A power distribution arrangement

Abstract

The disclosure relates to a power distribution arrangement for flexible power distribution The power distribution arrangement comprise a first input configured to be coupled to a first power source for receiving a first input power from the first power source; a first output configured to be coupled to a first load of a mining / construction machine; a second output configured to be coupled to a second load of a mining / construction machine; and a switching network and at least one power conversion device coupled to each other between the first input, the first output and the second output. The power distribution arrangement further comprises a control device which is configured to set the switching network in a first switching configuration and in a second switching configuration. In the first switching configuration, the first input is directly coupled to the first output and / or the second output in at least one first electrical path. In second switching configuration, the first input is coupled to the first output and / or the second output via the power conversion device in at least one second electrical path. Furthermore, the disclosure also relates to a corresponding method and a mining / construction machine comprising such a power distribution arrangement.

Description

[0001] A POWER DISTRIBUTION ARRANGEMENT

[0002] Technical Field

[0003] The disclosure relates to a power distribution arrangement for a mining / construction machine. Furthermore, the disclosure also relates to a corresponding method and a mining / construction machine comprising such a power distribution arrangement.

[0004] Background

[0005] Electrified mining / construction machines and vehicles provide an opportunity to reduce the environmental footprint and create a healthier work environment in mining / construction environments.

[0006] The electrified mining / construction machine is driven by one or more electric motors which in turn may be powered by an electric grid system and / or an on-board electrical storage system (ESS) comprising e.g., battery packs etc. Compared to diesel machines, the electrified mining / construction machines are emission free and can hence bring considerable savings, especially for ventilation and cooling in mining / construction environments.

[0007] However, the electrified mining / construction machines need electrical power for their functioning and operation. That is, for powering electrical motors, batteries, etc. of the electrified mining / construction machines. In this respect the electrical loads of the mining / construction machine may be powered by a power distribution arrangement.

[0008] Such a power distribution arrangement may be a circuit arrangement comprising an input for receiving power from a power source such as a power grid. The power distribution arrangement further comprises an output for feeding loads of a mining / construction machine. Conventional power distribution arrangements lack flexibility regarding how the power is feed to the loads.

[0009] Summary

[0010] An objective of embodiments of the disclosure is to provide a solution which mitigates or solves the drawbacks of conventional solutions. Another objective of embodiments of the disclosure is to provide flexible power distribution within mining / construction machines.

[0011] According to a first aspect of the disclosure, the above mentioned and other objectives are achieved with a power distribution arrangement for a mining / construction machine, the power distribution arrangement comprising: a first input configured to be coupled to a first power source for receiving a first input power from the first power source; a first output configured to be coupled to a first load of a mining / construction machine; a second output configured to be coupled to a second load of a mining / construction machine; a switching network and at least one power conversion device coupled to each other between the first input, the first output and the second output; and a control device configured to: set the switching network in a first switching configuration in which the first input is directly coupled to the first output and / or the second output in at least one first electrical path; and set the switching network in a second switching configuration in which the first input is coupled to the first output and / or the second output via the power conversion device in at least one second electrical path.

[0012] An advantage with a power distribution arrangement according to the first aspect is that flexible power distribution, via a direct electrical path (i.e., first path) or an indirect electrical path (i.e., second path), from the power source to the loads are provided. The direct electrical path provides unconverted power from source to the load(s) while the indirect electrical path provides a converted power to the load(s) from the power conversion device.

[0013] In an implementation form of a power distribution arrangement according to the first aspect, the first electrical path is configured to provide the first input power directly from the first input to the first output and / or the second output; and the second electrical path is configured to provide a first output power from the power conversion device to the first output and / or the second output.

[0014] In an implementation form of a power distribution arrangement according to the first aspect, the power distribution arrangement comprises: a second input configured to be coupled to a second power source for receiving a second input power from the second power source; and wherein the control device is configured to: set the switching network in a third switching configuration in which the second input is directly coupled to the first output and / or the second output in at least one third electrical path, and set the switching network in a fourth switching configuration in which the second input is coupled to the first output and / or the second output via the power conversion device in at least one fourth electrical path.

