Power interface for mining / construction vehicles

Abstract

The disclosure relates to a power interface for electrically connecting at least one mining / construction vehicle to a power grid. The power interface (100) comprising: one or more power inputs (102) configured to be electrically connected or disconnected to the power grid (200) and receive one or more input powers (P In ) from the power grid (200); a first power output (112) configured to be electrically connected or disconnected to a first electrical device (310) of the mining / construction vehicle (300); one or more second power outputs (114) configured to be electrically connected or disconnected to one or more second electrical devices (320) of the mining / construction vehicle (300); and a controller (120) configured to distribute and / or convert the one or more input powers (PI n) between the first power output (112) and the one or more second power outputs (114) in a first output power (Pout1) and one or more second output powers (Pout2). Furthermore, the disclosure also relates to a corresponding method and a mining / construction vehicle comprising such a power interface.

Description

[0001] POWER INTERFACE FOR MINING / CONSTRUCTION VEHICLES

[0002] Technical Field

[0003] The disclosure relates to a power interface for electrically connecting at least one mining / construction vehicle to a power grid. Furthermore, the disclosure also relates to a corresponding method and a mining / construction vehicle comprising such a power interface.

[0004] Background

[0005] Electrified mining / construction vehicles provide an opportunity to reduce the environmental footprint and create a healthier work environment in mining / construction environments. The electrified mining / construction vehicle is driven by one or more electric motors which in turn may be powered by an electric grid system and / or an onboard electrical storage system (ESS) comprising e.g., battery packs. Compared to diesel vehicles, the electrified mining / construction vehicles are emission free and can hence bring considerable savings, especially for ventilation and cooling in mining / construction environments.

[0006] However, electrified mining / construction vehicles need electrical power for their functioning. That is, for powering the electrical motors, batteries, etc. of the electrified mining / construction vehicles. Thus, electrified mining / construction vehicles are connected to a power grid.

[0007] Summary

[0008] An objective of embodiments of the disclosure is to provide a solution which mitigates or solves the drawbacks of conventional solutions.

[0009] According to a first aspect of the disclosure, the above mentioned and other objectives are achieved with a first power interface for electrically connecting a first mining / construction vehicle to a power grid, the first power interface comprising: one or more power inputs configured to be electrically connected or disconnected to the power grid and receive one or more input powers from the power grid; a first power output configured to be electrically connected or disconnected to a first electrical device of the first mining / construction vehicle; one or more second power outputs configured to be electrically connected or disconnected to one or more second electrical devices of the first mining / construction vehicle; and a controller configured to distribute and / or convert the one or more input powers between the first power output and the one or more second power outputs in a first output power and one or more second output powers.

[0010] An advantage of the first power interface according to the first aspect is that the first power interface provides flexibility and scalability when interconnecting electrical devices to an electrical power grid compared to conventional solutions.

[0011] In an embodiment of a first power interface according to the first aspect, the controller is configured to: distribute and / or convert the one or more input powers between the first power output and the one or more second power outputs based on a first measurement, the first measurement comprising measurements of one or more input lines connected to the one or more power inputs.

[0012] An advantage with this embodiment is that measurements related to the input lines for controlling the distribution and / or conversion of the input power is considered. Thereby, the distribution and / or conversion of the input power can be performed more efficiently by considering the first measurement.

[0013] In an embodiment of a first power interface according to the first aspect, the first measurement comprises any measurement in a group comprising: a voltage, a change of voltage, a current, a change of current, a frequency, a change of frequency, an active power, a change of active power, a reactive power, and a change of reactive power.

[0014] An advantage with this embodiment is that relevant measurements related to the input lines for controlling the distribution and / or conversion of the input power is considered. Thereby, the first power interface can be used even more efficiently. In an embodiment of a first power interface according to the first aspect, the controller is configured to: distribute and / or convert the one or more input powers between the first power output and the one or more second power outputs based on a power grid information.

[0015] An advantage with this embodiment is that power grid information related to the power grid for controlling the distribution and / or conversion of the input power is considered. Thereby, the distribution and / or conversion of the input power can be performed more efficiently by considering the power grid information.

[0016] In an embodiment of a first power interface according to the first aspect, the power grid information comprises any information in a group comprising: a capacity, a fault, and a maintenance.

