Patent
Method and system to convert direct current (DC) to alternating current (AC) using a photovoltaic inverter
TLDR
In this paper, a method to convert direct current (DC) power generated by a photovoltaic (PV) arrays to alternating current (AC) power using a PV inverter is proposed.Abstract:
A method to convert direct current (DC) power generated by a photovoltaic (PV) arrays to alternating current (AC) power using a PV inverter, the method includes: applying the DC power generated the PV array to the PV inverter; boosting the DC power from the PV array from a predetermined voltage level to a predetermine DC link voltage, wherein the PV array is regulated by the boosting to output a voltage at the predetermined voltage level; converting the boosted DC power to AC power, and disabling the boost of the power generated by the PV array after the array has a predetermined voltage level at least as great as the DC link voltage.read more
Citations
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Patent
Distributed Power Harvesting Systems Using DC Power Sources
TL;DR: In this article, the converters are coupled in series and an inverter is connected in parallel with the series connection of converters and inverts a DC input to the inverter from converters into an AC output.
Patent
Monitoring of Distributed Power Harvesting Systems Using DC Power Sources
TL;DR: A monitoring system and method for monitoring performance of individual powers sources in a distributed power source system is presented in this paper, where a monitoring module is coupled to each of the power sources or to each string of serially connected power sources to monitor and collect data regarding current, voltage, temperature and other environmental factors at the power source.
Patent
Method for distributed power harvesting using DC power sources
TL;DR: In this article, the converters are coupled in series and an inverter is connected in parallel with the series connection of converters and inverts a DC input to the inverter from converters into an AC output.
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Safety mechanisms, wake up and shutdown methods in distributed power installations
TL;DR: In this paper, a distributed power system including multiple DC power sources and multiple power modules is described, where an inverter converts power input from the serial string to output power and a signaling mechanism between the inverter and the power module is adapted for controlling operation of the power modules.
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Digital Average Input Current Control in Power Converter
TL;DR: In this paper, the authors proposed a digital average-input current-mode control loop for a DC/DC power converter, where the purpose of the proposed control loop is to set the average converter input current to the requested current.
References
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Patent
Solar array inverter with maximum power tracking
TL;DR: An inverter for use in connecting a DC power source to the utility grid includes a single DC-DC conversion stage, maximum (source) power tracking, and current control based on feed-forward compensation as a function of an input power commanding voltage, rectified utility line voltage, and either a scaled and squared inverse or a scaled inverse of RMS voltage as discussed by the authors.
Patent
Inverter apparatus connected to a plurality of direct current power sources and dispersed-power-source system having inverter apparatus linked to commercial power system to operate
TL;DR: In this paper, a plurality of converters (5A-5D) each receiving a direct current power from respective plurality of solar cell arrays (2A-2D) having different output voltage ranges, and an inverter (6) transforming the directcurrent power from the plurality of inverters into an alternating current power and allowing the alternating current to reversely flow into a commercial power system.
Patent
Apparatus and method for maximizing power delivered by a photovoltaic array
Eduard Muljadi,Roger W. Taylor +1 more
TL;DR: In this paper, a method and apparatus for maximizing the electric power output of a photovoltaic array connected to a battery is presented, where the voltage across the PV array is adjusted through a range of voltages to find the voltage that maximizes the electrical power generated by the PV arrays and then is held constant for a period of time.
Patent
Self-excited power minimizer/maximizer for switching power converters and switching motor drive applications
TL;DR: In this article, a generalized tuning scheme that uses the correlation between changes in the input and corresponding changes in output to tune the operating point is presented, when the system reaches the desired operating point, the correlation goes to zero and the system converges.
Patent
Dc to ac inverter with single-switch bipolar boost circuit
Richard T. West,Gary Fourer +1 more
TL;DR: In this article, the authors proposed a boost converter stage that regulates the voltage for a following DC to AC converter stage and uses a single semiconductor switching device, which allows a variety of DC sources to provide power to the utility grid or directly to loads without a transformer.