Method for carrying out the switching of at least two switching means of an operating means and drive system for at least two switching means in an operating means - Patents.com

Abstract

1. A method for performing a switching of a first switching means 17 or at least one second switching means 18, 19 of an operating means 20, characterized in that the method comprises the steps of: receiving a switching signal by a control unit 10; selecting, using the control unit 10, for switching, the first switching means 17 or the at least one second switching means 18, 19 based on the switching signal; querying, by the control unit 10, at least one parameter of the first switching means 17 or the at least one second switching means 18, 19; checking a locking condition based on the at least one queried parameter for the first switching means 17 or checking a locking condition for the at least one second switching means 18, 19; and performing switching using the selected first switching means 17 or at least one second switching means 18, 19 if the corresponding locking condition is fulfilled.

Description

[Technical field]

[0001] The present invention relates to a method for implementing the switching of at least two switching means in an operating means.

[0002] Furthermore, the invention relates to a drive system for at least two switching means of an operating means. [Background technology]

[0003] US 6,399,433 discloses an on-load tap changer with a motor drive for switching between the winding taps of a tapped transformer. The motor drive is used to drive a drive shaft. The rotational movement of the motor drive is provided via two switchable coupling devices to a first drive shaft assigned to a selector and to a second drive shaft assigned to a load change switch. The selector and the load change switch are configured in such a way that they can be switched between each other, independently of the introduction of the rotational movement of the motor drive.

[0004] Voltage control in energy transmission and distribution networks requires the integration of different types of switches into transformers. Typically, on-load tap changers consisting of load switches and selectors, driven by a common drive, are integrated into the transformers. Both the operation and assembly of the load switches are necessarily linked to the selectors. It is not possible to completely match the operation of the selectors and the load switches. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] German Patent Publication No. 102014110732 Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE DISCLOSURE In view of the above, it is an object of the present invention to provide a method for implementing a switching means of an operating means, which improves the safety and reliability of the switching means and the operating means.

[0007] Another object of the present invention is to provide a drive system for at least two switching means of an operating means, which increases the safety and reliability of the switching means and the operating means during the switching process. [Means for solving the problem]

[0008] The problem is solved by a method for effecting a switching of a first switching means and at least one second switching means of an operating means having the features of claim 1.

[0009] The above-mentioned further object is achieved by a drive system for at least two switching means of an actuating means having the features of claim 9.

[0010] The method according to the invention is characterized in that a switching of a first switching means or at least one second switching means of an operating means is performed. For this purpose, a control unit receives a switching signal. The control unit is connected in communication with a power unit connected to a motor driving the switching means. With the help of the control unit, a first switching means is selected for switching. At least one parameter of the first switching means or at least one second switching means is queried by the control unit. On the basis of the at least one queried parameter of the selected first switching means or at least one second switching means, a locking condition is checked. If the corresponding locking condition is fulfilled, the switching is performed with the selected first switching means or with the selected second switching means.

[0011] To perform the switching, the power unit is controlled by the control unit, whereby the selected first switching means or at least one selected second switching means is operated. Depending on the switching, the first switching means is operated via a drive shaft connected to the first motor, and the at least one second switching means is operated via a drive shaft of the second motor, respectively. Furthermore, the selected first switching means and the at least one selected second switching means can be operated.

[0012] The method according to the invention is based on the idea that the operating means, e.g. a transformer, has at least one on-load tap changer, which is divided into its individual switching means or switching means groups. These individual switching means can be driven separately and individually by dedicated motors. Before the switching means in the operating means are operated or switched and the switching is carried out, a locking condition is checked. For this check, at least one parameter is queried. If the queried parameter satisfies the locking condition, the switching is carried out.

[0013] At least one parameter of the first switching means and of the at least one second switching means can for example be calculated by a feedback system, whereby a feedback system is assigned to the first switching means and a separate feedback system is assigned to each of the at least one second switching means.

[0014] In operating means, in particular transformers, which have two switching means, in particular a load changeover switch and a selector, it is checked, for example by the control unit, in what position the selector is in, whereby the parameter relating to the locking condition to be checked is the position of the selector, calculated by means of a feedback system of the selector.

[0015] By means of a respective feedback system assigned to each of the switching means present, at least one parameter for switching the switching means respectively can be calculated. The parameter calculated by the feedback system is the attitude or position of the respective switching means. The parameter calculated by the feedback system can also indicate whether a switching means required for a selected or specific switching is about to be operated, in which case the operation of the corresponding switching means cannot be carried out. Furthermore, the parameter can be a movement state which indicates whether a switching means is about to be operated.

