Study of Resonances in 1 $\times$ 25 kV AC Traction Systems With External Balancing Equipment
| Autor: | Luis Sainz, Lluis Monjo, Nadhir Mesbahi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry 020209 energy Electrical engineering Energy Engineering and Power Technology Resonance 02 engineering and technology Harmonic analysis Nonlinear system 0202 electrical engineering electronic engineering information engineering Harmonic Pantograph Electrical and Electronic Engineering business Electrical impedance Electronic circuit Voltage |
| Zdroj: | IEEE Transactions on Power Delivery. 31:2096-2104 |
| ISSN: | 1937-4208 0885-8977 |
| Popis: | AC traction systems are 1 $\times$ 25 or 2 $\times$ 25 kV/50 Hz single-phase, nonlinear, time-varying loads that can cause power-quality problems, such as unbalanced or distorted voltages. To reduce unbalance, external balancing equipment is usually connected to these systems, forming the Steinmetz circuit. Parallel resonances can occur in these types of circuits, exciting the harmonic emissions (below 2 kHz) of railway-adjustable speed drives. This paper studies these resonances at pantograph terminals and provides analytical expressions to determine their harmonic frequencies. The expressions are validated from several traction systems in the literature and PSCAD simulations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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