[0017] An advantage with this embodiment is that relevant parameters related to the power grid for controlling the distribution and / or conversion of the input power is considered. Thereby, the first power interface can be used even more efficiently such as handling shortage of available power.

[0018] In an embodiment of a first power interface according to the first aspect, the controller is configured to: distribute and / or convert the one or more input powers between the first power output and the one or more second power outputs based on one or more second measurements, the one or more second measurement comprising measurements of a first output line connected to the first power output and one or more second output lines connected to the one or more second power outputs.

[0019] An advantage with this embodiment is that relevant measurements related to the output lines for controlling the distribution and / or conversion of the input power is considered. Thereby, the distribution and / or conversion of the input power can be performed more efficiently by considering the second measurement e.g., the power distribution can be adapted based on the load demand. In an embodiment of a first power interface according to the first aspect, the second measurement comprises any measurement in a group comprising: a voltage, a change of voltage, a current, a change of current, a frequency, and a change of frequency.

[0020] An advantage with this embodiment is that relevant measurements related to the output lines for controlling the distribution and / or conversion of the input power is considered. Thereby, the first power interface can be used even more efficiently. For example, the impact of load demand may be reflected in the second measurements and the power distribution / conversion may be changed / adapted accordingly.

[0021] In an embodiment of a first power interface according to the first aspect, the controller is configured to: distribute and / or convert the one or more input powers between the first power output and the one or more second power outputs based on an electrical device information associated with the first electrical device and / or the one or more second electrical devices.

[0022] An advantage with this embodiment is that electrical device information related to the first electrical device and / or the one or more second electrical devices for controlling the distribution and / or conversion of the input power is considered. Thereby, the distribution and / or conversion of the input power can be performed more efficiently by considering the electrical device information.

[0023] In an embodiment of a first power interface according to the first aspect, the electrical device information is any information in a group comprising: a state of charge, a task, a power requirement, and a power consumption time period.

[0024] An advantage with this embodiment is that relevant electrical device information related to the first electrical device and / or the one or more second electrical devices for controlling the distribution and / or conversion of the input power is considered. Thereby, the distribution and / or conversion of the input power can be performed even more efficiently. For example, the power distribution / conversion may be changed and adapted based on operational status and / or power requirement of connected loads. In an embodiment of a first power interface according to the first aspect, the first electrical device and the one or more second electrical devices are any of a power consumer or an energy storage unit.

[0025] In an embodiment of a first power interface according to the first aspect, the power consumer is an electrical machine and the energy storage unit is a battery.

[0026] In an embodiment of a first power interface according to the first aspect, the first power interface comprises: two or more second power outputs.

[0027] An advantage with this embodiment is that the first power interface is scalable and can thereby power a flexible number of electrical devices.

[0028] In an embodiment of a first power interface according to the first aspect, at least one second power output is configured to be connected or disconnected to a second mining / construction vehicle.

[0029] An advantage with this embodiment is that the first power interface can power more than one mining / construction vehicle at each time instance.

[0030] In an embodiment of a first power interface according to the first aspect, at least one second power output is configured to be connected or disconnected to a power input of a second power interface.

[0031] An advantage with this embodiment is that a power interface architecture or system is provided in which multiple power interfaces can cooperate and communicate with each other for improved flexibility and scalability.

[0032] In an embodiment of a first power interface according to the first aspect, first power interface comprises: a switching device configured to be controlled by the controller for distributing the one or more input powers between the first power output and the one or more second power outputs; and / or a power conversion device configured to be controlled by the controller for converting the one or more input powers between the first power output and the one or more second power outputs.

[0033] In an embodiment of a first power interface according to the first aspect, the one or more input powers are DC power or AC power.

[0034] In an embodiment of a first power interface according to the first aspect, the first output power and the one or more second output powers are DC power or AC power.

[0035] In an embodiment of a first power interface according to the first aspect, the one or more power inputs comprises one or more input plug-in / plug-out means for connecting or disconnecting the power input to or from the power grid; the first power output comprises an output plug-in / plug-out means for connecting or disconnecting the first power output to or from the first mining / construction vehicle; and the one or more second power outputs comprise one or more output plug-in / plug- out means for connecting or disconnecting the one or more second power outputs to or from the first mining / construction vehicle.

