Integrated power supply system
AssigneeDelta Electronics, Inc.
InventorsYu-Ming Chang, Sheng-Hua Li
Life of this patent
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Abstract
An integrated power supply system includes a grid power source, at least one renewable power source, a rechargeable battery assembly, a DC bus, a bi-directional AC-to-DC converter, at least one first DC-to-DC converter, a bi-directional DC-to-DC converter, and a controller. The bi-directional AC-to-DC converter is coupled to the grid power source and the DC bus. The at least one first DC-to-DC converter is coupled to the at least one renewable power source and the DC bus. The bi-directional DC-to-DC converter is coupled to the rechargeable battery assembly and the DC bus. The controller controls power electricity feeding into and being drawn from the DC bus, thereby keeping a bus voltage of the DC bus substantially fixed at a system voltage.
Claims15
An integrated power supply system, comprising:
- a grid power source;
- at least one renewable power source;
- a rechargeable battery assembly;
- a DC bus;
- a bi-directional AC-to-DC converter, coupled to the grid power source and the DC bus;
- at least one first DC-to-DC converter, coupled to the at least one renewable power source and the DC bus;
- a bi-directional DC-to-DC converter, coupled to the rechargeable battery assembly and the DC bus;
- an AC transformer, coupled to the grid power source and configured to transform a voltage level of the grid power source, and the AC transformer having a delta-connected primary side and a wye-connected secondary side coupled to the bi-directional AC-to-DC converter in a single-phase connection;
- wherein the bi-directional AC-to-DC converter provides an input common connection end and an output neutral point, and the common connection end and the output neutral point are coupled to one phase of the primary side of the AC transformer, and
- a controller, configured to control power electricity provided from the grid power source, the at least one renewable power source, and the rechargeable battery assembly feeding into and being drawn from the DC bus, thereby keeping a bus voltage of the DC bus substantially fixed at a system voltage.
Dependencies are inferred from the claim text.