Research Article
Enhancing LVRT Capability of DFIG-Based Wind Turbine Systems with SMES Series in the Rotor Side
Table 1
Cost comparison for the storage technologies.
| ESD | Capacity | Life | Power cost ($/kW) | Energy cost ($/kWh) |
| Pumped-hydro storage | 100–2000 MW | >20 years | 2000–4300 | 10–100 | Compressed-air energy storage | 100–300 MW | >20 years | 400–1000 | 2–50 | Flywheel energy storage | 5 kW–1.5 MW | >15 years | 250–350 | 1000–10000 | Lithium-ion batteries | 1–1000 kW | 3000 cycles | 1000–3000 | 1000–3800 | Supercapacitors | 1–100 kW | >50000 cycles | 100–300 | 300–2000 | Superconducting magnetic energy storage | 10–500 kW | >20 years | 200–400 | 500–1000 | Vanadium redox battery | <10 MW | 10–30 years | 600–1500 | 150–1000 |
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