CN216900704U - Energy consumption metering system - Google Patents
Energy consumption metering system Download PDFInfo
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- CN216900704U CN216900704U CN202122544542.3U CN202122544542U CN216900704U CN 216900704 U CN216900704 U CN 216900704U CN 202122544542 U CN202122544542 U CN 202122544542U CN 216900704 U CN216900704 U CN 216900704U
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Abstract
The utility model relates to an energy consumption metering system, comprising: the energy consumption meter comprises a signal conversion module and an energy consumption meter; each converter is internally provided with a signal conversion module; the signal conversion module is connected with the energy consumption meter; the signal conversion module collects network voltage information and bus current information of the converter and sends the network voltage information and the bus current information to the energy consumption meter; the grid voltage information and the bus current information are provided with current transformers I D; the energy consumption meter calculates the corresponding network voltage information and bus current information according to the current transformer I D to obtain the energy consumption information of each current transformer, and calculates the total energy consumption information according to the energy consumption information.
Description
Technical Field
The utility model relates to the field of metering, in particular to an energy consumption metering system.
Background
In order to accurately measure the electric energy consumption of a train in the running process, the traction energy consumption, the auxiliary energy consumption and the generated energy of the train in an electric braking state need to be measured in real time.
In the conventional method, related energy consumption metering equipment is installed in a train, for example, a subway 3M3T marshalling vehicle is taken as an example, and as shown in fig. 1, a set of traction energy consumption metering device is installed in each motor train traction converter. Each set of traction energy consumption metering device comprises an energy consumption meter, a voltage sensor and a current sensor. The voltage sensor is used for measuring the voltage of the bus of the vehicle, and the current sensor is used for measuring the current of the bus of the vehicle. The energy consumption meter collects bus voltage and bus current to calculate traction energy consumption and electric braking generating capacity, and two sets of energy consumption metering devices are respectively installed in auxiliary converters of trailers at two ends of the train and used for metering energy consumption of auxiliary systems. The energy consumption metering system needs to install 5 network voltage sensors, 5 bus current sensors and 5 energy consumption meters in the train, the hardware cost is high, in addition, power supply cables need to be added, and the installation is troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an energy consumption metering system, wherein a signal conversion module is installed in each traction converter and each auxiliary converter, and an intelligent energy consumption meter is installed on a train.
In order to achieve the above object, an embodiment of the present invention provides an energy consumption metering system, where the energy consumption metering system includes: the energy consumption meter comprises a signal conversion module and an energy consumption meter;
each converter is internally provided with a signal conversion module; the signal conversion module is connected with the energy consumption meter;
the signal conversion module collects network voltage information and bus current information of the converter and sends the network voltage information and the bus current information to the energy consumption meter; the network voltage information and the bus current information have converter IDs;
and the energy consumption meter calculates the corresponding network voltage information and bus current information according to the current transformer ID to obtain the energy consumption information of each current transformer, and calculates the total energy consumption information according to the energy consumption information.
Preferably, the signal conversion module includes: the system comprises a conversion processor, a conversion communication module and a signal acquisition and conversion module;
the signal acquisition and conversion module converts sampling current signals output by a network voltage sensor and a bus current sensor of the train into voltage signals;
and the conversion processor calculates network voltage information and bus current information according to the voltage signal, and sends the network voltage information and the bus current information to the energy consumption meter through the conversion communication module.
Further preferably, the voltage signal is converted into a current signal by a conversion component, so as to control the traction control unit TCU and the auxiliary control unit ACU.
Further preferably, the signal acquisition and conversion module includes: the system comprises a network voltage signal conversion module and a bus current signal conversion module;
the network pressure signal converter acquires network pressure information of the network pressure sensor;
and the bus current signal conversion module acquires bus current information of the bus current sensor.
Further preferably, the signal conversion module further comprises a conversion power module;
the conversion power supply module is used for supplying power to the conversion processor.
Preferably, the energy consumption meter comprises: the energy consumption communication module and the energy consumption processor;
the energy consumption processor obtains the network voltage information and the bus current information through the energy consumption communication module, calculates the corresponding network voltage information and the corresponding bus current information according to the current transformer ID to obtain the energy consumption information of each current transformer, and calculates the total energy consumption information according to the energy consumption information.
Further preferably, the energy consumption processor sends the energy consumption information and the total energy consumption information of each converter to the vehicle control unit VCU through the energy consumption communication module.
Further preferably, the energy consumption meter further comprises: an energy consumption power supply module;
and the energy consumption power supply module is used for supplying power to the energy consumption processor and the signal conversion module.
According to the energy consumption metering system provided by the embodiment of the utility model, the signal conversion module is installed in each traction converter and each auxiliary converter, and the intelligent energy consumption meter is installed on the train.
Drawings
FIG. 1 is a schematic diagram of an energy consumption metering system provided in the prior art;
FIG. 2 is a schematic diagram of an energy consumption metering system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a signal conversion module according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an energy consumption meter provided in an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
According to the energy consumption metering system provided by the embodiment of the utility model, the signal conversion module is installed in each traction converter and each auxiliary converter, and the intelligent energy consumption meter is installed on the train.
Fig. 2 is a schematic diagram of an energy consumption metering system according to an embodiment of the present invention, and as shown in fig. 2, the energy consumption metering system includes: a signal conversion module 1 and an energy consumption meter 2. Each converter is internally provided with a signal conversion module 1. The signal conversion module 1 is connected with the energy consumption meter 2. The signal conversion module 1 collects network voltage information and bus current information of the converter and sends the network voltage information and the bus current information to the energy consumption meter 2. The signal conversion module 1 adopts the Power Over Ethernet (POE) technology to supply Power and transmit information, and compared with the traditional scheme, the signal conversion module saves the hardware cost of sensors and the like, and reduces a large amount of wiring and installation work. The grid voltage information and the bus current information have a converter ID. The energy consumption meter 2 calculates the corresponding network voltage information and the bus current information according to the current transformer ID to obtain the energy consumption information of each current transformer, and calculates the total energy consumption information according to the energy consumption information.
Fig. 3 is a schematic diagram of a signal conversion module 1 according to an embodiment of the present invention, and as shown in fig. 3, the signal conversion module 1 includes: a conversion processor 11, a conversion communication module 12 and a signal acquisition and conversion module 13. The signal acquisition and conversion module 13 converts the sampled current signals output by the network voltage sensor and the bus current sensor of the train into voltage signals. The voltage signal is divided into two paths, one path is sent to the conversion processor 11, the conversion processor 11 calculates network voltage information and bus current information according to the voltage signal, and the network voltage information and the bus current information are sent to the energy consumption meter 2 through the conversion communication module 12. The other path of voltage signal is converted into a current signal by a conversion component, and is used for controlling a Traction Control Unit (TCU) and an Auxiliary Control Unit (ACU).
Wherein, the signal collecting and converting module 13 includes: a network voltage signal conversion module 131 and a bus current signal conversion module 132. The conversion processor 11 is preferably a Digital Signal Processing (DSP) chip. And the network pressure signal converter acquires network pressure information of the network pressure sensor. The bus current signal conversion module 132 collects bus current information of the bus current sensor.
In addition, the signal conversion module 1 further includes a conversion power module 14, and the conversion power module 14 is configured to supply power to the conversion processor 11. In one specific example, a 24V power supply is converted to 5V or 3.3V to power the DSP chip and the driver circuit.
Fig. 4 is a schematic diagram of an energy consumption meter 2 according to an embodiment of the present invention, and as shown in fig. 4, the energy consumption meter 2 includes: a power consumption communication module 22 and a power consumption processor 21. The energy consumption processor 21 obtains the network voltage information and the bus current information through the energy consumption communication module 22, calculates the corresponding network voltage information and the corresponding bus current information according to the current transformer ID to obtain the energy consumption information of each current transformer, and calculates the total energy consumption information according to the energy consumption information.
The energy consumption processor 21 sends the energy consumption information and the total energy consumption information of each converter to a Vehicle Control Unit (VCU) through the energy consumption communication module 22, so as to realize communication between the energy consumption meter 2 and the Vehicle Control Unit, and enable drivers and passengers to know and record the energy consumption information in real time. Meanwhile, the energy consumption information can be displayed through the vehicle control unit, and the energy consumption meter 2 can be configured and reset.
The energy consumption meter 2 further comprises: a power consuming power module 23. The energy consumption power module 23 is used for supplying power to the energy consumption processor 21 and the signal conversion module 1.
The advantages of the present invention will be further illustrated by comparing the conventional scheme with the energy consumption metering system of the present invention.
In the traditional scheme, a network voltage sensor is additionally arranged in the converter for measuring network voltage, and a bus current sensor is used for measuring bus current.
