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This subject provides an insight into the fundamental elements to analyse electrical power transmission and distribution systems, with both analytical and simulation tools for analysis of operations of these systems. Problems related to power flow and use of Newton-Raphson and other algorithms such as backward-forward sweep will be discussed. Fault calculation and analysis, symmetrical components, and analytical methods for solving symmetrical (balanced) faults will be covered. Principles, concepts and problems related to power system dynamics and control, particularly for frequency and voltage regulation, will be discussed and analysed in detail. Finally, small-signal, transient, voltage and frequency stability will be introduced and exemplified. Focus will be put on real-world examples, particularly to prepare the student for the ongoing transition towards a low-carbon grid dominated by renewables and distributed energy resources.
- Power flow calculations, Newton-Raphson, Gauss-Seidel and backward-forward sweep methods;
- Fault calculations, balanced and unbalanced, symmetrical components, fundamentals of protection;
- Frequency regulation and frequency stability,
- Voltage regulation in transmission and distribution networks, including use of flexible AC transmission systems (FACTS);
- Voltage stability, small-signal stability, transient stability;
- Computer simulations.
Intended learning outcomes
Having completed this unit the student is expected to:
- 1. Interpret the behaviour of the basic components of power systems
- 2. Compute power flow in transmission systems
- 3. Compute fault quantities, such as voltage, current and power in transmission systems under normal and fault conditions
- 4. Ascertain the stability of power systems from operating conditions
- 5. Use software tools to simulate and study the steady-state and dynamic behaviour of electrical power systems
Upon completion of this subject, students will have developed the following skills:
- Ability to apply basic fundamentals of science and engineering to solve real life problems associated with power systems;
- Ability for in-depth technical competence in power systems engineering discipline;
- Ability to identify, formulate, analyse and solve practical engineering problems;
- Capacity for independent critical thought, rational assessment and self-directed learning;
- Ability to communicate and work effectively with teams;
- Ability to write technical reports in a clear and concise manner;
- Ability to present results of technical investigation to a large audience.
Last updated: 10 November 2023