TY - JOUR
T1 - Grid Influences from Reactive Power Flow of Photovoltaic Inverters with a Power Factor Specification of One
AU - Spring, Andreas
AU - Wirth, Georg
AU - Becker, Gerd
AU - Pardatscher, Robert
AU - Witzmann, Rolf
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/5
Y1 - 2016/5
N2 - This paper discusses the influence of unintended reactive power flow caused by photovoltaic (PV) inverter systems with a power factor specification of one on the grid voltage and grid loss. In theory, the apparent power feed-in of these PV systems should be equal to the active power feed-in. Observations in distribution grids have shown a reactive power flow caused by these systems. The main purpose is, if this influence has to be considered in grid planning and power system management in smart grids. Therefore, measurement data of several low voltage grids is used. Three different scenarios for the unintended reactive power are simulated. Under normal operating conditions, the unintended reactive power is not relevant. Nevertheless, if voltage or overload problems are not explainable, they can be a result of the unintended reactive power flow. This approach is very helpful for network operators to locate and understand the reasons for grid problems.
AB - This paper discusses the influence of unintended reactive power flow caused by photovoltaic (PV) inverter systems with a power factor specification of one on the grid voltage and grid loss. In theory, the apparent power feed-in of these PV systems should be equal to the active power feed-in. Observations in distribution grids have shown a reactive power flow caused by these systems. The main purpose is, if this influence has to be considered in grid planning and power system management in smart grids. Therefore, measurement data of several low voltage grids is used. Three different scenarios for the unintended reactive power are simulated. Under normal operating conditions, the unintended reactive power is not relevant. Nevertheless, if voltage or overload problems are not explainable, they can be a result of the unintended reactive power flow. This approach is very helpful for network operators to locate and understand the reasons for grid problems.
KW - Distributed power generation
KW - inverters
KW - photovoltaic (PV) systems
KW - power system measurements
KW - power system reliability
KW - reactive power
KW - smart grids
KW - solar power generation
KW - voltage control
UR - http://www.scopus.com/inward/record.url?scp=84926217656&partnerID=8YFLogxK
U2 - 10.1109/TSG.2015.2413949
DO - 10.1109/TSG.2015.2413949
M3 - Article
AN - SCOPUS:84926217656
SN - 1949-3053
VL - 7
SP - 1222
EP - 1229
JO - IEEE Transactions on Smart Grid
JF - IEEE Transactions on Smart Grid
IS - 3
M1 - 7072554
ER -
