Modular power supply arrangement

• US 8,829,711 B2
• Filed: 05/17/2010
• Issued: 09/09/2014
• Est. Priority Date: 01/14/2010
• Status: Expired due to Fees

• Current Assignee: AEG Power Solutions BV (3W Power Holdings Limited)
• Original Assignee: AEG Power Solutions BV (3W Power Holdings Limited)
• Inventors: Wallmeier, Peter
• Primary Examiner(s): Amrany, Adi
• Application Number:
  US12/781,088
• Publication Number:
  US 20110169332A1
• Time in Patent Office: 1,576 Days
• Field of Search: 307/75, 307/17, 307/43, 307/52, 307/72, 307/73, 307/83
• US Class Current: 307/52
• CPC Class Codes: H02J 3/38 Arrangements for parallely feeding a single network by two or more generators, converters or transformers
• CPC Class Codes: H02M 5/22 using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

A power supply arrangement for producing polysilicon with a central control unit and a basic supply unit, which are regulated and controlled by control means. The basic supply unit supplies the supply module with electric energy, an output for connecting to loads which are supplied with electric energy from the mains via basic supply unit, and controllable switches, which are connected to the input and to the output and which are configured for adjusting the energy to be supplied to the loads. The switches are controllable. The control unit is supplied with electric energy. The power supply includes a communication bus. The control module and the basic supply module are connectable to the control module and the basic supply module to the communication bus. The control module and the basic supply module provide connections to the control module and the basic supply module to the communication bus.

Claims

1. A modular power supply arrangement in a reactor producing polysilicon, the power supply comprising:

a power mains;

a central control module haying an input connected to the power mains supplying the central control module with electrical energy, the central control module including, at least one controller;

at least one basic supply module haying at least one input supplying the basic supply module with electric energy; and

the at least one basic supply module having at least one output connecting to a group of loads to receive electric energy from the power mains via the basic supply module;

the basic supply module being controlled and/or regulated by the controller of the central control module;

the basic supply module further including controllable switches, connected at least indirectly to the input and to the output of the basic supply module, the controllable switches increase or decrease the energy supplied by the power mains to the loads via the output, wherein each of the switches is switchable by the central control module between two states to form an open circuit and a closed circuit;

a communication bus connected to the central control module and the basic supply module via an interface; and

a voltage supply module supplying higher voltages than an output voltage of the power mains, the voltage supply module comprises at least one input connected to the power mains supplying electric energy or a transformer for supplying electric energy and outputs connected to one corresponding load from the group of loads;

an interface connecting the voltage supply module to the communication bus;

the voltage supply module further includes a plurality of converters for generating from the power mains at the input, of the voltage supply module a voltage of higher frequency;

the voltage of higher frequency is upconverted by a plurality of transformers to produce a higher voltage than that of the power mains;

wherein the plural transformers includes a first transformer, a second transformer, a third transformer, and a fourth transformer;

each of the transformers having a plurality of outputs;

the first and second transformers together represent a first pair of transformers, while the third and fourth transformers together represent a second pair of transformers;

outputs of the plural transformers provide the outputs of the voltage supply module;

linked voltages across the outputs of the voltage supply module are equal to 0 V at least during a time when loads connected to the outputs of the voltage supply module are supplied with electric power.

2. The modular power supply arrangement according to claim 1, wherein the outputs of the voltage supply module include two outer terminals and three inner terminals, the two outer terminals of the voltage supply module are each connected with a respective terminal of the output of the basic supply module.

3. The modular power supply arrangement according to claim 1, further comprising a transformer with plural secondary-side taps.

4. The modular power supply arrangement according to claim 3, wherein the taps of the transformer are each associated with a corresponding input of the basic supply module and a group of the controllable switches is associated with each input of the basic supply module adjusting the electric energy to be received via the input of the basic supply module.

5. The modular power supply arrangement according to claim 4, wherein groups of the controllable switches are connected to the inputs and to the output of the basic supply module without interconnection of additional switches.

