WO2022037732A1 - Electric power flow controller - Google Patents
Electric power flow controller Download PDFInfo
- Publication number
- WO2022037732A1 WO2022037732A1 PCT/CZ2021/050087 CZ2021050087W WO2022037732A1 WO 2022037732 A1 WO2022037732 A1 WO 2022037732A1 CZ 2021050087 W CZ2021050087 W CZ 2021050087W WO 2022037732 A1 WO2022037732 A1 WO 2022037732A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric power
- controller
- printed circuit
- power
- power flow
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
Definitions
- the present invention relates to an electric power flow controller, which serves in particular for controlling the operation of an AC or DC electric motor.
- the electric motor When connected to the power supply, the electric motor starts up at some speed.
- many applications of electric motors require that the electric motors have variable speed.
- power controllers have begun to be used, which can change the power supply parameters of the electric motor in a controlled manner, thus essentially controlling the operation of the electric motor.
- Known types of electric motors according to the design include, for example, BLDC electric motors or PMSM electric motors, etc.
- Controllers fall into the category of so-called power electronics, which is nowadays a very intensively developing technical field, which is focused on the effective control of the flow of electric power, which is used to supply a wide range of appliances.
- the task of power applications falling into this technical field is the conversion, control and modification of electric power, the conversion being a change of at least one characteristic quantity of the power system by means of electronic switching components without significantly higher power loss.
- Power controllers can be generally described by technical features, including a rectangular printed circuit board that provides support for electronic components, as well as electronic components designed to meet the goal of power application, and last but not least, electrically conductive printed circuit boards, which serve as electric power interconnections between electronic components.
- An example of a power controller can be, for example, the invention in invention application PV 2003-333 A.
- a known shortcoming of controllers operating with large flows of electric power involves the problem of waste heat. As the flow of electric power passes through the printed circuit boards and electronic components across the printed circuit board, it must overcome their ohmic electric resistance.
- Another known disadvantage is the presence of parasitic inductance between adjacent electric elements of the printed circuit board (so-called inductance of PCB conductive paths).
- the task of the invention is to provide a power controller, the construction of which would enable efficient removal of waste heat of power components and at the same time supply /discharge high flows to/from power components.
- the set task is solved by means of an electric power flow controller created according to the invention below.
- Custom means that the flow of electric power is conducted between the shorter sides of the rectangular printed circuit board. This means that the flow of electric power had to overcome, in a simplified concept, the distance corresponding to the longer side of the printed circuit board.
- the components are arranged so that the flow of electric power overcomes the printed circuit board over the length of its shorter side.
- This is advantageous because by shortening and widening the path of electric power flow through the controller, the losses caused by ohmic resistance and parasitic inductance are also reduced.
- the controller therefore produces less waste heat and has better quality output electric power characteristics.
- input terminals are arranged on one of the longer sides of the printed circuit board for supply of electric power flow to the controller and output terminals are arranged on the other of the longer sides of the printed circuit board for discharge of electric power flow from the controller.
- the advantages of the controller include lower waste heat production, the ability to process higher electric power, due to lower waste heat production and at the same time due to the ability to create shorter but wider printed circuits (i.e. larger flows). Thanks to the new topological distribution, a lower parasitic inductance of the circuits is also advantageous.
- Fig. 1 shows the conventional connection of the power components of power controller
- Fig. 2 shows a common topology of the power components of power controller on the printed circuit board
- Fig. 3 shows a new topological layout of the power components of power controller on the printed circuit board.
- Fig. 1 shows the conventional connection of the components of the power part 7 of the controller, in particular for BEDC and PMSM electric motors.
- the power part 7 of the controller is connected via the input terminals 2 to the power supply 1, which can be both a battery and any source of DC voltage capable of supplying the necessary electric currents.
- the electric motor 6 is directly connected to the output terminals 5 of the power part 7.
- This part 7 of the controller mainly contains power switching elements 4 for three phases. Furthermore, the power part 7 comprises a set of capacitors 3 of a DC supply bus.
- the present invention does not provide a method for sensing currents, both phase and input. This can be solved by a person skilled in the art by means of sensors on the phase conductors or on the underside of the half -bridges and in the current measurement, both in the positive and in the negative branches of the bus. Likewise, the solution of current sensing technology is not described, which can be solved by a person skilled in the art with the use of sensing resistors, specialized integrated circuits, Hall probes, etc.
