Intelligent load box and power monitoring and debugging system

Abstract

The utility model discloses an intelligent load box and a power monitoring and debugging system. The intelligent load box comprises a box body; the communication module is suitable for transmitting data and instructions; the load module comprises a plurality of drive-by-wire circuit breakers and loads electrically connected with the drive-by-wire circuit breakers; the control module is suitable for selecting at least one drive-by-wire circuit breaker in the load module according to an instruction obtained by the communication module, enabling the selected drive-by-wire circuit breaker to be connected or disconnected, executing specified operation according to a load connected with the drive-by-wire circuit breaker, recording key data in the operation process, and transmitting the data to the communication module. According to the utility model, load selection is realized through remote switching, operation safety and operation efficiency are improved, and a safety detection mechanism for electrical performance and output capability of an AC power supply is provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing instruments and meters, and particularly relates to an intelligent load box and an electric power monitoring and debugging system. Background Art

[0002] With the increasing intelligence of power distribution systems, the use of power backend monitoring systems is becoming increasingly widespread. However, since the backend monitoring system software is deployed on the system side, its development process lacks the on-site installation and use environment of the client. During or after development, the lack of actual client load coordination often makes it impossible to accurately debug the system-side monitoring software. Furthermore, existing power debugging often requires personnel to manually load or unload the system locally, which is inconvenient, prone to errors, and presents certain risks. Utility Model Content

[0003] The utility model can simulate actual usage scenarios to provide a matching load environment, realize the loading of corresponding loads through remote control, and monitor and simulate key data during operation, thereby ensuring the normal operation of the background monitoring system and solving problems existing in the prior art.

[0004] According to one aspect of the present invention, an intelligent load box is provided, comprising: a box body; a communication module, located in the box body and adapted to transmit data and instructions; a load module, located in the box body and comprising a plurality of wire-controlled circuit breakers and one or more loads electrically connected to each of the wire-controlled circuit breakers; and a control module, located in the box body and adapted to select at least one wire-controlled circuit breaker in the load modules based on instructions obtained by the communication module, connect or disconnect the selected wire-controlled circuit breaker, perform specified operations based on the one or more loads connected to the wire-controlled circuit breaker, record key data of the one or more loads during the operation, and transmit the data to the communication module.

[0005] Optionally, the load module further includes a relay, which is electrically connected to the wire-controlled circuit breaker and is suitable for controlling the corresponding wire-controlled circuit breaker to be connected or disconnected according to the control instruction.

[0006] Optionally, the load module further includes one or more of an A-phase wire-controlled circuit breaker, a B-phase wire-controlled circuit breaker, a C-phase wire-controlled circuit breaker, and three-phase wire-controlled circuit breakers, and each wire-controlled circuit breaker is connected to one or more loads.

[0007] Optionally, when a three-phase unbalanced load is put into operation, one or two single-phase loads among the A, B, and C phase loads, and at least one three-phase load are included.

[0008] Optionally, the load is one or more resistance tubes or resistance boxes with an operating power of 5kW-10kW.

[0009] Optionally, the resistor tube is fixed to the inner shell of the box in a unilateral fixing manner, and adjacent resistor tubes are arranged in a cross pattern.

[0010] Optionally, a stainless steel heat sink is connected to the outer shell of at least one of the resistor tubes.

[0011] Optionally, the load module further includes a fan wire-controlled circuit breaker, which is used to control the start and stop of the cooling fan and is started before the single-phase or three-phase wire-controlled circuit breaker loads the corresponding load.

[0012] Optionally, the control module further includes: one or more measuring units, and the measuring unit adopts at least one of a voltage sensor, a current sensor, an active power sensor, a reactive power sensor, a power factor sensor, etc.

[0013] Optionally, the smart load box further includes: a display module installed outside the box, suitable for displaying the key data during operation and / or receiving operation instructions from the site.

[0014] According to another aspect of the present invention, a power monitoring and debugging system is provided, comprising: the above-mentioned smart load box and a monitoring station, wherein TCP / IP communication is maintained between the smart load box and the monitoring station, the monitoring station sends instructions to the smart load box, and the smart load box selects a matching load to perform a specified operation based on the received instructions, and transmits key data during the operation to the monitoring station.

