CN219046428U - Multichannel switch matrix control device and charging and discharging system - Google Patents
Multichannel switch matrix control device and charging and discharging system Download PDFInfo
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- CN219046428U CN219046428U CN202223590921.7U CN202223590921U CN219046428U CN 219046428 U CN219046428 U CN 219046428U CN 202223590921 U CN202223590921 U CN 202223590921U CN 219046428 U CN219046428 U CN 219046428U
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Abstract
The application discloses multichannel switch matrix controlling means belongs to charge-discharge technical field, and the device includes the multichannel switch matrix that comprises logic control chip and a plurality of mutually independent switch control unit, and a plurality of mutually independent switch control unit are controlled by logic control chip, and every switch control unit all is used for controlling the access state between power conversion module and the input commercial power, all is provided with a plurality of alternating current relay in every switch control unit, and the on-state of every transmission line in other transmission lines except the ground wire in the input commercial power is controlled by corresponding alternating current relay respectively. The device can remarkably reduce the power consumption of the power conversion module in the charge-discharge system in no-load or standby. Correspondingly, the charging and discharging system provided by the application has the beneficial effects.
Description
Technical Field
The utility model relates to the technical field of charge and discharge, in particular to a multichannel switch matrix control device and a charge and discharge system.
Background
In the prior art, the power supply control is performed on the power conversion module through the alternating current contactor, so that the purpose of controlling the charge and discharge of the charge and discharge system is achieved. In the charge-discharge control system, all power conversion modules in the charge-discharge system are usually connected with a group of ac contactors, so that when the charge-discharge system is in an idle running state or does not reach a full power running state, all power conversion modules in the charge-discharge system can only be connected to an electric load through the ac contactors to perform charge-discharge operation on the electric load, and the power conversion modules in the idle state in the charge-discharge system cannot be individually disconnected. Obviously, the charge-discharge mode can greatly increase the power consumption required by the power conversion module in the charge-discharge system in idle or standby. Therefore, how to reduce the power consumption of the power conversion module in the charge-discharge system during no-load or standby is a technical problem to be solved at present.
Disclosure of Invention
In view of the above, the present utility model is directed to a multi-channel switch matrix control device and a charging/discharging system, so as to further reduce the power consumption of a power conversion module in the charging/discharging system during idle or standby. The specific scheme is as follows:
the multichannel switch matrix control device comprises a multichannel switch matrix formed by a logic control chip and a plurality of mutually independent switch control units, wherein the plurality of mutually independent switch control units are controlled by the logic control chip, each switch control unit is used for controlling the passage state between a power conversion module and input commercial power, a plurality of alternating current relays are arranged in each switch control unit, and the conduction state of each power transmission line in other power transmission lines except for a ground wire in the input commercial power is controlled by the corresponding alternating current relay.
Preferably, the power supply module is connected with the logic control chip and is used for supplying power to each alternating current relay in the logic control chip and the switch control unit.
Preferably, the logic control chip controls each switch control unit in a hard-wire connection manner.
Preferably, the multi-channel switch matrix is provided with a communication port.
Preferably, the communication port is: at least one of CAN port, RS485 port, RS232 port and LAN port.
Preferably, the logic control chip is an MCU.
Preferably, the input mains supply is three-phase four-wire system or three-phase five-wire system.
Preferably, the method further comprises:
and the EMC protection circuit is connected with the logic control chip and used for carrying out EMC protection on the multichannel switch matrix.
Preferably, the power conversion module is an AC/DC conversion module or a DC/AC conversion module or a plurality of parallel AC/DC conversion modules or a plurality of parallel DC/AC conversion modules or a bidirectional AC/DC conversion module or a plurality of parallel bidirectional AC/DC conversion modules.
Correspondingly, the utility model also discloses a charging and discharging system which comprises a charging control unit and a multichannel switch matrix control device disclosed in the specification, wherein the charging control unit controls the multichannel switch matrix control device.
