ENT775: Distributed Generation, System Design and Regulation

School Cardiff School of Engineering
Department Code ENGIN
Module Code ENT775
External Subject Code H630
Number of Credits 10
Level L7
Language of Delivery English
Module Leader Professor Liana Cipcigan
Semester Autumn Semester
Academic Year 2021/2

Outline Description of Module

  • To provide students with an understanding of the role of Distributed generation (DG) schemes in electrical energy networks.
  • To provide students with an overview of Distributed Generation techniques of network integration.
  • Introduce students to the concept of intermittent power sources and their contribution to capacity in electrical power systems.
  • Provide a detailed review of voltage control and fault studies of Distributed Generation schemes.

On completion of the module a student should be able to

  • Demonstrate understanding of the main components of an electrical distribution network.
  • Demonstrate detailed knowledge of the main concepts and principles relating to Distributed Generation schemes and their application to electrical energy networks.
  • Recognise the impact of Distributed Generation on network performance.
  • Explain the main features of protection systems used in the distribution networks with Distributed Generation.
  • Understand the technical and economic factors which should be taken into account when designing distribution network extensions, particularly for Distributed Generation.

How the module will be delivered

The module will be delivered through a blend of online teaching and learning material, guided study, and on-campus face-to-face classes (tutorials, feedback sessions).

Skills that will be practised and developed

  • Quantify the effect of Distributed Generation on voltage magnitude and fault levels.
  • Evaluate the major technical issues relating to the implementation of Distributed Generation schemes.
  • Identify methods used for overcoming voltage problems in networks with Distributed Generation.
  • Interpret the benefits that Distributed Generation may provide to a power distribution system.
  • Problem-solving specific problems associated with Distributed Generation.
  • Use computer software to solve load flows and fault calculations associated with Distributed Generation.
  • Exercise substantial independence and initiative in carrying out learning activities.
  • Manage time effectively, working with deadlines and prioritise workload.
  • Demonstrate independence in reporting and analysing results
  • Communicate and participate in group activity and discussions in a variety of tasks.
  • Professional awareness of the role and potential of Distributed Generation in electrical energy networks.

How the module will be assessed

There are two components:
Coursework (30%)
End of semester examination (70%)

The module pass mark is 50%.

There is a potential for re-assessment in this module which may result in a 100% written assessment during the August Resit period.

Assessment Breakdown

Type % Title Duration(hrs)
Written Assessment 30 Coursework N/A
Exam - Autumn Semester 70 Distributed Generation System Design And Regulation 2

Syllabus content

Distributed Generation (DG) Definition and Terminology. Classification of DG Technologies.

Distribution system components Generators
- Synchronous Generators
- Induction Generators
- Doubly-Fed Induction Generators (DFIG)

Wind Turbines
- The wind resource
- Wind Energy Conversion Systems WECS and their electrical generators

Power Control of Wind Turbines

Distribution Networks with Distributed Generation

Voltage Control of Networks with DG
- Managing the voltage rise effect by generation curtailment
- Managing the voltage rise effect by reactive compensation
- Managing the voltage rise effect using coordinated voltage control. Application of OLTCs and Voltage Regulators
- Voltage management services, Ancillary services

Impact of DG on network fault levels
- Fault Level contributions
- Major methods of fault level reduction

Network evolution
- Real and reactive power flow
- DG power flow management
- Ancillary services

Passive and active networks

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