EP2820750A2 - Systeme d'alimentation - Google Patents
Systeme d'alimentationInfo
- Publication number
- EP2820750A2 EP2820750A2 EP13707355.7A EP13707355A EP2820750A2 EP 2820750 A2 EP2820750 A2 EP 2820750A2 EP 13707355 A EP13707355 A EP 13707355A EP 2820750 A2 EP2820750 A2 EP 2820750A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- power supply
- voltage
- supply module
- input
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/06—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using impedances
- H02M5/08—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using impedances using capacitors only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/0074—Plural converter units whose inputs are connected in series
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/0077—Plural converter units whose outputs are connected in series
Definitions
- the invention relates to a power system comprising at least one power supply module for supplying at least one electrical appliance via a high voltage line or HTA.
- the object of the invention is to supply a low-power electrical appliance with a high-voltage line without it being necessary to have a connection to a LV line or to use heavy and bulky means.
- the power supply system comprises several power supply modules defining a chain of power supply modules for supplying at least one electrical device, and generating, from a voltage and a current of a line.
- the system further comprising a line capacity connected to the high voltage line and the input capacitors of the power supply modules, the capacitors input power supply modules and the line capacitance being connected in series, the input capacitors of the power supply modules forming with the line capacitance a capacitive divider connected to the power supply module so that the voltage of Input of each power module is obtained by dividing the voltage of the line by means of the capacitive voltage divider and the input current is a current derived by the line capacitance.
- a power supply module supplying an electrical appliance is connected directly to a high-voltage line via the line capacity. It is therefore no longer necessary to connect the electrical device to a low-voltage line.
- the input voltage supplied to the power supply module is the voltage of the line divided by a capacitive divider formed by the line capacitance and the input capacitance of the power supply module. This power system is less complex and much lighter and cumbersome than a winding transformer.
- FIG. 1 to 3 show schematically several arrangements of power supply modules of a power system of the invention
- FIG. 4 represents a filter stage of a supply module of a supply system of the invention.
- the power supply system of the invention comprises several power supply modules 1 (four modules are used here) for powering an electrical appliance 2, of the repeater equipment type for communication.
- CPL by an HTA line 4, carrying an AC line voltage VI of effective voltage equal to 12kV.
- the power system is connected to a first armature of a line capacity 3, a second armature of which is connected to the line 4.
- the line capacitance 3 is first used to provide a common input current to the power modules, the input current being derived by the line capacitance.
- the line capacitance 3 is not a purely capacitive component. On the contrary, it can be modeled by a perfect capacitance associated with a series resistance and a resistance in parallel (as well as a series inductance whose incidence is sensitive only at high frequency).
- this line capacity 3 connected to the line HTA 4 forms a current generator that can supply a few milliamperes necessary for the modules constituting the power supply of the electrical apparatus 2.
- the line capacitance is also used to supply an input voltage Ve to each supply module 1.
- This input voltage Ve is obtained by dividing the voltage of the line VI.
- each power supply module 1 comprises an input capacitor 5.
- the line capacity 3 and the input capacitors 5 of the power supply modules 1 are connected in series, thus forming a chain of capacitors and therefore a chain 6 of modules Power.
- a capacitive voltage divider is thus created, which makes it possible to impose an input voltage Ve at the input of each of the power supply modules 1, the value of which depends on the line voltage VI and the values of the capacitance line 3 and input capabilities 5.
- each power supply module 1 is arranged in a manner known per se to generate at its output an output current Is and an output voltage Vs at terminals of a high potential output Sh and a low potential output Sb.
- the power supply modules 1 cooperate to supply a supply voltage Valim and a supply current Ialim to the electrical apparatus.
- the invention provides for arranging the power supply modules 1 so that the voltage Valim and the current Ialim, or only one of these two magnitudes, are greater than the voltage Vs and the output current Is of only one of the power supply modules 1.
- the low potential output Sb will be connected. from a power supply module 1 to the high potential output Sh of the power supply module 1 succeeding it in the chain 6, as can be seen in FIG. 1.
- the low potential output Sb of the last module of the chain will be connected to the ground of this module.
