On Implementation of Control Strategies for Wave Energy Converters Using An Active Rectifier

Ocean wave energy is one of the most promising renewable energy resources that were less explored due to their large-scale industrial limitations. Due to the technical constraints related to the experimental designs, this paper demonstrates a method to simulate a heaving wave energy converter and connecting it to electrical circuitry to rectify the induced voltage. This paper also demonstrates a method to implement control strategies in the wave energy converter (WEC) using the six switches in an active rectifier for controlling the current in a power-take-off device. This can be done by converting the control methods using field-oriented control. In this paper, two examples of control strategies are implemented, namely, resistive loading and approximated complex conjugate.