Harmonic Load Identification Using Complex Independent Component Analysis

Independent Component Analysis for Harmonic Studies

“…Also this algorithm can be extended to find the minimum set of measurements to reduce the measurements cost and increase estimation accuracy for the harmonic meter placement problem. Further analysis and research on the topic presented in this chapter is published in [26].…”

A novel method for power quality multiple disturbance decomposition based on Independent Component Analysis

“…As the spectrum of a sinusoidal signal is symmetric around the zero frequency, the factor 2 is necessary in (17). Substituting (14) in (17) and using the Euler's formula, the desired signal f[n], which is the real part of x 1 [n], can be written as:…”

“…Substituting (14) in (17) and using the Euler's formula, the desired signal f[n], which is the real part of x 1 [n], can be written as:…”

“…In [16], a new method of power quality comprehensive evaluation is proposed based on the use of improved-ICA to find out the weight of various indicators in the feature space, solving the ambiguous coupling problem in these indicators. In [17], an ICA-based method for harmonic source identification and estimation is proposed. If the harmonic currents are statistically independent, the ICA is able to estimate the currents using a limited number of harmonic voltage measurements without any knowledge of the system topology.…”

An enhanced method for contribution assessment of utility and customer harmonic distortions in radial and weakly meshed distribution systems

“…All the above mentioned methods focus on radial distribution systems, and cannot be accurately applied to weakly meshed distribution system which integrates distributed generations (DGs) and bus-tie circuit breakers in the system [10,11]. The commonly used methods for harmonic source localization in transmission systems are such as methods which apply harmonic state estimation (HSE) [12,13], weighted least square estimation (WLSE) [14] and independent component analysis (ICA) [15,16] which require costly measurements, exact knowledge about the system data and complicated calculations. This paper presents an improved method to estimate the location and contribution of harmonic sources in radial and weakly meshed distribution systems.…”