[0015] An advantage with this implementation form is that even more flexibility in the power distribution is provided. This means that each load may be fed with a suitable power with desired power sharing among the power sources. A further advantage with this implementation form is that one or more redundant power sources are provided which means that the loads may be fed with power even at power source failure or power source limit. Thereby, stable power distribution to the loads is possible at such events.

[0016] In an implementation form of a power distribution arrangement according to the first aspect, the third electrical path is configured to provide the second input power directly from the second input to the first output and / or the second output; and the fourth electrical path is configured to provide a second output power from the power conversion device to the first output and / or the second output.

[0017] In an implementation form of a power distribution arrangement according to the first aspect, the control device is configured to: set the switching network in a fifth switching configuration in which the first input is coupled to the second input via the power conversion device, or vice versa, in a fifth electrical path. An advantage with this implementation form is that the power sources may exchange power between each other with a converted power delivered by the power conversion device. The converted power may be converted in terms of voltage, current, frequency, etc.

[0018] In an implementation form of a power distribution arrangement according to the first aspect, the control device is configured to: set the switching network in a sixth switching configuration in which the first input is directly coupled to the second input, or vice versa, in a sixth electrical path.

[0019] An advantage with this implementation form is that the power sources may charge or discharge each other via a direct electrical path.

[0020] In an implementation form of a power distribution arrangement according to the first aspect, the control device is configured to: set the switching network in any of its switching configurations based on an electrical measurement at an output of the first power source and / or at an output of the second power source.

[0021] An advantage with this implementation form is that the control device uses electrical measurements of the output power from the power sources for controlling the switching network and its switching configurations. By considering electrical measurements the power distribution can be further improved. For example, if a deviation in an electrical measurement is larger than a threshold value, the switching configuration may be changed so as to ensure reliable power supply to the load(s).

[0022] In an implementation form of a power distribution arrangement according to the first aspect, the electrical measurement comprises any of: a voltage measurement, a current measurement, and a power measurement.

[0023] These electrical measurements are relevant measurement parameters for controlling the switching network. In an implementation form of a power distribution arrangement according to the first aspect, the control device is configured to: set the switching network in any of its switching configurations based on any of: a forecast of the first power source, a forecast of the first load, a forecast of the second power source, and a forecast of the second load.

[0024] An advantage with this implementation form is that the control device uses forecast information for controlling the switching network and its switching configurations. By considering forecast information the switching configuration may be changed to ensure that sufficient future power supply will be available.

[0025] In an implementation form of a power distribution arrangement according to the first aspect, the control device is configured to: set the switching network in any of its switching configurations based on any of: a failure of the first power source, a failure of the first load, a failure of the second power source, and a failure of the second load.

[0026] An advantage with this implementation form is that the control device uses the failure information for controlling the switching network and its switching configurations. Thereby, reliable power supply may also be provided during failure of power sources and loads.

[0027] In an implementation form of a power distribution arrangement according to the first aspect, at least one of: the first power source is an AC power source or a DC power source, and the second power source is an AC power source or a DC power source.

[0028] In an implementation form of a power distribution arrangement according to the first aspect, the switching network comprises a plurality of controllable switches.

[0029] In an implementation form of a power distribution arrangement according to the first aspect, the switching network comprises: five controllable switches for the first to the fourth switching configurations, and six controllable switches for the fifth and the sixth switching configuration. An advantage with this implementation form is that the count of components in the switching network can be held low. Thus, the switching network can be produced at a low cost.

[0030] In an implementation form of a power distribution arrangement according to the first aspect, the power conversion device is configured to: receive an AC power and output a DC power, receive a DC power and output an AC power, receive a first DC power and output a second DC power, or receive a first AC power and output a second AC power.

[0031] According to a second aspect of the disclosure, the above mentioned and other objectives are achieved with a mining / construction machine comprising: a first load and a second load; and a power distribution arrangement according to any one of the preceding claims coupled to the first load and the second load.

