Details of Grant 

EPSRC Reference:	GR/K40925/01
Title:	ACONTROLLABLE, VARIABLE WAVEFORM, HIGH VOLTAGE POWER S UPPLY FOR ELECTROSTATIC PRECIPITATORS
Principal Investigator:	Lefley, Dr P
Other Investigators:	Fothergill, Professor J C
Researcher Co-Investigators:
Project Partners:	National Power Pre Nexus Migration
Department:	Engineering
Organisation:	University of Leicester
Scheme:	LINK
Starts:	21 August 1995	Ends:	20 November 1998	Value (£):	143,755
EPSRC Research Topic Classifications:	Power Electronics
EPSRC Industrial Sector Classifications:	Energy
Related Grants:
Panel History:
Summary on Grant Application Form
The project will design and build a single-ended high-voltage DC power supply using high-frequency inverter technology coupled to a ferrite core high-voltage transformer for use with electrostatic precipitators. Novel aspects of this design will include the use of ferrites for HV isolation, efficient transfer of energy across such a barrier, and operation at unity power factor. It is envisaged that such a power supply will be more controllable and versatile and lead to greatly improved supply and precipitator efficiency under a wide variety of operating conditions. The supply will be accurately characterised using a laboratory model precipitator and under a wide variety of conditions at National Power PLC. During the project, technique will be examined for pulsing the waveform in an efficent manner and, if sucessful, the effect of pulsing on precipitator performance will be observed. Finally the supplky will be tested on a fully-operational precipitator. The project will extend the existing research on precipitators at Leicester Uni. which aims to further both the theoretical understanding on precipitation and the proctical aspects of precipitator design. Upon sucessful completion, the project will enable manufacturers and users to meet increasingly stringent environmental legislation considerably more cheaper than with conventional equipment.
Key Findings
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Potential use in non-academic contexts
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Further Information:
Organisation Website:	http://www.le.ac.uk