CN111404159A - AC-DC hybrid wiring device and AC-DC hybrid main substation - Google Patents

AC-DC hybrid wiring device and AC-DC hybrid main substation Download PDF

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Publication number
CN111404159A
CN111404159A CN202010319608.6A CN202010319608A CN111404159A CN 111404159 A CN111404159 A CN 111404159A CN 202010319608 A CN202010319608 A CN 202010319608A CN 111404159 A CN111404159 A CN 111404159A
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module
voltage
bus
current
output end
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谢红
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Wuhan Polytechnic University
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Wuhan Polytechnic University
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    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • 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

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  • Direct Current Feeding And Distribution (AREA)

Abstract

The invention relates to the technical field of railway engineering and discloses an alternating current and direct current hybrid wiring device and an alternating current and direct current hybrid main substation. The alternating current-direct current hybrid wiring device comprises an incoming line voltage reduction module, a bus module, a voltage transformation compensation module, a rectification module, a first bus feeder line module and a second bus feeder line module; the incoming line voltage reduction module receives electric energy of a power supply, converts the electric energy into first voltage, reduces the first voltage into second voltage and transmits the second voltage to the bus module; the bus module transmits the second voltage to the voltage transformation compensation module and the rectification module; the voltage transformation compensation module transforms the second voltage into alternating voltage and transmits the alternating voltage to the first bus feeder line module; the rectifying module rectifies the second voltage into direct-current voltage and transmits the direct-current voltage to the second bus feeder line module. The power supply is converted into the second voltage after being subjected to voltage reduction, the second voltage is rectified to supply power to all direct current electric equipment, or the alternating voltage is transformed to supply power to all alternating current electric equipment, and the problem that the existing main transformer cannot supply power to direct current and alternating current power supply systems at the same time is solved.

Description

AC-DC hybrid wiring device and AC-DC hybrid main substation
Technical Field
The invention relates to the technical field of railway engineering, in particular to an alternating current and direct current hybrid wiring device and an alternating current and direct current hybrid main substation.
Background
The national development and improvement committee's guidance opinions on the development of modern urban districts' clearly indicates that the urban district rail transit network layout is considered overall, and the conditional region promotes the four-network integration of the main rail, the intercity rail, the urban district rail and the urban rail transit, and the four-network integration provides new challenges for rail transit traction power supply.
The main railways, inter-city railways and urban railways generally adopt a single-phase power frequency alternating current 25kV power supply system, and a 110/27.5kV traction substation reduces the voltage and then supplies power to a contact network. The urban rail transit generally adopts a direct current DC1500V power supply system, after the voltage is reduced by a 110/35kV main substation, the voltage is converted into DC1500V by a 35kV rectifier unit to supply power to a contact network, and a 110/27.5kV traction substation for supplying power to the contact network in an alternating current system and a 110/35kV main substation for supplying power in a direct current system are required to be arranged at the same position at a transfer place of a main railway, an intercity railway, a city railway and the urban rail transit and a part of short-distance city railways adopting multiple power supply systems, so that the great waste of engineering one-time investment and land resources is caused.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an alternating current and direct current hybrid wiring device and an alternating current and direct current hybrid main substation, and aims to solve the technical problem that the existing main substation cannot supply power to direct current supply systems and alternating current supply systems contact networks at the same time.
In order to achieve the purpose, the invention provides an alternating current-direct current hybrid wiring device, which comprises an incoming line voltage reduction module, a bus module, a voltage transformation compensation module, a rectification module, a first bus feeder line module and a second bus feeder line module;
the input end of the incoming line voltage reduction module is connected with a power supply, the output end of the incoming line voltage reduction module is connected with the input end of the bus module, the output end of the bus module is connected with the input end of the voltage transformation compensation module, the output end of the voltage transformation compensation module is connected with the first bus feeder line module, the output end of the bus module is connected with the input end of the rectification module, and the output end of the rectification module is connected with the second bus feeder line module; wherein the content of the first and second substances,
the incoming line voltage reduction module is used for receiving the electric energy of the power supply and converting the electric energy of the power supply into a first voltage;
the incoming line voltage reduction module is further used for reducing the first voltage into a second voltage and transmitting the second voltage to the bus module;
the bus module is used for receiving the second voltage and transmitting the second voltage to the transformation compensation module and the rectification module;
the voltage transformation compensation module is used for transforming the second voltage into alternating-current voltage and transmitting the alternating-current voltage to the first bus feeder line module so as to supply power to each alternating-current electric device;
and the rectifying module is used for rectifying the second voltage into direct-current voltage and transmitting the direct-current voltage to the second bus feeder line module so as to supply power to each direct-current electric device.
