Statistical Analysis of Voltage Unbalance Emission Due to Asymmetrical Loads in Three-Phase Power Systems

This paper investigates the statistical properties of voltage unbalance factor in a three-phase system due to an asymmetrical load with uncertain parameters. The parameters are treated as random variables Gaussian distribution. Random asymmetry results values factor. probability density function, cumulative distribution mean value and variance derived closed form numerically validated. obtained useful provide quantitative description possible effects such connection large single-phase load.