Application of generalized resonance theory in reradiation interference from UHV power lines

Based on the electric field research, IEEE can´t give the resonance mechanism of reradiation interference (RRI) from power lines above 1.7MHz frequency. In order to solve this problem, the generalized resonance theory is introduced, and a method based on the electromagnetic (EM) energy balance theory is proposed to predict the RRI resonant frequency. Firstly, take the large-scale space consisted of ultra high voltage (UHV) power lines and antenna arrays as the generalized closed system. Then based on the complex Poynting theory, the expression of EM open systems´ generalized resonance factor is derived, and the RRI resonant frequency corresponds to the zero point of the generalized resonance factor´s imaginary part. Take the case researched by IEEE as an example, the results shows that the maximum deviation of the resonant frequency between the calculation values predicted by the generalized resonance theory and the measurement values given by the scaled model experiment are less than ±0.169MHz below 1.7MHz frequency.