Preferably, the incoming line voltage reduction module comprises a first incoming line module and a first voltage reduction module;
the input end of the first incoming line module is connected with the power supply, the output end of the first incoming line module is connected with the input end of the first voltage reduction module, and the output end of the first voltage reduction module is connected with the input end of the bus module.
Preferably, the incoming line voltage reduction module further comprises a second incoming line module and a second voltage reduction module;
the input end of the second incoming line module is connected with the power supply, the output end of the second incoming line module is connected with the input end of the second voltage reduction module, and the output end of the second voltage reduction module is connected with the input end of the bus module.
Preferably, the voltage transformation compensation module comprises a first voltage transformation compensation module and a second voltage transformation compensation module;
the input end of the first voltage transformation compensation module is connected with the output end of the bus module, the output end of the first voltage transformation compensation module is connected with the input end of the first bus feeder line module, the input end of the second voltage transformation compensation module is connected with the output end of the bus module, and the output end of the second voltage transformation compensation module is connected with the input end of the first bus feeder line module.
Preferably, the voltage transformation compensation module further comprises a voltage compensation module;
the input end of the voltage compensation module is connected with the output end of the first voltage transformation compensation module, and the output end of the voltage compensation module is connected with the input end of the first bus feeder line module.
Preferably, the rectifier module comprises a first rectifier module and a second rectifier module, and the first rectifier module and the second rectifier module operate in parallel;
the input end of the first rectifying module is connected with the output end of the bus module, the output end of the first rectifying module is connected with the input end of the second bus feeder line module, the input end of the second rectifying module is connected with the output end of the bus module, and the output end of the second rectifying module is connected with the input end of the second bus feeder line module.
Preferably, the first bus feeder module comprises a plurality of gas-insulated combined alternating-current switch cabinets;
the input ends of the gas-insulated combined alternating-current switch cabinets are connected with the output end of the voltage transformation compensation module, and the output ends of the gas-insulated combined alternating-current switch cabinets are respectively connected with the alternating-current electric equipment.
Preferably, the second bus feeder module comprises a plurality of gas-insulated combined direct-current switch cabinets;
the input ends of the gas-insulated combined direct-current switch cabinets are connected with the output end of the rectification module, and the output ends of the gas-insulated combined direct-current switch cabinets are respectively connected with the direct-current electric equipment.
Preferably, the gas-insulated combined alternating-current switch cabinets comprise alternating-current circuit breakers, alternating-current isolating switches, voltage transformers and current transformers; the gas-insulated combined direct-current switch cabinet comprises a direct-current breaker and a direct-current isolating switch.
In order to achieve the above object, the present invention further provides an ac/dc hybrid main substation, which includes the ac/dc hybrid junction device as described above.
