关键词: 太阳能电动汽车；电驱重构；并网逆变器；六相永磁同步电机

Abstract: In recent years, solar electric vehicle, with their extended driving range, have garnered widespread attention. To further expand the application of onboard photovoltaic panels in solar electric vehicles and reduce the operational costs associated with their usage, a six-phase electricdrive reconstructed onboard photovoltaic grid-connected inverter is proposed. This inverter facilitates the transmission of energy harvested by the onboard photovoltaic panels into the grid without requiring additional power electronic devices. The paper analyzes the conditions necessary for zero electromagnetic torque in the asymmetric six-phase permanent magnet synchronous motor (ASPMSM). By reusing components such as the inverter, motor stator windings, and current sensors from the electric vehicle's propulsion system, a circuit topology and control strategy for a zero electromagnetic torque six-phase electric-drive reconstructed onboard photovoltaic grid-connected inverter are proposed. Additionally, experimental studies conducted on a 660 W prototype platform are presented, which hold significant implications for enhancing the driving range of electric vehicles and reducing operational costs.

Key words: Solar electric vehicle; Electric-drive reconstructed; Grid-connected-inverter; Six-phase permanent magnet synchronous motor