- Fig. 2 shows the topology of the distribution of components on the printed circuit board 8 of a very common design of the controller. This established solution is characterized by a larger dimension “A” of the printed circuit board 8 than a dimension “B”, which makes the controller longer in the direction of the flow of electric power from the power supply 1 towards the electric motor 6.
- Fig. 3 shows the topology of the distribution of components on the printed circuit board 8 of the controller of the invention. It is basically a matter of shortening and widening the controller for the direction of the flow of electric power. “A” ⁇ “B” applies to the dimensions, which, when comparing the test results with the solution according to Fig. 2, brings a lower ohmic resistance and the associated emission of waste heat and a reduction of parasitic inductance.
- the electric power flow controller according to the invention finds its application in the field of regulation of electrical appliances, in particular electric motors. List of reference numerals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Structure Of Printed Boards (AREA)
Abstract
Electric power flow controller Electric power flow controller designed especially for controlling the operation of the electric motor (6) wherein within the topology of distribution of its components on the rectangular printed circuit board (8) the components are topologically distributed in terms of electric power flow through the rectangular printed circuit board (8) between its longer sides.
Description
Electric power flow controller
Field of the Invention
The present invention relates to an electric power flow controller, which serves in particular for controlling the operation of an AC or DC electric motor.
Background of the Invention
When connected to the power supply, the electric motor starts up at some speed. However, many applications of electric motors require that the electric motors have variable speed. For this purpose, power controllers have begun to be used, which can change the power supply parameters of the electric motor in a controlled manner, thus essentially controlling the operation of the electric motor. Known types of electric motors according to the design include, for example, BLDC electric motors or PMSM electric motors, etc.
Controllers fall into the category of so-called power electronics, which is nowadays a very intensively developing technical field, which is focused on the effective control of the flow of electric power, which is used to supply a wide range of appliances. The task of power applications falling into this technical field is the conversion, control and modification of electric power, the conversion being a change of at least one characteristic quantity of the power system by means of electronic switching components without significantly higher power loss.
Power controllers can be generally described by technical features, including a rectangular printed circuit board that provides support for electronic components, as well as electronic components designed to meet the goal of power application, and last but not least, electrically conductive printed circuit boards, which serve as electric power interconnections between electronic components. An example of a power controller can be, for example, the invention in invention application PV 2003-333 A.
A known shortcoming of controllers operating with large flows of electric power involves the problem of waste heat. As the flow of electric power passes through the printed circuit boards and electronic components across the printed circuit board, it must overcome their ohmic electric resistance. Another known disadvantage is the presence of parasitic inductance between adjacent electric elements of the printed circuit board (so-called inductance of PCB conductive paths).
The task of the invention is to provide a power controller, the construction of which would enable efficient removal of waste heat of power components and at the same time supply /discharge high flows to/from power components.
Summary of the Invention
The set task is solved by means of an electric power flow controller created according to the invention below.
The summary of the invention is based on the fact that the custom of the topological distribution of the controller components on the rectangular printed circuit board is changed. Custom means that the flow of electric power is conducted between the shorter sides of the rectangular printed circuit board. This means that the flow of electric power had to overcome, in a simplified concept, the distance corresponding to the longer side of the printed circuit board.
Conversely, in the invention, the components are arranged so that the flow of electric power overcomes the printed circuit board over the length of its shorter side. This is advantageous because by shortening and widening the path of electric power flow through the controller, the losses caused by ohmic resistance and parasitic inductance are also reduced. The controller therefore produces less waste heat and has better quality output electric power characteristics.
According to the idea of the invention, it is therefore preferred if input terminals are arranged on one of the longer sides of the printed circuit board for supply of electric power flow to the controller and output terminals are arranged on the other of the longer sides of the printed circuit board for discharge of electric power flow from the controller.
The advantages of the controller include lower waste heat production, the ability to process higher electric power, due to lower waste heat production and at the same time due to the ability to create shorter but wider printed circuits (i.e. larger flows). Thanks to the new topological distribution, a lower parasitic inductance of the circuits is also advantageous.
Explanation of drawings
The present invention will be explained in detail by means of the following figures where:
Fig. 1 shows the conventional connection of the power components of power controller,
Fig. 2 shows a common topology of the power components of power controller on the printed circuit board,
Fig. 3 shows a new topological layout of the power components of power controller on the printed circuit board.
Example of the invention embodiments
It shall be understood that the specific cases of the invention embodiments described and depicted below are provided for illustration only and do not limit the invention to the examples provided here. Those skilled in the art will find or, based on routine experiment, will be able to provide a greater or lesser number of equivalents to the specific embodiments of the invention which are described here.