The technical scheme of the invention provides an alternating current and direct current hybrid wiring device which comprises an incoming line voltage reduction module, a bus module, a voltage transformation compensation module, a rectification module, a first bus feeder line module and a second bus feeder line module; the input end of the incoming line voltage reduction module is connected with a power supply, the output end of the incoming line voltage reduction module is connected with the input end of the bus module, the output end of the bus module is connected with the input end of the voltage transformation compensation module, the output end of the voltage transformation compensation module is connected with the first bus feeder line module, the output end of the bus module is connected with the input end of the rectification module, and the output end of the rectification module is connected with the second bus feeder line module; the incoming line voltage reduction module is used for receiving electric energy of the power supply and converting the electric energy of the power supply into a first voltage; the incoming line voltage reduction module is further used for reducing the first voltage into a second voltage and transmitting the second voltage to the bus module; the bus module is used for receiving the second voltage and transmitting the second voltage to the transformation compensation module and the rectification module; the voltage transformation compensation module is used for transforming the second voltage into alternating-current voltage and transmitting the alternating-current voltage to the first bus feeder line module so as to supply power to each alternating-current electric device; and the rectifying module is used for rectifying the second voltage into direct-current voltage and transmitting the direct-current voltage to the second bus feeder line module so as to supply power to each direct-current electric device. By the mode, the power supply is reduced in voltage and converted into the second voltage, the second voltage can supply power for the rectifier unit, the power is supplied to each direct-current electric equipment after rectification, the second voltage can be transformed into the alternating-current voltage to directly supply power to each alternating-current electric equipment, the fact that the alternating-current and direct-current hybrid wiring device supplies power to the direct-current power supply system and the alternating-current power supply system contact network at the same time is achieved, one-time investment of engineering is saved, precious land resources are saved, and the technical problem that an existing main transformer station cannot supply power to the direct-current power supply system and the alternating-current power supply system contact network at the.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of an embodiment of the hybrid AC/DC wiring device of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the ac/dc hybrid junction device of the present invention.
The reference numbers illustrate:
Figure BDA0002460184060000041
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
The invention provides an alternating current and direct current hybrid wiring device.
Referring to fig. 1, fig. 1 is a functional block diagram of an embodiment of an ac/dc hybrid junction device according to the present invention, in the embodiment of the present invention, the ac/dc hybrid junction device includes an incoming line voltage step-down module 100, a bus module 200, a transformation compensation module 300, a rectification module 400, a first bus feeder module 500, and a second bus feeder module 600;
the input end of the incoming line voltage-reducing module 100 is connected to a power supply, the output end of the incoming line voltage-reducing module 100 is connected to the input end of the bus module 200, the output end of the bus module 200 is connected to the input end of the voltage transformation compensation module 300, the output end of the voltage transformation compensation module 300 is connected to the first bus feeder line module 500, the output end of the bus module 200 is connected to the input end of the rectifying module 400, and the output end of the rectifying module 400 is connected to the second bus feeder line module 600; wherein the content of the first and second substances,
the incoming line voltage reduction module 100 is configured to receive electric energy of the power supply and convert the electric energy of the power supply into a first voltage.
The incoming line voltage reduction module 100 is further configured to reduce the first voltage into a second voltage and transmit the second voltage to the bus module 200. In this embodiment, the power supply may be a 110kV incoming line power supply, the incoming line voltage-reducing module 100 may include a first incoming line module and a first voltage-reducing module, the incoming line voltage-reducing module 100 adopts a dual-loop redundancy configuration, and adopts a main loop and a standby loop to operate, and when one of the loops fails, it is switched to another loop to operate, the first incoming line module and the first voltage-reducing module may be main loops, and the second incoming line module and the second voltage-reducing module may be standby loops.
Specifically, the input end of the first incoming line module is connected to the power supply, the output end of the first incoming line module is connected to the input end of the first voltage reduction module, and the output end of the first voltage reduction module is connected to the input end of the bus module 200. The incoming line voltage reduction module 100 further comprises a second incoming line module and a second voltage reduction module; the input end of the second incoming line module is connected with the power supply, the output end of the second incoming line module is connected with the input end of the second voltage reduction module, and the output end of the second voltage reduction module is connected with the input end of the bus module 200.
The bus module 200 is configured to receive the second voltage and transmit the second voltage to the voltage transformation compensation module 300 and the rectification module 400. In this embodiment, the bus bar module 200 may be a 35kV bus bar module.
