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A 21-level (line-to-line) BTB system based on series connection of sixteen converter-cells for power flow control: experimental verifications by a 200-V, 10-kW laboratory system

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3 Author(s)
Hagiwara, M. ; Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan ; Fujita, H. ; Akagi, H.

A 21-level (line-to-line) self-commutated BTB (back-to-back) system based on series connection of sixteen converter-cells has attractive features as follows: i) Both active and reactive powers can be controlled independently even in transient states, ii) The BTB system produces almost sinusoidal voltage at the AC side without performing PWM (pulse-width-modulation) control, so that no harmonic filter is required, iii) The BTB system provides an active-power response as high as 3 ms. This work presents experimental verifications of the self-commutated BTB system for the purpose of achieving power flow control in transmission systems. Experimental results obtained by a 200-V 10-kW laboratory prototype confirm effectiveness and validity of both the proposed system configuration and control strategy developed in this paper.

Published in:

Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE  (Volume:3 )

Date of Conference:

3-7 Oct. 2004