Power system using natural energy as driving force

Provided is a power system using natural energy as driving forces. The system comprises a converter which converts renewable energy sources into electric energy, an electricity storage device, and a magnetic transmission device. The system is characterized in that the renewable energy sources comprises wind energy, hydroenergy, solar energy, tidal energy, and geothermal energy, and the renewable energy sources are converted to electric energy through the converter and then are stored in the electricity storage device. The electricity storage device is connected with a low-voltage DC motor which drives the magnetic transmission device and drives working machines. The magnetic transmission device is a permanent magnet power engine. The power system using the natural energy as driving forces can adjust rotating speed of a magnetic power machine, and is high in efficiency, reliable in operation, and large in output power.