[0015] Optionally, the monitoring station is suitable for displaying and storing the key data, and adjusting or changing the next instruction based on the received key data.

[0016] Optionally, the monitoring station further includes one or more of a voltage sensor, a current sensor, an active power sensor, a reactive power sensor, and a power factor sensor.

[0017] Compared to existing technologies, this new design enables load selection through remote switching, improving operational safety and efficiency. Furthermore, by combining multiple loads, it can provide load combinations corresponding to the required power, simulating various AC power devices and adapting to corresponding background monitoring and debugging needs, while also providing a safety monitoring mechanism for AC power supply electrical performance and output capacity. Furthermore, compared to traditional corrugated resistors, the resistor tubes in this solution utilize a single-sided fixed installation method with a cross-layout arrangement, improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic structural diagram of an intelligent load box according to one embodiment of the present invention;

[0019] Figure 2 This is a structural diagram of a load module in an intelligent load box according to an embodiment of the present invention;

[0020] Figure 3 This is a structural diagram of a control module in an intelligent load box according to an embodiment of the present invention;

[0021] Figure 4 This is a structural diagram of an intelligent load box according to another embodiment of the present invention;

[0022] Figure 5 This is a structural diagram of an electric power monitoring and debugging system according to one embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be described in detail below with reference to the embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0024] refer to Figure 1 Certain specific embodiments of the present invention provide an intelligent load box 100, comprising: a box body 110; a communication module 120, located in the box body 110, suitable for transmitting data and instructions; a load module 130, located in the box body 110, comprising a plurality of wire-controlled circuit breakers 131, and one or more loads 132 electrically connected to each wire-controlled circuit breaker 131; a control module 140, located in the box body 110, suitable for receiving control instructions, selecting at least one wire-controlled circuit breaker 131 in the load module 130, keeping the selected wire-controlled circuit breaker in a connected state, and performing specified operations according to the one or more loads 132 connected to the wire-controlled circuit breaker, recording key data of the load 132 during the operation, including but not limited to voltage, current, active reverse power, reactive power, power factor, etc., and transmitting the recorded key data to the communication module 120.

[0025] Specifically, the control module 140 may further include one or more relays 141 , which are electrically connected to the wire-controlled circuit breakers 131 and are adapted to control the corresponding wire-controlled circuit breakers 131 to maintain a connected state according to instructions from the control module 140 .

[0026] Among them, the load module 130 may include one or more of the A-phase wire-controlled circuit breaker, the B-phase wire-controlled circuit breaker, the C-phase wire-controlled circuit breaker, and the three-phase wire-controlled circuit breaker, and each wire-controlled circuit breaker is connected to one or more loads. Since the intelligent load box is usually used for development and testing of the power distribution system, the load connected to the wire-controlled circuit breaker can be configured according to the required load range and minimum accuracy. For example, when the power requirement of the system environment to be tested is 10-100kw, it can be equipped with at least one load with a working power of 10kw or multiple loads that can be equivalent to 10kw, and one load with a working power of 100kw or multiple loads that can be equivalent to 100kw. In order to adapt to a variety of system environments, the load 132 can be one or more loads with a working power of 5kW-10kW. The load 132 can be a resistor box, a resistor tube, etc.

[0027] In a specific embodiment of the present invention, reference Figure 2 The load module 130 includes at least one A-phase wire-controlled circuit breaker 210, at least one B-phase wire-controlled circuit breaker 220, at least one C-phase wire-controlled circuit breaker 230, and at least one three-phase wire-controlled circuit breaker 240. The A-phase wire-controlled circuit breaker 210 is connected to one or more loads 211, the B-phase wire-controlled circuit breaker 220 is connected to one or more loads 221, the C-phase wire-controlled circuit breaker 230 is connected to one or more loads 231, and the three-phase wire-controlled circuit breaker 240 is connected to one or more loads 241.