6. The modular power supply arrangement according to claim 5, wherein a node is arranged between the groups of the controllable switches and the output of the basic supply module, wherein the node is connectable via an additional controllable switch to a reference potential.

7. The modular power supply arrangement according to claim 5, wherein the additional switches are mechanical switches.

8. The modular power supply arrangement according to claim 7, wherein the mechanical switches are contactors.

9. The modular power supply arrangement according to claim 3, wherein the group of loads is suppliable with electric energy drawn from the power mains via the transformer.

10. The modular power supply arrangement according to claim 1, wherein the modular power supply arrangement comprises several identical basic supply modules.

11. The modular power supply arrangement according to claim 1, wherein a corresponding converter is associated with each output of the voltage supply module.

12. The modular power supply arrangement according to claim 1, wherein the modular power supply arrangement comprises a frequency supply module supplying a voltage with a frequency higher than an output voltage of the power mains and higher than an output voltage of the basic supply module, the frequency supply module comprises at least one input connected to the power mains supplying electric energy and outputs connected to a corresponding load from the groups of loads, which load is supplied with electric energy received from the power mains, and an interface connecting the modular power supply arrangement with the communication bus.

13. The modular power supply arrangement according to claim 12, wherein the frequency supply module comprises one or more frequency converters increasing the frequency of a voltage of the power mains applied at the input.

14. The modular power supply arrangement according to claim 13, wherein a corresponding output of one of the frequency converters is associated with each output of the frequency supply module.

15. The modular power supply arrangement according to claim 12, wherein the linked voltage across a pair of outputs of the frequency supply module is equal to about 0 V at least when the loads connected to the outputs of the frequency supply module are supplied with electric power.

16. The modular power supply arrangement according to claim 12, wherein two corresponding terminals are associated with each of the outputs of the frequency supply module, with each pair of outputs having two outer terminals and one inner terminal, wherein the outer terminals are associated with a corresponding one of the two outputs of the pair of outputs and the inner terminal is associated with two outputs of the pair of outputs.

17. The modular power supply arrangement according to claim 12, wherein a three-phase AC voltage of approximately 200 V to approximately 600 V is supplied to the input of the frequency supply module.

18. The modular power supply arrangement according, to claim 17, wherein the three-phase AC voltage is about 400 V.

19. The modular power supply arrangement according to claim 17, wherein the frequency supply module is a transformer.

20. The modular power supply arrangement according to claim 12, wherein the modular power supply arrangement comprises several identical frequency supply modules.

21. The modular power supply arrangement according to claim 20, wherein the number of the frequency supply modules corresponds to a number of the basic supply modules.

22. The modular power supply arrangement according to claim 1, further comprising control cabinets, and wherein the central control module and each basic supply module are arranged in a corresponding control cabinet.

23. The modular power supply arrangement according claim 22, wherein each voltage supply module together with a basic supply module is arranged in a control cabinet.

24. The modular power supply arrangement according to claim 23, wherein each control cabinet comprises a connection to the power mains.

25. The modular power supply arrangement according to claim 22, wherein each control cabinet comprises a connection to the power mains.

26. The modular power supply arrangement according to claim 22, wherein each control cabinet has a display unit.

27. The modular power supply arrangement according to claim 26, wherein the display unit is a display screen.

28. The modular power supply arrangement according to claim 22, wherein the central control module, each basic supply module and each frequency supply module are arranged in a corresponding control cabinet.

29. The modular power supply arrangement according to claim 1, wherein each module has a connection to an auxiliary power supply.

30. The modular power supply arrangement according to claim 1, wherein the controllable switches are thyristors.

31. The modular power supply arrangement according to claim 1, wherein no voltage is present at the output of the basic supply module that is generated by the voltage supply module during operation of the voltage supply module.

32. The modular power supply arrangement according to claim 1, wherein in the first pair of transformers the first transformer has a secondary coil that is oppositely wound relative to a secondary coil of the second transformer.