WHOLE HOUSE AND POWER SYSTEM ANALYSIS VIA GRID CONNECTED APPLIANCE
First Claim
1. A residential electrical system comprising:
- a residential electric power distribution system arranged to distribute a.c. electric power in a residence;
a residential electrical load connected via power input terminals to draw a.c. electric power from the residential electric power distribution system;
a load controller operatively connected with the residential electric load to regulate electric power drawn by the residential electrical load from the residential electric power distribution system wherein the operative connection includes operative connection to measure voltage (VM) and electric current (IM) at the power input terminals;
wherein the load controller includes a microprocessor or microcontroller programmed to compute a source impedance of the residential electric power distribution system as seen from the power input terminals from measured voltage (VM) and electric current (IM) at the power input terminals.
1 Assignment
0 Petitions
Accused Products
Abstract
A load controller is connected with a residential electric load to regulate electric power drawn by the load from a residential a.c. electric power distribution system via power input terminals of the load. A voltmeter is connected to measure voltage at the power input terminals, and an ammeter is connected to measure electric current at the power input terminals. A microprocessor or microcontroller is programmed to compute a source impedance of the power distribution system as seen from the power input terminals using measured voltage and electric current at the power input terminals. The source impedance may be computed by determining an equivalent source voltage as equal to measured voltage at the power input terminals when the electric current at the power input terminals is zero, and computing the source impedance from measured non-zero electric current at the power input terminals in combination with at least the equivalent source voltage.
39 Citations
28 Claims
-
1. A residential electrical system comprising:
-
a residential electric power distribution system arranged to distribute a.c. electric power in a residence; a residential electrical load connected via power input terminals to draw a.c. electric power from the residential electric power distribution system; a load controller operatively connected with the residential electric load to regulate electric power drawn by the residential electrical load from the residential electric power distribution system wherein the operative connection includes operative connection to measure voltage (VM) and electric current (IM) at the power input terminals; wherein the load controller includes a microprocessor or microcontroller programmed to compute a source impedance of the residential electric power distribution system as seen from the power input terminals from measured voltage (VM) and electric current (IM) at the power input terminals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A load controller configured for operative connection with a residential electric load to regulate electric power drawn by the residential electrical load from a residential a.c. electric power distribution system via power input terminals of the residential electrical load, the load controller comprising:
-
a voltmeter connected to measure voltage at the power input terminals; an ammeter connected to measure electric current at the power input terminals; and a microprocessor or microcontroller programmed to compute a source impedance of the residential a.c. electric power distribution system as seen from the power input terminals using measured voltage and electric current at the power input terminals. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A residential electrical power method comprising:
-
using a residential electric power distribution system, distributing a.c. electric power in a residence including powering a residential electrical load connected via power input terminals to draw a.c. electric power from the residential electric power distribution system; using a load controller operatively connected with the residential electric load, regulating electric power drawn by the residential electrical load from the residential electric power distribution system; measuring voltage (VM) and electric current (IM) at the power input terminals; and using a microprocessor or microcontroller of the load controller, computing a source impedance of the residential electric power distribution system as seen from the power input terminals from measured voltage (VM) and electric current (IM) at the power input terminals. - View Dependent Claims (23, 24, 25, 26, 27, 28)
-
Specification