Modular power conversion system
AssigneeDEKA Products Limited Partnership
InventorsDonald J. Lucas, Christopher L. Barber, Xiaorong Xia
Life of this patent
Estimating the term…
Abstract
A method for determining when a connection of a power system to a grid has been disconnected. The method includes the power system supplying a first amount of reactive power to the grid to which the power system is connected, and the power system determining if there is a frequency change within the grid. This includes if the frequency change does not exceed a predetermined threshold, the power system supplying a second amount of reactive power to the grid, and if the frequency exceeds a predetermined threshold, the power system supplying a first amount of reactive power to the grid.
Claims17
A modular power conversion system comprising:
- at least one first electric resource;
- a modular power stage;
- at least one building;
- and
- a motor controller for a permanent magnetic synchronous motor comprising a position/velocity estimator that iteratively determines the motor velocity starting with an estimated motor velocity, that is integrated to get an estimated motor position, the estimated motor position is compared to a value from one or more motor position sensors to update the estimated motor velocity, wherein the comparison of the measured motor position to the estimated motor position includes a deadband block that zeros out differences between the measured and estimated motor position that are outside the a predetermined deadband range;
- wherein said modular power stage comprises at least one module including power electronics for converting power between said at least one first electric resource and said at least one building.
A modular power conversion system comprising:
- at least one first electric resource;
- a modular power stage;
- at least one building;
- and
- a motor controller for a permanent magnetic synchronous motor comprising a position/velocity estimator for providing a velocity of the permanent magnetic synchronous motor based on sensor signals from Hall sensors on permanent magnetic synchronous motor including:
- estimating a position based on the sensor signals;
- comparing the estimated position to a measured position;
- and
- providing the desired velocity based on a choice between the estimated position or the measured position, the choice being based on a difference between the estimated position and the measured position;
- wherein said modular power stage comprises at least one module including power electronics for converting power between said at least one first electric resource and said at least one building.
Dependencies are inferred from the claim text.