Grid Connection of Wave Power Farm Using an N-Level Cascaded H-Bridge Multilevel Inverter

<table>Layout of the control system. The total DC-voltage of each phase leg is controlled by varying <svg height="18.4" id="M89" style="vertical-align:-5.73167pt" version="1.1" viewbox="0 0 11.225 18.4" width="11.225" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,-0,0,-.012,4.7,15.275)"><path d="M474 429q-19 -69 -47 -222l-65 -347q-8 -49 0 -60t49 -16l26 -3l-4 -26l-246 -12l4 25l17 3q37 6 50 20.5t23 60.5l67 321h-2q-65 -79 -150 -138q-69 -47 -104 -47q-28 0 -48.5 32t-20.5 81q0 78 35 148t90 117q67 57 161 77q23 5 58 5q43 0 90 -15zM387 387
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</svg> and thus the load angle to the grid voltage. The individual DC-voltages may be partially controlled by setting the order of conduction of the cascaded H-bridges.</table>

Journal of Electrical and Computer Engineering

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Figure 9

Figure 9: Grid Connection of Wave Power Farm Using an N-Level Cascaded H-Bridge Multilevel Inverter 