Therefore, the multi-channel switch matrix control device provided by the utility model is provided with a multi-channel switch matrix formed by a logic control chip and a plurality of mutually independent switch control units; in the multi-channel switch matrix, a plurality of mutually independent switch control units are controlled by a logic control chip, and each switch control unit is used for controlling the state of a passage between the power conversion module and the input mains supply. Each switch control unit is provided with a plurality of alternating current relays, and the conducting state of each power transmission line in other power transmission lines except the ground wire in the input commercial power is controlled by the corresponding alternating current relay. Compared with the prior art, in the device, because the switch control units for controlling the power conversion modules are mutually independent, when an idle power conversion module exists in a charge-discharge system formed by the power conversion modules, the logic control chip in the multi-channel switch matrix can turn off the switch control unit corresponding to the idle power conversion module, thereby achieving the purpose of cutting off the idle power conversion module from the charge-discharge system, and further remarkably reducing the power consumption of the power conversion module in the charge-discharge system during idle or standby. Correspondingly, the charge and discharge system disclosed by the utility model has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of 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 utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a multi-channel switch matrix control device according to an embodiment of the present utility model;
FIG. 2 is a block diagram of another multi-channel switch matrix control device according to an embodiment of the present utility model;
fig. 3 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge and discharge system composed of N mutually independent AC/DC conversion modules;
fig. 4 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge and discharge system composed of N mutually independent DC/AC conversion modules;
fig. 5 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls N groups of charge and discharge systems composed of N AC/DC conversion modules connected in parallel with each other;
fig. 6 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls N groups of charge and discharge systems composed of N DC/AC conversion modules connected in parallel with each other;
fig. 7 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent AC/DC conversion modules;
fig. 8 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent DC/AC conversion modules;
fig. 9 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system formed by N groups of N AC/DC conversion modules connected in parallel with each other;
fig. 10 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent bidirectional AC/DC conversion modules;
fig. 11 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent bidirectional AC/DC conversion modules;
fig. 12 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge-discharge system formed by N groups of N bidirectional AC/DC conversion modules connected in parallel with each other;
fig. 13 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system formed by N groups of N bidirectional AC/DC conversion modules connected in parallel with each other;
fig. 14 is a schematic diagram of a multi-channel switch matrix control device according to an embodiment of the present utility model when communicating with a CCU of a charge-discharge system.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, fig. 1 is a block diagram of a multi-channel switch matrix control device provided by an embodiment of the present utility model, where the device includes a multi-channel switch matrix 13 formed by a logic control chip 11 and a plurality of mutually independent switch control units 12, the plurality of mutually independent switch control units 12 are controlled by the logic control chip 11, each switch control unit 12 is used for controlling a path state between a power conversion module and an input mains supply, a plurality of ac relays are disposed in each switch control unit 12, and a conduction state of each of other power transmission lines except for a ground line in the input mains supply is controlled by a corresponding ac relay.
In this embodiment, a multi-channel switch matrix control device is provided, by which the power consumption of a power conversion module in a charge-discharge system during idle or standby can be significantly reduced. In this device, a multi-channel switch matrix 13 is provided, which is formed by a logic control chip 11 and a plurality of mutually independent switch control units 12.
The plurality of mutually independent switch control units 12 are controlled by the logic control chip 11 in the multi-channel switch matrix 13, and each switch control unit 12 in the multi-channel switch matrix 13 is used for controlling the state of a channel between the power conversion module 14 and the input mains supply.
Specifically, a plurality of ac relays are provided in each of the switch control units 12, and the on state of each of the other power transmission lines except the ground line in the input commercial power is controlled by the corresponding ac relay, respectively. Then, when the input mains supply is three-phase four-wire mains supply, an ac relay is correspondingly connected to the a-phase, B-phase and C-phase power lines in the input mains supply, respectively, in which case 3 ac relays are provided in each switch control unit 12 in the multi-channel switch matrix 13; when the input mains supply is a three-phase five-wire system mains supply, the transmission lines of the a phase, the B phase, the C phase and the neutral line in the input mains supply are respectively and correspondingly connected with an ac relay, and in this case, 4 ac relays are arranged in each switch control unit 12 in the multi-channel switch matrix 13.
Referring to fig. 1, in fig. 1, the input mains is a three-phase four-wire system, wherein L1 (a), L1 (B), L1 (C) and PE represent an a-phase power line, a B-phase power line, a C-phase power line and a ground line, respectively, in the input mains. KA represents an alternating current relay connected with an A-phase power line in the switch control unit, KB represents an alternating current relay connected with a B-phase power line in the switch control unit, and KC represents an alternating current relay connected with a C-phase power line in the switch control unit.
It should be noted that, in the multi-channel switch matrix control device provided in this embodiment, the multi-channel switch matrix 13 may be used to perform a charging operation on the charging and discharging system formed by the power conversion modules 14, or the multi-channel switch matrix 13 may be used to perform a discharging operation on the charging and discharging system formed by the power conversion modules 14.
It will be appreciated that because the switch control units in the multi-channel switch matrix are independent of each other, each switch control unit can control the power conversion module and the input mains individually. Under the setting framework, when an idle power conversion module exists in a charge-discharge system formed by the power conversion modules, a logic control chip in a multi-channel switch matrix can be used for switching off a switch control unit corresponding to the idle power conversion module, so that the purpose of cutting off the idle power conversion module from the charge-discharge system is achieved, and therefore, the power consumption of the power conversion module in the charge-discharge system in idle or standby can be remarkably reduced through the setting mode.
