Power supply apparatus for power converters

1. A power supply apparatus for supplying power to a power system, the power supply apparatus comprising:

a first set of photovoltaic power cells configured to supply power to a power grid;

a second set of photovoltaic power cells configured to supply a voltage to a voltage regulator to supply control power for controlling power converters; and

the power converters configured to convert the supplied power and supply the converted power to the power system.

2. The power supply apparatus for the power converters of claim 1 , wherein the first set of photovoltaic power cells are power generators in a photovoltaic power generation system.

3. The power supply apparatus for the power converters of claim 1 , wherein

the power converters are distributed among buildings, and

at least one photovoltaic power cell for the power converters is provided at each of the buildings.

4. A power supply method for supplying power to a power system, the power supply method comprising:

supplying power by a first set of photovoltaic power cells to a power grid;

supplying a voltage to a voltage regulator by a second set of photovoltaic power cells to supply control power for controlling power converters;

converting the supplied power and supplying the converted power to the power system by the power converters.

5. The power supply method for the power converters of claim 4 , wherein the first set of photovoltaic power cells are power generators in a photovoltaic power generation system.

6. The power supply method for the power converters of claim 4 , wherein

the power converters are distributed among buildings, and

power supply to the power converters is performed by power generation of the first set of photovoltaic power cells provided at the buildings where the power converters are provided, respectively.

7. A power generation system comprising:

a first set of photovoltaic power cells configured to supply power to a power grid;

power converters configured to convert power supplied by the first of photovoltaic power cells into power to be supplied to a power system; and

a second set of photovoltaic power cells configured to supply a voltage to a voltage regulator to supply control power for controlling the power converters.

8. The power generation system of claim 7 , wherein the first set of photovoltaic power cells are power generators in a photovoltaic power generation system.

9. The power generation system of claim 7 , wherein

the power converters are distributed among buildings, and

at least one photovoltaic power cell for the power converters is provided at each of the buildings.