Method for improving stability of doubly-indeed DC system
A DC system, double-feed technology, applied in the direction of DC network circuit devices, electrical components, circuit devices, etc., can solve problems such as AC bus voltage fluctuations, and achieve the effect of improving operating characteristics
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[0022] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.
[0023] figure 1 It is a schematic diagram of the structure of a double-fed DC system with different landing points including a static synchronous compensator subsystem. In this embodiment, the two grid-commutated high-voltage DC subsystems of the double-infeed DC system are respectively denoted as the first grid-commutated high-voltage DC subsystem LCC-HVDC 1 And the second grid commutation HVDC subsystem LCC-HVDC 2 . Such as figure 1 As shown, the static synchronous compensator subsystem STATCOM is added to the double-infeed DC system, and the static synchronous compensator subsystem STATCOM and any one of the two grid-commutated HVDC subsystems are directly connected in parallel to the same AC bus. Without loss...
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