10 patents
Utility
Adaptive Electrical Power Distribution Panel
18 May 23
An adaptive electrical power distribution panel receives electrical power from at least an alternative power source other than a utility electric grid, and selectively outputs power to a plurality of branch circuits, appliances, or devices.
Paul Wilkinson Dent
Filed: 16 Aug 22
Utility
Dual-Source Facility Power System
2 Jun 22
A dual-source facility power system includes a first electrical interface configured to receive DC power from at least one photovoltaic panel; a second electrical interface configured to receive AC power from an electric utility grid; a third electrical interface configured to deliver AC power to one or more branch circuits or appliances; and a controller.
Paul Wilkinson Dent
Filed: 16 Feb 22
Utility
Solar Energy System with Variable Priority Circuit Backup
5 May 22
A photovoltaic system providing both grid-tie and back-up operation comprises an inverter having a first, voltage-controlled output for powering appliances, and a second, current-controlled output for grid back-feed.
Paul Wilkinson Dent
Filed: 12 Nov 21
Utility
Transformerless DC to AC Converter Using Selectively Series-Connected Capacitors and PWM
30 Dec 20
A DC to AC converter is configured to convert DC power from a floating DC power source to AC power having a desired voltage and waveform.
Paul Wilkinson Dent
Filed: 10 Sep 20
Utility
Fast Fault Current Limiter
18 Nov 20
A fast-operating AC fault current limiter, to limit the fault current let through to downstream equipment during short circuit or low-impedance faults, comprises a series inductor to limit current rise time, a current sensor to sense the instantaneous current, a series AC semiconductor switch to interrupt current flow when it exceeds the maximum desired fault current, and a shunt AC semiconductor switch to catch inductor flyback voltage when the series semiconductor switch is opened.
Paul Wilkinson Dent
Filed: 13 May 19
Utility
Smart Load Center Panel
29 Apr 20
A smart load center panel (10) accepts two hot legs from each of two power sources, and selectively connects each of a plurality of breakers to one of the two power sources under processor control.
Curtis W. Thornton, Paul Wilkinson Dent
Filed: 11 Sep 17
Utility
Safety Shut-Down System for a Solar Energy Installation
19 Feb 20
A safety shut-down system for a solar energy installation includes a DC to AC inverter converting DC power from a photovoltaic solar array to AC power and generating remote control signals to enable or disable the flow of DC power from each individual photovoltaic panel or string of panels to a photovoltaic output circuit.
Paul Wilkinson Dent
Filed: 2 Sep 19
Utility
Multi-Level DC to AC Inverter
22 Jan 20
A single- or multi-phase DC to AC converter system suited for solar energy installations achieves cost reduction by eliminating low-frequency power transformers.
Paul Wilkinson Dent
Filed: 4 Aug 19
Utility
Neutral Routing for Multiple Electrical Power Sources
8 Jan 20
In an electrical distribution system for a facility served by two power sources, ground currents on neutral conductors are avoided by utilizing a common neutral conductor in distributing power from both power sources to one or more transfer switches.
Paul Wilkinson Dent
Filed: 28 Nov 17
Utility
Dual-Power Electrical Outlets
8 Jan 20
The selection of electrical power supplied to a load, between a first power source such as the electric utility grid, and a second power source such as a solar-charged battery-inverter system, is made at the granularity of individual electrical outlets (or junction boxes for appliances directly connected or loads installed as fixtures).
Jacobus Cornelis Haartsen, Curtis Wayne Thornton, Paul Wilkinson Dent
Filed: 12 Dec 17
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