DC Machine Maintenance and Power Electronics Fundamentals

Course objectives

• Identify and explain the various types of power conversion system and their industrial applications
• Differentiate ideal from practical power semiconductor switches and analyse their switching characteristics and losses
• Apply analytical techniques to power electronics circuits and calculate power, power factor and harmonic components
• Explain the operation of rectifier, phase controlled and force commutated converter circuits
• Analyse Buck, Boost and Buck Boost DC to DC converters in continuous and discontinuous conduction modes
• Explain the operation of DC to AC inverter systems and apply pulse width modulation techniques
• Evaluate the advantages and limitations of soft switching topologies, including Zero Current and Zero Voltage Switching

Who should attend

• Electrical, electronics, control and instrumentation engineers and technicians
• Maintenance and operations personnel
• Power system and industrial plant engineers
• Technical supervisors and engineering managers working with power conversion systems
• Anyone responsible for operating, maintaining or troubleshooting interconnected power systems using AC to DC and DC to AC converters

Course outline

1. 01Day 1: power electronic systems, classification of power processors and converters, symbols and conventions
2. 02Day 1: power semiconductor switching devices, switching characteristics and losses, drive and snubber circuits
3. 03Day 1: line frequency and phase controlled rectifiers, inrush currents, harmonics and power factor
4. 04Day 2: DC to DC switch mode converters covering Buck, Boost, Buck Boost, Cuk and full bridge topologies
5. 05Day 2: DC to AC inverters, single phase and three phase, pulse width modulation and blanking time effects
6. 06Day 2: resonant and soft switching converters, switching power supplies and uninterruptible power supplies
7. 07Day 3: DC motor drives, adjustable speed drives and DC servo applications
8. 08Day 3: AC motor drives, variable frequency drives, soft starters and synchronous motor drives
9. 09Day 3: utility applications including HVDC transmission, static VAR compensators and renewable integration
10. 10Day 3: power quality, harmonic mitigation, active power filters and electromagnetic interference standards

Scheduled sessions