The performance of a 3-Phase Induction Machine under Unbalance Voltage Regime
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In industries, electric motors contribute a major percentage of electrical loads, and by implication, a major portion of the
generated electrical energy is consumed by electric motors, and it is therefore vital to ensure that these motors operate
with negligible energy loss. In operational environment, many factors can be responsible for a reduction in motor
performance. One of the major factors is a regime of voltage unbalance that affects the motor, the load and supply
network. Three phase induction motor studies can be carried out using methods such as real load test, finite element
analysis, flux linkage-current relations etc. A new model based on phase frame analysis has been developed for easy
computation of sequence components. This paper seeks to explore the performance of a 3-phase induction motor
operating under unbalance voltage conditions using the phase frame analysis. The results of this study established that
there are negative impacts of supply imbalance on the performance of three phase motor.
Keywords
TK Electrical engineering. Electronics Nuclear engineering