How can we calculate the number of thyristors per valve in hvdc converters?

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Why the battery connected on the load side for storing purpose is taking the volatge /current at whatever rating it is given in matlab simulation?

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Bhupendra Desai

Series connected thyristors modules(column) are used for voltage control and parallel connected(raw) are used to controlled the current. Current carrying capecity of module(valve) decides the number of parallel path, or number of thyristor needed in raw, and voltage capecity, of module the needed in column....

Kiran Kumar Challa

Number of modules or valves = Operating voltage of converter / voltage rating of each module.

Normally the number pairs will be six to twelve...