CN216871052U

CN216871052U - Converter controller, converter and wind generating set

Info

Publication number: CN216871052U
Application number: CN202220243720.0U
Authority: CN
Inventors: 林振斌
Original assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Current assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-07-01
Anticipated expiration: 2032-01-29

Abstract

The application discloses converter controller, converter and wind generating set. The converter controller includes: the device comprises a dual-core chip, an analog-to-digital converter and a general input/output interface; wherein: the dual-core chip is connected with the analog-to-digital converter through a general analog quantity acquisition interface and provides a general input and output interface; the analog-to-digital converter is used for being connected with an analog quantity acquisition interface component of the converter, and the analog quantity acquisition interface component is used for converting the levels of different analog quantity signals into levels adaptive to the universal analog quantity acquisition interface; the universal input and output interface is used for being connected with a power interface component of the converter, and the universal input and output interface is used for receiving control signals provided by the power interface component and used for switching and collecting different analog quantity signals. According to the embodiment of the application, the dual-core chip can replace the structure of two chips in the related technology, so that the communication and the complex power-on time sequence between the two chips can be avoided, and the installation structure is simple.

Description

Converter controller, converter and wind generating set

Technical Field

The application belongs to the technical field of wind power, and particularly relates to a converter controller, a converter and a wind generating set.

Background

At present, a converter controller provided in the related art generally employs two circuit boards, wherein one circuit board mainly includes two main chips, and a large number of interfaces are designed on the other circuit board, and the functions of the converter controller are realized through the connection of the two circuit boards. However, the converter controller needs two chips, the mounting structure is complex, and the communication and power-on sequence between the two main chips is also complex.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a converter controller, a converter and a wind generating set, and can solve the technical problem that the installation structure of the converter controller is complex.

In a first aspect, an embodiment of the present application provides a converter controller, for a converter, including: the device comprises a dual-core chip, an analog-to-digital converter and a general input/output interface; wherein:

the dual-core chip is connected with the analog-to-digital converter through a general analog quantity acquisition interface and provides a general input and output interface;

the analog-to-digital converter is used for being connected with an analog quantity acquisition interface component of the converter, and the analog quantity acquisition interface component is used for converting the levels of different analog quantity signals into levels adaptive to the universal analog quantity acquisition interface;

the universal input and output interface is used for being connected with a power interface component of the converter, and the universal input and output interface is used for receiving control signals provided by the power interface component and used for switching and collecting different analog quantity signals.

Optionally, the dual-core chip, the analog-to-digital converter and the general input/output interface are integrated on a single circuit board.

Optionally, the two cores of the dual-core chip are a processing system and a programmable logic gate array, respectively.

Optionally, the single circuit board further integrates an optical fiber interface and/or a low-voltage differential signal transmission expansion interface connected with the processing system.

Optionally, a network port and/or a readable storage medium connected with the programmable logic gate array are/is further integrated on the single circuit board.

Optionally, the analog-to-digital converter and the general input/output interface are connected with the programmable logic gate array; or/and the (co) polymer(s),

the input impedance of the analog-to-digital converter is configured to be above a preset threshold.

Optionally, the universal input output interface is further configured to send a fault signal to the power interface component.

Optionally, the dual-core chip is a ZynQ chip.

In a second aspect, embodiments of the present application provide a converter including a converter controller as in the first aspect.

In a third aspect, the present application provides a wind turbine generator system, including the converter as in the second aspect.

The converter controller comprises a dual-core chip, an analog-to-digital converter and a general input/output interface, wherein the general analog quantity acquisition interface of the dual-core chip is connected with the analog-to-digital converter, the analog-to-digital converter is connected with an analog quantity acquisition interface component of the converter, and the analog quantity acquisition interface component converts the levels of different analog quantity signals into levels matched with the general analog quantity acquisition interface, so that the dual-core chip can be matched with different analog quantity signals; the dual-core chip also provides a universal input/output interface, the universal input/output interface is connected with the power interface component of the converter, so that the universal input/output interface receives a control signal provided by the power interface component and used for switching and collecting different analog quantity signals, thus, the dual-core chip can realize the functions realized by the two chips in the related technology, the dual-core chip replaces the structure of the two chips in the related technology, the communication and the complex power-on time sequence between the two chips can be avoided, and the installation structure is simple.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings may be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a current transformer provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a converter controller provided in another embodiment of the present application; for ease of understanding, the analog acquisition interface component and the power interface component are also shown.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.