The voltage transformation compensation module 300 is configured to transform the second voltage into an ac voltage, and transmit the ac voltage to the first bus feeder module 500, so as to supply power to each ac electrical device. In this embodiment, the voltage transformation compensation module 300 adopts dual redundancy arrangements, one main module and one standby module, and the standby module is in a hot standby state and is switched to another module when one module fails. The transformer compensation module 300 may include a first transformer compensation module and a second transformer compensation module; the first voltage transformation compensation module can be a main module, the second voltage transformation compensation module can be a standby module, and the standby module is in a hot standby state.
Specifically, the input end of the first voltage transformation compensation module 300 is connected to the output end of the bus module 200, the output end of the first voltage transformation compensation module 300 is connected to the input end of the first bus feeder module 500, the input end of the second voltage transformation compensation module 300 is connected to the output end of the bus module 200, and the output end of the second voltage transformation compensation module 300 is connected to the input end of the first bus feeder module 500.
The rectifying module 400 is configured to rectify the second voltage into a dc voltage, and transmit the dc voltage to the second bus feeder module 600 to supply power to each dc power device. In this embodiment, the rectifier module 400 may include a first rectifier module and a second rectifier module, where the first rectifier module and the second rectifier module operate in parallel, and the rectifier module 400 operates in parallel by using two sets of rectifier modules, and is used to reduce harmonic content in the ac/dc hybrid junction device.
Specifically, an input end of the first rectifying module is connected to an output end of the bus module 200, an output end of the first rectifying module is connected to an input end of the second bus feeder module 600, an input end of the second rectifying module is connected to an output end of the bus module 200, and an output end of the second rectifying module is connected to an input end of the second bus feeder module 600.
The embodiment provides an ac/dc hybrid junction device, which includes an incoming line voltage-reducing module 100, a bus module 200, a voltage transformation compensation module 300, a rectification module 400, a first bus feeder module 500, and a second bus feeder module 600; the input end of the incoming line voltage-reducing module 100 is connected to a power supply, the output end of the incoming line voltage-reducing module 100 is connected to the input end of the bus module 200, the output end of the bus module 200 is connected to the input end of the voltage transformation compensation module 300, the output end of the voltage transformation compensation module 300 is connected to the first bus feeder line module 500, the output end of the bus module 200 is connected to the input end of the rectifying module 400, and the output end of the rectifying module 400 is connected to the second bus feeder line module 600; the incoming line voltage reduction module 100 is configured to receive electric energy of the power supply and convert the electric energy of the power supply into a first voltage; the incoming line voltage reduction module 100 is further configured to reduce the first voltage into a second voltage and transmit the second voltage to the bus module 200; the bus module 200 is configured to receive the second voltage and transmit the second voltage to the voltage transformation compensation module 300 and the rectification module 400; the voltage transformation compensation module 300 is configured to transform the second voltage into an ac voltage, and transmit the ac voltage to the first bus feeder module 500 to supply power to each ac electrical device; the rectifying module 400 is configured to rectify the second voltage into a dc voltage, and transmit the dc voltage to the second bus feeder module 600 to supply power to each dc power device. By the mode, the power supply is reduced in voltage and converted into the second voltage, the second voltage can supply power for the rectifier unit, the power is supplied to each direct-current electric equipment after rectification, the second voltage can be transformed into the alternating-current voltage to directly supply power to each alternating-current electric equipment, the fact that the alternating-current and direct-current hybrid wiring device supplies power to the direct-current power supply system and the alternating-current power supply system contact network at the same time is achieved, one-time investment of engineering is saved, precious land resources are saved, and the technical problem that an existing main transformer station cannot supply power to the direct-current power supply system and the alternating-current power supply system contact network at the.
Further, referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the ac/dc hybrid junction device of the present invention, where the incoming voltage reduction module 100 includes a first incoming line module 101 and a first voltage reduction module 102;
the input end of the first incoming line module 101 is connected to the power supply, the output end of the first incoming line module 101 is connected to the input end of the first voltage reduction module 102, and the output end of the first voltage reduction module 102 is connected to the input end of the bus module 200.
