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Power Electronic Converters : PWM Strategies and Current Control Techniques /
A voltage converter changes the voltage of an electrical power source and is usually combined with other components to create a power supply. This title is devoted to the control of static converters, which deals with pulse-width modulation (PWM) techniques, and also discusses methods for current co...
| Clasificación: | Libro Electrónico |
|---|---|
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
London :
Wiley,
2013.
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| Colección: | ISTE.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Title Page; Copyright; Introduction; Chapter 1: Carrier-Based Pulse Width Modulation for Two-level Three-phase Voltage Inverters; 1.1. Introduction; 1.2. Reference voltages varef, vbref, vcref; 1.3. Reference voltages Pa ref, Pb ref, Pc ref; 1.4. Link between the quantities va, vb, vc and Pa, Pb, Pc; 1.5. Generation of PWM signals; 1.5.1. Reverse sawtooth wave; 1.5.2. Conventional sawtooth carrier; 1.5.3. Triangular carrier; 1.5.4. Note; 1.6. Determination of the reference waves Pa ref k, Pb ref k, and Pc ref k from the reference waves va ref k, vb ref k, vc ref k.
- 1.6.1. "Sine" modulation1.6.2. "Centered" modulation; 1.6.3. "Sub-optimal" modulation; 1.6.4. "Flat top" and "flat bottom" modulation; 1.7. Conclusion; 1.8. Bibliography; Chapter 2: Space Vector Modulation Strategies; 2.1. Inverters and space vector PWM; 2.1.1. Problem description; 2.1.2. Inverter model; 2.1.2.1. Initial equations; 2.1.2.2. Transformation 3/2; 2.1.2.2.1. Property; 2.1.2.2.2. Application; 2.1.3. Space vector modulation; 2.1.3.1. Role of PWM; 2.1.3.2. Principle of vector modulation; 2.1.3.2.1. Determining the correct sector; 2.1.3.2.2. Projections.
- 2.1.3.2.3. Determining the sequenceDuration of each sequence in the phase; Sequence list; Limitations; Control quantities; Computational implementation; 2.2. Geometric approach to the problem; 2.2.1. Degrees of freedom; 2.2.2. Extension to the full domain; 2.2.3. Space vector modulation; 2.2.4. PWM spectrum; 2.3. Space vector PWM and implementation; 2.3.1. Implementation hardware and general structure; 2.3.1.1. Implementation hardware; 2.3.1.2. General structure of a space vector PWM implementation; 2.3.2. Determination of working sector; 2.3.3. Some variants of space vector PWM.
- 2.3.3.1. Discontinuous space vector PWM2.3.3.2. Randomized space vector PWM; 2.4. Conclusion; 2.5. Bibliography; Chapter 3: Overmodulation of Three-phase Voltage Inverters; 3.1. Background; 3.2. Comparison of modulation strategies; 3.2.1. Introduction; 3.2.2. "Full-wave" modulation; 3.2.3. Performance of standard modulation strategies; 3.3. Saturation of modulators; 3.4. Improved overmodulation; 3.5. Bibliography; Chapter 4: Computed and Optimized Pulse Width Modulation Strategies; 4.1. Introduction to programmed PWM; 4.2. Range of valid frequencies for PWM.
- 4.3. Programmed harmonic elimination PWM4.4. Optimized PWM; 4.4.1. Introduction; 4.4.2. Minimization criteria; 4.4.2.1. Harmonic current; 4.4.2.2. Pulsation torque; 4.4.3. Applying optimization results; 4.4.3.1. Switching angle trajectories; 4.4.3.2. Control continuity over the entire operational range of the machine; 4.4.4. Principles of real-time generation; 4.5. Calculated multilevel PWM; 4.5.1. Introduction; 4.5.2. Calculated three-level PWM; 4.5.3. Calculated PWM with independent levels; 4.6. Conclusion; 4.7. Bibliography; Chapter 5: Delta-Sigma Modulation; 5.1. Introduction.