[0036] An advantage with this embodiment is that the first power interface can be treated as a standalone device that may be moved to locations and applications where a power interface is needed. Thereby, improving usability and reduce investment with shared usage.

[0037] According to a second aspect of the disclosure, the above mentioned and other objectives are achieved with a first mining / construction vehicle comprising a first power interface according to embodiments of the disclosure.

[0038] In an embodiment of a first mining / construction vehicle according to the second aspect, the first power interface is attached at the first mining / construction vehicle. According to a third aspect of the disclosure, the above mentioned and other objectives are achieved with method for a power interface for electrically connecting a first mining / construction vehicle to a power grid, the first power interface comprising: one or more power inputs configured to be electrically connected or disconnected to the power grid and receive one or more input powers from the power grid; a first power output configured to be electrically connected or disconnected to a first electrical device of the first mining / construction vehicle; one or more second power outputs configured to be electrically connected or disconnected to one or more second electrical devices of the first mining / construction vehicle; wherein the method comprises: receiving the one or more input powers from the power grid; distributing and / or converting the one or more input powers between the first power output and the one or more second power outputs in a first output power and one or more second output powers.

[0039] The method may be adapted in accordance with the above-mentioned embodiments of the power interface. The advantages of the method are the same as the advantages of the corresponding embodiments of the power interface.

[0040] According to further aspects of the present disclosure, the herein described methods are implemented by use of computer program products comprising instructions which, when the programs are executed by a computer, such as e.g., a control unit, cause the computer to carry out the steps of the methods according to any one of the herein described embodiments.

[0041] Further applications and advantages of embodiments of the disclosure will be apparent from the following detailed description.

[0042] Brief Description of the Drawings

[0043] The appended drawings are intended to clarify and explain different embodiments of the disclosure, in which:

[0044] - Fig. 1 shows a power interface according to embodiments of the disclosure; - Fig. 2 shows a power interface when different types of measurements are considered for distributing / converting input power(s) to output powers according to embodiments of the disclosure;

[0045] - Fig. 3 shows a power interface distributing / converting input power to two or more different mining / construction vehicles according to embodiments of the disclosure;

[0046] - Fig. 4 shows a power interface connected to another power interface according to embodiments of the disclosure;

[0047] - Fig. 5 shows a mining / construction vehicle comprising a power interface according to embodiments of the disclosure;

[0048] - Fig. 6 shows a flow chart of a method according to embodiments of the disclosure; and

[0049] - Fig. 7 illustrates examples of mining / construction vehicles.

[0050] Detailed Description

[0051] As aforementioned, electrified mining / construction vehicles need electrical power for their functioning. Conventionally, electrified mining / construction vehicles are connected to a power grid with a direct connection for receiving power.

[0052] It has however been recognised that an intermediate electrical power interface may be used for electrically connecting a mining / construction vehicle to the power grid. The power interface thus comprises at least one input for receiving power from the power grid and at least one output for providing the power from the power grid to the mining / construction vehicle. The power interface may further comprise one or more converters for converting an input power to an output power, e.g., converting an alternating current (AC) to a direct current (DC) or vice versa. The power interface may also comprise one or more controllers for controlling the electrical energy through the power interface.

[0053] Objectives for power interfaces are, among other things, high performance and flexible interconnectivity. Thus, it is herein disclosed a power interface which also may be denoted a first power interface 100 for distinguish the power interface from other power interfaces which may be denoted second power interfaces 100'. Fig. 1 shows such a first power interface 100 according to embodiments of the disclosure. The first power interface 100 is configured to electrically connecting a first mining / construction vehicle 300 to a power grid 200 to powering the first mining / construction vehicle 300. The mining / construction vehicle 300 is denoted a first mining / construction vehicle 300 to differentiate it from other mining / construction vehicles that may be denoted second mining / construction vehicles. Thus, the first mining / construction vehicle 300 may simply be denoted a mining / construction vehicle. Generally, the use of labels “first” and “second” in this regard does not imply any technical features.

[0054] The first power interface 100 Herein disclosed comprises one or more power inputs 102 configured to be electrically connected or disconnected to the power grid 200 and receive one or more input powers Pin from the power grid 200. The first power interface 100 further comprises a first power output 112 configured to be electrically connected or disconnected to a first electrical device 310 of the first mining / construction vehicle 300, and one or more second power outputs 114 configured to be electrically connected or disconnected to one or more second electrical devices 320 of the first mining / construction vehicle 300. A power input 102 and a power output 112, 114 may be understood as any suitable component, unit or device that can receive electrical power and output electrical power, respectively.

