UDQ STATCOM APF 1P

Single phase STATCOM and active power filter control in synchronous reference frame

Single phase STATCOM inverter is driven using Sine PWM. The sine references are generated using a PLL and Harmonic oscillator. The closed loop control is implemented in synchronous reference frame using unbalanced d-q control.
The inverter is supplying harmonics and reactive power to the loads, such that the power drawn from the grid is at unity power factor.
Non-linear current drawn by the loads is measured and the harmonics information thereby extracted is used in synchronous reference frame for compensation.