Online insulation detection device for doubly-fed wind turbine generator

• Main Authors: ZHANG KAI, NIE SIYU, LI DECAI, CAI MEIYUAN, WANG SHIJUN, YANG JING, CHEN XUEMEI
• Format: Patent
• Language: Chinese; English
• Published: 01.01.2021
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

The utility model provides an online insulation detection device for a doubly-fed wind turbine generator. The online insulation detection device comprises a generator, a converter, a main control system and a data acquisition and monitoring control system, the converter is used for sending an excitation signal to the generator, acquiring a detection signal fed back by the generator and transmitting the detection signal to the main control system; the main control system is used for controlling the switching of working modes of the converter; the processor is also used for receiving detection signals and transmitting the detection signals to the data acquisition and monitoring control system; the data acquisition and monitoring control system is used for storing, analyzing and judging the detection signals, identifying insulation faults possibly existing in the generator and carrying out early warning; the technical problems that in the prior art, the insulation performance of a generator winding cannot be det