Sparq Systems Inc.

Transient Plasma Systems, Inc.

Arpan Laha

Praveen Jain

Majid Pahlevaninezhad

Suzan Eren

Haibo Zhang

Omid Salari

Abirami Kalathy

Systems and methods relating to controlling power from renewable power sources. There is provided a control system that uses a non-linear controller for controlling currents in a DC/AC inverter especially when the DC/AC inverter is providing PV power to a 3-phase motor when the system is in an off-grid mode. In on-grid mode, a power grid is coupled to the DC/AC inverter and the control system provides MPPT to provide PV power to the grid. In off-grid mode, the grid is not coupled to the DC/AC inverter. The non-linear controller is based on differentiable manifolds that are also Lie groups. In off-grid mode, this non-linear controller finds the correct phase and frequency for the inverter current for the motor. The frequency is the output of the Lie group-based controller and is generated based on the voltage and current vectors of the motor.

Systems and methods for controlling a DC/AC inverter for use with an electric motor or an AC grid

A DC-DC power converter employs a full bridge series resonant converter topology with a resonant tank and two transformers, one before and one after the resonant tank, to obtain a high voltage (e.g., approximately 300V, approximately 1500V or greater) output from a relatively low voltage (e.g., approximately 9V-16V) input, for instance an input from one or more battery cells. DC-DC power converter is operable to output high voltage (e.g., around 300V, 1500V or higher) short duration pulses (e.g., tens of nanoseconds or less). A burst mode control technique provides as good regulation characteristics at light loads. Instead of turning OFF the active switches during an OFF period, the switches are operated at a different frequency (e.g., higher frequency) during the OFF period than a frequency at which the switches are turned ON during the ON period. Auxiliary loads can also be supplied.

Power converter comprising series resonant converter(s) having a full-bridge series resonant topology and methods of operating same

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Kingston, Canada

Arpan Laha