Electrical Energy Technologies

The study of electrical technologies is an essential part of the learning outcome for an Energy Engineer. It is critical that the student understands the safe operation of modern electrical systems to allow for effective and economic use of plant. In this module students will learn about the electrical technologies associated with various industrial and power transmission systems, which assists in reducing electrical energy consumption. The course begins with a review of basic DC and AC theory and goes on to look at power factor and its correction. Transformers which form a critical [part of the electrical transmission network are then introduced. The distribution of power in three-phase networks is introduced next along with the requirements for measuring the real power consumed, is considerer next. Interconnection of AC grids by HVDC transmission is examined along with how to rectify and invert AC and DC power sources. Transmission of power by superconducting cables is introduced along with the storage of energy by super-capacitors. The course concludes by studying the operation of power electronics and PV cells.

1. Explain the operation of single and three-phase AC and DC electrical distribution networks.

2. Calculate power consumption in three-phase AC circuits, determine the power factor and specify how this can be corrected.

3. Identify and calculate the sources of inefficiency in power transmission equipment especially transformers and AC/DC converters.

4. Analyse electrical safety in the workplace, and how it can be improved using RCD and isolation transformers.

5. Develop simple spreadsheet models of electrical systems such as inverters and PV devices.