Patent
Method and apparatus for tracking maximum power point for inverters, for example, in photovoltaic applications
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TLDR
In this paper, an outer voltage feedback loop and an inner current feedback loop are employed to control a power converter, such as a DC to AC inverter, for transferring electrical power between a power source, for example a photovoltaic array, and a load.Abstract:
A power system employs an outer voltage feedback loop and an inner current feedback loop to control a power converter, such as a DC to AC inverter for transferring electrical power between a power source, for example a photovoltaic array, and a load, for example a power grid. The outer loop accommodates variations in the output of the power source, for example accommodating anomalies in IV characteristics such as IV droop characteristic associated with photovoltaic cells. The outer loop may employ a first control regime or a second control regime, for example, dependent on whether a DC bus voltage or power is smaller than a value corresponding to measurement resolution or expected noise.read more
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Switching Circuits For Extracting Power From An Electric Power Source And Associated Methods
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References
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Book
Power Electronics: Converters, Applications and Design
TL;DR: In this paper, the authors present a simulation of power switch-mode converters for zero-voltage and/or zero-current switchings in power electronic converters and systems.
Journal ArticleDOI
Maximum photovoltaic power tracking: an algorithm for rapidly changing atmospheric conditions
TL;DR: In this article, the authors developed an incremental conductance (IncCond) algorithm to track the maximum power operating point (MPOP) of photovoltaic (PV) power generation systems.
Journal ArticleDOI
A novel maximum power point tracker for PV panels using switching frequency modulation
TL;DR: In this article, a novel technique for efficiently extracting maximum power from photovoltaic (PV) panels is presented, which is based on injecting a small-signal sinusoidal perturbation into the switching frequency and comparing the AC component and the average value of the panel terminal voltage.
Patent
DC/AC inverter controller for solar cell, including maximum power point tracking function
TL;DR: In this article, a DC/AC inverter controlling system consisting of an inverter unit for inverting DC (direct current) power derived from the solar cell power source into AC (alternating current) energy to be supplied to an AC power line, and a power variation judging unit for judging whether or not a variation measured during a predetermined time period and occurring in the AC power outputted from the DC or AC inverter units, exceeds a predetermined value, thereby producing a power variance judging signal, while the power variation does not exceed the predetermined value.
Patent
Power control apparatus for solar power generation system
TL;DR: In this paper, a power control apparatus of a solar power generation system for converting power generated by a solar panel and supplying the converted power to a load, the output voltage and output current of the solar panel are sensed, and, under ordinary conditions, MPPT control is performed so that the solar cells will operate at a maximum output point.