CN210005980U - valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains - Google Patents

valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains Download PDF

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Publication number
CN210005980U
CN210005980U CN201920880183.9U CN201920880183U CN210005980U CN 210005980 U CN210005980 U CN 210005980U CN 201920880183 U CN201920880183 U CN 201920880183U CN 210005980 U CN210005980 U CN 210005980U
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plug
pulse conversion
ins
optical port
pulse
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CN201920880183.9U
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胡云
郭琦
罗超
李书勇
黄立滨
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China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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China Southern Power Grid Co Ltd
Research Institute of Southern Power Grid Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/10Flexible AC transmission systems [FACTS]

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Abstract

The application discloses valve control interface case structures capable of expanding series stages of STATCOM converter chains, which comprise case bodies, pulse conversion plug-ins, expansion plug-ins and power supply plug-ins, wherein the pulse conversion plug-ins are located in the case bodies and used for being connected with a STATCOM controller and power units, transmitting and receiving optical ports are formed in the pulse conversion plug-ins, the expansion plug-ins are connected with the pulse conversion plug-ins and used for collecting pulse signals of the pulse conversion plug-ins, the power supply plug-ins are located in the case bodies and used for supplying power to the pulse conversion plug-ins and the expansion plug-ins, the pulse conversion plug-ins with the transmitting and receiving optical ports are arranged in the case structures and connected with the STATCOM controller and the power units, the power unit stages, namely the converter chain series stages, correspond to the power units of the transmitting and receiving optical ports, the STATCOM controller outputs the pulse signals, the expansion plug-ins collect the pulse signals of the pulse conversion plug.

