Hyundai, which builds ships, turnkey power plants and high-voltage electrical equipment, will use the systems in 1.65 megawatt wind turbines.
It will produce the turbines under a license from an American Superconductor subsidiary, AMSC Windtec.
American Superconductor will ship the electrical systems by the end of January 2010. The company did not disclose terms of the deal.
Shares of American Superconductor rose $1.04, or 3.5 percent, to $30.71 in early trading. The stock has shot up 82 percent since the start of the year.