[0016] The feedback system can be configured in a variety of ways: it can be an encoder, a multi-turn rotary encoder, a single-turn rotary encoder, a resolver, a switch, a microswitch, a sensor, a contact, etc. It will be apparent to one skilled in the art that this list of possible embodiments of the feedback system is not exhaustive.

[0017] The parameters to be queried can be determined arbitrarily or can be of any form. These parameters can be a feedback system in the motor of each switching means, a simple safety switch of the operating means or even a customer-specific release button. Furthermore, this feedback system can be part of the control device, which counts the switching or stops the time for switching and then provides the parameters to be queried regarding the locking condition. Likewise, the parameters can be obtained, for example, by a temperature sensor assigned to each of the switching means. Likewise, a safety switch that calculates the locking of the switchboard assigned to the operating means can participate in the parameters. For example, if the safety switch indicates that the switch box is open, the execution of the switching is not allowed. Likewise, it is clear to the person skilled in the art that this list of possible parameters involved in the calculation of the locking condition is not exhaustive.

[0018] The feedback system serves to determine the parameter required to check the lock condition, which depends on the feedback system. Depending on the embodiment, the parameter may be a value, a range of values, a simple signal, etc.

[0019] In a possible embodiment of the invention, the switching means can be grouped into switching means groups.

[0020] In a possible embodiment of the invention, the queried parameters of the first switching means and the at least one second switching means can be evaluated and combined in the control unit, and from the result of this evaluation or combination the control unit can control the first switching means or the first switching means and the at least one second switching means as required.

[0021] In a possible embodiment of the invention, a plurality of individual operating means can be provided, to each of said plurality of operating means a power unit can be assigned and each of them can be controlled by a common control unit, first switching means of said plurality of operating means are grouped into a first switching group, and at least one second switching means of said plurality of operating means are grouped into at least one second switching means group.

[0022] The invention discloses a drive system for at least two switching means of the operating means, the drive system having a first switching means connected via a drive shaft with a first motor. Furthermore, the drive system has at least one second switching means connected via a drive shaft with at least one second motor. A feedback system is respectively assigned to each of the first motor and the at least one second motor for calculating at least one parameter of the switching means. A control unit communicatively connected to the power unit calculates which of the at least one calculated parameter satisfies a locking condition in order to operate the first switching means by the first motor and to operate the at least one second switching means by the at least one second motor.

[0023] In a possible embodiment of the invention, the at least one second switching means comprises a second switching means connected to the second motor and a third switching means connected to the third motor.

[0024] It is advantageous to assign a dedicated motor to each of these switching means, thereby enabling a safe and reliable drive of the switching means compared to the prior art. Driving all switching means by one motor connected to the switching means via a rod and a coupling can be dispensed with. This also provides a way to digitally monitor the drive system for the operating means.

[0025] In one possible embodiment, a plurality of operating means can be assigned to the drive system. A power unit is assigned to each operating means. The power units are communicatively connected to a control unit. The first switching means of the plurality of operating means are grouped in a first switching means group. The at least one second switching means of the plurality of operating means is grouped in at least one second switching means group. A power unit can be assigned to each motor. However, it is also possible for one power unit to drive all motors.

[0026] In a possible embodiment of the invention, the at least one second switching means can be composed of one second switching means and one third switching means, in which case the second switching means are grouped in a second switching means group and the third switching means are grouped in a third switching means group.

[0027] In a possible embodiment of the present invention, the operating means may have one first switching means and a plurality of second switching means, each of which is connected to a second motor via a respective drive shaft, and these second switching means are grouped into a second switching means group.

[0028] These control units and / or power parts may each comprise a memory in which certain groups of switching means or positions of the switching means may be stored, which are assigned values ​​relating for example to the position of the drive shaft.

[0029] A possible embodiment of the drive system of the invention may comprise a first motor, a second motor and a third motor. These motors are driven, for example, via a transmission and a drive shaft. The control device of the drive system comprises, for example, a power section with an inverter for supplying energy to the motors in an open-loop or closed-loop controlled manner. The control unit serves to control the power section. The control unit is connected, for example, via a bus, to the power section. The drive system comprises a number of feedback systems functionally assigned to the drive shaft or to each motor. Each of these feedback systems may be an encoder system. Similarly, the encoder system may be part of a feedback system. These feedback systems or encoder systems are connected to the power section.