It should be noted that incoming line voltage reduction module 100 with the power is connected, the power can be 110kV incoming line power, first incoming line module 101 can include 110kV circuit breaker, 110kV isolator, 110kV voltage transformer, 110kV current transformer, first voltage reduction module 102 can include 110/35kV three-phase transformer, 35kV circuit breaker, 35kV isolator, 35kV voltage transformer, 35kV current transformer.
Further, referring to fig. 2, the incoming line voltage reduction module 100 further includes a second incoming line module 103 and a second voltage reduction module 104;
the input end of the second incoming line module 103 is connected to the power supply, the output end of the second incoming line module 103 is connected to the input end of the second voltage reduction module 104, and the output end of the second voltage reduction module 104 is connected to the input end of the bus module 200.
It should be noted that the second incoming line module 103 may include a 110kV circuit breaker, a 110kV disconnector, a 110kV voltage transformer, and a 110kV current transformer, and the second voltage reducing module 104 may include an 110/35kV three-phase transformer, a 35kV circuit breaker, a 35kV disconnector, a 35kV voltage transformer, and a 35kV current transformer.
Further, referring to fig. 2, the transformer compensation module 300 includes a first transformer compensation module 301 and a second transformer compensation module 302;
the input end of the first voltage transformation compensation module 301 is connected to the output end of the bus module 200, the output end of the first voltage transformation compensation module 301 is connected to the input end of the first bus feeder module 500, the input end of the second voltage transformation compensation module 302 is connected to the output end of the bus module 200, and the output end of the second voltage transformation compensation module 302 is connected to the input end of the first bus feeder module 500.
It should be noted that the first transformation compensation module 301 may include a 35/27.5KV three-phase transformer, a 27.5KV circuit breaker, a 27.5KV disconnecting switch, a 27.5KV voltage transformer, and a 27.5KV current transformer. The second transformation compensation module 302 may include a 35/27.5KV three-phase transformer, a 27.5KV circuit breaker, a 27.5KV disconnecting switch, a 27.5KV voltage transformer, and a 27.5KV current transformer.
Further, referring to fig. 2, the transformer compensation module 300 further includes a voltage compensation module 303;
the input end of the voltage compensation module 303 is connected to the output end of the first voltage transformation compensation module 301, and the output end of the voltage compensation module 303 is connected to the input end of the first bus feeder module 500.
It should be noted that the voltage compensation module 303 may be a 27.5KV voltage unbalance compensation device, and the 27.5KV voltage unbalance compensation device performs voltage compensation to compensate for three-phase unbalance caused by three-phase-single-phase change.
Further, referring to fig. 2, the rectification module 400 includes a first rectification module 401 and a second rectification module 402, and the first rectification module 401 and the second rectification module 401 operate in parallel;
the input end of the first rectifying module 401 is connected to the output end of the bus bar module 200, the output end of the first rectifying module 401 is connected to the input end of the second bus bar feeder line module 600, the input end of the second rectifying module 402 is connected to the output end of the bus bar module 200, and the output end of the second rectifying module 402 is connected to the input end of the second bus bar feeder line module 600.
It should be noted that the input end of the rectifier module 400 is connected to the bus module 200, and the output end of the rectifier module 400 is connected to a 35kV rectifier set, so as to provide an incoming line power supply for the rectifier set, and after being rectified by the rectifier module 400, the DC1500V voltage can be provided through the second bus feeder module 600.
Specifically, the first rectification module 401 may include a 35kV circuit breaker, a 35kV disconnector, a 35kV voltage transformer, a 35kV current transformer, an AC35kV/DC1500V rectifier transformer, a DC1500V rectifier, a DC1500V circuit breaker, a DC1500V disconnector. The second rectification module 402 may include a 35kV circuit breaker, a 35kV disconnector, a 35kV voltage transformer, a 35kV current transformer, an AC35kV/DC1500V rectifier transformer, a DC1500V rectifier, a DC1500V circuit breaker, a DC1500V disconnector. In order to reduce the harmonic content in the ac/dc hybrid junction device, the first rectification module 401 and the second rectification module 401 are connected in parallel.
