WO1999041817A1 - Vorrichtung und verfahren zur regelung parallel geschalteter spannungswandler - Google Patents
Vorrichtung und verfahren zur regelung parallel geschalteter spannungswandler Download PDFInfo
- Publication number
- WO1999041817A1 WO1999041817A1 PCT/DE1999/000374 DE9900374W WO9941817A1 WO 1999041817 A1 WO1999041817 A1 WO 1999041817A1 DE 9900374 W DE9900374 W DE 9900374W WO 9941817 A1 WO9941817 A1 WO 9941817A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- converter
- converters
- voltage
- subordinate
- controller
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
Definitions
- Network links caused by the spatially separated arrangement of the single converter.
- converters are connected in parallel by operating several independent converters in parallel. (Master-slave operation).
- the valve control signal transistor control signal
- the switch-on pulses of the switching transistors of the master converter are transferred to the slave converters.
- the master generates control signals for the power semiconductors, which are then transmitted to the output stages of the converters connected in parallel.
- the main advantage of the inventive concept presented here is that the vibration problem is solved with voltage converters connected in parallel.
- the state of the art is represented primarily by the parallel connection of identical single converters. In the case presented here, however, each individual converter retains parts of the controller and above all the actuator with the associated signal linkage for the different operating modes.
- the advantage here is that even spatially separate systems can be operated safely. A restriction to a predetermined number of converters is not necessary.
- the output of setpoints for a subordinate control loop or an actuator results in a symmetrization of the load on the individual converter.
- the higher-level converter can also selectively switch off individual lower-level converters.
- a further advantage in the parallelization of the converters is a better efficiency of the overall system, since the individual converter is loaded less (load current or can be operated at optimum efficiency).
- FIG. 1 shows an arrangement of the individual converters using the example of a DC / DC converter
- FIG. 2 shows a control structure of the superimposed circuit of converter 1
- FIG. 3 shows a structure of the subordinate control and actuating elements.
- FIG. 1 shows the arrangement of the individual converters in a system with several voltage converters using the example of DC / DC converters. Such an arrangement can e.g. in one
- Vehicle electrical system with different voltages are used.
- a two or multi-voltage electrical system e.g. Ul the vehicle electrical system voltage, which is supplied by the generator.
- the DC / DC converters 10, 11 and 12 supply the voltage U2.
- the DC / DC converter is connected via a parallel bus 13.
- FIG. 2 shows the control structure of the superposed circuit of the transducer 1, for example, the transducer 10 of FIG. 1 corresponds to and which operates as the main converter. It includes one
- the controller 17 determines the internal manipulated variable (output variable) IB. In this arrangement, when using a parallel bus, the first converter 1 must assume the management function.
- the internal manipulated variable can be, for example, an analog current setpoint for a lower-level current controller or a digital manipulated variable.
- the transmission for digital values can be optical or performance-related.
- transducers themselves can be freely arranged in space, the superimposed control being carried out by transducer 1, i.e. the voltage regulation to the controlled variable only takes place at the geometric location of converter 1.
- the output variable of the main converter (or of the higher-level controller in converter 1) serves as a setpoint specification for the lower-level controllers.
- the structure shown in FIG. 3 is obtained for the subordinate controllers in converters 1 to n (10, 11, 12, ).
- the setpoint specification for this subordinate circuit is free, i.e. to be seen analog or digital.
- the output variable of the higher-level controller in converter 1 serves as setpoint specification 19 and is supplied via a parallel bus. From the setpoint specification 19 and
- the internal command variable 21 is formed for the lower-level controller and the actuator 21 to form the manipulated variable 21.
- the control functions can be carried out according to the following two modifications:
- Modification 1 The controller integrated in the master passes on its PWM signal to the slave converter unfiltered, but transmits additional signals, such as the enable signals for transistors, synchronous rectifiers, as well as the current sign (in bi-directional operation). Furthermore, switch-on and switch-off signals for the Transfer total converter to switch the supply on and off.
- Modification 2 The controller integrated in the master transmits its subordinate current setpoint analog or digital to the slave output stages, but, as already mentioned in modification 1, transmits additional signals.
- the lower-level converter can thus be completely controlled by the master (from switching on and off to assigning the lower-level current setpoints for the output stages).
- the devices shown and the associated methods for controlling voltage converters connected in parallel can be e.g. Use in vehicle electrical systems or in any power supply that requires a high output power and should be distributed to several converters if possible.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99907323A EP1055274A1 (de) | 1998-02-13 | 1999-02-11 | Vorrichtung und verfahren zur regelung parallel geschalteter spannungswandler |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19805929 | 1998-02-13 | ||
DE19805929.9 | 1998-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999041817A1 true WO1999041817A1 (de) | 1999-08-19 |
Family
ID=7857624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/000374 WO1999041817A1 (de) | 1998-02-13 | 1999-02-11 | Vorrichtung und verfahren zur regelung parallel geschalteter spannungswandler |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1055274A1 (de) |
WO (1) | WO1999041817A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1143591A2 (de) * | 2000-03-30 | 2001-10-10 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Regelung des Parallelbetriebes von Gleichspannungswandlern |
WO2001096973A2 (en) * | 2000-06-15 | 2001-12-20 | Lambda Emi, Inc. | Pulse rectifiers in master/slave mode |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4174534A (en) * | 1978-01-20 | 1979-11-13 | Northern Telecom Limited | Master-slave voltage regulator employing pulse width modulation |
US5428523A (en) * | 1993-03-30 | 1995-06-27 | Ro Associates | Current sharing signal coupling/decoupling circuit for power converter systems |
DE19546495A1 (de) * | 1995-12-13 | 1997-06-19 | Aeg Stromversorgungs Syst Gmbh | Schaltungsanordnung und Verfahren für eine gleichmäßige Aufteilung der elektrischen Leistung |
-
1999
- 1999-02-11 WO PCT/DE1999/000374 patent/WO1999041817A1/de not_active Application Discontinuation
- 1999-02-11 EP EP99907323A patent/EP1055274A1/de not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4174534A (en) * | 1978-01-20 | 1979-11-13 | Northern Telecom Limited | Master-slave voltage regulator employing pulse width modulation |
US5428523A (en) * | 1993-03-30 | 1995-06-27 | Ro Associates | Current sharing signal coupling/decoupling circuit for power converter systems |
DE19546495A1 (de) * | 1995-12-13 | 1997-06-19 | Aeg Stromversorgungs Syst Gmbh | Schaltungsanordnung und Verfahren für eine gleichmäßige Aufteilung der elektrischen Leistung |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1143591A2 (de) * | 2000-03-30 | 2001-10-10 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Regelung des Parallelbetriebes von Gleichspannungswandlern |
EP1143591A3 (de) * | 2000-03-30 | 2004-06-30 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Regelung des Parallelbetriebes von Gleichspannungswandlern |
WO2001096973A2 (en) * | 2000-06-15 | 2001-12-20 | Lambda Emi, Inc. | Pulse rectifiers in master/slave mode |
WO2001096973A3 (en) * | 2000-06-15 | 2002-08-29 | Lambda Emi Inc | Pulse rectifiers in master/slave mode |
US6516233B1 (en) | 2000-06-15 | 2003-02-04 | Lambda Emi, Inc. | Pulse plating rectifiers and methods, systems and computer program products for controlling pulse plating rectifiers in master/slave mode |
Also Published As
Publication number | Publication date |
---|---|
EP1055274A1 (de) | 2000-11-29 |
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