL OF INDUCTION‐MOTOR DRIVES 10‐8 PULSE‐WIDTH‐MODULATED PPU 10‐9 Harmonics in the PPU Output Voltages 10‐10 REDUCTION OF

AT LIGHT LOADS 10‐11 HARDWARE PROTOTYPING OF CLOSED‐LOOP SPEED CONTROL OF INDUCTION MOTOR 10‐12 SUMMARY/REVIEW QUESTIONS REFERENCE FURTHER READING PROBLEMS

      9  Part III: Vector Control of ac Machines 11 Induction Machine Equations in Phase Quantities: Assisted by Space Vectors 11‐1 INTRODUCTION 11‐2 SINUSOIDALLY DISTRIBUTED STATOR WINDINGS 11‐3 STATOR INDUCTANCES (ROTOR OPEN‐CIRCUITED) 11‐4 EQUIVALENT WINDINGS IN A SQUIRREL‐CAGE ROTOR 11‐5 MUTUAL INDUCTANCES BETWEEN THE STATOR AND THE ROTOR PHASE WINDINGS СКАЧАТЬ