Further, the first bus feeder module 500 includes a plurality of gas insulated combined ac switch cabinets 501;
the input ends of the gas-insulated combined ac switch cabinets 501 are connected to the output end of the voltage transformation compensation module 300, and the output ends of the gas-insulated combined ac switch cabinets 501 are connected to the ac electric devices, respectively.
It should be noted that the first bus feeder module 500 is a 27.5kV bus feeder module, the gas-insulated combined ac switchgear 501 may be a 27.5 kvis switchgear, and the first bus feeder module 500 may include a plurality of gas-insulated combined ac switchgear 501, that is, the number of loops of the first bus feeder module 500 may be determined according to actual specific engineering requirements. The output ends of the gas-insulated combined ac switch cabinets 501 are respectively connected to the ac power consumers, that is, the first bus feeder module 500 can supply power to an ac contact network.
Further, the second bus feeder module 600 includes a plurality of gas-insulated combined dc switch cabinets 601;
the input ends of the gas-insulated combined direct-current switch cabinets 601 are connected with the output end of the rectifier module 400, and the output ends of the gas-insulated combined direct-current switch cabinets 601 are respectively connected with the direct-current electric equipment.
It should be noted that, the second bus feeder module 600 is a DC1500V bus feeder module, the gas-insulated combined DC switchgear 601 may be a DC1500VGIS switchgear, and the second bus feeder module 600 may include a plurality of gas-insulated combined DC switchgear 601, that is, the number of loops of the second bus feeder module 600 may be determined according to actual specific engineering requirements. The output ends of the gas-insulated combined DC switch cabinets 601 are respectively connected to the DC consumers, that is, the second bus feeder module 600 may supply power to a DC1500V DC contact network.
Further, the gas-insulated combined ac switchgear 501 includes an ac circuit breaker, an ac isolating switch, a voltage transformer, and a current transformer; the gas-insulated combined direct-current switch cabinet comprises a direct-current breaker and a direct-current isolating switch.
It should be noted that the gas-insulated combined ac switch cabinets 501 may be 27.5kVGIS switch cabinets, the GIS switch cabinet is a gas-insulated combined switch cabinet, and the 27.5kVGIS switch cabinet includes a 27.5kV circuit breaker, a 27.5kV disconnecting switch, a 27.5kV voltage transformer, and a 27.5kV current transformer. The gas-insulated combined direct-current switch cabinet 601 can be a DC1500VGIS switch cabinet, the GIS switch cabinet is a gas-insulated combined switch cabinet, and the DC1500VGIS switch cabinet comprises a DC1500V circuit breaker and a DC1500V isolating switch.
In order to achieve the above object, the present invention further provides an ac/dc hybrid main substation, which includes the ac/dc hybrid junction device as described above. The specific structure of the ac/dc hybrid junction device refers to the above embodiments, and since all technical solutions of all the above embodiments are adopted in the ac/dc hybrid main power transformer, all beneficial effects brought by the technical solutions of the above embodiments are at least achieved, and are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The alternating current-direct current hybrid wiring device is characterized by comprising an incoming line voltage reduction module, a bus module, a voltage transformation compensation module, a rectification module, a first bus feeder line module and a second bus feeder line module;
the input end of the incoming line voltage reduction module is connected with a power supply, the output end of the incoming line voltage reduction module is connected with the input end of the bus module, the output end of the bus module is connected with the input end of the voltage transformation compensation module, the output end of the voltage transformation compensation module is connected with the first bus feeder line module, the output end of the bus module is connected with the input end of the rectification module, and the output end of the rectification module is connected with the second bus feeder line module; wherein the content of the first and second substances,
the incoming line voltage reduction module is used for receiving the electric energy of the power supply and converting the electric energy of the power supply into a first voltage;
the incoming line voltage reduction module is further used for reducing the first voltage into a second voltage and transmitting the second voltage to the bus module;
the bus module is used for receiving the second voltage and transmitting the second voltage to the transformation compensation module and the rectification module;
the voltage transformation compensation module is used for transforming the second voltage into alternating-current voltage and transmitting the alternating-current voltage to the first bus feeder line module so as to supply power to each alternating-current electric device;
and the rectifying module is used for rectifying the second voltage into direct-current voltage and transmitting the direct-current voltage to the second bus feeder line module so as to supply power to each direct-current electric device.
