Special energy-saving type filtering compensation energy feedback device for oil field pumping unit

• Main Author: DOU JINXING
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model discloses a special energy-saving type filtering compensation energy feedback device for an oil field pumping unit, which comprises a power grid, a rectifier bridge connected with the power grid through an input reactor, and an oil field pumping unit frequency converter electrically connected with the rectifier bridge through a direct current bus, the SVG is of an IGBT structure;the direct current input end of the SVG is electrically connected to a direct current bus through a fuse. The inversion alternating current output end of the SVG is directly connected to a power gridin parallel through an output reactor. And a detector of the SVG is electrically connected between the input reactor and the power grid. According to the energy-saving type filtering compensation energy feedback device special for the oil field pumping unit, inversion energy feedback is carried out through the SVG, filtering compensation of a power grid is completed at the same time, and harmonicwaves are eliminated; corr