CN104795883A - Power module direct-current bus energy-extracting device - Google Patents
Power module direct-current bus energy-extracting device Download PDFInfo
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Abstract
The invention provides a power module direct-current bus energy-extracting device which comprises a power unit direct-current bus module, a rectifying module, a double power switching module, a matching resistance module, a single-end flyback conversion power module and a power output protection and signal feedback module, wherein the power unit direct-current bus module is used for providing the corresponding direct-current bus and direct-current capacitance of the power unit and outputting the corresponding direct-current power to the double-power switching module, and the output end of the power unit direct-current bus module is connected with the input end of the double-power switching module. The power module direct-current bus energy-extracting device conducts internal direct-current bust energy extraction through the direct-current bus voltage output module without the need of an isolation transformer, can effectively separate a high-voltage transformer and a low-voltage transformer, ensures the normal operation of the field devices, and facilitates the commissioning and operation of the device inside a factory and on the site due to the double power supply modes of alternating current and direct current.
Description
Technical field
The present invention relates to synchronous compensator plant technical field, specifically, the present invention relates to a kind of power model DC bus energy taking device.
Background technology
Current high-voltage chain type static synchronous compensator plant application is increasingly extensive, but power model controls power supply to be got and can mode relatively lag behind.Tradition energy method of getting is that separate external power source is powered, and every platform power model is equipped with an isolating transformer, high voltage source and low-tension supply is isolated for realization.
But traditional power model controls power supply energy method of getting exists that module volume is large, dismounting between module and assembling is wasted time and energy, transport the problems such as inconvenience, is unfavorable for applying of high-voltage chain type static synchronous compensator plant.
Therefore, be necessary to propose effective technical scheme, solve that module volume existing in prior art is large, dismounting between module is with assembling is wasted time and energy, transport the problems such as inconvenience.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency, carries out inner DC bus especially and gets energy, without the need to isolating transformer, effectively can isolate high-tension transformer and low-tension transformer by DC bus-bar voltage output module.
The embodiment of the present invention proposes a kind of power model DC bus energy taking device; comprise power cell DC bus module, rectification module, duplicate supply handover module, build-out resistor module, single-ended reverse exciting converting power source module and power supply output protection and signal feedback module
Described power cell DC bus module, for providing DC bus and the DC capacitor of corresponding power cell, and exporting corresponding DC power supply to described duplicate supply handover module, the output of described power cell DC bus module connects the input of described duplicate supply handover module;
Described rectification module, for providing the external power source of inputted 220 volts of alternating voltages, and export corresponding DC power supply to described duplicate supply handover module, the output of described rectification module connects the input of described duplicate supply handover module;
Described duplicate supply handover module, for giving described single-ended reverse exciting converting power source module by selected power delivery, and give described coupling power module by selected power delivery, one end of the output of described duplicate supply handover module connects the input of described single-ended reverse exciting change power module, the other end of the output of described duplicate supply handover module connects the input of described build-out resistor module, wherein, described single-ended reverse exciting converting power source module is connected with described build-out resistor wired in parallel;
Described build-out resistor module, for balancing the power loss of described single-ended reverse exciting converting power source module;
Described single-ended reverse exciting converting power source module, for carrying out corresponding signals collecting, and be that the power cell circuit board that described energy taking device outside connects is powered, one end of the output of described single-ended reverse exciting converting power source module connects the input of described power supply output protection and signal feedback module, the other end of the output of described single-ended reverse exciting converting power source module connects the input of described power cell circuit board, wherein, described power supply output protection and signal feedback module and described power cell circuit board are connected in series;
Described power supply output protection and signal feedback module, process accordingly for corresponding fault-signal being transferred to described power cell circuit board, wherein, the output of described power supply output protection and signal feedback module connects the input of described power cell circuit board;
Described power cell circuit board, it is connected with described energy taking device outside, and described power cell circuit board is as the load of described energy taking device, and described power cell circuit board is the core control panel of corresponding power model.
Preferably, the transformer of described single-ended reverse exciting converting power source module is coupling inductance, for energy storage, transformation and transferring energy.
Preferably, the influencing factor of described single-ended reverse exciting converting power source module comprises the influencing factor of the main switch resistance to pressure of input voltage influencing factor, output voltage influencing factor, the influencing factor of power output of each circuit, the influencing factor of switching frequency and corresponding circuit.
