MODULAR UNIT FOR MONITORING OF ELEMENTS OF ASYNCHRONOUS MACHINE FOR IMPROVING RELIABILITY DURING OPERATION.

To ensure the reliable operation of asynchronous machine, the most effective is to use modern monitoring systems for current monitoring of the state of the main engine elements. This work presents research and developpment of a structural diagram of a modular unit for monitoring the appearance and development of the most frequent and difficult to diagnose types of defect to the main structural elements of the engine. The developed modular unit allows simultaneous monitoring of the presence of inter-turn short-circuits of the stator winding and the integrity of the structure of the short-circuited rotor winding. In the work of the monitoring unit Park's vector approach is used. When conducting research and developing algorithms for the operation of the modular unit, the possibility of accurately determining the degree of damage to the specified defects in the event of a violation of the quality of the engine power supply system was taken into account, which is very important for real-life conditions of use. The obtained results are ready for practical use in the development of new or improvement of existing monitoring systems for monitoring the condition of asynchronous machine under load with a possible poor-quality power supply system. [ABSTRACT FROM AUTHOR]