[0055] In embodiments of the disclosure, the one or more input powers Pin are DC power or AC power, and the first output power Pouti and the one or more second output powers Pout2 are DC power or AC power. Therefore, the input power can be AC or DC and the output power can be any of AC, or DC or AC and DC at the different power outputs. Hence, in examples the input power is simply distributed between the output powers while in other examples the input power has to converted and thereafter distributed between multiple output powers. The conversion may be from AC to DC or DC to AC, but also from an input voltage / current to another output voltage / current even though the input power and the output power may both be AC or DC.

[0056] In this respect, the first power interface 100 may comprise a switching device 130 configured to be controlled by the controller 120 for distributing the one or more input powers 210 between the first power output 112 and the one or more second power outputs 114. The switching device 130 can also be named a switching network and may be any suitable switching device 130 including switching components and power electronics for fulfilling switching functions. The switching of the input power(s) may relate to distributing the input power(s) to the output powers.

[0057] The first power interface 100 may also comprise a power conversion device 140 configured to be controlled by the controller 120 for converting the one or more input powers Pin between the first power output 112 and the one or more second power outputs 114. The power conversion device 140 may be any suitable power converter for converting an input power to an output power and can therefore include power electronics for power conversion. The conversion of the input power may relate to a change of voltage of the input power, a change of current of the input power, a change of a frequency of the input power, a conversion from AC to DC, a conversion from DC to AC, etc.

[0058] The first electrical device 310 and the one or more second electrical devices 320 may be any of a power consumer or an energy storage unit according to embodiments of the disclosure. The power consumer is any electrical device of a mining / construction vehicle that needs electrical power for its functioning such as electrical motors, compressors, pumps, actuators, etc. The electrical energy storage unit on the other hand is an electrical unit, an electrical component or an electrical device that is configured to and is capable of storing electrical energy such as batteries and capacitors.

[0059] The first power interface 100 further comprises a controller 120 configured to distribute and / or convert the one or more input powers Pin between the first power output 112 and the one or more second power outputs 1 14 in a first output power Pouti and one or more second output powers Pout2. The controller 120 may be any suitable control device or control arrangement for controlling components and devices of the first inrush current controller 100. Thus, the controller 120 may comprises control logic, processors, memory and communication lines, means and interfaces for performing its control functions. The communication means and interfaces may be standardized communications known in the art. The communication may be wired and / or wireless depending on the application. When communication is performed from / to the controller 120 any suitable communication protocols and communication interfaces may be used. The communication may be performed using wired and / or wireless communications and be based on standardised communication systems.

[0060] Fig. 2 shows a power interface 100 when different types of measurements or parameters are considered for distributing / converting input power(s) to output powers according to embodiments of the disclosure. Thereby, the performance of the power interface may be further improved. It is recognized that electrical measurements related to input lines and output lines provides useful information / data when controlling the power interface 100 as well as information / data about the power grid itself and information / data about the electrical devices of the mining / construction vehicle.

[0061] The controller 120 may obtain or receive the mentioned information / data in a number of different ways. One example is via one or more sensors configured to measure and provided mentioned information / data to the controller 120. Other examples to obtain the information / data are via other controllers, remote servers, remote clients, cloud services, etc. The controller 120 may receive the information / data via wired and / or wireless communication interfaces known in the art. The controller 120 may use the information / data in control algorithms which may also consider power optimization aspects and power grid performance aspects. The controller 120 may store the information / data for future use and may send the information / data to a central controller of the power grid 200.

[0062] In embodiments of the disclosure, the controller 120 is configured to distribute and / or convert the one or more input powers Pin between the first power output 1 12 and the one or more second power outputs 114 based on a first measurement M1. The first measurement M1 comprises measurements of one or more input lines 210 connected to the one or more power inputs 102. These first measurements M1 are performed on the input lines which connects the power interface 100 to the power grid 200.

