此​ 次​ 变​ 频​ 电​ 源​ 采​ 用​ 数​ 字​ 方​ 式​ 控​ 制​ ,​ 电​ 源​ 系​ 统​ 设​ 计​ 包​ 括​ 主​ 电​ 路​ 、​ 控​ 制​ 电​ 路​ 和​ 保​ 护​ 电​ 路​ ​ 并​ 给​ 出​ 了​ 系​ 统​ 原​ 理​ 图​ 和​ 程​ 序​ 清​ 单​ 。-The time variable frequency power source used for word type control, electrical source system design including main electrical path, control and protection of electric road And give out the system principle diagram and process sequence list.