Link
Observed Impacts V2H Operation
Observed Impact V2H Systems Measurement
Techniques
Relevant
Standards/
Guidelines
EV-Induced
Harmonics
(3rd
, 5th
, 7th
Order)9
IEEE 519-
2022; IEC
61000-4-7;
EN
50160:2010
risking overheating. When multiple
chargers operate simultaneously,
harmonic summation can amplify
distortion beyond limits.
THD captured using
power quality
analyzers (per IEC
61000-4-x);
harmonic load flow
simulations
conducted in
DIgSILENT
PowerFactory for
multiple scenarios. These values
comply with IEEE 519-2022, which
recommends current THD limit of
≤5% the PCC for systems.
As per 50160:2010, “Under normal
operating conditions, the total THD of
the supply voltage shall not exceed
8% the fundamental frequency.”
While the PCC remained within this
threshold, Scenario (low EVCS
output injection), end-of-feeder
buses exceeded THD, posing
risks power quality and equipment
longevity. “Harmonic Impact Charging Station Prosumer-
Rich Distribution Feeders.
IEEE 519-
2022
(current
THD ≤5%);
IEC 61000-
4-7 (THD
definition)
Flicker
Index12
Rapid variations charging or
discharging power V2H systems can
cause short-term voltage fluctuations,
leading perceptible light flicker,
especially weak grids with LED
lighting.
These findings underscore that low-
power charging generates
disproportionately higher harmonic
distortion.
12
Newtons 4th Ltd.” Discover Applied Sciences no.PAGE VEHICLE-TO-HOME (V2H) SYSTEMS
HANDBOOK
101112
10
Rusan, Marko, Krešimir Fekete, Zvonimir Klaić, and Kristijan Čvek.” 2022 International Conference Smart Systems and Technologies (SST), IEEE, 2022.
THD evaluated at
PCC and along all
LV buses. “Electromagnetic Compatibility IEC61000-3-3:2013 Flicker Analysis. According IEC 60050-161,
flicker the "impression of
unsteadiness visual sensation.
Total
Harmonic
Distortion
(THD) V2G
(Discharging)1
1
During discharging (V2G), grid current
THD reduced <1.
WT1803E or
equivalent; harmonic
summation index (HSI)
as proposed lab
studies.23% when
EVCS operated low output power,
and 4. “V2G Based Bidirectional Charger
Topologies and Its Control Techniques: Review.03% high output power.5%, and in
some cases <1%, using advanced
control techniques like Model
Predictive Control (MPC) and Sliding
Mode Control (SMC).
11
Rana, Rahul, Tejinder Singh Saggu, Shimi Sudha Letha, and Farhad Ilahi Bakhsh.
Total
Harmonic
Distortion
(THD)-G2V
(Charging)10
During G2V operation, voltage THD at
the PCC increased from 3.
THD computed via
simulation of
SMC/MPC-
controlled V2G
converters; values
reflect idealized
system
performance.01%
(baseline, EVCS) 5.” Accessed May 23, 2025.
Evaluation involves
signal processing of
IEC 61000-
3-3:2013
(limits ≤16
A); IEC
61000-3-11
(conditional
connection,
>16 A);
." To
ensure user comfort and equipment
Assessed using flicker
meters conforming to
IEC 61000-4-15, which
calculate short-term
(Pst, min) and long-
term (Plt, hr) flicker
severity indices. 588 (2024)
