Simulating the Operation States of Inhomogeneous Electromechanical Systems

Abstract

A complex solution to the problem of reliability of electrical equipment implies formulating and solving a number of scientific problems. In the scientific support of the efficient operation of asynchronous electric motors (AEM) there are two generalized scientific problems. Developments in the field of the strategies and criteria of efficient operation, termed Problem 1, are based on statistical information and mathematical simulation of operation states. Research in the field of the implementation of the adopted operation strategy, referred to as Problem 2, must be based on the latest information on the current health of each AEM and the risk of its further operation. The paper reflects the results of developing methods and means for simulating the AEM operation states for Problem 1. In the general case, An AEM is an inhomogeneous electromechanical system, whose inhomogeneity manifests itself during service aging. The paper states that the methods and means being developed for the simulation of AEM operation states must represent the current health of the object with due regard for its service aging. The tool of Kolmogorov equations used for the simulation enables one to represent a current health of the object. An example of practical simulation is given. The probability of AEM failure should be treated as the relative value of the maximum element of the current deviation matrix. For systems with service aging, the state probability bounds must be associated with the attainment of the limit state by the object and its removal from service.