| 摘要 |
An energy storage system includes: a new renewable energy unit generating a new renewable energy power; a DC link connected to the new renewable energy unit and generating a DC link power; a power system connected to the DC link and generating a power system power; a battery connected to the DC link and generating a battery power; an auxiliary power generator connected to the power system, the new renewable energy unit, the DC link, and the battery, respectively, and generating an auxiliary power; and an integrated controller connected to the auxiliary power generator and receiving the auxiliary power. The auxiliary power is selected from one of the power system power, the new renewable energy power, the DC link power, and the battery power. |
| 主权项 |
1. An energy storage system comprising:
a new renewable energy unit to generate a new renewable energy power; a Direct Current (DC) link connected to the new renewable energy unit to generate a DC link power; a power system connected to the DC link to generate a power system power; a battery connected to the DC link to generate a battery power; an auxiliary power generator, connected to the power system, the new renewable energy unit, the DC link, and the battery, and configured to generate an auxiliary power; and an integrated controller connected to the auxiliary power generator to receive the auxiliary power, wherein the auxiliary power generator is configured to select one of the power system power, the new renewable energy power, the DC link power, and the battery power to output the auxiliary power, wherein the auxiliary power generator comprises:
an AC-DC converter to invert the power system power into a DC power; anda diode OR circuit unit comprising a first diode to which the inverted power system power is applied, a second diode to which the new renewable energy power is applied, a third diode to which the DC link power is applied, and a fourth diode to which the battery power is applied, wherein the diode OR circuit unit is configured to output one of the inverted power system power, the new renewable energy power, the DC link power, and the battery power, having a highest power level as the auxiliary power, wherein the auxiliary power generator is directly connected to the power system, the new renewable energy unit, the DC link and the battery through the first diode, the second diode, the third diode, and the fourth diode, respectively, and wherein the auxiliary power generator is configured to continuously supply the auxiliary power to the integrated controller so that the integrated controller can continuously maintain an operation. |