[0030] In one possible embodiment, the operating means may be a local network transformer, a transmission transformer or a distribution transformer. The switching means may be a load transfer switch, a selector, a preselector, a change-over switch or a multiple change-over switch. The parameter relating to the locking condition may be the attitude, the position, the movement state of the load transfer switch, the selector, the preselector, the change-over switch or the multiple change-over switch. The parameter may be configured as a value or a range of values. The parameter may be queried by or transmitted to the control unit. Several parameters may be combined into one parameter.

[0031] The first switching means can be configured as a single-phase or multi-phase load change-over switch. The second switching means can in particular be configured as a single-phase or multi-phase selector, pre-selector, change-over switch or multiple change-over switch.

[0032] The invention and its advantages will now be described in detail by way of example with reference to the attached drawings, whereby the invention is not limited to the illustrated embodiment, and the size ratios in the drawings do not always correspond to the actual size ratios, since some features are illustrated in a simplified form and other features are illustrated enlarged compared to other components to improve the illustration, in which: [Brief description of the drawings]

[0033] [Figure 1] FIG. 1 shows a schematic diagram of a possible embodiment of a drive system for at least one switching means in an operating means. [Diagram 2] FIG. 2 is a schematic diagram of another embodiment of a drive system for at least one switching means in an operating means; [Diagram 3] Schematic diagram of another embodiment of a drive system for at least one switching means in an operating means according to the invention, in which a plurality of operating means are provided [Figure 4]FIG. 2 is a schematic diagram of another possible embodiment of a drive system for at least one switching means in an operating means according to the invention; [Diagram 5] FIG. 1 is a flow diagram of a method for implementing the switching of the switching means in the operating means using the drive system according to the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] The same reference numerals have been used for the same or similarly acting components of the invention, and further, for ease of reading, only the reference numerals necessary to describe each figure have been shown in the individual figures.

[0035] 1 illustrates in particular an operating means 20 for energy transmission, which is a transformer. The operating means 20 comprises a first switching means 17 and a second switching means 18. A first motor 12 is connected to the first switching means 17 via a drive shaft 16. A second motor 13 is connected to the second switching means 18 via a drive shaft 16. Although the following description is limited to a transformer as the operating means 20 and a load changeover switch or selector as the switching means 17 or 18, this should not be interpreted as a limitation of the invention.

[0036] In the embodiment shown in Fig. 1, the first switching means 17 is configured as a load change switch. The second switching means 18 is configured as a selector. This load change switch (first switching means 17) is operated by means of a first motor 12. This motor 12 has a drive shaft 16 connected to the load change switch. This motor 12 furthermore has a first feedback system 6 by means of which the position of the first switching means 17 (load change switch) can be determined. This selector (second switching means 18) is operated by a second motor 13. This second motor 13 is also connected to the selector via a drive shaft 16. A second feedback system 7 dedicated to the second motor 13 is able to determine the position or tap position of the selector.

[0037] The control device 2 according to the invention comprises a control unit 10 connected via a drive unit 11 to the first motor 12 and the second motor 13 and therefore also to the first feedback system 6 and the second feedback system 7 of the first and second switching means 17 and 18. This control unit 10 receives signals for operating the first and second switching means 17 and 18, i.e. the load change switches and the selectors. Furthermore, in the control unit 10, the different values ​​of the respective feedback systems 6 and 7 are evaluated and integrated. The control unit 10, the first motor 12, the second motor 13, the feedback systems 6 and 7 as well as the drive unit 11 constitute the drive system 3 for the first switching means 16 or the second switching means 17 of the operating means 20.

[0038] During operation, the control device 2 receives switching signals. If, for example, the voltage in the power network falls, it must be adapted, for example by operating the load change switch or the load change switch and the selector. By using a selector with a corresponding connection of the windings of the transformer, the control range of the transformer is expanded. After receiving a signal that the voltage must be changed, it is first determined whether only the load change switch must be operated or whether the load change switch and the selector must be operated in sequence. After it has been determined that only the load change switch must be operated, the locking condition defined between the selector and the load change switch is checked / queried. For example, when the selector is about to be operated, the operation of the load change switch is not allowed. This check is performed in the form that the second feedback system 7 of the second motor 13 of the second switching means 18 (selector) informs the control unit 10 of the current status or transmits parameters. In this case, the position or attitude of the second switching means 18 (selector) is determined and transmitted by the second feedback system 7. Furthermore, the second feedback system 7 signals whether the second switching means 18 (selector) is about to be operated at that time. If the calculated parameters fulfill the locking condition, the operation of the load change switch is carried out. If the locking condition is not fulfilled, the load change switch is not operated. Alternatively, the switching or operation of the load change switch can be held up until the locking condition is fulfilled, i.e. the selector remains in a defined position or no longer moves. Furthermore, it is possible to abort this operation or to generate an error signal or both.