[0032] According to a third aspect of the disclosure, the above mentioned and other objectives are achieved with a method for a power distribution arrangement, the power distribution arrangement comprising: a first input configured to be coupled to a first power source for receiving a first input power from the first power source; a first output configured to be coupled to a first load of a mining / construction machine; a second output configured to be coupled to a second load of a mining / construction machine; a switching network and at least one power conversion device coupled to each other between the first input, the first output and the second output; wherein the method comprises: setting the switching network in a first switching configuration in which the first input is directly coupled to the first output and / or the second output in at least one first electrical path; and setting the switching network in a second switching configuration in which the first input is coupled to the first output and / or the second output via the power conversion device in at least one second electrical path. The method may be adapted in accordance with the above-mentioned embodiments of the power circuit. The advantages of the method are the same as the advantages of the corresponding embodiments of the power distribution arrangement.

[0033] 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.

[0034] Further applications and advantages of embodiments of the disclosure will be apparent from the following detailed description.

[0035] Brief Description of the Drawings

[0036] The appended drawings are intended to clarify and explain different embodiments of the disclosure, in which:

[0037] Fig. 1 shows a power distribution arrangement according to embodiments of the disclosure;

[0038] Fig. 2 and 3 show a power distribution arrangement comprising one input according to further embodiments of the disclosure;

[0039] Fig. 4 to 7 show a power distribution arrangement comprising two inputs according to embodiments of the disclosure;

[0040] Fig. 8 illustrates a control device according to embodiments of the disclosure;

[0041] Fig. 9 shows a power distribution arrangement comprising a plurality of power conversion devices according to embodiments of the disclosure;

[0042] Fig. 10 shows a method according to embodiments of the disclosure; and

[0043] Fig. 11 illustrates mining / construction machines according to embodiments of the disclosure.

[0044] Detailed Description

[0045] Fig. 1 shows a power distribution arrangement 100 for a mining / construction machine 300 according to embodiments of the disclosure. The herein disclosed power distribution arrangement 100 comprises a first input 102 configured to be coupled to a first power source 200 for receiving a first input power IP1 from the first power source 200. The power distribution arrangement 100 further comprises a first output 104 configured to be coupled to a first load 310 of a mining / construction machine 300, and also comprises a second output 104' configured to be coupled to a second load 310' of a mining / construction machine 300. The first 310 and second 310' loads may be arranged in the same or different mining / construction machines.

[0046] The power distribution arrangement 100 further comprises a switching network 110 and at least one power conversion device 120 which are coupled to each other between the first input 102, the first output 104 and the second output 104' to form an intermediate power transfer / distribution electrical circuit between the input 102 and the outputs 104, 104'.

[0047] The power distribution arrangement 100 further comprises a control device 130 configured to set the switching network 1 10 in a first switching configuration S1 in which the first input 102 is directly coupled to the first output 104 and / or the second output 104' in at least one first electrical path P1 ; and further configured to set the switching network 1 10 in a second switching configuration S2 in which the first input 102 is coupled to the first output 104 and / or the second output 104' via the power conversion device 120 in at least one second electrical path P2.

[0048] Therefore, the first electrical path P1 is configured to provide the first input power IP1 directly from the first input 102 to the first output 104 and / or to the second output 104'; and the second electrical path P2 is configured to provide a first output power OP1 from the power conversion device 120 to the first output 104 and / or the second output 104'.

[0049] Hence, one or more so-called direct electrical paths and one or more indirect or power converted electrical paths are provided between one or more inputs and one or more outputs according to embodiments of the disclosure. The direct electrical path may be understood such that the input power from the power source is provided to the load(s) via a direct electrical coupling / connected in the power distribution arrangement 100. Thus, the output power to the load(s) is substantially the same as the input power received from the power source 200 since there may be some small power losses in the power transfer from the input 102 and the outputs 104, 104'. However, the output power in the power converted path is substantially different to the input power received from the power source 200, i.e., the power is converted by the power conversion device 120. The power conversion may relate to conversion in voltage, current, frequency, etc. Another consideration is that the power in the power converted path can be controlled by the use of power conversion device. This is contrary to the direct path in which the power provided to the load(s) is the power of the power source 200 and can therefore not be controlled by the power distribution arrangement 100.

[0050] It is also noted that one or both of the outputs may be directly connected to the input in the first switching configuration S1 , and correspondingly one or both of the outputs may be connected to the input via the power conversion device 120 in the second switching configuration S2. This naturally means that one input 102 may be connected in a direct electrical path and another output in a power converted electrical path. In case of more than two outputs, these multiple outputs may be connected to the input 102 in any of the direct electrical path and the power converted electrical path thus forming all possible electrical connection combinations thereof.

