FEASIBILITY STUDY OF HIGH-TEMPERATURE SUPERCONDUCTORS POSSIBLE APPLICATION FOR LONG-DISTANCE ENERGY TRANSFER

This article discusses possible application of cable power lines with hightemperature superconductors for long-distance energy transfer. On the basis of feasibility study, the preferred application of common electric transmission lines and superconducting electric transmission lines has been determined as a function of transferred power to distance ratio. Superconducting electric transmission lines are preferable for short distances and for power over 600 MW for distances over 500 km. Authors show that application of high-temperature superconductors for energy transmission over long distances is quite feasible, and that the high-temperature superconducting / conventional cable cost ratio can be reduced from 100 to 5–6. The authors have identified a field of possible application of high-temperature superconducting cables for long-distance energy transfer