Preferably, described single-ended reverse exciting converting power source module and described power supply output protection and signal feedback module are encapsulated, to become corresponding power module.
Preferably, described energy taking device also comprises module controls plate, described module controls plate for control described energy taking device modules between normal operating conditions.
Preferably, described module controls plate comprises the first module controls Slab element, for controlling the operating state of described power module circuitry, to make the working power state of its output for pre-setting, the output of described power module is connected with the input of described first module controls plate, and the output of described first module controls plate is connected with the input of described duplicate supply handover module.
Preferably; described module controls plate comprises the second module controls Slab element; for monitoring and processing the operating state of described power supply output protection and signal feedback module, the input of described second module controls Slab element is connected with the output of described power supply output protection and signal feedback module.
Preferably, described build-out resistor module comprises parameter monitoring unit, parameter acquisition unit, the monitoring means of power supply active loss of corresponding circuit and the collecting unit of the power supply active loss of corresponding circuit and computing unit.
Preferably, described build-out resistor module comprises the first parameter monitoring unit, the monitoring means of the first parameter acquisition unit, accordingly the power supply active loss of circuit and the collecting unit of power supply active loss of corresponding circuit and the computing unit of the first parameter, and described first parameter refers to and the resistance that described build-out resistor module is mated.
Preferably, it is characterized in that, described build-out resistor module comprises the second parameter monitoring unit, the monitoring means of the second parameter acquisition unit, accordingly the power supply active loss of circuit and the collecting unit of power supply active loss of corresponding circuit and the computing unit of the second parameter, and described second parameter refers to the power that described build-out resistor module is mated.
The such scheme that the embodiment of the present invention proposes, carries out inner DC bus by DC bus-bar voltage output module and gets energy, without the need to isolating transformer, effectively can isolate high-tension transformer and low-tension transformer; Ensure the personal safety of site operation personnel and the normal operation of equipment, meanwhile, AC and DC dual power supply pattern, be convenient in instrument factory and field adjustable, operation.In addition, the such scheme that the present invention proposes, very little to the change of existing Circuits System, can not the compatibility of influential system, and realize simple, efficient.
The aspect that the present invention adds and advantage will part provide in the following description, and these will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the structural representation of the power model DC bus energy taking device of the embodiment of the present invention one.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Embodiment one
The present embodiment one provides according to power model DC bus energy taking device of the present invention.As shown in Figure 1; this power model DC bus energy taking device, comprises power cell DC bus module 101, rectification module 102, duplicate supply handover module 103, build-out resistor module 104, single-ended reverse exciting converting power source module 105 and power supply output protection and signal feedback module 106.
Power cell DC bus module 101, for providing DC bus and the DC capacitor of corresponding power cell, and exporting corresponding DC power supply to duplicate supply handover module 103, the output of power cell DC bus module 101 connects the input of duplicate supply handover module 103;
Rectification module 102, for providing the external power source of inputted 220 volts of alternating voltages, and exports corresponding DC power supply to duplicate supply handover module 103, and the output of rectification module 102 connects the input of duplicate supply handover module 103;
Duplicate supply handover module 103, for by selected power delivery to single-ended reverse exciting converting power source module 105, and give coupling power module 104 by selected power delivery, one end of the output of duplicate supply handover module 103 connects the input of single-ended reverse exciting change power module 105, the input of the other end matching connection resistive module 104 of the output of duplicate supply handover module 103, wherein, single-ended reverse exciting converting power source module 105 and build-out resistor module 104 are connected in parallel;
Build-out resistor module 104, for balancing the power loss of single-ended reverse exciting converting power source module 105;
Single-ended reverse exciting converting power source module 105, for carrying out corresponding signals collecting, and be that the power cell circuit board that energy taking device outside connects is powered, one end of the output of single-ended reverse exciting converting power source module 105 connects the input of power supply output protection and signal feedback module 106, the other end of the output of single-ended reverse exciting converting power source module 105 connects the input of power cell circuit board, wherein, power supply output protection and signal feedback module 106 are connected in series with power cell circuit board;
Power supply output protection and signal feedback module 106, process accordingly for corresponding fault-signal is transferred to power cell circuit board, and wherein, the output of power supply output protection and signal feedback module 106 connects the input of power cell circuit board;
Power cell circuit board, it is connected with energy taking device outside, and described power cell circuit board is as the load of described energy taking device, and described power cell circuit board is the core control panel of corresponding power model.