In addition, because each switch control unit in the multichannel switch matrix is mutually independent, and each switch control unit can independently control the power conversion module and the input mains supply, the power transfer process of a charging and discharging system formed by a plurality of power conversion modules can be more flexible and the charging and discharging efficiency is higher through the arrangement framework.
It can be seen that, in the multi-channel switch matrix control device provided in this embodiment, a multi-channel switch matrix formed by a logic control chip and a plurality of mutually independent switch control units is provided; in the multi-channel switch matrix, a plurality of mutually independent switch control units are controlled by a logic control chip, and each switch control unit is used for controlling the state of a passage between the power conversion module and the input mains supply. Each switch control unit is provided with a plurality of alternating current relays, and the conducting state of each power transmission line in other power transmission lines except the ground wire in the input commercial power is controlled by the corresponding alternating current relay. Compared with the prior art, in the device, because the switch control units for controlling the power conversion modules are mutually independent, when an idle power conversion module exists in a charge-discharge system formed by the power conversion modules, the logic control chip in the multi-channel switch matrix can turn off the switch control unit corresponding to the idle power conversion module, thereby achieving the purpose of cutting off the idle power conversion module from the charge-discharge system, and further remarkably reducing the power consumption of the power conversion module in the charge-discharge system during idle or standby.
Based on the above embodiments, the technical solution is further described and optimized in this embodiment, please refer to fig. 2, and fig. 2 is a block diagram of another multi-channel switch matrix control device provided in the embodiment of the present utility model. As a preferred embodiment, the multi-channel switch matrix control device further includes a power supply module 15, where the power supply module 15 is connected to the logic control chip 11, and is used to supply power to each ac relay in the logic control chip 11 and the switch control unit.
In the present embodiment, a power supply module 15 connected to the logic control chip 11 is also provided in the multi-channel switch matrix 13, and each ac relay in the logic control chip 11 and the switch control unit 12 is provided with an energy source by using the power supply module 15. It is conceivable that when a separate power supply module 15 is used to power each ac relay in the logic control chip 11 and the switch control unit 12, normal and stable operation of each ac relay in the logic control chip 11 and the switch control unit 12 in the multi-channel switch matrix 13 can be ensured.
Obviously, by the technical scheme provided by the embodiment, the overall stability of the multi-channel switch matrix device in the operation process can be ensured.
Based on the above embodiment, the technical solution is further described and optimized in this embodiment, and as a preferred implementation, the logic control chip 11 controls each switch control unit 12 through a hard-wire connection manner.
It can be understood that, because the signal transmission process is simpler and more reliable than the transmission process of the software communication, in this embodiment, in order to improve the stability and reliability of the multi-channel switch matrix control device in the operation process, the logic control chip 11 controls each switch control unit 12 by hard-wire connection, that is, the logic control chip 11 controls the on state of each ac relay in the switch control unit 12 by hard-wire transmission.
Obviously, by the technical scheme provided by the embodiment, the reliability and stability of the logic control chip in the process of controlling the switch control unit can be further ensured.
Based on the above embodiments, the technical solution is further described and optimized in this embodiment, please refer to fig. 2, and fig. 2 is a block diagram of another multi-channel switch matrix control device provided in the embodiment of the present utility model. As a preferred embodiment, the multi-channel switch matrix 13 is provided with communication ports 16.
It can be appreciated that in many application scenarios, the multi-channel switch matrix control device provided in the present application communicates with a BMS (Battery Management System ) in a smart car, and is used to charge the smart car. Therefore, in this embodiment, in order to facilitate the use of the multi-channel switch matrix control device provided in the present application in practical applications, a communication port 16 for performing data communication with a peripheral controller is further provided on the multi-channel switch matrix 13.
In particular, the communication port 16 on the multi-channel switch matrix 13 may be set to at least one of a CAN (Controller Area Network ) port, an RS485 (Recommended Standard, recommended standard) port, an RS232 port, and a LAN (Local Area Network ) port. In practical applications, it is necessary to set the communication ports 16 in the multi-channel switch matrix 13 as the type of communication ports, which is determined according to the communication protocol of the peripheral controller communicating with the logic control chip.
Obviously, by the technical scheme provided by the embodiment, the convenience of the multichannel switch matrix control device in practical application can be further improved.
Based on the above embodiments, the technical solution is further described and optimized in this embodiment, and as a preferred implementation manner, the logic control chip 11 is an MCU.