[0063] The first measurement M1 may comprise any measurement in a group comprising: a voltage of input power, a change of voltage of input power, a current of input power, a change of current of input power, a frequency of input power, a change of frequency of input power, an active power of input power, a change of active power of input power, a reactive power of input power, and a change of reactive power of input power. More specifically, the first measurements M1 may relate to:

[0064] • a voltage of the input line / connection; and / or

[0065] • a change of voltage of the input line / connection; and / or

[0066] • a current of the input line / connection; and / or

[0067] • a change of current of the input line / connection; and / or

[0068] • a frequency of the input voltage supply; and / or

[0069] • a change of frequency of the input voltage supply; and / or

[0070] • an active power of the input line / connection; and / or

[0071] • a change of active power of the input line / connection; and / or

[0072] • a reactive power of the input line / connection; and / or

[0073] • a change of reactive power of the input line / connection.

[0074] In further embodiments of the disclosure, the controller 120 is configured to distribute and / or convert the one or more input powers Pin between the first power output 112 and the one or more second power outputs 114 based on a power grid information (PGI) related to the power grid 200. The power grid information may also be used as input in a control algorithm.

[0075] The power grid information comprises any information in a group comprising:

[0076] • a capacity of the power grid 200 which may be understood as the total power supply capacity; and / or

[0077] • a fault of the power grid 200 which may be understood as information about fault in the power grid system; and / or

[0078] • a maintenance of the power grid 200which may be understood as information about scheduled maintenance of the power grid 200.

[0079] In yet further embodiments of the disclosure, the controller 120 is configured to distribute and / or convert the one or more input powers Pin between the first power output 112 and the one or more second power outputs 114 based on one or more second measurements M2. The one or more second measurement M2 comprises measurements of a first output line 332 connected to the first power output 112 and one or more second output lines 334 connected to the one or more second power outputs 114. These second measurements are performed on the output lines which connects the power interface 100 to the first mining / construction vehicle 300 and specifically in examples directly to the electrical devices of the first mining / construction vehicle 300. The one or more second measurements M2 may also be used as input in a control algorithm.

[0080] The second measurement M2 may comprise any measurement in a group comprising: a voltage of the output power, a change of voltage of the output power, a current of the output power, a change of current of the output power, a frequency of the output power, and a change of frequency of the output power. More specifically, the second measurements M2 may relate to:

[0081] • a voltage of the output line / connection; and / or

[0082] • a change of voltage of the output line / connection; and / or

[0083] • a current of the output line / connection; and / or

[0084] • a change of current of the output line / connection; and / or

[0085] • a frequency of the output line / connection; and / or

[0086] • a change of frequency of the output line / connection.

[0087] In yet further embodiments of the disclosure, the controller 120 is configured to distribute and / or convert the one or more input powers Pin between the first power output 112 and the one or more second power outputs 114 based on an electrical device information (EDI) associated with the first electrical device 310 and / or the one or more second electrical devices 320. The electrical device information may also be used in a control algorithm.

[0088] The electrical device information may be any information in a group comprising:

[0089] • a state of charge of an energy storage; and / or

[0090] • a task of an electrical device for anticipating how long the machine needs to work and thus how much power that is needed; and / or

[0091] • a power requirement of an electrical device which may be understood as how much power is needed / required; and / or

[0092] • a power consumption time period of an electrical device to determine how much power that is necessary.

[0093] Fig. 3 further shows a power interface 100 distributing / converting input power to two or more different mining / construction vehicles 300, 300' according to embodiments of the disclosure. Thus, the first power interface 100 comprises two or more second power outputs 114, and at least one of the second power outputs 114 is configured to be connected or disconnected to a second mining / construction vehicle 300'. Thereby, the power interface 100 provides scalability and flexibility.

[0094] Fig. 4 shows a power interface 100 electrically connected to another power interface 100' according to embodiments of the disclosure. Thereby, two or more power interfaces may be interconnected and cooperating with each other. Thus, a flexible and scalable power interface architecture or system is presented. Such an architecture comprises two power interfaces according to embodiments of the disclosure. In the disclosed embodiment, at least one second power output 114 of a first power interface 100 is configured to be connected or disconnected to a power input 102' of a second power interface 100'. Hence, one power interface can provide one or more output powers to one or more other power interfaces. This is power interface interconnectivity. Further, multiple power interfaces according to embodiments of the disclosure can also be configured to communicate with each other via wired and / or wireless communication interfaces. For example, the controllers 120 of the multiple power interfaces may be configured to communicate with each other. By sharing information between multiple power interfaces for distributing power from the power grid 200 to different power outputs the power use and power consumption can be optimized and scheduled.

