Bus electric energy loss monitoring system

Abstract

The embodiment of the utility model discloses a bus electric energy loss monitoring system, which comprises at least two voltage measuring instruments, a current measuring instrument and a server, and is characterized in that the voltage measuring instruments are respectively connected with a measuring point of a first bus and a measuring point of a second bus through wires, the first bus is a part of bus in front of electric equipment, and the second bus is a part of bus in front of electric equipment; the second bus is a part of the bus behind the electric equipment; the current measuring instrument is connected with a measuring point of the bus through a lead; the voltage measuring instrument and the current measuring instrument are connected with the server. The problems that in the prior art, the accuracy of manually measuring and calculating the electric energy loss of the bus of the aluminum electrolysis cell is low, and specific line loss data cannot be efficiently and accurately detected in real time are solved.

Description

Technical Field

[0001] The present application relates to the technical field of power consumption monitoring, and in particular to a bus power consumption monitoring system. Background Art

[0002] The busbar of the aluminum electrolysis cell has distributed resistance, which leads to large power loss. There is no special equipment for monitoring. The currently commonly used manual measurement and calculation has low accuracy and cannot detect the specific line loss data in real time, efficiently and accurately. Summary of the invention

[0003] The purpose of the present application is to provide a busbar power loss monitoring system to solve the problem that the manual measurement and calculation of the busbar power loss of the aluminum electrolysis cell commonly used in the prior art has low accuracy and cannot detect the specific line loss data in real time, efficiently and accurately.

[0004] To achieve the above-mentioned purpose, the embodiment of the present application provides a bus power consumption monitoring system, including: a voltage measuring instrument, a current measuring instrument, and a server, wherein:

[0005] There are at least two voltage measuring instruments, which are connected to the measuring points of the first busbar and the second busbar through wires respectively, the first busbar is the part of the busbar before the electrical equipment, and the second busbar is the part of the busbar after the electrical equipment;

[0006] The current measuring instrument is connected to the measuring point of the busbar via a wire;

[0007] The voltage measuring instrument and the current measuring instrument are connected to the server.

[0008] Optionally, each of the voltage measuring instruments is connected to two measuring points, measures the voltage between the two connected measuring points, and sends the maximum voltage value, the minimum voltage value, and the average voltage value obtained within the time period to the server at every preset time period.

[0009] Optionally, the current measuring instrument connects two measuring points of the busbar, measures the current between the two connected measuring points, and sends the maximum current value, the minimum current value, and the average current value obtained within the time period to the server every preset time period.

[0010] Optionally, it also includes:

[0011] A power adapter is connected to the voltage measuring instrument and the current measuring instrument respectively for supplying power.

[0012] Optionally, the server is used to obtain the voltage data and current data sent by the voltage measuring instrument and the current measuring instrument, calculate the power according to the formula P=UI, and generate the consumed electric energy by integrating it according to the time period and save it to the database.

[0013] Optionally, it also includes:

[0014] The terminal device is connected to the server and is used to display and print the histogram or table of current, voltage, power and energy consumption in the database.

[0015] Optionally, the voltage measuring instrument includes a voltage sensor, a signal processing unit, a data transmission unit, and a power management unit, wherein:

[0016] The voltage sensor is used to sense and measure the voltage on the busbar;

[0017] The signal processing unit is connected to the voltage sensor, and amplifies, filters and digitizes the signal acquired by the voltage sensor to obtain processed voltage data;

[0018] The data transmission unit is connected to the signal processing unit, and uploads the processed voltage data to the server via wired or wireless means;

[0019] The power management unit is used to provide power supply.

[0020] Optionally, the current measuring instrument indirectly measures the bus current through a 0-5V voltage signal, and includes a voltage sensor, a signal processing unit, a data transmission unit, and a power management unit, wherein:

[0021] The voltage sensor is used to sense and measure the voltage on the busbar;

[0022] The signal processing unit is connected to the voltage sensor, and amplifies, filters and digitizes the signal acquired by the voltage sensor to obtain processed current data;

[0023] The data transmission unit is connected to the signal processing unit, and uploads the processed current data to the server via wired or wireless means;

[0024] The power management unit is used to provide power supply.

[0025] Optionally, the distance between two measuring points connected to the voltage measuring instrument or the current measuring instrument is 30 cm to 50 cm.

[0026] Optionally, the voltage measuring instrument and the current measuring instrument are connected to the server via a 4G network.

[0027] The embodiments of the present application have the following advantages:

[0028] An embodiment of the present application provides a bus power consumption monitoring system, including: a voltage measuring instrument, a current measuring instrument, and a server, wherein there are at least two voltage measuring instruments, which are respectively connected to a measuring point of a first bus and a measuring point of a second bus through a wire, wherein the first bus is a part of the bus before the electrical equipment, and the second bus is a part of the bus after the electrical equipment; the current measuring instrument is connected to the measuring points of the bus through a wire; and the voltage measuring instrument and the current measuring instrument are connected to the server.

[0029] Compared with the prior art, this application provides a busbar power consumption monitoring system that can realize comprehensive monitoring of busbar voltage and current, and perform real-time data processing and energy consumption analysis through a server. The system has high accuracy and stability, and can provide strong support for the energy management and energy conservation and emission reduction of enterprises. At the same time, the scalability and flexibility of the system also enable it to adapt to monitoring scenarios of different scales and needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0031] Figure 1 A schematic diagram of the structure of a busbar power consumption monitoring system provided in one embodiment of the present application;

[0032] Figure 2 A schematic diagram of the connection between a voltage measuring instrument and a current measuring instrument of a bus power loss monitoring system provided in one embodiment of the present application. DETAILED DESCRIPTION

[0033] The following is a description of the implementation of the present application by specific specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0036] An embodiment of the present application provides a busbar power consumption monitoring system, referring to Figure 1 to Figure 2 , including: a voltage measuring instrument 3, a current measuring instrument 4, and a server, wherein:

[0037] There are at least two voltage measuring instruments 3, which are connected to the measuring points of the first busbar 1 and the second busbar 2 through wires, respectively. The first busbar 1 is a part of the busbar before the electrical equipment, and the second busbar 2 is a part of the busbar after the electrical equipment;

[0038] The current measuring instrument 4 is connected to the measuring point of the busbar via a wire;

[0039] The voltage measuring instrument 3 and the current measuring instrument 4 are connected to the server.

[0040] Specifically, there can be multiple voltage measuring instruments 3. At least one voltage measuring instrument is provided at the part of the busbar before the electrical equipment (i.e., the first busbar 1), and at least one voltage measuring instrument 3 is provided at the part of the busbar after the electrical equipment (i.e., the second busbar 2). The busbar voltages before and after the electrical equipment are monitored separately to obtain the average voltage U. There can be multiple electrical equipment, i.e., the first busbar 1 is the busbar portion before connecting multiple electrical equipment, the second busbar 2 is the busbar portion after connecting multiple electrical equipment, or the second busbar 2 is the busbar portion between two electrical equipment, so that n segmented voltage data can be obtained. The measurement point in the embodiment of the present application refers to the connection point of the voltage measuring instrument or the current measuring instrument at a preset position on the busbar through a wire. The position of the measurement point is not fixed, and a position convenient for measurement can be selected as the measurement point according to the situation.

[0041] Specifically, at a convenient location for picking up the bus, the bus current I is indirectly measured by the current measuring instrument 4 through a 0-5V voltage signal. After receiving the data, the server calculates the power according to the formula P=UI, and generates the consumed power by time period integration and saves it to the database. The database server can be MS-SQL Server.

[0042] The method for calculating the power loss is: E = P˙t = U˙I˙t

[0043] Where: P is power, t is working time, U is bus distribution voltage, obtained by monitoring each line segment, and I is bus current, indirectly measured from 0-5V signal.

[0044] In some embodiments, each of the voltage measuring instruments 3 is connected to two measuring points, measures the voltage between the two connected measuring points, and sends the maximum voltage value, the minimum voltage value, and the average voltage value obtained within the time period to the server every preset time period.

[0045] In some embodiments, the current measuring instrument 4 connects two measuring points of the busbar, measures the current between the two connected measuring points, and sends the maximum current value, minimum current value, and average current value obtained within the time period to the server at every preset time period.

[0046] Specifically, the voltage measuring instrument 3 and the current measuring instrument 4 can obtain the maximum, minimum and average values ​​of the voltage and current measured within a period of 5 minutes and report them to the server.

[0047] In some embodiments, it further comprises: a power adapter, connected to the voltage measuring instrument 3 and the current measuring instrument 4 respectively, for power supply. Specifically, the power adapter can convert AC220V to DC12V@1A.

[0048] In some embodiments, it also includes: a terminal device connected to the server, used to display and print a histogram or table of current, voltage, power, and energy consumption in the database.

[0049] Specifically, managers can use the application on the terminal to view, print or unload histograms and tables of current, voltage, power and energy consumption with a period of 5 minutes, hourly, daily or yearly according to custom formulas at any time.

[0050] In some embodiments, the voltage measuring instrument 3 includes a voltage sensor, a signal processing unit, a data transmission unit, and a power management unit, wherein:

[0051] The voltage sensor is used to sense and measure the voltage on the busbar;

[0052] The signal processing unit is connected to the voltage sensor, and amplifies, filters and digitizes the signal acquired by the voltage sensor to obtain processed voltage data;

[0053] The data transmission unit is connected to the signal processing unit, and uploads the processed voltage data to the server via wired or wireless means;

[0054] The power management unit is used to provide power supply.

[0055] In some embodiments, the current measuring instrument 4 indirectly measures the bus current through a 0-5V voltage signal, and includes a voltage sensor, a signal processing unit, a data transmission unit, and a power management unit, wherein:

[0056] The voltage sensor is used to sense and measure the voltage on the busbar;

[0057] The signal processing unit is connected to the voltage sensor, and amplifies, filters and digitizes the signal acquired by the voltage sensor to obtain processed current data;

[0058] The data transmission unit is connected to the signal processing unit, and uploads the processed current data to the server via wired or wireless means;

[0059] The power management unit is used to provide power supply.

[0060] Specifically, the current measurement method using the current measuring instrument in this embodiment is an indirect measurement method. Usually, an ammeter is needed to directly measure the current, but this may be inconvenient or impractical in some cases, such as when the busbar diameter of the electrolytic cell is too large and it is difficult to directly measure the current. Therefore, an indirect method is used here to infer or know the magnitude of the current through voltage. For example, a small resistor (also called a sampling resistor or precision resistor) is connected to the current measuring instrument, which senses the current on the busbar and generates a corresponding voltage. The voltage range is 0-5V, and the magnitude of the current on the busbar can be indirectly known by measuring this voltage. The advantage of this method is that it can measure the current without directly contacting the high-current busbar, providing a safe and convenient method to monitor and record the busbar current.

[0061] In some embodiments, the distance between two measuring points connected to the voltage measuring instrument 3 or the current measuring instrument 4 is 30 cm to 50 cm.

[0062] In some embodiments, the voltage measuring instrument and the current measuring instrument are connected to the server via a 4G network.

[0063] In summary, compared with the prior art, this application provides a busbar power consumption monitoring system that can realize comprehensive monitoring of busbar voltage and current, and perform real-time data processing and energy consumption analysis through a server. The system has high accuracy and stability, and can provide strong support for the energy management and energy conservation and emission reduction of enterprises. At the same time, the scalability and flexibility of the system also enable it to adapt to monitoring scenarios of different scales and needs.