In this embodiment, the logic control chip 11 in the multi-channel switch matrix may be set as an MCU (Micro Controller Unit, micro control unit), and the MCU has a powerful logic calculation function compared with other logic control chips 11, and is small in size and light in weight, so that when the logic control chip 11 in the multi-channel switch matrix is set as an MCU, the space volume occupied by the multi-channel switch matrix can be relatively reduced.
Based on the above embodiments, the technical solution is further described and optimized in this embodiment, please refer to fig. 2, and fig. 2 is a block diagram of another multi-channel switch matrix control device provided in the embodiment of the present utility model. As a preferred embodiment, the multi-channel switch matrix device further includes:
and the EMC protection circuit 17 is connected with the logic control chip 11 and is used for EMC protection of the multi-channel switch matrix 13.
In this embodiment, an EMC protection circuit 17 connected to the logic control chip 11 is further disposed in the multi-channel switch matrix 13, for protecting the multi-channel switch matrix 13 from EMC (Electro Magnetic Compatibility ), and the EMC protection circuit 17 is used to inhibit electromagnetic interference generated by the multi-channel switch matrix 13 during operation, so as to ensure safe and stable operation of the multi-channel switch matrix 13.
It should be noted that, since the EMC protection circuit 17 is a circuit function module that is relatively common in practical applications, in this embodiment, the internal structure of the EMC protection circuit 17 disposed in the multi-channel switch matrix 13 is not described in detail.
Obviously, by the technical scheme provided by the embodiment, the safety of the multichannel switch matrix control device in the use process can be further improved.
Based on the above embodiments, the present embodiment further describes and optimizes the technical solution, and as a preferred implementation manner, the power conversion module 14 is an AC/DC conversion module or a DC/AC conversion module or a plurality of parallel AC/DC conversion modules or a plurality of parallel DC/AC conversion modules or a bidirectional AC/DC conversion module or a plurality of parallel bidirectional AC/DC conversion modules.
In practical applications, the power conversion module 14 in the multi-channel switch matrix device may be configured as an AC/DC (Alternating Current To Direct Current ) conversion module or a DC/AC (Direct Current To Alternating Current, direct current to alternating current) conversion module or a plurality of parallel AC/DC conversion modules or a plurality of parallel DC/AC conversion modules or a bi-directional AC/DC conversion module or a plurality of parallel bi-directional AC/DC conversion modules.
Referring to fig. 3 to 13, fig. 3 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge and discharge system composed of N mutually independent AC/DC conversion modules; fig. 4 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge and discharge system composed of N mutually independent DC/AC conversion modules; fig. 5 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls N groups of charge and discharge systems composed of N AC/DC conversion modules connected in parallel with each other; fig. 6 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls N groups of charge and discharge systems composed of N DC/AC conversion modules connected in parallel with each other; fig. 7 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent AC/DC conversion modules; fig. 8 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent DC/AC conversion modules; fig. 9 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system formed by N groups of N AC/DC conversion modules connected in parallel with each other; fig. 10 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent bidirectional AC/DC conversion modules; fig. 11 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system composed of N mutually independent bidirectional AC/DC conversion modules; fig. 12 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase four-wire system, and the multichannel switch matrix controls a charge-discharge system formed by N groups of N bidirectional AC/DC conversion modules connected in parallel with each other; fig. 13 is a circuit diagram of a multichannel switch matrix control device according to an embodiment of the present utility model when the input mains supply is three-phase five-wire system, and the multichannel switch matrix controls a charge-discharge system formed by N groups of N bidirectional AC/DC conversion modules connected in parallel with each other.
Obviously, by the technical scheme provided by the embodiment, the multi-channel switch matrix control device provided by the application can be suitable for more application scenes.
Correspondingly, the embodiment of the utility model also discloses a charging and discharging system which comprises a charging control unit and a multichannel switch matrix control device disclosed in the specification, wherein the charging control unit controls the multichannel switch matrix control device.
The charge-discharge system provided by the embodiment of the utility model has the beneficial effects of the multichannel switch matrix control device disclosed by the embodiment of the utility model.
Based on the technical disclosure of the foregoing embodiments, in order to enable those skilled in the art to more clearly understand the implementation principle of the multi-channel switch matrix control device provided in the present application, the foregoing technical disclosure is described in detail by using one application scenario embodiment. Referring to fig. 14, fig. 14 is a schematic diagram of a multi-channel switch matrix control device according to an embodiment of the present utility model when communicating with a CCU in a charge-discharge system.
