Diesel generator control system and method based on bypass relay

• Main Authors: FENG HONGFENG, YUAN QIYU
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention relates to a diesel generator control system based on a bypass relay, which comprises an alternating current power grid, an inverter, a relay, a load and a diesel generator set, and is characterized in that grid-connected operation of the system is realized through connection of the inverter and the power grid; off-grid operation of the system is achieved through connection of the inverter and the diesel generator set. Wherein the diesel generator set is controlled by a bypass relay; the seamless switching between the off-grid state and the grid-connected state is realized by sampling the voltage of the port of the diesel generator set. According to the method disclosed by the invention, the operation of the diesel generator set is controlled through the relay, so that grid-connected and off-grid seamless switching can be realized in a relatively small overshoot and a relatively short time, and the load of a user or an important load can be ensured not to be influenced by a mains supply fault or