Nanyang Technological University

Howe Li Yeo

Anshuman Tripathi

Gil Lampong Opina, Jr

Abishek Sethupandi

Madasamy Palvesha Thevar

Fengjiao Cui

Brihadeeswara Sriram Vaisambhayana

Radhika Sarda

Haonan Tian

Glen Ghias Farivar

A controller system reduces destructive harmonic content within a power network system, the power network system comprising one or more distributed energy resources, one or more distributed inverter systems, one or more nonlinear loads, and a bus coupling the one or more distributed energy resources to the one or more nonlinear loads. The controller system comprises one or more sensors; one or more hardware processors; and memory storing computer instructions, the computer instructions when executed by the one or more hardware processors configured to perform receiving, by the one or more sensors, sensor data indicative of destructive harmonic content of a particular order on the bus; and using a particular distributed energy resource and a particular distributed inverter system to inject constructive harmonic content to reduce the destructive harmonic content.

Systems and methods for reducing harmonic content in a power network having distributed energy resources and distributed inverter systems

A decoupled system for controlling a solid state transformer (SST), the SST comprising an AC-to-DC stage, a DC-to-AC stage, and a DC-to-DC stage, the DC-to-DC stage comprising one or more DC-to-DC converters. The system comprises a stored energy controller coupled to the AC-to-DC stage, the energy controller configured to control the total amount of stored energy within the capacitors of the SST; a power flow controller coupled to the DC-to-AC stage, the power flow controller configured to control power flow in the SST; and one or more energy balancing controllers each coupled to a corresponding DC-to-DC converter, each energy balancing controller configured to balance energy in the corresponding DC-to-DC converter.

Solid state transformer controller

Growing community of inventors

Singapore, Singapore

Howe Li Yeo