Thyristor full-bridge energy consumption module for inhibiting LCC-HVDC commutation failure
An LCC-HVDC, commutation failure technology, applied in the field of thyristor full-bridge energy dissipation modules, can solve problems such as commutation failure, and achieve the effect of extending service life, improving the ability to resist commutation failure, and improving stability
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[0029] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0030] The invention provides a thyristor full-bridge energy consumption module that suppresses LCC-HVDC commutation failure, such as figure 1 As shown, the device is connected in series in the bridge arm of the converter valve on the inverter side of the HVDC transmission system.
[0031] Such as figure 2 As shown, each module consists of capacitors, resistors and consists of thyristors. The thyristor full bridge is composed of four groups of thyristors, and the four thyristor groups are composed of several thyristors connected in series. Group 2; the cathode of the upper thyristor of the first thyristor group in the thyristor full bridge is connected to the anode of the lower thyristor of the first thyristor group, and the cathode of the upper thyristor of the second thyristor group is connected to the anode of the lower thyri...
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