[0095] Fig. 5 shows a mining / construction vehicle 300 comprising a power interface 100 according to embodiments of the disclosure. The power interface 100 may is removably attached or removably mounted on the mining / construction vehicle. Hence, the power interface 100 is a standalone device which may be removed from the mining / construction vehicle if needed and located in another application. This improves flexibility and scalability.

[0096] Generally, the first power interface 100 comprises power inputs and power outputs configured to be connected and disconnected to the power grid and the mining / construction vehicle 300, respectively. In this respect, the one or more power inputs 102 may comprise one or more input plug-in / plug-out means for connecting or disconnecting the power input 102 to or from the power grid 200. Further, the first power output 112 comprises an output plug-in / plug-out means for connecting or disconnecting the first power output 112 to or from the first mining / construction vehicle 300, and the one or more second power outputs 114 may comprise one or more output plug-in / plug-out means for connecting or disconnecting the one or more second power outputs 114 to or from the first mining / construction vehicle 300.

[0097] Fig. 6 shows a flow chart of a method according to embodiments of the disclosure. The herein disclosed method 400 is for a first power interface 100 as e.g., illustrated in the previous figs. Thus, the method 400 relates to a power interface 100 for electrically connecting a first mining / construction vehicle 300 to a power grid 200. The first power interface 100 comprises: one or more power inputs 102 configured to be electrically connected or disconnected to the power grid 200 and receive one or more input powers Pin from the power grid 200; a first power output 112 configured to be electrically connected or disconnected to a first electrical device 310 of the first mining / construction vehicle 300; one or more second power outputs 114 configured to be electrically connected or disconnected to one or more second electrical devices 320 of the first mining / construction vehicle 300.

[0098] The method 400 comprises the steps of: receiving 402 the one or more input powers Pin from the power grid 200; and distributing 402 and / or converting 404 the one or more input powers Pin between the first power output 112 and the one or more second power outputs 114 in a first output power Pouti and one or more second output powers Pout2.

[0099] According to embodiments of the disclosure the controller 120 may comprise one or more control devices / units arranged / configured / programmed with instruction to carry out one or more of the steps of the method 400.

[0100] Fig. 7 illustrates examples of mining / construction vehicles that may be used with the first power interface 100 or comprising the first power interface 100. The mining / construction vehicle 300 may be any type of electrified vehicle used in a mining and / or construction environment / site such as e.g., a drill rig, a truck, a loader, a digging machine, etc. With reference to Fig. 7, the mining / construction vehicle 300 may e.g., be a drill rig, a loading, hauling and dumping (LHD) machine or a mine truck but is not limited thereto. Finally, it should be understood that the invention is not limited to the embodiments described above, but also relates to and incorporates all embodiments within the scope of the appended independent claims.

Claims

CLAIMS1. A first power interface (100) for electrically connecting a first mining / construction vehicle (300) to a power grid (200), the first power interface (100) comprising: one or more power inputs (102) configured to be electrically connected or disconnected to the power grid (200) and receive one or more input powers (Pin) from the power grid (200); a first power output (112) configured to be electrically connected or disconnected to a first electrical device (310) of the first mining / construction vehicle (300); one or more second power outputs (114) configured to be electrically connected or disconnected to one or more second electrical devices (320) of the first mining / construction vehicle (300); and a controller (120) configured to distribute and / or convert the one or more input powers (Pin) between the first power output (112) and the one or more second power outputs (114) in a first output power (Pouti) and one or more second output powers (Pout2).

2. The first power interface (100) according to claim 1 , wherein the controller (120) is configured to: distribute and / or convert the one or more input powers (Pin) between the first power output (112) and the one or more second power outputs (114) based on a first measurement (M1 ), the first measurement (M1 ) comprising measurements of one or more input lines (210) connected to the one or more power inputs (102).

3. The first power interface (100) according to claim 2, wherein the first measurement (M1 ) comprises any measurement in a group comprising: a voltage, a change of voltage, a current, a change of current, a frequency, a change of frequency, an active power, a change of active power, a reactive power, and a change of reactive power.

