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A LINEARISED OPTIMAL MODULATION STRATEGY FOR A GTO CONVERTER TO ALLOW REAL-TIME CONTROL OF ACTIVE AND REACTIVE POWER FLOWS INTO A SMES SYSTEM
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| Author(s) |
Q. Jiang; D. B. Giesner; D. G. Holmes |
| Abstract |
This paper presents an improved PWM strategy for the control of a GTO bridge associated with a Superconducting Magnetic Energy Storage System. The method presented is to linearise an optimal modulation strategy so that the turn-on-periods of the GTO switches can be computed on-line in real-time for any specified modulation depth and phase angle. This allows rapid adjustment of both the real and reactive powers that flow between the bridge and the power system, while producing minimal ac line current low order harmonics. An additional computational stage has also been included into the system to allow the real and reactive power flows to be independently specified as an input to the bridge controller. The paper presents both theoretical and experimental results. |
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| Filename: | Unnamed file |
| Filesize: | 3.978 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-07 by System |
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