[0028] Among them, when single-phase load is put into operation, A-phase load, B-phase load or C-phase load can be put into operation respectively according to power requirements. For example, the control module 140 controls the closing or opening of the corresponding line-controlled circuit breaker 131 through the relay 141, thereby controlling the switching of the load. For another example, when a combination is put into operation, the A-phase load and the B-phase load are put into operation at the same time, the B-phase load and the C-phase load are put into operation at the same time, and the A-phase load, the B-phase load and the C-phase load are put into operation at the same time. When the three-phase load is put into operation, one or more of the three-phase loads can be put into operation respectively according to power requirements. When a three-phase unbalanced load is put into operation, one or two single-phase loads among the A, B and C phase loads should be included, and at least one three-phase load should be included. Through the above settings, a multi-power adjustable load circuit can be built to meet the system test requirements of sudden addition and subtraction, and meet multiple needs such as single-phase load, three-phase load and realization of three-phase imbalance.

[0029] Among them, one or more of load 211, load 221, load 231, and load 241 may have the same load value or different load values. For example, load 211, load 221, and load 231 may use a resistor tube with an operating power of 6 kW. For another example, load 211, load 221, and load 231 may use resistor tubes with an operating power of 4 kW, 5 kW, and 6 kW, respectively. For another example, resistor tubes with the same resistance value may be used, so that load 211, load 221, load 231, and load 241 are connected to different numbers of resistor tubes, for example, load 211, load 221, and load 231 are each connected to one resistor tube, and load 241 is connected to 5-8 resistor tubes. By properly configuring load 211, load 221, load 231, and load 241, the smart load box can adapt to the required system test environment requirements.

[0030] In one embodiment of the present invention, loads 211, 221, 231, and 241 are resistor tubes, each with a stainless steel heat sink attached to its outer shell to prevent overheating during operation. The resistor tubes are fixed to the inner shell of housing 110 using a single-sided mounting method, with adjacent resistor tubes mounted crosswise to minimize space.

[0031] In other embodiments, the load module 130 may further include a fan wire-controlled circuit breaker 250. The fan wire-controlled circuit breaker 250 is used to control the start and stop of the cooling fan and is activated before the single-phase or three-phase wire-controlled circuit breaker is loaded with the corresponding load, thereby maintaining the smart load box 100 at a normal operating temperature.

[0032] In certain embodiments of the present invention, the communication module 120 can communicate with the backend monitoring system using a network cable, Ethernet, or the like. The communication module 120, located within the housing 110, can receive control instructions from the backend monitoring system via the TCP / IP protocol and transmit the received control instructions to the control module 140 for operation. Furthermore, the communication module 120 can also transmit recorded data from the control module 140 to the backend monitoring system via the TCP / IP protocol, enabling the backend monitoring system to perform real-time observation and data analysis.

[0033] In certain specific embodiments of the present invention, the control module 140 is suitable for parsing the control instructions received by the communication module 120, and obtaining the operations to be performed, including the load value to be output, the load circuit to be selected, the operation steps, the operation running time, the record start and end time, etc. Among them, the control instruction can directly specify the load circuit to be selected, for example, the control instruction can include turning on the load circuits A, B, and C at the same time, and can also include turning on the B circuit 5 minutes after turning on the C circuit. Then, according to the control instruction obtained, the control module 140 uses the relay 141 to turn on the line-controlled circuit breaker 131 connected to the relay 141 within the specified time period, thereby causing the load connected to the line-controlled circuit breaker 131 to start working. Further, referring to Figure 3 The control module 140 may further include one or more measurement units 142 and a storage unit 143. The measurement unit 142 may be at least one of a voltage sensor, a current sensor, an active power sensor, a reactive power sensor, a power factor sensor, etc., and may be adapted to measure one or more loads in operation. The storage unit 143 may be adapted to store the measurement results of the measurement unit 142.

[0034] For example, during actual operation, after receiving a control instruction, the communication module 120 transmits it to the control module 140. The control module 140 parses the control instruction and selects the corresponding load circuit based on the control instruction. For example, if the control instruction requires testing a 12 kW load circuit, the control module 140, through one or more relays 141, causes the wire-controlled circuit breaker 131 connected to the relay 141 to open, causing the load circuit electrically connected to the wire-controlled circuit breaker 131 to operate, wherein the output load of the selected load circuit is maintained at 12 kW. When the load circuit is in operation, the control module 140 can further record key operating data of the selected load circuit, such as voltage, current, active reverse power, reactive power, power factor, etc., through, for example, the measurement unit 142. After a set time, the control module 140 again initiates a control signal, causing the wire-controlled circuit breaker 131 connected to the relay 141 to open, thereby stopping the connected load circuit. Furthermore, the control module 140 sends the recorded key data to the communication module 120. In some embodiments, the control module 140 may also store the recorded key data locally, such as in the storage unit 142 , for backup and future review.

