POWER CONTROL METHOD OF ALUMINUM ELECTROLYZING SYSTEM FOR NON-GRID-CONNECTED MULTI-ENERGY COLLABORATIVE POWER SUPPLY

摘要

A power control method of an aluminum electrolyzing system for non-grid-connected multi-energy collaborative power supply, the aluminum electrolyzing system comprising an aluminum electrolyzing device, a wind power generation device and a solar power generation device; the wind power generation device and the solar power generation device supply power for the aluminum electrolyzing device in a non-grid-connected manner, and the waste heat generated by the aluminum electrolyzing device is recycled to generate power to be supplied to an aluminum electrolytic cell; during the day, the public grid supplies the minimum power required by the aluminum electrolytic cell to operate with heat preservation, the power generated by the wind power generation device and the concentrating solar power generation device being supplemental; during the night, the limit is cancelled on public grid power supply to the aluminum electrolyzing device. The power control method can adapt to the fluctuation of wind power generation and solar power generation, improve economic returns of enterprises by fully utilizing the peak/valley electricity price difference of the pubic grid, and facilitate peak load regulation in the public grid so as to reduce the difficulty in peak load regulation caused by the great difference between peak load and valley load.