Book contents
- Frontmatter
- Contents
- Editors' note
- Foreword
- How to use this book
- Chapter 1 Wind-diesel system options
- Chapter 2 Matching the wind-diesel system to the community
- Chapter 3 Assessing the wind resource
- Chapter 4 Designing a system
- Chapter 5 Wind-diesel case studies
- Chapter 6 Modelling techniques and model validation
- Chapter 7 Installation and monitoring of wind-diesel systems
- Chapter 8 Assessing the economics
- Index
Chapter 4 - Designing a system
Published online by Cambridge University Press: 17 December 2009
- Frontmatter
- Contents
- Editors' note
- Foreword
- How to use this book
- Chapter 1 Wind-diesel system options
- Chapter 2 Matching the wind-diesel system to the community
- Chapter 3 Assessing the wind resource
- Chapter 4 Designing a system
- Chapter 5 Wind-diesel case studies
- Chapter 6 Modelling techniques and model validation
- Chapter 7 Installation and monitoring of wind-diesel systems
- Chapter 8 Assessing the economics
- Index
Summary
In Chapter 1 a description was given of what constitutes a typical wind-diesel system, and sample configurations were outlined. The purpose of this chapter is to expand upon this basic information by describing in detail the design constraints and considerations which apply to a wind-diesel system and to its various components.
To be effective and economically viable, wind-diesel systems must be optimised for each individual application. In particular both the characteristics of the host wind regime dealt with in Chapter 3 and the consumer load (Chapter 2) must be considered since both affect performance and method of operation.
SYSTEM OPERATION
Two major methods of system operation are possible, these involving running the diesel either continuously or intermittently. There are advantages and disadvantages to both methods.
Continuous diesel operation
This primary case has the advantage of technical simplicity and reliability since there is little difficulty in maintaining the continuity of supply, although care must be taken not to overload other generator sets in multiple diesel systems when some of the units are switched off. In general the operating diesel set(s), together with a dump load where required, maintain system voltage and frequency. The main limitations of this approach are low utilisation of wind energy, and correspondingly moderate diesel fuel savings. The former is especially noticeable for systems with a large wind component.
It is poor part-load performance of diesel engines, especially of smaller sets, which limits potential fuel savings.
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- Information
- Wind-Diesel SystemsA Guide to the Technology and its Implementation, pp. 95 - 138Publisher: Cambridge University PressPrint publication year: 1994
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