A method for probabilistic harmonic load-flow analysis in power systems

✍ Scribed by M. Lehtonen

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 384 KB
• Volume: 8
• Category: Article
• ISSN: 1430-144X
• DOI: 10.1002/etep.4450080108

✦ Synopsis

A new probabilistic method is presented for the harmonic load-flow analysis in electrical power systems. In the method, the network is modelled using the bus impedance matrix at each harmonic order. The loadflow is solved by a current injection method. For harmonic sources, the amplitude variation and the phase angle variation are taken into account. For the summation of the harmonics originating from different sources, a probability density function, derived from the jointly normal distribution is used. As a final result, statistical estimares are obtained for the node voltages and branch currents of each harmonic frequency considered.