Table 10 Harmonic mitigation strategies.
From: Analysis of multidimensional impacts of electric vehicles penetration in distribution networks
Ref | Solutions | Solution nature | Results | |||
|---|---|---|---|---|---|---|
A genetic Algorithm (GA) based approach was used to optimally reduce the THDs by coordinated dispatch of EVs and wind generators (WGs) | Software | Before | After | |||
THDv | Vab | 5.91% | 3.72% | |||
Vbc | 6.80% | 4.04% | ||||
Vca | 5.84% | 3.73% | ||||
An improved proportional quasi resonant (IPQR) controller was added to block the path of the DC bus voltage ripple affecting the grid harmonic currents | Hardware | Before | After | |||
THDi | Grid Current 1 | 12.6% | 3.3% | |||
Grid Current 2 | 11.8% | 2.9% | ||||
Grid Current 3 | 12.4% | 3.9% | ||||
For harmonic suppression, Active Power Line Conditioners (APLCs) were tested | Hardware | Before | After | |||
THDi | 12% | 3% | ||||
PV system installed at the charging station where the PV inverter operates as an active filter to compensate for high order harmonics | PV inverter involvement | Before | After | |||
THDi | 12.2% | 4.1% | ||||
THDv | 11.4% | 5.6% | ||||
Optimal harmonic power flow algorithm was proposed to determine the optimal dispatch of the harmonic currents from PV-based DGs to mitigate the impacts of EV harmonic currents | Software | Before | After | |||
THDi | 15.27% | 11.6% | ||||
THDv | 7.39% | 4.5% | ||||
A Lyapunov-based proportional integral with anti-windup (PI with AW) control was proposed for harmonic compensation with minimum DC-Link voltage oscillations | Software | Before | After | |||
THD | Grid Current 1 | 7.15% | 2.97% | |||
Grid Current 2 | 5.73% | 3.15% | ||||
Grid Current 3 | 3.15% | 2.02% | ||||
