Hybrid direct current (DC) power transmission system based on line commutated converter (LCC)-alternate arm converter (AAC) type
A power transmission system, hybrid DC technology, applied in the direction of AC network voltage adjustment, power transmission AC network, reactive power compensation, etc.
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[0022] The present invention provides a hybrid DC power transmission system based on LCC-AAC; the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 The hybrid HVDC power transmission system shown includes a sending-end converter station and a receiving-end converter station; the sending-end converter station is an LCC system composed of a sending-end AC system and an LCC converter device; The AAC system composed of the system and the AAC converter; the DC side of the LCC system is correspondingly connected to the DC side of the AAC system through a DC transmission line.
[0024] The LCC system consists of a sending-end AC system, a sending-end converter transformer T S1 , LCC converter device, AC switch, sending-end AC filter ACF1, reactive power compensator, smoothing reactor L, control protection device and DC line; it is the rectification side of the hybrid DC transmission system; the AC end...
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