Single-stage buck-boost inverter
First Claim
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1. A single-stage buck-boost inverter, comprising:
- an input for receiving DC power;
an output operable to provide AC power;
a first inductor;
a first switching means to controllably connect said first inductor to said input;
a first discharge loop for conveying power to said output;
a second switching means to controllably connect said first inductor to said first discharge loop;
a second inductor magnetically coupled to said first inductor;
a second discharge loop for conveying power to said output;
a third switching means to controllably connect said second inductor to said second discharge loop.
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Abstract
An improved Single-Stage Buck-Boost inverter (S2B2 Inverter) is provided, using only three or four power semiconductor switches and two coupled inductors in a flyback arrangement. The inverter can handle a wide range of dc input voltages and produce a fixed ac output voltage. The inverter is well suited to distributed power generation systems such as photovoltaic and wind power and fuel cells, for standalone or grid connected applications. The inverter has a single charge loop, a positive discharge loop and a negative discharge loop.
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Citations
7 Claims
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1. A single-stage buck-boost inverter, comprising:
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an input for receiving DC power;
an output operable to provide AC power;
a first inductor;
a first switching means to controllably connect said first inductor to said input;
a first discharge loop for conveying power to said output;
a second switching means to controllably connect said first inductor to said first discharge loop;
a second inductor magnetically coupled to said first inductor;
a second discharge loop for conveying power to said output;
a third switching means to controllably connect said second inductor to said second discharge loop. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification