| EPSRC Reference: |
GR/R64452/01 |
| Title: |
A new concept for multidrive systems:Independent control of a set of motors supplied from a common inverter |
| Principal Investigator: |
Levi, Professor E |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Engineering Tech and Maritime Operations |
| Organisation: |
Liverpool John Moores University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 June 2002 |
Ends: |
31 May 2005 |
Value (£): |
201,589
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| EPSRC Research Topic Classifications: |
| Electric Motor & Drive Systems |
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| EPSRC Industrial Sector Classifications: |
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Summary on Grant Application Form |
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Many industrial applications require more than one variable speed drive, that have to be controlled independently. It is therefore necessary to equip each motor with its own VSI as the controllable power source. Multi-drive system is then realised by using one mains rectifier, a common DC link and a certain number of inverters (equal to the number of drives) that are operated from the same DC link and independently controlled. The main idea of this project is to propose a novel concept for a multi-drive system, in which only one voltage source inverter is used, although more than one machine is supplied. The requirement for independent control of the drives is retained by selecting vector control as the specific control method for each machine. The idea requires that the inverter and the machines have a phase number that is greater than three. It appears that two five machines can be operated from a single five-phase VSI, three seven-phase machines can be controlled independently using a seven-phase VSI, etc. The concept is applicable to all the types of AC machines. It is intended to at first theoretically develop this novel concept of a multi-drive system and to examine its characteristics by simulation. This will require development of appropriate vector control algorithms and methods for multiphase inverter control. A set of three multiphase machines will be designed and manufactured, using standard three-phase machines as the starting point. The complete multi-drive control algorithm will be implemented in DSP hardware, the laboratory test-rig will be built, and the performance of the system will be evaluated experimentally.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.livjm.ac.uk |