[0051] Fig. 2 and 3 show a power distribution arrangement 100 comprising one input according to embodiments of the disclosure. The switching network 1 10 in these embodiments comprises of a plurality switches (SWs) or breakers. Each switch or breaker is configured to be in a conductive state in which an electrical current can pass the switch or in a non-conductive state in which no electrical current can pass the switch. In the illustrated examples, a black box indicates a switch in its conductive state and a white box indicates a switch in its non-conductive state. The switches and breakers may be any suitable units and devices such as mechanical or semiconductor switches, breakers or disconnectors.

[0052] In Fig. 2a and 2b, SW1 , SW2 and SW5 are conductive while SW3 and SW4 are non- conductive. Hence, a first electrical path P1 is formed between the input 102 and the first output 104 as shown in Fig. 2b. Further, a second electrical path P2 is formed between the input 102 and the second output 104' via the power conversion device 120 as also shown in Fig. 2b. In Fig. 3a and 3b, SW2, SW3 and SW4 are conductive while SW1 and SW5 are non- conductive. Hence, a first electrical path P1 is formed between the input 102 and the second output 104' as shown in Fig. 3b. Further, a second electrical path P2 is formed between the input 102 and the first output 104 via the power conversion device 120 as also shown in Fig. 3b.

[0053] Fig. 4 to 7 show a power distribution arrangement 100 having two inputs according to further embodiments of the disclosure. The power distribution arrangement 100 hence also comprises a second input 102' configured to be coupled to a second power source 200' for receiving a second input power IP2 from the second power source 200'. The first power source 200 and the second power source 200' are different power sources. In these examples, the switching network 1 10 may comprise six switches / breakers as shown in the mentioned Figs.

[0054] In Fig. 4a and 4b, the control device 120 is therefore configured to set the switching network 110 in a third switching configuration S3 in which the second input 102' is directly coupled to the first output 104 and / or the second output 104' in at least one third electrical path P3. Thus, the third electrical path P3 is configured to provide the second input power IP2 directly from the second input 102' to the first output 104 and / or the second output 104'.

[0055] With reference to Fig. 4b, SW1 , SW2, SW3 and SW6 are conductive while SW4 and SW5 are non-conductive. Hence, a third electrical path P3 is formed from the first input 102 to the second output 104' and from the second input 102' to the first output 104. It is also noted that the power from the first power source 200 and the second power source 200' together forms a power bus.

[0056] In Fig. 5a and 5b, the control device 130 is configured to set the switching network 1 10 in a fourth switching configuration S4 in which the second input 102' is coupled to the first output 104 and / or the second output 104' via the power conversion device 120 in at least one fourth electrical path P4. Thus, the fourth electrical path P4 is configured to provide a second output power OP2 from the power conversion device 120 to the first output 104 and / or the second output 104'. With reference to Fig. 5b, SW1 , SW3, SW4 and SW6 are conductive while SW2 and SW5 are non-conductive. Hence, a fourth electrical path P4 is formed from the second input 102' to the first output 104. It may be noted that in this exemplary switching network configuration a first path P1 is also formed from the first input 102 to the first output 104 and from the second input 102' to the second output 104', respectively.

[0057] Furthermore, when having two or more inputs 102, 102' the switching network 1 10 may be configured to interconnect the two or more inputs 102, 102' to each other directly or via one or more power conversion devices 120. Fig. 6 and 7 therefore illustrates such cases.

[0058] In Fig. 6a and 6b, the control device 130 is configured to set the switching network 1 10 in a fifth switching configuration S5 in which the first input 102 is coupled to the second input 102' via the power conversion device 120, or vice versa, in a fifth electrical path P5.

[0059] With reference to Fig. 6b, SW3 is conductive while the other switches of the switching network 110 are non-conductive. Hence, a fifth path P5 is formed from the first input 102 to the second input 102' via the power conversion device 120.

[0060] In Fig. 7a and 7b, the control device 130 is on the other hand configured to set the switching network 110 in a sixth switching configuration S6 in which the first input 102 is directly coupled to the second input 102', or vice versa, in a sixth electrical path P6.

