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VOLTAGE ORIENTED CONTROL – SIMULATION

3 VOLTAGE ORIENTED CONTROL – SIMULATION 3.1 Introduction – References chosen

As we explain in the previous section, Voltage Oriented Control (VOC) or Virtual Flux Oriented Control (VFOC) should be chosen. We decided to start with a VOC.

Before going further in the design and simulation of the controller, we need to precise some important references chosen in this report.

3 PHASE SYSTEM DEFINITION

3

3

COORDINATE TRANSFORMATION

1

0

and

(2.10)(2.11)

  • 0

and

.

(3.1) (3.2)

You can refer to APPENDIX A for details. We only use AMPLITUDE INVARIANT in this thesis.

Indeed, after transformation from ABC to dq coordinates, the d components is equal to q component equal to zero.

, and the

POWER, CURRENT DIRECTION

We chose a reference as shown in the following schematic, the current is flowing from the grid to the rectifier.

Figure 3.1 Reference for I, P, Q

18

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