In order to solve the prior art problem, the embodiment of the application provides a converter controller, a converter and a wind generating set. The converter controller provided in the embodiments of the present application will be described first.

The embodiment of the application provides a converter controller, and fig. 1 shows a schematic diagram of a converter including the converter controller according to an embodiment of the application. As shown in fig. 1, the converter controller 100 includes: a dual-core chip 101, an Analog-to-Digital Converter (ADC) 102, and a general purpose input-output interface 103.

Referring to fig. 1, the dual-core chip 101 is connected to the analog-to-digital converter 102 through a universal analog quantity acquisition interface 1011, and the universal analog quantity input (± 10V) can be adopted by the analog quantity acquisition interface 1011. In addition, the dual core chip 101 also provides a general purpose input output interface 103.

Alternatively, the two cores of the dual core chip 101 are a Processing System (PS) and a Programmable Logic gate array (PL). Specifically, the dual core chip may use a ZynQ chip, a Micro Controller Unit (MCU), an arm (advanced RISC machine) processor, a Central Processing Unit (CPU), a Field Programmable Gate Array (FPGA), or the like. In one example, the dual core chip 101 may select the XC72020 model of the ZynQ family of chips.

By adopting one dual-core chip, compared with the design of adopting two chips in the related technology, the embodiment of the application can reduce the communication between the chips, reduce the design of programs, greatly reduce the complexity of the converter controller and improve the reliability of the converter controller.

Referring to fig. 1, the analog-to-digital converter 102 is connected to an analog acquisition interface assembly 201 of a current transformer 200. The analog quantity acquisition interface component 104 is used for converting the levels of different analog quantity signals into levels adapted to the general analog quantity acquisition interface 1011. Therefore, the dual-core chip 101 can adapt to different analog quantity inputs based on the function provided by the analog quantity acquisition interface component 201, so that the analog quantity can be conveniently expanded and replaced, different analog quantity interfaces are not required to be designed aiming at the analog quantity inputs of different levels, a circuit connected with the analog quantity inputs is not required to be redesigned, and the time and the cost for expanding and replacing the analog quantity inputs are saved. In addition, the +/-15V power supply required by analog quantity input can be moved to the outside for supplying power in a unified manner, so that the converter controller 100 is not required to provide the +/-15V power supply for the analog quantity input, the number of single-board isolation power supplies on the converter controller can be reduced, and the cost is reduced. In addition, since the analog input adopts a general signal range (± 10V), when simulation is performed, simulation can be performed directly using the analog input signal without performing level processing.

Referring to fig. 1, the general purpose input/output interface 103 is configured to be connected to a power interface component 202 of a converter 200, and the general purpose input/output interface 103 is configured to receive a control signal provided by the power interface component 202 to switch and collect signals of different analog quantities. That is, when the analog quantity signal is collected, the switching can be performed under the control of external input. Therefore, the program design of a dual-core chip can be reduced, and the adaptability of the converter controller is improved. Optionally, the universal input output interface may also be used to send a fault signal to the power interface component.

Alternatively, the dual core chip 101, the analog-to-digital converter 102, and the general input/output (IO) interface 103 may be integrated on a single Circuit Board (PCBA). Adopt single PCBA to realize converter controller, can reduce the complexity of structure, can lead to the condition that the structure is complicated, the installation degree of difficulty is high when avoiding using a plurality of PCBAs.

Referring to fig. 2, a converter controller 100 according to another embodiment of the present disclosure includes a dual core chip 101, an analog-to-digital converter (including ADC1 and ADC2), and a universal input/output (IO) interface (including 2 sets of 20 power modules DI for input and 2 sets of 38 power modules DO for output).

The two cores of the dual-core chip 101 are a processing system PS and a programmable logic gate array PL. ADC1 and ADC2 are both 16-way Analog Input (AI) acquisition, and may be connected to ADC1 and ADC2 through a plurality of different analog acquisition interface components, respectively, to implement different functions through different analog acquisition interface components. The general IO interface is connected with the power interface component.