[0061] With reference to Fig. 7b, SW2 and SW3 are conductive while the remaining switches of the switching network 1 10 are non-conductive. Hence, a sixth path P6 is formed from the first input 102 to the second input 102', or vice versa.

[0062] In the fifth S5 and sixth S6 switching configuration, the power sources may charge or discharge each other via a direct path or a power converted path therebetween. In the direct path, the power sources should be of the same type such as both being DC sources. In the power converted path the power sources may be of different types since the power sources conversion device 120 can adapt the power between the power sources so that charging and discharging is possible. It may have been noted that the switching network 110 comprises a plurality of controllable switches or breakers 112. In embodiments of the invention, the switching network 110 may comprise five controllable switches 1 12 for the first S1 to the fourth S4 switching configurations, and six controllable switches 1 12 for the fifth S5 and the sixth S6 switching configuration. This may in cases be understood such that these numbers of switches are limiting when designing the switching network 1 10, i.e., the maximum number being five or six switches. This means that the circuit count of components in the switching network 1 10 can be held low resulting in cost effective implementation and production.

[0063] Fig. 8 illustrates a control device 130 according to embodiments of the disclosure. The control device herein disclosed may be any suitable control device for controlling the components, unit, elements and devices of the power distribution arrangement 100. Therefore, the control device 130 comprises components, units, devices, connections, buses, control interfaces and communication interfaces needed for perform its functions.

[0064] For controlling the switching network 1 10, the control device 130 may use input parameters and / or input information in a control algorithm for outputting control signals Ctrl_1 , Ctrl_2 , ... , Ctrl_n for controlling the switching network 1 10. The input parameters may be compared to corresponding threshold values for determining whether to change a switching configuration or not of the switching network 1 10. The control signals Ctrl_1 , Ctrl_2,... , Ctrl_n may be wired or wireless control signals and may conform to protocols and standards known in the art.

[0065] Thus, in embodiments of the invention, the control device 130 is configured to set the switching network 110 in any of its switching configurations S1 , S2, ... , Sn based on an electrical measurement M1 , M2, ... , Mn at an output 202 of the first power source 200 and / or at an output 202' of the second power source 200' depending on how many power sources that are connected.

[0066] The electrical measurement M1 , M2, ... , Mn may comprises any of: a voltage measurement, a current measurement, and a power measurement. By using measurement information when controlling the switching network 1 10, the power distribution between the power sources and the loads can be improved. For example, the switching configuration may be changed so as to adapt to changes in power delivered by the power sources and changes in power levels and power patterns of the loads derived from electrical measurement.

[0067] In examples, the switching network 110 is set in any of its switching configurations S1 , S2, ... , Sn based on any of: a forecast of the first power source 200, a forecast of the first load 310, a forecast of the second power source 200', and a forecast of the second load 31 O'. The forecast information may relate to forecast about delivered power of the power sources and forecast of consumed power of the loads. By using forecast information when controlling the switching network 1 10, the power distribution between the power sources and the loads can be improved for future scenarios. For example, the switching configuration may be changed so as to adapt to coming power consumption levels and patterns of the loads in view of coming delivered power of the power sources derived from forecast information.

[0068] In further examples, the switching network 110 is set in any of its switching configurations S1 , S2,... , Sn based on any of: a failure of the first power source 200, a failure of the first load 310, a failure of the second power source 200', and a failure of the second load 310'. By using failure information when controlling the switching network 1 10, the power distribution between the power sources and the loads can be improved. For example, the switching configuration may be changed so as to adapt to failure in the power sources and the loads derived from failure information.

[0069] It may be noted that the previously mentioned measurement information, forecast information and failure information may be combined for controlling the switching network 1 10. Furthermore, also other input information may be used by the control device 130 as input data for controlling the switching network 1 10.

[0070] Fig. 9 shows a power distribution arrangement 100 comprising a plurality of power conversion devices 120 according to embodiments of the disclosure so as to provide flexibility in power types and power levels herein used. The plurality of power conversion devices 120 may be interconnected in the switching network such that the electrical path through the power distribution arrangement 100 can be controlled between its inputs 102 and outputs 104 thereby being able to provide a number of different power paths.

