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  ______     ___     ______    __   __   __   __  
 /_____//   / _ \\  |      \\  \ \\/ //  \ \\/ // 
 `____ `   / //\ \\ |  --  //   \ ` //    \   //  
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 `__ `    |_||  |_|||______//    |_||    /_//\_\\ 
 /_//     `-`   `-` `------`     `-`'    `-`  --` 
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Text this: Reliability- and cost-based redundancy design for modular multilevel converter