- the two other high potential outputs Sh and two low potential outputs Sb are connected to each other; the last two low potential outputs Sb are connected to the ground of the corresponding module.
- a capacity of 1500 pF (for picofarads) is chosen for the line capacity, which generates an average current slightly greater than 5.5 mA (from a line voltage of 12 kVeff).
- the input capacitors 5 of the power supply modules 1 are then sized according to two criteria:
- the input voltage Ve of the modules 1 must correspond to the rated operating voltages of the components of the power supply modules.
- input capacitors 5 of 20 nanofarads each are chosen, which allows to obtain an input voltage Ve for each power supply module equal to 355 volts.
- a power supply module 1 To provide an output voltage Vs (here equal to 3 Volts), and an output current Is (here equal to 300 mA), a power supply module 1 comprises, in addition to the input capacitor 5, three main stages: a filter stage 7, a rectifier stage 8, a supply stage 9.
- the filter stage 7, visible in FIG. 4, is connected in parallel with the input capacitance, to supply a voltage V filtered from the input voltage.
- the filtering stage 7 comprises differential mode filtering means and common mode filtering means.
- the filtering stage thus comprises at least one, here two, RLC cells 80 for differential mode filtering for filtering low-frequency disturbances (below 150 kilohertz-KHz), and at least one common mode inductance 90 enabling to filter disturbances of higher frequencies (from 150 KHz to a few megahertz). These disturbances come from line HTA 4 and are transmitted to module 1 via line capacity 3 and input capacitors 5.
- the rectifier stage 8 converts the filtered filter voltage Vfiltrée alternative into a DC voltage Vc, and provides a DC current.
- the power stage comprises a switching power supply type Flyback (generating a DC voltage of 3 volts from the DC voltage Vc supplied by the rectifier).
- the Flyback power supply has a galvanic isolation between its input and output, which ensures that the electrical components of the electrical device will not be subject at a voltage of an order of magnitude of the input voltage Ve (355 volts in the example described above).
- At least one high potential output Sh of at least one of the power supply modules 1 is preferably connected to a low potential output Sb of another of the modules. feeding 1.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1251837A FR2987523B1 (fr) | 2012-02-29 | 2012-02-29 | Systeme d'alimentation |
| PCT/EP2013/054012 WO2013127910A2 (fr) | 2012-02-29 | 2013-02-28 | Systeme d'alimentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2820750A2 true EP2820750A2 (fr) | 2015-01-07 |
Family
ID=46754520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13707355.7A Withdrawn EP2820750A2 (fr) | 2012-02-29 | 2013-02-28 | Systeme d'alimentation |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2820750A2 (fr) |
| FR (1) | FR2987523B1 (fr) |
| WO (1) | WO2013127910A2 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111290328B (zh) * | 2020-02-18 | 2022-09-13 | 唐山鼎信电器仪表工程有限公司 | 一种plc控制抗干扰系统 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19600962A1 (de) * | 1996-01-12 | 1997-07-17 | Siemens Ag | Schaltnetzteil mit verlustleistungsarmem Standby-Betrieb |
| CN2526854Y (zh) * | 2002-02-05 | 2002-12-18 | 周友东 | 电压传感器 |
| FR2870650B1 (fr) * | 2004-05-21 | 2006-08-11 | Electricite De France | Procede et installation d'alimentation en energie electrique |
| US8279642B2 (en) * | 2009-07-31 | 2012-10-02 | Solarbridge Technologies, Inc. | Apparatus for converting direct current to alternating current using an active filter to reduce double-frequency ripple power of bus waveform |
-
2012
- 2012-02-29 FR FR1251837A patent/FR2987523B1/fr not_active Expired - Fee Related
-
2013
- 2013-02-28 WO PCT/EP2013/054012 patent/WO2013127910A2/fr not_active Ceased
- 2013-02-28 EP EP13707355.7A patent/EP2820750A2/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013127910A3 (fr) | 2013-10-31 |
| FR2987523B1 (fr) | 2016-05-13 |
| WO2013127910A2 (fr) | 2013-09-06 |
| FR2987523A1 (fr) | 2013-08-30 |
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