The power model DC bus energy taking device that the embodiment of the present invention one provides, carries out inner DC bus by DC bus-bar voltage output module and gets energy, without the need to isolating transformer, effectively can isolate high-tension transformer and low-tension transformer; Ensure the personal safety of site operation personnel and the normal operation of equipment; Meanwhile, AC and DC dual power supply pattern, be convenient in instrument factory and field adjustable, operation.During low pressure debugging, by rectification circuit, connect external power source, be convenient to equipment machine debugging; During normal operation, cut off externally fed power supply.In addition, the such scheme that the present invention proposes, very little to the change of existing Circuits System, can not the compatibility of influential system, and realize simple, efficient.
Embodiment two
The present embodiment two provides according to power model DC bus energy taking device of the present invention.This power model DC bus energy taking device, comprises power cell DC bus module 101, rectification module 102, duplicate supply handover module 103, build-out resistor module 104, single-ended reverse exciting converting power source module 105 and power supply output protection and signal feedback module 106.
Power cell DC bus module 101, for providing DC bus and the DC capacitor of corresponding power cell, and exporting corresponding DC power supply to duplicate supply handover module 103, the output of power cell DC bus module 101 connects the input of duplicate supply handover module 103;
Rectification module 102, for providing the external power source of inputted 220 volts of alternating voltages, and exports corresponding DC power supply to duplicate supply handover module 103, and the output of rectification module 102 connects the input of duplicate supply handover module 103;
Duplicate supply handover module 103, for by selected power delivery to single-ended reverse exciting converting power source module 105, and give coupling power module 104 by selected power delivery, one end of the output of duplicate supply handover module 103 connects the input of single-ended reverse exciting change power module 105, the input of the other end matching connection resistive module 104 of the output of duplicate supply handover module 103, wherein, single-ended reverse exciting converting power source module 105 and build-out resistor module 104 are connected in parallel;
Build-out resistor module 104, for balancing the power loss of single-ended reverse exciting converting power source module 105;
Single-ended reverse exciting converting power source module 105, for carrying out corresponding signals collecting, and be that the power cell circuit board that energy taking device outside connects is powered, one end of the output of single-ended reverse exciting converting power source module 105 connects the input of power supply output protection and signal feedback module 106, the other end of the output of single-ended reverse exciting converting power source module 105 connects the input of power cell circuit board, wherein, power supply output protection and signal feedback module 106 are connected in series with power cell circuit board;
Power supply output protection and signal feedback module 106, process accordingly for corresponding fault-signal is transferred to power cell circuit board, and wherein, the output of power supply output protection and signal feedback module 106 connects the input of power cell circuit board;
Power cell circuit board, it is connected with energy taking device outside, and described power cell circuit board is as the load of described energy taking device, and described power cell circuit board is the core control panel of corresponding power model.
Further, the transformer of single-ended reverse exciting converting power source module is coupling inductance, for energy storage, transformation and transferring energy.
Further, the influencing factor of single-ended reverse exciting converting power source module comprises the influencing factor of the main switch resistance to pressure of input voltage influencing factor, output voltage influencing factor, the influencing factor of power output of each circuit, the influencing factor of switching frequency and corresponding circuit.
Further, single-ended reverse exciting converting power source module and power supply output protection and signal feedback module are encapsulated, to become corresponding power module.
Further, energy taking device also comprises module controls plate, module controls plate for control energy taking device modules between normal operating conditions.
Further, module controls plate comprises the first module controls Slab element, for controlling the operating state of power module circuitry, to make the working power state of its output for pre-setting, the output of power module is connected with the input of the first module controls plate, and the output of the first module controls plate is connected with the input of duplicate supply handover module.
Further; module controls plate comprises the second module controls Slab element; for monitoring and processing the operating state of power supply output protection and signal feedback module, the input of the second module controls Slab element is connected with the output of power supply output protection and signal feedback module.
Further, build-out resistor module comprises parameter monitoring unit, parameter acquisition unit, the monitoring means of power supply active loss of corresponding circuit and the collecting unit of the power supply active loss of corresponding circuit and computing unit.
Further, build-out resistor module comprises the first parameter monitoring unit, the monitoring means of the first parameter acquisition unit, accordingly the power supply active loss of circuit and the collecting unit of power supply active loss of corresponding circuit and the computing unit of the first parameter, and the first parameter refers to and the resistance that build-out resistor module is mated.
Further, build-out resistor module comprises the second parameter monitoring unit, the monitoring means of the second parameter acquisition unit, accordingly the power supply active loss of circuit and the collecting unit of power supply active loss of corresponding circuit and the computing unit of the second parameter, and the second parameter refers to the power that build-out resistor module is mated.
The power model DC bus energy taking device that the embodiment of the present invention two provides, carries out inner DC bus by DC bus-bar voltage output module and gets energy, without the need to isolating transformer, effectively can isolate high-tension transformer and low-tension transformer; Ensure the personal safety of site operation personnel and the normal operation of equipment; Meanwhile, AC and DC dual power supply pattern, be convenient in instrument factory and field adjustable, operation.During low pressure debugging, by rectification circuit, connect external power source, be convenient to equipment machine debugging; During normal operation, cut off externally fed power supply.In addition, the such scheme that the present invention proposes, very little to the change of existing Circuits System, can not the compatibility of influential system, and realize simple, efficient.
Although describe in detail about example embodiment and advantage thereof, being to be understood that when not departing from the protection range of spirit of the present invention and claims restriction, various change, substitutions and modifications can being carried out to these embodiments.For other examples, those of ordinary skill in the art should easy understand maintenance scope in while, the order of processing step can change.
In addition, range of application of the present invention is not limited to the technique of the specific embodiment described in specification, mechanism, manufacture, material composition, means, method and step.From disclosure of the present invention, to easily understand as those of ordinary skill in the art, for the technique existed at present or be about to develop, mechanism, manufacture, material composition, means, method or step later, wherein their perform the identical function of the corresponding embodiment cardinal principle that describes with the present invention or obtain the identical result of cardinal principle, can apply according to the present invention to them.
Therefore, claims of the present invention are intended to these technique, mechanism, manufacture, material composition, means, method or step to be included in its protection range.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a power model DC bus energy taking device, is characterized in that, comprises power cell DC bus module, rectification module, duplicate supply handover module, build-out resistor module, single-ended reverse exciting converting power source module and power supply output protection and signal feedback module,
Described power cell DC bus module, for providing DC bus and the DC capacitor of corresponding power cell, and exporting corresponding DC power supply to described duplicate supply handover module, the output of described power cell DC bus module connects the input of described duplicate supply handover module;
Described rectification module, for providing the external power source of inputted 220 volts of alternating voltages, and export corresponding DC power supply to described duplicate supply handover module, the output of described rectification module connects the input of described duplicate supply handover module;
Described duplicate supply handover module, for giving described single-ended reverse exciting converting power source module by selected power delivery, and give described coupling power module by selected power delivery, one end of the output of described duplicate supply handover module connects the input of described single-ended reverse exciting change power module, the other end of the output of described duplicate supply handover module connects the input of described build-out resistor module, wherein, described single-ended reverse exciting converting power source module is connected with described build-out resistor wired in parallel;
Described build-out resistor module, for balancing the power loss of described single-ended reverse exciting converting power source module;
Described single-ended reverse exciting converting power source module, for carrying out corresponding signals collecting, and be that the power cell circuit board that described energy taking device outside connects is powered, one end of the output of described single-ended reverse exciting converting power source module connects the input of described power supply output protection and signal feedback module, the other end of the output of described single-ended reverse exciting converting power source module connects the input of described power cell circuit board, wherein, described power supply output protection and signal feedback module and described power cell circuit board are connected in series;
Described power supply output protection and signal feedback module, process accordingly for corresponding fault-signal being transferred to described power cell circuit board, wherein, the output of described power supply output protection and signal feedback module connects the input of described power cell circuit board;
Described power cell circuit board, it is connected with described energy taking device outside, and described power cell circuit board is as the load of described energy taking device, and described power cell circuit board is the core control panel of corresponding power model.
2. power model DC bus energy taking device as claimed in claim 1, it is characterized in that, the transformer of described single-ended reverse exciting converting power source module is coupling inductance, for energy storage, transformation and transferring energy.
3. power model DC bus energy taking device as claimed in claim 1 or 2, it is characterized in that, the influencing factor of described single-ended reverse exciting converting power source module comprises the influencing factor of the main switch resistance to pressure of input voltage influencing factor, output voltage influencing factor, the influencing factor of power output of each circuit, the influencing factor of switching frequency and corresponding circuit.
4. power model DC bus energy taking device as claimed in claim 1, is characterized in that, encapsulates, described single-ended reverse exciting converting power source module and described power supply output protection and signal feedback module to become corresponding power module.
5. power model DC bus energy taking device as claimed in claim 4, it is characterized in that, described energy taking device also comprises module controls plate, described module controls plate for control described energy taking device modules between normal operating conditions.
6. power model DC bus energy taking device as claimed in claim 5, it is characterized in that, described module controls plate comprises the first module controls Slab element, for controlling the operating state of described power module circuitry, to make the working power state of its output for pre-setting, the output of described power module is connected with the input of described first module controls plate, and the output of described first module controls plate is connected with the input of described duplicate supply handover module.
7. power model DC bus energy taking device as claimed in claim 5; it is characterized in that; described module controls plate comprises the second module controls Slab element; for monitoring and processing the operating state of described power supply output protection and signal feedback module, the input of described second module controls Slab element is connected with the output of described power supply output protection and signal feedback module.
8. power model DC bus energy taking device as claimed in claim 1, it is characterized in that, described build-out resistor module comprises parameter monitoring unit, parameter acquisition unit, the monitoring means of power supply active loss of corresponding circuit and the collecting unit of the power supply active loss of corresponding circuit and computing unit.
9. as right wants the power model DC bus energy taking device as described in 8, it is characterized in that, described build-out resistor module comprises the first parameter monitoring unit, the monitoring means of the first parameter acquisition unit, accordingly the power supply active loss of circuit and the collecting unit of power supply active loss of corresponding circuit and the computing unit of the first parameter, and described first parameter refers to and the resistance that described build-out resistor module is mated.
10. as right wants the power model DC bus energy taking device as described in 8, it is characterized in that, described build-out resistor module comprises the second parameter monitoring unit, the monitoring means of the second parameter acquisition unit, accordingly the power supply active loss of circuit and the collecting unit of power supply active loss of corresponding circuit and the computing unit of the second parameter, and described second parameter refers to the power that described build-out resistor module is mated.
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| CN201510139731.9A CN104795883B (en) | 2015-03-27 | 2015-03-27 | Power model dc bus energy taking device |
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| CN201510139731.9A CN104795883B (en) | 2015-03-27 | 2015-03-27 | Power model dc bus energy taking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107317467A (en) * | 2017-08-08 | 2017-11-03 | 北京金风科创风电设备有限公司 | Drive control system of power electronic power module and energy-taking power supply thereof |
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| CN102638048A (en) * | 2012-03-29 | 2012-08-15 | 威凡智能电气高科技有限公司 | Automatic bypass processing method of H-bridge cascaded chain type static synchronous compensator (STATCOM) |
| JP2013027260A (en) * | 2011-07-26 | 2013-02-04 | Hitachi Ltd | Power conversion apparatus |
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| CN201608533U (en) * | 2009-08-13 | 2010-10-13 | 北京思能达节能电气股份有限公司 | Hybrid dynamic reactive compensation system applied to power grid |
| JP2013027260A (en) * | 2011-07-26 | 2013-02-04 | Hitachi Ltd | Power conversion apparatus |
| CN102638048A (en) * | 2012-03-29 | 2012-08-15 | 威凡智能电气高科技有限公司 | Automatic bypass processing method of H-bridge cascaded chain type static synchronous compensator (STATCOM) |
| CN202771178U (en) * | 2012-09-14 | 2013-03-06 | 广东电网公司东莞供电局 | Redundancy switching device of STATCOM (Static Synchronous Compensator) control system |
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| CN107317467A (en) * | 2017-08-08 | 2017-11-03 | 北京金风科创风电设备有限公司 | Drive control system of power electronic power module and energy-taking power supply thereof |
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