Description

valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains
Technical Field
The application relates to the technical field of power electronics, in particular to an valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains.
Background
Static synchronous compensator (STATCOM) is advanced dynamic reactive power compensation equipment, has been applied to actual power system more and more extensively, provides powerful reactive power support to the recovery after the short circuit fault of system, and it not only can improve the stability of transmission system, can also restrain the grid harmonic oscillation, improves the electric energy quality.
With the development of power electronic technology, particularly the appearance of an insulated gate bipolar transistor and the improvement of control technology, the number of the stages of the STATCOM converter chain is more and more, but the existing STATCOM converter chain serial stage valve control interface chassis connected with the STATCOM controller cannot meet the requirements of more and more converter chain stages, and the STATCOM converter chain serial stage valve control interface chassis is not flexible enough for the change of the converter chain stages.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide valve-controlled interface cabinet structures capable of meeting the requirement of changing the number of converter chain stages.
SUMMERY OF THE UTILITY MODEL
The application aims to provide valve control interface cabinet structures capable of expanding series stages of STATCOM converter chains, so that the requirement that the number of the stages of the converter chains is more and more is met, and the flexibility of the valve control interface cabinet structures is improved.
In order to solve the above technical problem, the present application provides kinds of valve-controlled interface cabinet structures capable of expanding the serial stages of STATCOM converter chains, including:
a case body;
the pulse conversion plug-in is positioned in the case body and used for connecting the STATCOM controller and the power unit, and a transmitting-receiving optical port is formed in the pulse conversion plug-in;
the expansion plug-in is positioned in the case body and connected with the pulse conversion plug-in and is used for collecting pulse signals of the pulse conversion plug-in;
and the power supply plug-in unit is positioned in the case body and used for providing power for the pulse conversion plug-in unit and the expansion plug-in unit.
Optionally, the number of the pulse conversion inserts is 9.
Optionally, each pulse conversion plug-in unit is provided with 9 pairs of transceiving optical ports.
Optionally, the transceiver optical port is an HFBR4506 transceiver optical port.
Optionally, the method further includes:
and the dialing aid is positioned at the top end and the bottom end of the pulse conversion plug-in, the expansion plug-in and the power plug-in.
Optionally, the extension plug-in includes 4 LED signal lamps, 4 pairs of high-speed light receiving and transmitting ports, and 4 pairs of low-speed light receiving and transmitting ports.
Optionally, the low-speed transceiver optical port is an ST interface type transceiver optical port.
Optionally, the high-speed transceiver optical port is an LC interface type transceiver optical port.
The valve control interface cabinet structure comprises a cabinet body, a pulse conversion plug-in unit, an expansion plug-in unit and a power supply plug-in unit, wherein the pulse conversion plug-in unit is located in the cabinet body and used for being connected with a STATCOM controller and a power unit, a transmitting and receiving optical port is formed in the pulse conversion plug-in unit, the expansion plug-in unit is located in the cabinet body and connected with the pulse conversion plug-in unit and used for collecting pulse signals of the pulse conversion plug-in unit, the power supply plug-in unit is located in the cabinet body and used for providing power for the pulse conversion plug-in unit and the expansion plug-in unit, the pulse conversion plug-in unit in the valve control interface cabinet structure is connected with the STATCOM controller and the power unit, and the transmitting and receiving optical port is a converter chain series, corresponds to the transmitting and receiving optical ports to power units, the STATCOM controller outputs pulse signals, and the expansion plug-in unit collects pulse signals of the pulse conversion plug-in the valve control interface cabinet structure.
Drawings
For a clear explanation of the embodiments of the present application or the technical solutions of the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic plan structure diagram of an valve-controlled interface cabinet structure capable of expanding serial stages of STATCOM converter chains according to an embodiment of the present application;
fig. 2 is a schematic plan view of another kinds of valve controlled interface cabinet structures capable of expanding serial stages of STATCOM converter chains according to an embodiment of the present application.
Detailed Description
For a better understanding of the present disclosure by those skilled in the art, reference is made to the following detailed description of the present disclosure, taken in conjunction with the accompanying drawings and the accompanying detailed description, which is . it is apparent that the illustrated embodiments are only a partial, rather than a complete, example of the present disclosure . based on the examples provided herein, all other embodiments, which can be derived by one of ordinary skill in the art without making creative efforts, fall within the scope of the present disclosure.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be embodied in other specific forms other than those described herein, and one skilled in the art may similarly push without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As described in the background section, the existing valve-regulated chassis cannot meet the requirement of more and more converter chain stages, and the STATCOM converter chain series stage valve-regulated interface chassis structure is not flexible enough for the change of the converter chain stages.
In view of this, the present application provides kinds of valve-controlled interface chassis structures capable of expanding STATCOM converter chain series stages, that is, kinds of valve-controlled interface chassis, please refer to fig. 1, where fig. 1 is a schematic plan structure diagram of a kinds of valve-controlled interface chassis structures capable of expanding STATCOM converter chain series stages provided in this application, where the valve-controlled interface chassis structure includes:
a case body 1;
the pulse conversion plug-in 2 is positioned in the chassis box body 1 and is used for connecting the STATCOM controller and the power unit, and a transmitting-receiving optical port 21 is arranged on the pulse conversion plug-in 2;
the expansion plug-in 3 is positioned in the case body 1 and connected with the pulse conversion plug-in 2 and is used for collecting pulse signals of the pulse conversion plug-in 2;
and the power supply plug-in 4 is positioned in the case body 1 and is used for supplying power to the pulse conversion plug-in 2 and the expansion plug-in 3.
It can be understood that card slots corresponding to the pulse conversion card 2, the expansion card 3 and the power card 4 are arranged in the valve control interface cabinet structure.
Optionally, four circular holes 5 are respectively formed in two sides of the case body 1, and are used for installing and fixing the case body 1.
Specifically, the STATCOM controller can output a PWM (Pulse Width Modulation) Pulse signal, and the Pulse conversion card 2 connected to the STATCOM controller receives the PWM Pulse signal; the series stage number of the power unit is the series stage number of the STATCOM converter chain, and the pulse conversion plug-in 2 can be connected with all the power units, namely can be matched with all the STATCOM converter chain series stage numbers.
Specifically, the extension plug-in 3 is connected with the pulse conversion plug-in 2, and can collect all PWM pulse signals in the pulse conversion plug-in 2, and when a simulation test needs to be performed, the extension plug-in 3 is also used for communication and transmitting the PWM pulse signals.
It should be noted that, the valve controlled interface chassis structure in the present application adopts a domestic mainstream 4U chassis design, is convenient to install and small in floor area, and integrates the serial stages of all power units of the STATCOM three-phase valve group into chassis, which is influenced by the size of the valve controlled interface chassis structure, in this embodiment, the number of the expansion plug-ins 3 is , and similarly, the number of the power plug-ins 4 is , and power plug-ins 4 can meet the power supply of the pulse conversion plug-ins 2 and the expansion plug-ins 3.
Specifically, the power plug-in 4 includes 4 LED indicator lights, 1 ac power switch button, 1 ac 220V power input port, and 1 dc 110V power input port from top to bottom.
The number of power units depends on the number of the pulse conversion cards 2 and the number of the transmitting/receiving optical ports 21 provided in the pulse conversion cards 2, and 1 power unit corresponds to 1 transmitting/receiving optical port 21.
Preferably, in embodiments of the present application, the number of the pulse conversion cards 2 is 9, when the number of the transceiver optical ports 21 provided on the pulse conversion cards 2 is determined, the larger the number of the pulse conversion cards 2 is, the larger the number of the power units is, i.e. the larger the number of the cascade stages of the STATCOM converter chain that can be connected is.
Preferably, each pulse conversion card 2 is provided with 9 pairs of transceiving optical ports 21. 9 pairs of the transmitting and receiving optical ports 21 correspond to 9 power units, so that the valve control interface chassis structure in the present application can be connected with 81 power units at most, that is, can meet the requirement that the number of series stages of the converter chain is 81 at most.
Of course, when the number of the stages of the converter chain is smaller than 81, the number of the pulse conversion cards 2 and the number of the transceiver optical ports 21 can be reduced, and it should be noted that the number of the transceiver optical ports 21 is at least 3, and the number of the transceiver optical ports is set to be a multiple of 3.
The valve control interface case structure provided by the embodiment comprises a case body 1, a pulse conversion plug-in 2 located in the case body 1 and used for connecting a STATCOM controller and a power unit, wherein a transmitting and receiving optical port 21 is formed in the pulse conversion plug-in 2, an expansion plug-in 3 located in the case body 1 and connected with the pulse conversion plug-in 2 and used for collecting pulse signals of the pulse conversion plug-in 2, and a power plug-in 4 located in the case body 1 and used for providing power for the pulse conversion plug-in 2 and the expansion plug-in 3.
Optionally, on the basis of the above embodiments, in embodiments of the present application, the transceiver optical port 21 is an HFBR4506 transceiver optical port, but the present application is not specifically limited thereto, and in other embodiments of the present application, the transceiver optical port 21 may also be an HFBR1531 transceiver optical port, or a ZHFBR1528Z transceiver optical port, or other types of transceiver optical ports, so as to meet different requirements of the valve-controlled interface chassis structure in the actual use process, where may access an optical fiber with a wavelength of 650nm to the HFBR4506 transceiver optical port, and the communication distance may be as far as 50 meters.
Referring to fig. 2, fig. 2 is a schematic plan view of another kinds of scalable STATCOM converter chain series stage valve controlled interface cabinet structures provided in this embodiment of the present application.
On the basis of any embodiments described above, in embodiments of the present application, the valve control interface chassis structure further includes:
and the dialing aid 6 is positioned at the top end and the bottom end of the pulse conversion plug-in unit 2, the expansion plug-in unit 3 and the power plug-in unit 4.
dialing aids 6 are respectively arranged at the top end and the bottom end of each of the pulse conversion plug-in 2, the expansion plug-in 3 and the power plug-in 4, so that a user can conveniently and quickly detach and replace the pulse conversion plug-in 2, the expansion plug-in 3 and the power plug-in 4, and the plug-in is prevented from being damaged in the plug-in removal process.
Preferably, in embodiments of the present application, the extension plug-in 3 includes 4 LED signal lamps, 4 pairs of high-speed light receiving and emitting ports and 4 pairs of low-speed light receiving and emitting ports, so as to visually display the operation status of the extension plug-in 3, thereby enabling the user to more intuitively know the operation status of the extension plug-in 3.
Specifically, the high-speed transmitting/receiving optical port includes an SFP (Small Form-factor plug) interface device.
Optionally, the low-speed transceiver optical port is an ST interface type transceiver optical port, which may use a wavelength of 850nm, and a communication distance may be as far as 2200 meters, but this application is not specifically limited thereto, and in other embodiments of the application, the ST low-speed transceiver optical port may also be an lc (lucent connector) interface type transceiver optical port, or an fc (ferro connector) interface type transceiver optical port, or an sc (smart card) interface type transceiver optical port.
Preferably, in embodiments of the present application, the high-speed transceiving optical port is an LC interface type transceiving optical port, the transmission speed of which is up to 4Gbps, 850nm wavelength can be used, and the communication distance can be up to 70 meters at the maximum.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The valve-controlled interface cabinet structure capable of expanding the series stages of the STATCOM converter chains provided by the application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (8)

