POWER CONVERTING DEVICE FOR NEW RENEWABLE ENERGY STORAGE SYSTEM
First Claim
1. A power converting device for a new renewable energy storage system, the power converting device comprising:
- a plurality of rechargeable batteries;
a plurality of bidirectional converters respectively connected in parallel to the plurality of batteries;
a plurality of direct current (DC) links connected in parallel to the plurality of bidirectional converters;
a plurality of bidirectional inverters connected in parallel to the plurality of DC links; and
an electric power system connected to the plurality of bidirectional inverters.
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Abstract
A power converting device for a new renewable energy storage system includes rechargeable batteries, bidirectional converters respectively connected in parallel to the batteries, direct current (DC) links connected in parallel to the bidirectional converters, respectively, bidirectional inverters connected in parallel to the DC links, respectively, and an electric power system connected to the bidirectional inverters. The bidirectional inverters are cascade H-bridge multi-level boost inverters. The DC links are charged by the bidirectional inverters connected to the battery and a charged voltage of the DC links is provided to the electric power system by the bidirectional inverters. In addition, the DC links are charged by the bidirectional inverters connected to the electric power system and a charged voltage of the DC links is provided to the battery by the bidirectional inverters.
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Citations
20 Claims
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1. A power converting device for a new renewable energy storage system, the power converting device comprising:
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a plurality of rechargeable batteries; a plurality of bidirectional converters respectively connected in parallel to the plurality of batteries; a plurality of direct current (DC) links connected in parallel to the plurality of bidirectional converters; a plurality of bidirectional inverters connected in parallel to the plurality of DC links; and an electric power system connected to the plurality of bidirectional inverters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification