Loss Calculations and Efficiency in Switched Reluctance Machines — Lesson 7

This lesson covers the process of loss calculations and efficiency analysis in switched reluctance machines. It delves into the specifics of copper losses, core losses, and mechanical losses. The lesson also discusses the impact of temperature effects, AC resistance effect, skin effects, and proximity effect on these calculations. It further explores the concept of stray load losses and how they are calculated. The lesson also provides an overview of the efficiency calculations of switched reluctance machines using different analytical methods. Towards the end, it discusses the design specifications of switched reluctance machines, using data sheet.

Video Highlights

00:00 - Introduction
01:00 - Explanation and calculations of copper losses
02:51 - Calculations of core loss
04:17 - Calculations of Mechanical and bearning losses
06:27 - Overview of stray load losses
06:48 - Detailed analysis of efficiency calculations
08:11 - Examination of switched reluctance machine data sheet

Key Takeaways

- The efficiency analysis of switched reluctance machines is similar to that of induction machines.
- Copper losses, core losses, and mechanical losses are the three main types of losses in these machines.
- Stray load losses, which are not considered in the other types of losses, can be calculated as a percentage of the total losses.
- The efficiency of switched reluctance machines can be calculated using different analytical methods.
- Real-world data sheets provide valuable insights into the design specifications of switched reluctance machines.