VSC-HVDC protection principle and configuration means and system of traditional dc transmit electricity are very similar, can divide roughly protect to communicate side, change stream implement protection and dc side protection.

Communication side protection includes: Communicate bus protection, communicate filter protection, change stream change protection, join reactor protects ……

Dc side protects: Dc generatrix is protected, dc filter is protected, trolly wire or cable protection and fixed position ……

Change stream implement protection: Protective core, had had voltaic protection, overvoltage protection, short circuit of a powerful person is protected, voltaic differential is protected, cooling system is protected.

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