[0071] Depending on the power source and the type of load, each power conversion device 120 may be configured to: receive an AC power and output a DC power, receive a DC power and output an AC power, receive a first DC power and output a second DC power, or receive a first AC power and output a second AC power. By setting the switching network 110 in different switching configurations all possible power types can be fed to the loads 310.

[0072] The first power source 200 may be an AC power source or a DC power source, and the second power source 200' may be an AC power source or a DC power source according to embodiments of the invention. In particular, the first power source may be a power grid and one or more second power sources may be energy storage units such as batteries and power conductors.

[0073] Fig. 10 shows a method according to embodiments of the disclosure. The method is for a power distribution arrangement 100 disclosed herein thus the power distribution arrangement 100 comprises: a first input 102 configured to be coupled to a first power source 200 for receiving a first input power IP1 from the first power source 200; a first output 104 configured to be coupled to a first load 310 of a mining / construction machine 300; a second output 104' configured to be coupled to a second load 310' of a mining / construction machine 300; a switching network 1 10 and at least one power conversion device 120 coupled to each other between the first input 102, the first output 104 and the second output 104'. The method 400 comprises: setting 402 the switching network 1 10 in a first switching configuration S1 in which the first input 102 is directly coupled to the first output 104 and / or the second output 104' in at least one first electrical path P1 ; and setting 404 the switching network 1 10 in a second switching configuration S2 in which the first input 102 is coupled to the first output 104 and / or the second output 104' via the power conversion device 120 in at least one second electrical path P2. Embodiments of the method 400 may fully correspond to all embodiments of the power distribution arrangement 100 herein disclosed.

[0074] According to embodiments of the disclosure the control device 130 may comprise one or more control devices / units arranged / configured / programmed with instruction to carry out the method 400.

[0075] Fig. 11 illustrates examples of a mining / construction machine that may be used with the present power distribution arrangement 100. The mining / construction machine 300 comprises a first load 310 and a second load 31 O', and also a power distribution arrangement 100 according to any one of the preceding claims coupled to the first load 310 and the second load 31 O'. Thereby, the loads may be powered so as to being able to operate by receiving power from one or more power sources via the power distribution arrangement 100 interconnected therebetween.

[0076] The loads 310, 310' herein discussed are any loads within or part of the mining / construction machine 300. Such loads 310, 310' are configured to consume electrical power for its functioning. For example, compressors, drive lines, actuators, and drills.

[0077] The mining / construction machine 300 may be any type of electrified machine or 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.

[0078] With reference to Fig. 1 1 , the mining / construction machine 300 may e.g., be a drill rig, a loading, hauling and dumping (LHD) machine or a mine truck but is not limited thereto.

[0079] 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 power distribution arrangement (100) for a mining / construction machine (300), the power distribution arrangement (100) comprising: a first input (102) configured to be coupled to a first power source (200) for receiving a first input power (IP1 ) from the first power source (200); a first output (104) configured to be coupled to a first load (310) of a mining / construction machine (300); a second output (104') configured to be coupled to a second load (31 O') of a mining / construction machine (300); a switching network (1 10) and at least one power conversion device (120) coupled to each other between the first input (102), the first output (104) and the second output (104'); and a control device (130) configured to: set the switching network (1 10) in a first switching configuration (S1 ) in which the first input (102) is directly coupled to the first output (104) and / or the second output (104') in at least one first electrical path (P1 ); and set the switching network (1 10) in a second switching configuration (S2) in which the first input (102) is coupled to the first output (104) and / or the second output (104') via the power conversion device (120) in at least one second electrical path (P2).

2. The power distribution arrangement (100) according to claim 1 , wherein the first electrical path (P1 ) is configured to provide the first input power (IP1 ) directly from the first input (102) to the first output (104) and / or the second output (104'); and the second electrical path (P2) is configured to provide a first output power (OP1 ) from the power conversion device (120) to the first output (104) and / or the second output (104').

3. The power distribution arrangement (100) according to claim 1 or 2, comprising: a second input (102') configured to be coupled to a second power source (200') for receiving a second input power (IP2) from the second power source (200'); and wherein the control device (130) is configured to:set the switching network (1 10) in a third switching configuration (S3) in which the second input (102') is directly coupled to the first output (104) and / or the second output (104') in at least one third electrical path (P3), and set the switching network (110) in a fourth switching configuration (S4) in which the second input (102') is coupled to the first output (104) and / or the second output (104') via the power conversion device (120) in at least one fourth electrical path (P4).