2. The hybrid ac-dc wiring device according to claim 1, wherein the incoming voltage reduction module comprises a first incoming module and a first voltage reduction module;
the input end of the first incoming line module is connected with the power supply, the output end of the first incoming line module is connected with the input end of the first voltage reduction module, and the output end of the first voltage reduction module is connected with the input end of the bus module.
3. The hybrid ac-dc wiring device according to claim 2, wherein the incoming voltage step-down module further comprises a second incoming module and a second voltage step-down module;
the input end of the second incoming line module is connected with the power supply, the output end of the second incoming line module is connected with the input end of the second voltage reduction module, and the output end of the second voltage reduction module is connected with the input end of the bus module.
4. The hybrid AC-DC wiring device according to claim 3, wherein the voltage transformation compensation module comprises a first voltage transformation compensation module and a second voltage transformation compensation module;
the input end of the first voltage transformation compensation module is connected with the output end of the bus module, the output end of the first voltage transformation compensation module is connected with the input end of the first bus feeder line module, the input end of the second voltage transformation compensation module is connected with the output end of the bus module, and the output end of the second voltage transformation compensation module is connected with the input end of the first bus feeder line module.
5. The hybrid ac-dc wiring device according to claim 4, wherein the voltage transformation compensation module further comprises a voltage compensation module;
the input end of the voltage compensation module is connected with the output end of the first voltage transformation compensation module, and the output end of the voltage compensation module is connected with the input end of the first bus feeder line module.
6. The hybrid ac-dc wiring device according to claim 1, wherein the rectifying module comprises a first rectifying module and a second rectifying module, the first rectifying module and the second rectifying module operating in parallel;
the input end of the first rectifying module is connected with the output end of the bus module, the output end of the first rectifying module is connected with the input end of the second bus feeder line module, the input end of the second rectifying module is connected with the output end of the bus module, and the output end of the second rectifying module is connected with the input end of the second bus feeder line module.
7. The hybrid ac-dc wiring device according to claim 1, wherein the first bus feeder module comprises a plurality of gas-insulated combined ac switchgear cabinets;
the input ends of the gas-insulated combined alternating-current switch cabinets are connected with the output end of the voltage transformation compensation module, and the output ends of the gas-insulated combined alternating-current switch cabinets are respectively connected with the alternating-current electric equipment.
8. The hybrid ac-dc wiring device of claim 7, wherein the second bus feeder module comprises a plurality of gas insulated modular dc switchgears;
the input ends of the gas-insulated combined direct-current switch cabinets are connected with the output end of the rectification module, and the output ends of the gas-insulated combined direct-current switch cabinets are respectively connected with the direct-current electric equipment.
9. The hybrid ac/dc wiring device according to claim 8, wherein said plurality of gas-insulated combined ac switchgear cabinets include an ac circuit breaker, an ac disconnector, a voltage transformer, a current transformer; the gas-insulated combined direct-current switch cabinet comprises a direct-current breaker and a direct-current isolating switch.
10. An alternating current-direct current hybrid main substation, characterized in that, the alternating current-direct current hybrid main substation includes according to any one of claims 1 ~ 9 the alternating current-direct current hybrid termination.
CN202010319608.6A 2020-04-21 2020-04-21 AC-DC hybrid wiring device and AC-DC hybrid main substation Pending CN111404159A (en)

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CN202010319608.6A CN111404159A (en) 2020-04-21 2020-04-21 AC-DC hybrid wiring device and AC-DC hybrid main substation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010319608.6A CN111404159A (en) 2020-04-21 2020-04-21 AC-DC hybrid wiring device and AC-DC hybrid main substation

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CN111404159A true CN111404159A (en) 2020-07-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010319608.6A Pending CN111404159A (en) 2020-04-21 2020-04-21 AC-DC hybrid wiring device and AC-DC hybrid main substation

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