Fig. 1 shows the conventional connection of the components of the power part 7 of the controller, in particular for BEDC and PMSM electric motors. The power part 7 of the controller is connected via the input terminals 2 to the power supply 1, which can be both a
battery and any source of DC voltage capable of supplying the necessary electric currents. The electric motor 6 is directly connected to the output terminals 5 of the power part 7.
This part 7 of the controller mainly contains power switching elements 4 for three phases. Furthermore, the power part 7 comprises a set of capacitors 3 of a DC supply bus.
For the sake of clarity, the present invention does not provide a method for sensing currents, both phase and input. This can be solved by a person skilled in the art by means of sensors on the phase conductors or on the underside of the half -bridges and in the current measurement, both in the positive and in the negative branches of the bus. Likewise, the solution of current sensing technology is not described, which can be solved by a person skilled in the art with the use of sensing resistors, specialized integrated circuits, Hall probes, etc.
Fig. 2 shows the topology of the distribution of components on the printed circuit board 8 of a very common design of the controller. This established solution is characterized by a larger dimension “A” of the printed circuit board 8 than a dimension “B”, which makes the controller longer in the direction of the flow of electric power from the power supply 1 towards the electric motor 6.
Fig. 3 shows the topology of the distribution of components on the printed circuit board 8 of the controller of the invention. It is basically a matter of shortening and widening the controller for the direction of the flow of electric power. “A” < “B” applies to the dimensions, which, when comparing the test results with the solution according to Fig. 2, brings a lower ohmic resistance and the associated emission of waste heat and a reduction of parasitic inductance.
Industrial applicability
The electric power flow controller according to the invention finds its application in the field of regulation of electrical appliances, in particular electric motors.
List of reference numerals
1 power supply
2 input terminals
3 set of capacitors
4 switching element
5 output terminals
6 electric motor
7 power part of the controller
8 printed circuit board
Claims
6
CLAIMS Electric power flow controller, in particular for controlling the operation of the electric motor (6), characterized in that within the topology of distribution of its components on the rectangular printed circuit board (8) the components are topologically distributed in terms of electric power flow through the rectangular printed circuit board (8) between its longer sides. Controller according to claim 1, characterized in that on one of the longer sides of the printed circuit board (8) the input terminals (2) are arranged for supply of electric power flow to the controller, and on the other of the longer sides output terminals (5) are arranged for discharge of electrical power flow from the controller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZPUV2020-37885 | 2020-08-17 | ||
| CZ202037885U CZ35755U1 (en) | 2020-08-17 | 2020-08-17 | Regulator arrangement for electric power flow control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022037732A1 true WO2022037732A1 (en) | 2022-02-24 |
Family
ID=80115831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2021/050087 WO2022037732A1 (en) | 2020-08-17 | 2021-08-17 | Electric power flow controller |
Country Status (2)
| Country | Link |
|---|---|
| CZ (1) | CZ35755U1 (en) |
| WO (1) | WO2022037732A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9936580B1 (en) * | 2015-01-14 | 2018-04-03 | Vlt, Inc. | Method of forming an electrical connection to an electronic module |
-
2020
- 2020-08-17 CZ CZ202037885U patent/CZ35755U1/en active IP Right Grant
-
2021
- 2021-08-17 WO PCT/CZ2021/050087 patent/WO2022037732A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9936580B1 (en) * | 2015-01-14 | 2018-04-03 | Vlt, Inc. | Method of forming an electrical connection to an electronic module |
Non-Patent Citations (2)
| Title |
|---|
| "Design desky plosnych spoju - Jak spravne rozmistit soucastky na DPS (2. cast", SOS ELECTRONIC, 4 August 2017 (2017-08-04), Retrieved from the Internet <URL:https://web.archive.org/web/20170804043902/https:/vyvoj.hw.cz/design-desky-plosnych-spoju-jak-spravne-rozmistit-soucastky-na-dps-2-cast.htmls> [retrieved on 20211122] * |
| JAROSLAV CIRKOVSKY: "METODY NÁVRHU DESEK PLOŠNÝCH SPOJŮ / METHODS OF PRINTED CIRCUIT BOARD DESIGN ", BACHELOR THESIS BRNO UNIVERSITY OF TECHNOLOGY, 1 January 2008 (2008-01-01), pages 1 - 53, XP055910941 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ35755U1 (en) | 2022-02-01 |
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