4. The power distribution arrangement (100) according to claim 3, wherein the third electrical path (P3) is configured to provide the second input power (IP2) directly from the second input (102') to the first output (104) and / or the second output (104'); and the fourth electrical path (P4) is configured to provide a second output power (OP2) from the power conversion device (120) to the first output (104) and / or the second output (104').

5. The power distribution arrangement (100) according to claim 3 or 4, wherein the control device (130) is configured to: set the switching network (1 10) in a fifth switching configuration (S5) in which the first input (102) is coupled to the second input (102') via the power conversion device (120), or vice versa, in a fifth electrical path (P5).

6. The power distribution arrangement (100) according to any of claims 3 to 5, wherein the control device (130) is configured to: set the switching network (1 10) in a sixth switching configuration (S6) in which the first input (102) is directly coupled to the second input (102'), or vice versa, in a sixth electrical path (P6).

7. The power distribution arrangement (100) according to any one of the preceding claims, wherein the control device (130) is configured to: set the switching network (110) in any of its switching configurations (S1 , S2, ... , Sn) based on an electrical measurement (M1 , M2, ... , Mn) at an output (202) of the first power source (200) and / or at an output (202') of the second power source (200').

8. The power distribution arrangement (100) according to claim 7, wherein the electrical measurement (M1 , M2, ... , Mn) comprises any of: a voltage measurement, a current measurement, and a power measurement.

9. The power distribution arrangement (100) according to any one of the preceding claims, wherein the control device (130) is configured to: set the switching network (110) in any of its switching configurations (S1 , S2, ... , Sn) based on any of: a forecast of the first power source (200), a forecast of the first load (310), a forecast of the second power source (200'), and a forecast of the second load (31 O').

10. The power distribution arrangement (100) according to any one of the preceding claims, wherein the control device (130) is configured to: set the switching network (110) in any of its switching configurations (S1 , S2, ... , Sn) based on any of: a failure of the first power source (200), a failure of the first load (310), a failure of the second power source (200'), and a failure of the second load (310').1 1. The power distribution arrangement (100) according to any one of the preceding claims, wherein at least one of: the first power source (200) is an AC power source or a DC power source, and the second power source (200') is an AC power source or a DC power source.

12. The power distribution arrangement (100) according to any one of the preceding claims, wherein the switching network (1 10) comprises a plurality of controllable switches (112).

13. The power distribution arrangement (100) according to claim 9, wherein the switching network (1 10) comprises: five controllable switches (112) for the first (S1 ) to the fourth (S4) switching configurations, and six controllable switches (1 12) for the fifth (S5) and the sixth (S6) switching configuration.

14. The power distribution arrangement (100) according to any one of the preceding claims, wherein the power conversion device (120) is configured to: receive an AC power and output a DC power, receive a DC power and output an AC power, receive a first DC power and output a second DC power, or receive a first AC power and output a second AC power.

15. A mining / construction machine (300) comprising: a first load (310) and a second load (31 O'); and a power distribution arrangement (100) according to any one of the preceding claims coupled to the first load (310) and the second load (31 O').

16. A method (400) for a power distribution arrangement (100), the power distribution arrangement (100) comprising: a first input (102) configured to be coupled to a first power source (200) for receiving a first input power (IP1 ) from the first power source (200); a first output (104) configured to be coupled to a first load (310) of a mining / construction machine (300); a second output (104') configured to be coupled to a second load (310') of a mining / construction machine (300); a switching network (1 10) and at least one power conversion device (120) coupled to each other between the first input (102), the first output (104) and the second output (104'); wherein the method (400) comprises: setting (402) the switching network (1 10) in a first switching configuration (S1 ) in which the first input (102) is directly coupled to the first output (104) and / or the second output (104') in at least one first electrical path (P1 ); and setting (404) the switching network (1 10) in a second switching configuration (S2) in which the first input (102) is coupled to the first output (104) and / or the second output (104') via the power conversion device (120) in at least one second electrical path (P2).

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