About 22 results
https://drivepatents.com/patents/993519 · 23 Jan 2013
A system (100) for controlling voltage on a distribution feeder (106) includes a plurality of capacitor banks (102a-102n) that can be connected to or disconnected from the distribution feeder. A first bank is configured to connect to the distribution feede...
https://drivepatents.com/patents/994019 · 9 Jan 2013
The arrangement has a photovoltaic generator (1) connected with input terminals of an inverter (3) via a switching device (29), where an output of the inverter is connected with a supply network (12). An asynchronous machine (7) is connected parallel to th...
https://drivepatents.com/patents/996411 · 31 Oct 2012
Certain embodiments of the invention may include systems, methods, and apparatus for providing coordinated voltlVAR control in power distribution networks. According to an example embodiment of the invention, a method is provided for coordinating voltage a...
https://drivepatents.com/patents/997410 · 10 Oct 2012
The present invention discloses a method and an apparatus for power control. An apparatus for power control in accordance with an embodiment of the present invention can include: a voltage comparing part configured to compute an error voltage by using a me...
https://drivepatents.com/patents/998551 · 5 Sep 2012
The method involves sensing a currently prevailing voltage as a voltage measurement at the network connection points (15a-15c) and ascertaining a reactive power draw or a reactive power delivery by a power generator e.g. photovoltaic system (PV1) using a l...
https://drivepatents.com/patents/999155 · 22 Aug 2012
The invention describes a solar generation method involving a system (1) that comprises a set of solar cells (2) connected to an inverter (4), which transmits the energy generated to an electrical grid (6), which comprises controlling the active and reacti...
https://drivepatents.com/patents/1001367 · 13 Jun 2012
The device has a voltage measuring unit (6) determining voltage value on a network node (5) of a lowest voltage level (3). A computing unit (7) computes an amount of reactive power requirement depending on voltage value that is determined by the voltage me...
https://drivepatents.com/patents/1003584 · 11 Apr 2012
It is an object to supply stable reactive power without requiring large-scale civil engineering work. The invention provides a utility grid stabilization apparatus 2 to be applied to a generating system including a generator having a squirrel-cage inductio...
https://drivepatents.com/patents/1004289 · 21 Mar 2012
It is an object to reliably and swiftly restore voltage of a utility grid, which decreased due to a utility grid failure or the like, to reference voltage. A generating apparatus includes: a generator connected to a utility grid; a voltage detecting sectio...
https://drivepatents.com/patents/1014908 · 16 Mar 2011
A method employing a lead-unity-lag adjustment on a power generation system is disclosed. The method may include calculating a unity power factor point and adjusting system parameters to shift a power factor angle to substantially match an operating power ...