Fracturing well site system

1. A fracturing system, comprising an electrical apparatus, an electric-power supply apparatus, and a grounding system, wherein:

the grounding system comprises a first grounding metal wire, and a first grounding terminal spaced from each of the electrical apparatus and the electric-power supply apparatus;

at least one of the electrical apparatus and the electric-power supply apparatus is connected to the first grounding metal wire and connected to the first grounding terminal through the first grounding metal wire;

the first grounding terminal is configured to ground at least one of the electrical apparatus and the electric-power supply apparatus;

the electric-power supply apparatus comprises an electric-power supply device, an electric-power converter device electrically connected with the electric-power supply device, and an electric-power distribution device electrically connected with the electric-power converter device;

the grounding system further comprises a third grounding metal wire;

at least one of the electric-power supply device, the electric-power converter device, and the electric-power distribution device is connected to the third grounding metal wire and is connected to the first grounding terminal through the third grounding metal wire;

the third grounding metal wire is configured to surround at least one of the electric-power supply device, the electric-power converter device, and the electric-power distribution device; and

the third grounding metal wire is a closed wire loop.

2. The fracturing system according to claim 1 , wherein:

the fracturing system comprises a plurality of electrical apparatuses including the electrical apparatus and a plurality of fuel-driven apparatuses;

the grounding system further comprises a second grounding metal wire;

each of the plurality of electrical apparatuses is connected to the first grounding metal wire and is connected to the first grounding terminal through the first grounding metal wire; and

each of the plurality of fuel-driven apparatuses is connected to the second grounding metal wire and is connected to the first grounding terminal through the second grounding metal wire.

3. The fracturing system according to claim 2 , wherein:

the plurality of electrical apparatuses are disposed in at least two rows spaced apart from each other in a first direction;

each of the at least two rows comprises at least two electrical apparatuses provided in a second direction;

the first direction and the second direction are perpendicular to each other;

the plurality of fuel-driven apparatuses are disposed in at least two rows spaced apart from each other in the first direction; and

each of the at least two rows of fuel-driven apparatuses comprises at least two fuel-driven apparatuses provided in the second direction.

4. The fracturing system according to claim 3 , wherein:

the first grounding metal wire is located between the at least two rows of electrical apparatuses in the first direction;

the second grounding metal wire is located between the at least two rows of fuel-driven apparatuses in the first direction; and

the first grounding terminal is located between the first grounding metal wire and the second grounding metal wire in the second direction.

5. The fracturing system according to claim 2 , wherein:

the first grounding wire, the second grounding wire, and the third grounding wire are provided on a ground level and comprise a flat-shaped structure of conductive material.

6. The fracturing system according to claim 1 , wherein:

all of the electrical apparatus and the electric-power supply apparatus are connected to the first grounding terminal.

7. The fracturing system according to claim 1 , wherein:

the grounding system further comprises a second grounding terminal, and the second grounding terminal is directly connected with at least one of the electrical apparatus and the electric-power supply apparatus and is configured to ground at least one of the electrical apparatus and the electric-power supply apparatus.

8. The fracturing system according to claim 1 , wherein:

the fracturing system further comprises an auxiliary electrical apparatus connected to the first grounding terminal; and

the first grounding terminal is further configured to ground the auxiliary electrical apparatus.

9. The fracturing system according to claim 1 , wherein:

the fracturing system further comprises an overhead cable;

the overhead cable is connected with the electric-power supply apparatus and configured to provide power to the electric-power supply apparatus; and

the overhead cable comprises a conductive core and a protective layer wrapping the conductive core.

10. The fracturing system according to claim 9 , wherein:

the protective layer comprises a shielding layer;

the grounding system further comprises a third grounding terminal; and

the third grounding terminal is connected with the shielding layer of the overhead cable and configured to ground the shielding layer of the overhead cable.

11. The fracturing system according to claim 1 , wherein:

the electrical apparatus comprises one or more of a frequency conversion apparatus, an electrical fracturing apparatus, an electrical sand mixing apparatus, an electrical sand transportation apparatus, an electrical meter, an electrical chemical additive apparatus, and an electrical proppant apparatus.

12. The fracturing system according to claim 1 , comprising a fuel-driven apparatus, wherein:

the first grounding terminal is spaced from the fuel-driven apparatus;

the fuel-driven apparatus is connected to the first grounding terminal;

the first grounding terminal is configured to ground the fuel-driven apparatus;

the fuel-driven apparatus comprises a diesel-driven apparatus; and

the diesel-driven apparatus comprises one or more of a diesel-driven fracturing apparatus, a diesel-driven sand mixing apparatus, and a diesel-driven mixing apparatus.

13. A fracturing system, comprising an electrical apparatus, an electric-power supply apparatus, and a grounding system, wherein:

the grounding system comprises a first grounding metal wire, and a first grounding terminal spaced from each of the electrical apparatus and the electric-power supply apparatus;

at least one of the electrical apparatus and the electric-power supply apparatus is connected to the first grounding metal wire and connected to the first grounding terminal through the first grounding metal wire;

the first grounding terminal is configured to ground at least one of the electrical apparatus and the electric-power supply apparatus;

the electric-power supply apparatus comprises an electric-power supply device;

the electric-power supply device comprises at least one of a first electric-power supply and a second electric-power supply;

the first electric-power supply is configured to provide a first voltage;

the second electric-power supply is configured to provide a second voltage;

the first voltage and the second voltage are both in an order of kilovolts; and

the first voltage is larger than the second voltage.

14. The fracturing system according to claim 13 , wherein:

the electric-power supply apparatus further comprises an electric-power converter device electrically connected to the first electric-power supply;

the electric-power supply apparatus further comprises an electric-power distribution device electrically connected to the electric-power converter device and configured to distribute power to the electrical apparatus;

the first electric-power supply is configured to transmit the first voltage to the electric-power converter device; and

the electric-power converter device is configured to compare the first voltage with a preset voltage, adjust the first voltage according to a comparison result, and transmit the adjusted first voltage to the electric-power distribution device.

15. The fracturing system according to claim 14 , wherein:

the electric-power distribution device is directly electrically connected to the second electric-power supply; and

the electric-power distribution device is further configured to distribute the second voltage provided by the second electric-power supply to the electrical apparatus.