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The wide-band frequency electro-magnetic (EM) noise is generated during turn-on and turn-off processes of thyristor valves in converter stations. It will be conducted along the primary circuitry, and may interfere with secondary systems by the way of conducted and radiated coupling. The plusmn800-kV UHVDC transmission project is one of newly developed technique and used barely in the world. The electro-magnetic...
Transient processes are generated by operations of disconnect switches and circuit breakers in the AC side of converter stations. Several trips in different plusmn500-kV HVDC converter stations in china happened recently. Characteristics of transient Electromagnetic Interference due to switching operations are summarized based on onsite tests in a practical converter station. Measurements are performed...
The wide-band frequency EM noise is generated during the processes of firing and turn-off of thyristor valves in converter stations. It will be conducted along the primary circuitry, and may interfere with secondary systems by the way of conducted and radiated coupling. The plusmn800-kV UHVDC transmission project is one of newly developed technique and used barely in the world. The EMI problem is...
HVDC transmission lines system has some advantages, but it can generate an effect on the environment nearby due to the corona, especially the ionized field. Based on the electromagnetic field theory, a simple method to analyze the ionized field generated from the bundled conductors of bipolar lines is proposed. And then, after the validity of the method is testified, some examples are analyzed and...
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