In fig. 14, CCU17 denotes a charge control unit (Charge Control Unit) in the charge-discharge system. The CCU can distribute power according to the power requirement of the intelligent automobile and control the power conversion module to output power according to the requirement. When the multichannel switch matrix control device is communicated with a CCU in the charge-discharge system, if a plurality of power conversion modules are called, the alternating current relays in the corresponding switch control units in the multichannel switch matrix are attracted, and at the moment, the power conversion modules are matched with the alternating current relays in the multichannel switch matrix for use, so that the purpose of supplying power to the called power conversion modules can be achieved, the alternating current relays in the multichannel switch matrix corresponding to the power conversion modules which are not called are still disconnected, namely, the power conversion modules which are not called are in a power-off state and cannot generate standby power consumption and reactive power consumption.
In practical application, it is assumed that the total power of the system of the multi-channel switch matrix device is 240KW, the power of a single power conversion module is 20KW, the number 1 power conversion module in the system fails, an intelligent automobile charges, and the BMS demand power of the intelligent automobile is 120KW.
Then, after the logic control chip in the multi-channel switch matrix device communicates with the CCU in the charge-discharge system, the ac relay in the switch control unit corresponding to the # 1 power conversion module is disconnected; when the charging gun of the intelligent automobile is inserted into the multichannel switch matrix device to start charging, the logic control chip judges that the BMS required power of the intelligent automobile is smaller than the total power of the system minus the power of a single power conversion module, and at the moment, the logic control chip comprehensively judges the overall condition of the power conversion module and determines the calling power conversion module which needs to charge the intelligent automobile and the power conversion module in an idle state in the system. After the multichannel switch matrix receives the analysis command sent by the logic control chip, the alternating current relays in the corresponding switch control units are respectively attracted and disconnected according to the analysis information sent by the logic control chip, so that the aim of charging the intelligent automobile is fulfilled.
When the logic control chip selects the power conversion module for charging the intelligent automobile, the logic control chip can preferably select the power conversion module with longer idle time based on the idle time of the power conversion module to charge the intelligent automobile.
Obviously, in the multi-channel switch matrix device provided by the application, because the switch control units for controlling the power conversion modules are mutually independent, when an idle power conversion module exists in a charge-discharge system formed by the power conversion modules, the switch control units corresponding to the idle power conversion modules can be turned off through the logic control chip in the multi-channel switch matrix, so that the purpose of cutting the idle power conversion modules from the charge-discharge system is achieved, and the power consumption of the power conversion modules in the charge-discharge system in idle or standby can be remarkably reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The multichannel switch matrix control device is characterized by comprising a multichannel switch matrix formed by a logic control chip and a plurality of mutually independent switch control units, wherein the plurality of mutually independent switch control units are controlled by the logic control chip, each switch control unit is used for controlling the state of a passage between a power conversion module and input mains supply, a plurality of alternating current relays are arranged in each switch control unit, and the conduction state of each power transmission line in other power transmission lines except for the ground wire in the input mains supply is respectively controlled by the corresponding alternating current relay.
2. The multi-channel switch matrix control device of claim 1, further comprising a power module coupled to the logic control chip for powering each ac relay in the logic control chip and the switch control unit.
3. The multi-channel switch matrix control device of claim 1 wherein the logic control chip controls each of the switch control units by means of a hard-wired connection.
4. The multi-channel switch matrix control device of claim 1, wherein a communication port is provided on the multi-channel switch matrix.
5. The multi-channel switch matrix control device of claim 4 wherein the communication ports are: at least one of CAN port, RS485 port, RS232 port and LAN port.
6. The multi-channel switch matrix control device of claim 1, wherein the logic control chip is an MCU.
7. The multi-channel switch matrix control device of claim 1 wherein the input mains is a three-phase four-wire system or a three-phase five-wire system mains.
8. The multi-channel switch matrix control device of claim 1, further comprising:
and the EMC protection circuit is connected with the logic control chip and used for carrying out EMC protection on the multichannel switch matrix.
9. The multi-channel switch matrix control device of any one of claims 1 to 8, wherein the power conversion module is an AC/DC conversion module or a DC/AC conversion module or a plurality of parallel AC/DC conversion modules or a plurality of parallel DC/AC conversion modules or a bi-directional AC/DC conversion module or a plurality of parallel bi-directional AC/DC conversion modules.
10. A charge-discharge system comprising a charge control unit and a multi-channel switch matrix control device according to any one of claims 1 to 9, said charge control unit controlling said multi-channel switch matrix control device.
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| CN202223590921.7U CN219046428U (en) | 2022-12-29 | 2022-12-29 | Multichannel switch matrix control device and charging and discharging system |
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| CN202223590921.7U CN219046428U (en) | 2022-12-29 | 2022-12-29 | Multichannel switch matrix control device and charging and discharging system |
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