Steady-State Analysis of the Series Resistance-Inductance Circuit Controlled by Asymmetrical Triggering of Thyristors
- 1 July 1973
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. IA-9 (4) , 437-447
- https://doi.org/10.1109/tia.1973.349972
Abstract
The load waveforms produced by asymmetrical triggering of an inverse parallel connected pair of thyristors are of two categories. If each of the two firing angles α,β are greater than load phase angle ϕ, the load curtent consists of asymmetrical discontinuous nonsinusoidal pulses. For the case when firing angle ϕ is less than ϕ and satisfies the relationship β ⪕ 𝒳α. - π (where 𝒳α is the extinction angle corresponding to the other firing angle α), complete half-sinusoids of load voltage appear. Both modes of triggering result in load waveforms with even harmonic content, which are not present with symmetrical triggering.Keywords
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