High-frequency resonances occur frequently and severely disrupt the normal operation of high-speed railways in China. In order to suppress high-frequency resonances in traction power supply systems, a resonant harmonic elimination pulse width modulation (RHEPWM) technology was proposed. With this method, harmonics around the resonant frequency in the harmonic source were eliminated, and thus the resonance formation condition was broken and resonances were suppressed. A real-time simulation of RHEPWM application in high-speed railway system was realised in OP5600 RT-Lab simulator. The real-time simulation results show that the proposed RHEPWM strategy can achieve high-frequency resonance suppression, improve total power factor of traction drive systems, and reduce total harmonic distortion of pantograph currents.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.