IP Library Granted Patent US 9,537,420
Granted Patent B2
US 9,537,420 · App. 13/623,302 · Granted Jan 3, 2017

Method and apparatus for power module output power regulation

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Quick Facts
Patent No.
US 9,537,420
App. No.
13/623,302
Granted
Jan 3, 2017
Kind
B2
Abstract

A method and apparatus for modifying power produced by a power converter. In one embodiment, the method comprises comparing a line voltage level to a first threshold and a second threshold, wherein the line voltage level is a level of a line voltage at an output of a power converter; and modifying power produced by the power converter by (i) a first modification when the line voltage level is between the first and the second thresholds, and (ii) a second modification when the line voltage level exceeds the second threshold.

Claims (25)

1. A method for regulating power production, comprising:

comparing a line voltage level to a first threshold and a second threshold, wherein the line voltage level is a level of a line voltage at an output of a power converter; and

modifying power produced by the power converter by (i) a first modification when the line voltage level is between the first and the second thresholds, and (ii) a second modification when the line voltage level exceeds the second threshold.

2. The method of claim 1 , wherein modifying the power produced by the first modification comprises reducing the power produced.

3. The method of claim 2 , wherein reducing the power produced comprises reducing the power produced as a function of the line voltage level.

4. The method of claim 3 , wherein the function is a linear function.

5. The method of claim 1 , wherein the first modification comprises reducing allowed maximum power out by a fixed amount when power production is greater than a percentage of the allowed maximum power out.

6. The method of claim 1 , wherein the second threshold is based on a regulatory standard limit.

7. The method of claim 1 , wherein modifying the power produced by the second modification comprises ceasing power production.

8. An apparatus for generating regulated power, comprising:

a power converter comprising a power modification module, wherein the power modification module (a) compares a line voltage level to a first threshold and a second threshold, wherein the line voltage level is a level of a line voltage at an output of the power converter, and (b) modifies power produced by the power converter by (i) a first modification when the line voltage level is between the first and the second thresholds, and (ii) a second modification when the line voltage level exceeds the second threshold.

9. The apparatus of claim 8 , wherein modifying the power produced by the first modification comprises reducing the power produced.

10. The apparatus of claim 9 , wherein reducing the power produced comprises reducing the power produced as a function of the line voltage level.

11. The apparatus of claim 10 , wherein the function is a linear function.

12. The apparatus of claim 8 , wherein the first modification comprises reducing allowed maximum power out by a fixed amount when power production is greater than a percentage of the allowed maximum power out.

13. The apparatus of claim 8 , wherein the second threshold is based on a regulatory standard limit.

14. The apparatus of claim 8 , wherein modifying the power produced by the second modification comprises ceasing power production.

15. A system for generating regulated power, comprising:

a photovoltaic (PV) module; and

a power converter, coupled to the PV module, wherein the power converter comprises a power modification module, and wherein the power modification module (a) compares a line voltage level to a first threshold and a second threshold, wherein the line voltage level is a level of a line voltage at an output of the power converter, and (b) modifies power produced by the power converter by (i) a first modification when the line voltage level is between the first and the second thresholds, and (ii) a second modification when the line voltage level exceeds the second threshold.

16. The system of claim 15 , wherein modifying the power produced by the first modification comprises reducing the power produced.

17. The system of claim 16 , wherein reducing the power produced comprises reducing the power produced as a function of the line voltage level.

18. The system of claim 17 , wherein the function is a linear function.

19. The system of claim 15 , wherein the first modification comprises reducing allowed maximum power out by a fixed amount when power production is greater than a percentage of the allowed maximum power out.

20. The system of claim 15 , wherein the second threshold is based on a regulatory standard limit, and wherein modifying the power produced by the second modification comprises ceasing power production.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Feb 26, 2020
From: FLEXTRONICS INDUSTRIAL, LTD.; FLEXTRONICS AMERICA, LLC
To: ENPHASE ENERGY, INC.
Reel/Frame 052022/0954 →
CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY NAME PREVIOUSLY RECORDED AT REEL: 041936 FRAME: 0109. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTEREST. Recorded Apr 17, 2017
From: ENPHASE ENERGY, INC.
To: FLEXTRONICS INDUSTRIAL, LTD; FLEXTRONICS AMERICA, LLC
Reel/Frame 043339/0856 →
SECURITY AGREEMENT Recorded Dec 30, 2016
From: ENPHASE ENERGY, INC.
To: FLEXTRONICS INDUSTRIAL, LTD
Reel/Frame 041958/0820 →
SECURITY INTEREST Recorded Dec 30, 2016
From: ENPHASE ENERGY, INC.
To: FLEXTRONICS AMERICA, LLC
Reel/Frame 041936/0109 →
SECURITY INTEREST Recorded Dec 30, 2016
From: ENPHASE ENERGY, INC.
To: OBSIDIAN AGENCY SERVICES, INC.
Reel/Frame 041225/0509 →
SECURITY INTEREST Recorded Dec 28, 2016
From: ENPHASE ENERGY, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 041210/0283 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2012
From: BARNES, ANDREW; BOLFAN, TIBOR
To: ENPHASE ENERGY, INC.
Reel/Frame 029034/0288 →