[0039] The control device 2 comprises a control unit 10 with a memory 5 and at least one power part 11 with a memory 5. In the memory 5, for example, the correspondence between the switching positions of a first switching means 17 (load switching switch) and a second switching means 18 (selector) can be stored. Similarly, in the memory 5, values ​​relating to the positions of the individual drive shafts 16 can be stored.

[0040] FIG. 2 shows another embodiment of the aforementioned drive system 3 for at least three switching means 17, 18 and 19 of the actuating means 20. In this embodiment, three switching means 17, 18 and 19 are provided. The first switching means 17 is a load changeover switch. The second switching means 18 is a selector. The third switching means 19 is a preselector. Each of these three switching means 17, 18, 19 is actuated by a dedicated motor 12, 13 and 14, respectively. Each of these three switching means 17, 18, 19 is assigned a respective feedback system 6, 7, 9. In this case too, different locking conditions can be checked in the control unit 10. For this purpose, the parameters of the feedback systems 6, 7, 8 are queried. Thus, for example, in the embodiment described herein, the preselector (third switching means 19) can be operated only when the selector (second switching means 18) and the load changeover switch (first switching means 17) are in a predetermined position and are not being operated. For example, the preselector (third switching means 19) can be operated only when the load changeover switch (first switching means 17) and the selector (second switching means 18) are almost marginally connected to the main winding (not shown) of the transformer and the winding to be inverted (preselected tap or control winding) is not being switched by the preselector (third switching means 19).

[0041] FIG. 3 illustrates another possible embodiment of the drive system 3 according to the invention in the case of three operating means 20, as shown in FIG. 3. The three operating means 20 can in particular be three transformers whose taps (not shown) are switched in unison by the three switching means 17, 18 and 19 by means of a common control unit 10. The function of the three switching means 17, 18 and 19 assigned to each of the transformers (operating means 20) is the same as the three switching means 17, 18 and 19 shown in FIG. 2. After receiving a switching signal, it is first checked which of the switching means 17, 18 and 19 must be operated. For that purpose, three switching means groups 30, 40 and 50 can be formed. A first switching means group 30 is thus composed of the first switching means 17, i.e. the load changeover switch, in each transformer (operating means 20). The second switching means group 40 is respectively a second switching means 18, i.e. a selector. The third switching means group is respectively a third switching means 19, i.e. a preselector 50. Before operation, it is checked whether a given switching means group 30, 40 and 50 fulfills a locking condition. Here, it is checked, for example, in what position each of the individual selectors (second switching means 18) of the three operating means 20 is in and whether one of them is in motion. In each operating means 20, the locking condition check is carried out on the basis of the parameters of each feedback system 6, 7 and 8 assigned to each switching means 17, 18 and 19. The power units 11 assigned to each drive system 3 of each operating means 20 are connected by a bus 21 to a single central control unit 10. By means of this central control unit 10, the operation of each switching means 17, 18 and 19 in each of the three operating means 20 is coordinated and controlled. As already shown in FIG. 2, the power section 11 acts on a motor 12, 13 or 14 which is assigned to each switching means 17, 18 and 19.

[0042] FIG. 4 shows another possible embodiment of the drive system 3 described here. In this case, the first switching means 17 is a load changeover switch and the three other second switching means 18 are three selectors implemented in single-phase. This first switching means 17 is operated by a first motor 12 assigned to it. This first switching means 17 is assigned a first feedback system 6. These three second switching means 18 are each operated by a dedicated second motor 13 and each have a second feedback system 7. Alternatively, all three selectors can be operated by one common second motor 7. In this case too, different locking conditions can be checked by querying the parameters of the first and second feedback systems 6 and 7 in the control unit 10. Here, the load changeover switch (first switching means 17) is implemented in three-phase. These selectors (second switching means 18) can be grouped together in one switching means group 40.

