Inverter integrated instrumentation having a current-voltage cur

Electric power conversion systems – Current conversion – With condition responsive means to control the output...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

136293, 363 98, H02M 324

Patent

active

061117676

ABSTRACT:
An inverter includes a first switch to disconnect an output of the inverter from any device connected thereto, a second switch to disconnect and connect an input of the inverter from direct current fed to the inverter, and a discharge device to discharge any residual charge on a large capacitor. The inverter further includes a voltage sensor to measure input DC voltage to the inverter, a current sensor to measure input DC current to the inverter and a data recorder to provide a current voltage trace to provide a current-voltage curve tracer to provide current-voltage properties of the solar array to which the inverter is attached. The inverter is capable of reproducibly operating at the same point on a module IV curve for a given set of temperature and irradiance conditions. By coupling a temperature sensor to the inverter, photovoltaic module temperature can be measured and combined with the data from the input DC current and voltage sensors and information on the photovoltaic module operating characteristics to compute solar plane-of-array irradiance. Also described is a method for ascertaining photovoltaic module temperature by combining irradiance data, input DC current and voltage measurements and the knowledge that the inverter is operating at a known point on an IV curve. The inverter also includes AC current and voltage sensors for computing inverter output total harmonic distortion.

REFERENCES:
patent: 4375662 (1983-03-01), Baker
patent: 4580090 (1986-04-01), Bailey et al.
patent: 4873480 (1989-10-01), Lafferty
patent: 4999560 (1991-03-01), Morishima et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Inverter integrated instrumentation having a current-voltage cur does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inverter integrated instrumentation having a current-voltage cur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inverter integrated instrumentation having a current-voltage cur will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1255475

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.