1, a valve control interface cabinet structure capable of expanding STATCOM converter chain series stages, which is characterized by comprising:
a case body;
the pulse conversion plug-in is positioned in the case body and used for connecting the STATCOM controller and the power unit, and a transmitting-receiving optical port is formed in the pulse conversion plug-in;
the expansion plug-in is positioned in the case body and connected with the pulse conversion plug-in and is used for collecting pulse signals of the pulse conversion plug-in;
and the power supply plug-in unit is positioned in the case body and used for providing power for the pulse conversion plug-in unit and the expansion plug-in unit.
2. The valvetrain interface chassis structure of claim 1, wherein the number of pulse conversion cards is 9.
3. The valvetrain interface chassis structure of claim 2, wherein each pulse conversion card is configured with 9 pairs of transmit and receive optical ports.
4. The valvetrain interface chassis structure of claim 3, wherein the transceiver optical port is an HFBR4506 transceiver optical port.
5. The valved interface cabinet structure of any of , of claims 1-4, further comprising:
and the dialing aid is positioned at the top end and the bottom end of the pulse conversion plug-in, the expansion plug-in and the power plug-in.
6. The valvetrain interface chassis structure of claim 5, wherein the expansion plug comprises 4 LED signal lamps, 4 pairs of high speed transceiver ports and 4 pairs of low speed transceiver ports.
7. The valved interface enclosure structure of claim 6, wherein said low-speed transceiver optical port is an ST interface type transceiver optical port.
8. The valvetrain interface chassis structure of claim 7, wherein the high-speed transceiver optical port is an LC interface type transceiver optical port.
CN201920880183.9U 2019-06-12 2019-06-12 valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains Active CN210005980U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920880183.9U CN210005980U (en) 2019-06-12 2019-06-12 valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920880183.9U CN210005980U (en) 2019-06-12 2019-06-12 valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains

Publications (1)

Publication Number Publication Date
CN210005980U true CN210005980U (en) 2020-01-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920880183.9U Active CN210005980U (en) 2019-06-12 2019-06-12 valve control interface cabinet structure capable of expanding series stages of STATCOM converter chains

Country Status (1)

Country Link
CN (1) CN210005980U (en)

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