Global Variable Speed Generator Market By Type (By Generator Type , Variable Speed-Self Excited Induction Generator (SEIG) , Doubly Fed Induction Generator (DFIG) , Wound Rotor Induction Generator (WRIG) , Permanent Magnet Synchronous Generator (PMSG) , By Technology Type , Power Electronics Based Variable Speed Generator , Mechanical Variable Speed Generator , By Power Rating , Up To 100 kVA , 100 kVA?1 MVA , and 1?25 MVA ), By Application (Renewable Power Generation , Hydroelectric Power Generation , Marine and Shipbuilding , Oil & Gas and Mining , Commercial and Residential , and Others), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029