[0043] FIG. 5 illustrates the flow of the method according to the invention. In this case, the control device 2 advantageously receives a changeover signal for operating the first changeover means 17 and the second changeover means 18, i.e. a load changeover switch and an on-load tap changer with a selector. This changeover signal can be generated by a manual input, for example during maintenance work. Alternatively, the changeover signal can be provided, for example, by an operating means 20, i.e. a device for controlling the voltage in the case of a voltage drop or rise at the transformer. After receiving the changeover signal, it is first determined whether the changeover means 17 or 18 or both changeover means 17 and / or 18 must be operated. After selecting the changeover means 17 and 18 to be operated, the control unit 10 queries at least one parameter. In the example of FIG. 1, the query parameter is, for example, the position of the selector, i.e. the second changeover means 18, determined by a second feedback system 7 associated with the second motor 13. In the control unit 10, at least one locking condition is stored in the memory 5, which this at least one parameter can either fulfill or not fulfill. If the locking condition is fulfilled when checking, the switching of the first switching means 17, so to speak, is operated. If the locking condition is not fulfilled when checking, the operation of the first switching means 17 is not performed, i.e. no switching takes place. The control unit 10 can then wait until the parameters fulfill the locking condition and then carry out the switching. Alternatively, the switching can be pre-aborted before it is started. Likewise, an error signal can be issued. Starting from the example of FIG. 1, before operating the load switching switch (first switching means 17), it is first checked in what state (position) the selector (second switching means 18) is in and whether it is indeed about to move positively, so to speak, to be operated positively, or both. In this example, the locking condition does not allow the operation of the load changeover switch (second switching means 18) if the selector (second switching means 18) is about to be operated or is, for example, in an unfavourable / not permitted state (position). The parameters required for checking the locking condition are output by the second feedback system 7 of the second motor 13 of the selector (second switching means 18).In this case, the feedback system 7 is configured as, for example, a multi-turn rotary encoder directly or indirectly connected to a drive shaft 16 disposed between the second motor 13 and a selector (second switching means 18). This multi-turn rotary encoder determines parameters such as the position of the selector (second switching means 18) based on the position of the drive shaft 16.

[0044] Depending on the embodiment of the drive system 3, different parameters can be combined with different locking conditions. Thus, as shown in the embodiment of Fig. 2, the position (attitude) of the selector and preselector (second and third switching means 18 and 19) is checked before operating the load changeover switch (first switching means 17). Alternatively, the locking conditions, i.e. the parameters of the load changeover switch (first switching means 17) and the preselector (third switching means 19) are checked before operating the selector (second switching means 18). Again, the parameters are interrogated from the respective feedback systems 6 and 8 configured as multi-turn rotary encoders.

[0045] The parameters to be queried can be determined arbitrarily or can be of any form: they can come from the feedback systems 6, 7 and 8 at the respective motors 12, 13 and 14 of the respective switching means 17, 18 and 19, from a simple safety switch of the operating means 20 or even from a customer-specific release button.

[0046] These locking conditions define what conditions must be met so that switching is not "locked", i.e. prohibited. These conditions are associated with parameters formed or defined by the attitude or position, momentary status and movement state of the switching means 17, 18 and 19.

[0047] These locking conditions may make use of one or more parameters of one or any number of feedback systems 6, 7 and 8.

[0048] These parameters may be, for example, the motion state of the switching means, the position or orientation of the switching means, the position or orientation range of the switching means, the temperature of the operating means, customer-specific switching signals, safety devices and the like.