[0064] Note that, unless otherwise directly stated, all features disclosed in this specification (including any attached claims, abstracts and drawings) may be replaced by alternative features for achieving the same, equivalent or similar purposes. Therefore, unless otherwise explicitly stated, each feature disclosed is only an example of a group of equivalent or similar features. Where used, further, preferably, further and more preferably are simple beginnings for elaborating another embodiment based on the aforementioned embodiment, and the content of the further, preferably, further or more preferably followed by the combination with the aforementioned embodiment constitutes a complete construction of another embodiment. Several further, preferably, further or more preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.

[0065] In the implementation of functions and steps, the corresponding functions and steps in various embodiments may also occur in a different order than shown. For example, two consecutive functions and steps may actually be performed or implemented substantially in parallel, and they may sometimes be performed or implemented in the opposite order, depending on the functions involved.

[0066] Although the present application has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made to the present application. Therefore, these modifications or improvements made without departing from the spirit of the present application all fall within the scope of protection claimed in the present application.

Claims

1. A busbar power consumption monitoring system, characterized in that: include: Voltage measuring instrument, current measuring instrument, server, among which, There are at least two voltage measuring instruments, which are connected to the measuring points of the first busbar and the second busbar through wires respectively, the first busbar is the part of the busbar before the electrical equipment, and the second busbar is the part of the busbar after the electrical equipment; The current measuring instrument is connected to the measuring point of the busbar via a wire; The voltage measuring instrument and the current measuring instrument are connected to the server.

2. The busbar power consumption monitoring system according to claim 1 is characterized in that: Each of the voltage measuring instruments is connected to two measuring points, measures the voltage between the two connected measuring points, and sends the maximum voltage value, the minimum voltage value, and the average voltage value obtained within the time period to the server at every preset time period.

3. The busbar power consumption monitoring system according to claim 1, characterized in that: The current measuring instrument is connected to two measuring points of the busbar, measures the current between the two connected measuring points, and sends the maximum current value, the minimum current value, and the average current value obtained within the time period to the server at every preset time period.

4. The busbar power consumption monitoring system according to claim 1, characterized in that: Also includes: A power adapter is connected to the voltage measuring instrument and the current measuring instrument respectively for supplying power.

5. The busbar power consumption monitoring system according to claim 1, characterized in that: The server is used to obtain the voltage data and current data sent by the voltage measuring instrument and the current measuring instrument, calculate the power according to the formula P=UI, and generate the consumed electric energy by time period integration and save it in the database.

6. The busbar power consumption monitoring system according to claim 5, characterized in that: Also includes: The terminal device is connected to the server and is used to display and print the histogram or table of current, voltage, power and energy consumption in the database.

7. The busbar power consumption monitoring system according to claim 1, characterized in that: The voltage measuring instrument includes a voltage sensor, a signal processing unit, a data transmission unit, and a power management unit, wherein: The voltage sensor is used to sense and measure the voltage on the busbar; The signal processing unit is connected to the voltage sensor, and amplifies, filters and digitizes the signal acquired by the voltage sensor to obtain processed voltage data; The data transmission unit is connected to the signal processing unit, and uploads the processed voltage data to the server via wired or wireless means; The power management unit is used to provide power supply.

8. The busbar power consumption monitoring system according to claim 1, characterized in that: The current measuring instrument indirectly measures the bus current through a 0-5V voltage signal, and includes a voltage sensor, a signal processing unit, a data transmission unit, and a power management unit, wherein: The voltage sensor is used to sense and measure the voltage on the busbar; The signal processing unit is connected to the voltage sensor, and amplifies, filters and digitizes the signal acquired by the voltage sensor to obtain processed current data; The data transmission unit is connected to the signal processing unit, and uploads the processed current data to the server via wired or wireless means; The power management unit is used to provide power supply.

9. The busbar power consumption monitoring system according to claim 1, characterized in that: The distance between two measuring points connected to the voltage measuring instrument or the current measuring instrument is 30 cm to 50 cm.

10. The busbar power consumption monitoring system according to claim 1, characterized in that: The voltage measuring instrument and the current measuring instrument are connected to the server via a 4G network.

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