Patent ID: 11962251
Assignee: GE ENERGY POWER CONVERSION TEHCNOLOGY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A hybrid modular multilevel converter (HMMC) based on a neutral point pilot (NPP) topology and having an ABC N-phase structure, comprising N pairs of identical upper and lower arms, each upper and lower arm being composed of X submodules and Y sets of switches;
wherein the switches within each set are cascaded and connected in series and (ii) external to the submodules;
wherein each of the submodules is formed of full-bridge silicon (Si) insulated-gate bipolar transistor (IGBT) converters and a smoothing capacitor; and
wherein at least one of the set of switches is formed of IGBTs of opposite polarities.