The converter controller 100 shown in fig. 2 may be integrated on the same circuit board, and the single circuit board may further be integrated with an optical fiber interface connected to the processing system PS, and referring to fig. 2, the optical fiber interface may include reserved 100M optical fiber interfaces 1 and 2, and a 50M high-speed optical fiber (6 paths).

Referring to fig. 2, a Low-Voltage Differential Signaling (LVDS) expansion interface connected to the processing system PS may be integrated on the single circuit board. Referring to fig. 2, the LVDS expansion interface may include an LVDS expansion interface 1 and an LVDS expansion interface 2. The LVDS expansion interface may be connected with a communication Input Output (IO) interface component, and referring to fig. 2, may be connected with a communication Input Output (IO) interface component through an LVDS expansion interface 1.

Referring to fig. 2, the monolithic circuit board may also have integrated thereon a network port and/or a (machine) readable storage medium connected to the array of programmable logic gates PL. Referring to fig. 2, the portal may be a Local Area Network (LAN) portal. The readable storage medium can comprise a FLASH memory FLASH, a double-rate synchronous dynamic random access memory DDR and a secure digital SD card.

Referring to fig. 2, the analog-to-digital converter and the general input-output interface described above may be connected to the array of programmable logic gates PL.

Alternatively, the input impedance of the analog-to-digital converter may be configured to be higher than a preset threshold. The analog quantity is directly acquired by the high-impedance input analog-to-digital converter, and a +/-15V power supply for supplying power to the analog quantity can be transferred to the outside of the converter controller 100 for unified power supply, so that the use of an isolation power supply is reduced, and the cost is reduced.

Structurally, the converter controller provided by the embodiment of the application can be integrated on a single circuit board and fixed in a mode of a single plate plus a bottom plate structural member, and the complexity of the structure can be reduced by adopting the single plate.

It should be noted that the number of the analog quantities that can be collected by the analog quantity collection interface and the number of the general input/output interfaces may be set according to specific situations, and the number provided in the foregoing embodiments is not used to limit the embodiments of the present application.

The embodiment of the application further provides a converter, which comprises the converter controller provided by the embodiment of the application.

The embodiment of the application also provides a wind generating set, which comprises the converter provided by the embodiment of the application.

The functional blocks shown in the above schematic diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth.

The foregoing is only an embodiment of the present application, and it should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered by the scope of the present application.

Claims

1. A converter controller, comprising: the device comprises a dual-core chip, an analog-to-digital converter and a general input/output interface; wherein:

the dual-core chip is connected with the analog-to-digital converter through a general analog quantity acquisition interface and provides the general input and output interface;

the analog-to-digital converter is used for being connected with an analog quantity acquisition interface component of the converter, and the analog quantity acquisition interface component is used for converting the levels of different analog quantity signals into levels adaptive to the general analog quantity acquisition interface;

the universal input/output interface is used for being connected with a power interface component of the converter, and the universal input/output interface is used for receiving control signals provided by the power interface component and used for switching and acquiring different analog quantity signals.

2. The converter controller according to claim 1, wherein the dual core chip, the analog-to-digital converter, and the universal input/output interface are integrated on a single circuit board.

3. The converter controller according to claim 2, wherein the two cores of the dual core chip are a processing system and a programmable logic gate array, respectively.

4. The converter controller according to claim 3, wherein a fiber interface and/or a low voltage differential signaling expansion interface connected to the processing system are further integrated on the single circuit board.

5. The converter controller according to claim 3, wherein said monolithic circuit board further comprises integrated network ports and/or readable storage media connected to said array of programmable logic gates.

6. The converter controller of claim 3, wherein said analog to digital converter and said general purpose input output interface are connected to said array of programmable logic gates; or/and the light source is arranged in the light path,

the input impedance of the analog-to-digital converter is configured to be higher than a preset threshold.

7. The converter controller of claim 1, wherein the universal input output interface is further configured to send a fault signal to the power interface component.

8. The converter controller according to claim 1, wherein the dual core chip is a ZynQ chip.

9. A converter, characterized in that it comprises a converter controller according to any of claims 1-8.

10. A wind park comprising a converter according to claim 9.