4. The first power interface (100) according to any one of the preceding claims, wherein the controller (120) is configured to: distribute and / or convert the one or more input powers (Pin) between the first power output (112) and the one or more second power outputs (114) based on a power grid information (PGI).

5. The first power interface (100) according to claim 4, wherein the power grid information (PGI) comprises any information in a group comprising: a capacity, a fault, and a maintenance.

6. The first power interface (100) according to any one of the preceding claims, wherein the controller (120) is configured to: distribute and / or convert the one or more input powers (Pin) between the first power output (112) and the one or more second power outputs (114) based on one or more second measurements (M2), the one or more second measurement (M2) comprising measurements of a first output line (332) connected to the first power output (112) and one or more second output lines (334) connected to the one or more second power outputs (114).

7. The first power interface (100) according to claim 6, wherein the second measurement (M2) comprises any measurement in a group comprising: a voltage, a change of voltage, a current, a change of current, a frequency, and a change of frequency.

8. The first power interface (100) according to any one of the preceding claims, wherein the controller (120) is configured to: distribute and / or convert the one or more input powers (Pin) between the first power output (112) and the one or more second power outputs (114) based on an electrical device information (EDI) associated with the first electrical device (310) and / or the one or more second electrical devices (320).

9. The first power interface (100) according to claim 8, wherein the electrical device information (EDI) is any information in a group comprising: a state of charge, a task, a power requirement, and a power consumption time period.

10. The first power interface (100) according to any one of the preceding claims, wherein the first electrical device (310) and the one or more second electrical devices (320) are any of a power consumer or an energy storage unit.

11. The first power interface (100) according to claim 10, wherein the power consumer is an electrical machine and the energy storage unit is a battery.

12. The first power interface (100) according to any one of the preceding claims, comprising: two or more second power outputs (114).

13. The first power interface (100) according to claim 12, wherein at least one second power output (114) is configured to be connected or disconnected to a second mining / construction vehicle (300').

14. The first power interface (100) according to claim 12 or 13, wherein at least one second power output (114) is configured to be connected or disconnected to a power input (102') of a second power interface (100').

15. The first power interface (100) according to any one of the preceding claims, comprising: a switching device (130) configured to be controlled by the controller (120) for distributing the one or more input powers (210) between the first power output (112) and the one or more second power outputs (114); and / or a power conversion device (140) configured to be controlled by the controller (120) for converting the one or more input powers (Pin) between the first power output (112) and the one or more second power outputs (114).

16. The first power interface (100) according to any one of the preceding claims, wherein the one or more input powers (Pin) are DC power or AC power.

17. The first power interface (100) according to any one of the preceding claims, wherein the first output power (Pouti) and the one or more second output powers (Pout2) are DC power or AC power.

18. The first power interface (100) according to any one of the preceding claims, wherein:the one or more power inputs (102) comprises one or more input plug-in / plug-out means (106) for connecting or disconnecting the power input (102) to or from the power grid (200); the first power output (112) comprises an output plug-in / plug-out means for connecting or disconnecting the first power output (112) to or from the first mining / construction vehicle (300); and the one or more second power outputs (114) comprise one or more output plug- in / plug-out means for connecting or disconnecting the one or more second power outputs (114) to or from the first mining / construction vehicle (300).

19. A first mining / construction vehicle (300) comprising a first power interface (100) according to any one of the preceding claims.

20. The first mining / construction vehicle (300) according to claim 19, wherein the first power interface (100) is attached at the first mining / construction vehicle (300).

21. A method (400) for a power interface (100) for electrically connecting a first mining / construction vehicle (300) to a power grid (200), the first power interface (100) comprising: one or more power inputs (102) configured to be electrically connected or disconnected to the power grid (200) and receive one or more input powers (PIn) from the power grid (200); a first power output (112) configured to be electrically connected or disconnected to a first electrical device (310) of the first mining / construction vehicle (300); one or more second power outputs (114) configured to be electrically connected or disconnected to one or more second electrical devices (320) of the first mining / construction vehicle (300); wherein the method (400) comprises: receiving (402) the one or more input powers (PIn) from the power grid (200); and distributing (404) and / or converting (406) the one or more input powers (Pin) between the first power output (112) and the one or more second power outputs (114) in a first output power (Pouti) and one or more second output powers (Pout2).

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