[0049] These switching means can be load changeover switches, selectors, transfer switches and duplex transfer switches, which can be configured as single-phase or multi-phase. The present application relates to the invention described in the claims, but may also include the following configurations as other aspects. 1. A method for performing switching of one first switching means (17) or at least one second switching means (18, 19) of an operating means (20), comprising: A control unit (10) receiving a switching signal; selecting, using the control unit (10), either the first switching means (17) or the at least one second switching means (18, 19) for switching based on the switching signal; querying, by said control unit (10), at least one parameter of said first switching means (17) or said at least one second switching means (18, 19); - checking a locking condition based on the at least one queried parameter for said first switching means (17) or checking a locking condition for said at least one second switching means (18, 19); performing a switching operation using the selected first switching means (17) or the at least one second switching means (18, 19) if the corresponding locking condition is met. 2. In the method according to claim 1, The method, wherein at least one parameter of said first switching means (17) is determined by means of a first feedback system (6) and at least one parameter of said at least one second switching means (18, 19) is determined by means of a feedback system (7, 8) assigned to said at least one second switching means (18, 19). 3. In the method according to the above item 2, The method, wherein the parameter calculated by said feedback system (6, 7, 8) for switching one of the switching means (17, 18, 19) is the attitude or position of each switching means (17, 18, 19). 4. In the method according to the above item 2, The method, wherein the parameter calculated by said feedback system (6, 7, 8) for switching one of the switching means (17, 18, 19) is the motion state of each switching means (17, 18, 19). 5. In the method according to any one of 1 to 4 above, The queried parameters of the first switching means (17) and / or the at least one second switching means (18, 19) are evaluated and integrated in a control unit (10), whereby the first switching means (17) and / or the first switching means (17) and the at least one second switching means (18, 19) are controlled as required. 6. In any one of the methods according to 1 to 5 above, In order to perform the switching, a power unit (11) assigned to the operating means (20) is controlled by the control unit (10) to operate the selected first switching means (17) or at least one selected second switching means (18, 19), and this power unit (11) operates a first motor (12) connected to the first switching means (17) via a drive shaft (16) and a second motor (13) connected to at least one second switching means (18, 19), respectively, via their respective drive shafts (16), depending on the performance of the switching. 7. In the method according to claim 6, The method wherein each feedback system (6, 7, 9) is assigned, directly or indirectly, to each drive shaft (16) of a switching means (17, 18, 19). 8. In any one of the methods according to 1 to 7 above, A power unit (11) is assigned to each of the plurality of operating means (20), and these power units (11) are controlled by a control unit (10), and first switching means (17) of the plurality of operating means (20) are grouped together into a first switching means group, and at least one second switching means (18, 19) is grouped together into at least one second switching means group (40, 50). 9. A drive system (3) for at least two switching means (17, 18, 19) of an operating means (20), a first switching means (17) connected to the first motor (12) via a drive shaft (16); at least one second switching means (18, 19) connected to at least one second motor (13, 14) via a drive shaft (16); feedback systems (6, 7, 8), one feedback system each assigned to the first motor (12) and to at least one second motor (13, 14), for calculating at least one parameter of said switching means (17, 18, 19); and a control unit (10) in communication with the power unit (11) for operating a first switching means (17) by means of a first motor (12) or for operating the at least one second switching means (18, 19) by means of the at least one second motor (18, 19) when a locking condition corresponding to the at least one calculated parameter and evaluated in the control unit (10) is fulfilled. 10. In the drive system according to claim 9, The at least one second switching means (18, 19) includes a second switching means (18) connected to a second motor (13) and a third switching means (19) connected to a third motor (13). 11. In the drive system (3) according to claim 9 or 10, A plurality of operating means (20) are assigned to the drive system (3), a power unit (11) is assigned to each operating means (20), and these power units (11) are communicatively connected to a control unit (10), the first switching means (17) of the plurality of operating means (20) are grouped together into a first switching means group (30), and the at least two second switching means (18, 19) are grouped together into at least one second switching means group (40, 50). 12. In the drive system (3) according to claim 10, The at least one second switching means (18, 19) is composed of one second switching means (18) and one third switching means (19), the second switching means (18) being grouped together in a second switching means group (40), and the third switching means (19) being grouped together in a third switching means group (50). 13. In the drive system (3) according to claim 9, A drive system in which each of the second switching means (18) is connected to a second motor (13) via a respective drive shaft (16), and these second switching means (18) are grouped together into a second switching means group (40). 14. In the drive system (3) according to any one of 9 to 13 above, The drive system, wherein the control unit (10) and the power unit (11) each have a memory (5). [Explanation of symbols]

[0050] 2. Control device 3. Drive system 5. Memory 6. Primary Feedback System 7. Secondary Feedback System 8. The Third Feedback System 10. Control Unit 11 Power section 12 First Motor 13 Second Motor 14 Third Motor 16 Drive shaft 17 First switching means 18 Second switching means 19 Third switching means 20 Operating means 21 Bus 30 First switching means group 40 Second switching means group 50 Third switching means group

Claims

1. A method for performing switching of one first switching means (17) or at least one second switching means (18, 19) of an operating means (20), comprising the steps of: A control unit (10) receiving a switching signal; selecting, using the control unit (10), for switching, based on the switching signal, either the first switching means (17) or the at least one second switching means (18, 19); - querying, by said control unit (10), at least one parameter of said first switching means (17) or of said at least one second switching means (18, 19); - checking a locking condition based on the at least one queried parameter for said first switching means (17) or checking a locking condition for said at least one second switching means (18, 19); performing a switching operation using the selected first switching means (17) or at least one second switching means (18, 19) if the corresponding locking condition is met, CHARACTERIZED IN THAT said first switching means (17) is configured as a load changeover switch and said second switching means (18, 19) is configured as a selector.