The signal conversion module 1 can directly read the network voltage and the bus current from the network voltage sensor and the bus current sensor which are inherent in the converter on the premise of not influencing the work of the converter, and compared with the traditional scheme, the signal conversion module does not need to additionally increase the network voltage sensor and the bus current sensor, saves the hardware cost of the sensors and the like, and reduces a large amount of wiring and installation work.
In the traditional scheme, an energy consumption meter 2 needs to be independently installed in each traction converter or each auxiliary converter, no communication exists between the energy consumption meters 2 of each converter, the energy consumption information of each converter needs to be independently calculated, and the intelligent degree is low.
The whole train only needs one energy consumption meter 2 to replace a plurality of energy consumption metering devices of the original system, the integration level and the intelligent degree are improved, and the wiring work is reduced.
In the conventional scheme, a large amount of wiring needs to be added while an energy consumption metering system is added.
The energy consumption meter 2 acquires the network voltage information and the bus current information of each converter through a TCP/IP technology, and the signal conversion module 1 supplies power through a network cable by using a POE technology, so that the work of extra power supply is reduced, and extra wiring is not needed. And the energy consumption meter 2 can transmit the total energy consumption information and the energy consumption information of each converter to the VCU through a TCP/IP technology, so that vehicle personnel can acquire the vehicle energy consumption information in real time.
According to the energy consumption metering system provided by the embodiment of the utility model, the signal conversion module is installed in each traction converter and each auxiliary converter, and the intelligent energy consumption meter is installed on the train.
In the present invention, terms should be broadly construed, and specific meanings of the terms in the present invention can be understood by those skilled in the art according to specific situations.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. An energy consumption metering system, characterized in that the energy consumption metering system comprises: the energy consumption meter comprises a signal conversion module and an energy consumption meter;
a signal conversion module is arranged in each converter; the signal conversion module is connected with the energy consumption meter;
the signal conversion module collects network voltage information and bus current information of the converter and sends the network voltage information and the bus current information to the energy consumption meter; the network voltage information and the bus current information have converter IDs;
and the energy consumption meter calculates the corresponding network voltage information and bus current information according to the current transformer ID to obtain the energy consumption information of each current transformer, and calculates the total energy consumption information according to the energy consumption information.
2. The energy consumption metering system of claim 1, wherein the signal conversion module comprises: the system comprises a conversion processor, a conversion communication module and a signal acquisition and conversion module;
the signal acquisition and conversion module converts sampling current signals output by a network voltage sensor and a bus current sensor of the train into voltage signals;
and the conversion processor calculates network voltage information and bus current information according to the voltage signal, and sends the network voltage information and the bus current information to the energy consumption meter through the conversion communication module.
3. The energy consumption metering system of claim 2, wherein the voltage signal is converted into a current signal by a conversion component to control the traction control unit TCU and the auxiliary control unit ACU.
4. The energy consumption metering system of claim 2, wherein the signal acquisition and conversion module comprises: the system comprises a network voltage signal conversion module and a bus current signal conversion module;
the network pressure signal converter acquires network pressure information of the network pressure sensor;
and the bus current signal conversion module acquires bus current information of the bus current sensor.
5. The energy consumption metering system of claim 2, wherein the signal conversion module further comprises a conversion power module;
the conversion power supply module is used for supplying power to the conversion processor.
6. The energy consumption metering system of claim 1, wherein the energy consumption meter comprises: the energy consumption communication module and the energy consumption processor;
the energy consumption processor obtains the network voltage information and the bus current information through the energy consumption communication module, calculates the corresponding network voltage information and the corresponding bus current information according to the current transformer ID to obtain the energy consumption information of each current transformer, and calculates the total energy consumption information according to the energy consumption information.
7. The energy consumption metering system of claim 6, wherein the energy consumption processor sends the energy consumption information and the total energy consumption information of each converter to a Vehicle Control Unit (VCU) through the energy consumption communication module.
8. The energy consumption metering system of claim 6, wherein the energy consumption meter further comprises: an energy consumption power supply module;
and the energy consumption power supply module is used for supplying power to the energy consumption processor and the signal conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122544542.3U CN216900704U (en) | 2021-10-21 | 2021-10-21 | Energy consumption metering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122544542.3U CN216900704U (en) | 2021-10-21 | 2021-10-21 | Energy consumption metering system |
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| Publication Number | Publication Date |
|---|---|
| CN216900704U true CN216900704U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122544542.3U Active CN216900704U (en) | 2021-10-21 | 2021-10-21 | Energy consumption metering system |
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| CN (1) | CN216900704U (en) |
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2021
- 2021-10-21 CN CN202122544542.3U patent/CN216900704U/en active Active
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