Table 7 Quantitative assessment of transient performance under step change of reactive power
Mode of operation | Parameter | Value | |
|---|---|---|---|
Fixed weight factors | Variable weight factors | ||
Step change in reactive power (Qref 0 → 10 kVAR) (Pref is zero W) | Settling time [ms] | 1.57 | 0.42 |
Max. │cross coupling on P│ [kW] | ≅ 2.70 | ≅ 0.01 | |
Peak overshoot of Q | nil | nil | |
Weight factor wp | 1 | 1 | |
Weight factor wq | 1 | 0.04 | |
Steady state PF (after settling time) | ≅ 0.010 | ≅ 0.010 | |
Worst PF during cross coupling | ≅ 0.269 | ≅ 0.011 | |
THD of current (after settling time) [%] | ≅ 3.120 | ≅ 3.120 | |