2. 10. The method of claim 1 , The method, wherein at least one parameter of said first switching means (17) is determined by means of a first feedback system (6) and at least one parameter of said at least one second switching means (18, 19) is determined by means of a feedback system (7, 8) assigned to said at least one second switching means (18, 19).

3. 3. The method of claim 2, The method, wherein the parameter calculated by said feedback system (6, 7, 8) for switching one of the switching means (17, 18, 19) is the attitude or position of each switching means (17, 18, 19).

4. 3. The method of claim 2, The method, wherein the parameter calculated by said feedback system (6, 7, 8) for switching one of the switching means (17, 18, 19) is the motion state of each switching means (17, 18, 19).

5. The method according to any one of claims 1 to 4, The method according to the present invention, wherein the queried parameters of the first switching means (17) and / or the at least one second switching means (18, 19) are evaluated and integrated in a control unit (10), whereby the first switching means (17) and / or the first switching means (17) and the at least one second switching means (18, 19) are controlled as required.

6. The method according to any one of claims 1 to 5, In order to perform the switching, a power unit (11) assigned to the operating means (20) is controlled by the control unit (10) to operate the selected first switching means (17) or at least one selected second switching means (18, 19), and this power unit (11) operates a first motor (12) connected to the first switching means (17) via a drive shaft (16) and a second motor (13) connected to at least one second switching means (18, 19), respectively, via their respective drive shafts (16), depending on the performance of the switching.

7. 7. The method of claim 6, The method wherein each feedback system (6, 7, 9) is assigned, directly or indirectly, to each drive shaft (16) of a switching means (17, 18, 19).

8. The method according to any one of claims 1 to 7, A power unit (11) is assigned to each of the plurality of operating means (20), and these power units (11) are controlled by a control unit (10), and first switching means (17) of the plurality of operating means (20) are grouped together into a first switching means group, and at least one second switching means (18, 19) is grouped together into at least one second switching means group (40, 50).

9. A drive system (3) for at least two switching means (17, 18, 19) of an operating means (20), a first switching means (17) connected to the first motor (12) via a drive shaft (16); at least one second switching means (18, 19) connected to at least one second motor (13, 14) via a drive shaft (16); feedback systems (6, 7, 8), one feedback system each assigned to the first motor (12) and to at least one second motor (13, 14), for calculating at least one parameter of said switching means (17, 18, 19); a control unit (10) in communication with a power unit (11) for operating a first switching means (17) by means of a first motor (12) or for operating said at least one second switching means (18, 19) by means of said at least one second motor (18, 19) when a locking condition corresponding to said at least one calculated parameter and evaluated in the control unit (10) is fulfilled, A drive system, characterized in that the first switching means (17) is configured as a load changeover switch, and the second switching means (18, 19) is configured as a selector.

10. 10. The drive system of claim 9, The at least one second switching means (18, 19) comprises a second switching means (18) connected to a second motor (13) and a third switching means (19) connected to a third motor (13).

11. A drive system (3) according to claim 9 or 10, A plurality of operating means (20) are assigned to the drive system (3), each operating means (20) is assigned a power unit (11), and these power units (11) are communicatively connected to a control unit (10), and the first switching means (17) of the plurality of operating means (20) are grouped together into a first switching means group (30), and the at least two second switching means (18, 19) are grouped together into at least one second switching means group (40, 50).

12. A drive system (3) according to claim 10, The at least one second switching means (18, 19) is composed of one second switching means (18) and one third switching means (19), the second switching means (18) being grouped together in a second switching means group (40), and the third switching means (19) being grouped together in a third switching means group (50).

13. A drive system (3) according to claim 9, A drive system in which each of the second switching means (18) is connected to a second motor (13) via a respective drive shaft (16), and these second switching means (18) are grouped into a second switching means group (40).

14. A drive system (3) according to any one of claims 9 to 13, The drive system, wherein the control unit (10) and the power unit (11) each have a memory (5).

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