[0035] In certain embodiments, reference Figure 4The smart load box 400 may further include a display module 150 mounted outside the box body 110, such as a display panel embedded in the outer surface of the box body or a monitoring instrument separate from the smart load box. This module is suitable for displaying key data of the load 132 during operation in real time, thereby facilitating simultaneous viewing and monitoring during near-field operation. The display module 150 is connected to the control module 140 and displays the measurement results of the measurement unit 142.

[0036] In some embodiments, the display module 150 can also receive operating instructions from the site and transmit the operating instructions to the control module 140, so that the control module 140 controls the operation of the load module 130. In a specific embodiment, the display module 150 can be a multi-function monitoring instrument that communicates through an RS485 interface according to the standard Modbos RTU protocol.

[0037] refer to Figure 5 According to another aspect of the present invention, a power monitoring and debugging system 500 is provided, comprising: the aforementioned smart load box 510 and a monitoring station 520. The smart load box 510 and the monitoring station 520 maintain TCP / IP communication. The monitoring station 520 sends instructions to the smart load box 510. The smart load box 510 selects a matching load based on the received instructions, performs a specified operation, and transmits key data during the operation to the monitoring station 520.

[0038] The monitoring station 520 includes at least one monitoring computer that displays and stores the key data and adjusts or modifies control instructions based on the key data. In some embodiments, the monitoring station 520 also includes one or more of a voltage sensor, a current sensor, an active power sensor, a reactive power sensor, and a power factor sensor, adapted to measure, calculate, or analyze data transmitted via the smart load box 510.

[0039] Compared to existing technologies, the present intelligent load box and power monitoring and debugging system improves operational safety and efficiency by enabling remote load switching. Furthermore, by combining multiple loads, it can provide load combinations corresponding to the required power, simulating various AC power devices and adapting to corresponding background monitoring and debugging needs, while also providing a safety monitoring mechanism for AC power supply electrical performance and output capacity. Furthermore, compared to traditional corrugated resistors, the present intelligent load box utilizes smaller and lighter resistor tubes, employing both single-side fixing and cross-mounting methods, improving space utilization.

Claims

1. An intelligent load box, characterized in that: include: Box; A communication module, located in the box, suitable for transmitting data and instructions; a load module, located in the box, comprising a plurality of wire-controlled circuit breakers and one or more loads electrically connected to at least one of the wire-controlled circuit breakers; The control module is located in the housing and is adapted to receive control instructions, select at least one wire-controlled circuit breaker in the load module, connect or disconnect the selected wire-controlled circuit breaker, perform specified operations based on one or more loads connected to the selected wire-controlled circuit breaker, record key data during the operation, and transmit the recorded key data to the communication module.

2. The intelligent load box according to claim 1, characterized in that: The control module further includes a relay, which is electrically connected to the wire-controlled circuit breaker and is suitable for controlling the corresponding wire-controlled circuit breaker to be connected or disconnected according to the control instruction.

3. The intelligent load box according to claim 1, characterized in that: The load module further includes one or more of an A-phase wire-controlled circuit breaker, a B-phase wire-controlled circuit breaker, a C-phase wire-controlled circuit breaker, and three-phase wire-controlled circuit breakers, and each wire-controlled circuit breaker is connected to one or more loads.

4. The intelligent load box according to claim 3, characterized in that: When a three-phase unbalanced load is connected, it includes one or two single-phase loads among the A, B, and C phase loads, and at least one three-phase load.

5. The intelligent load box according to claim 3, characterized in that: The load is one or more resistance tubes or resistance boxes with a working power of 5kW-10kW.

6. The intelligent load box according to claim 5, characterized in that: A stainless steel heat sink is connected to the outer shell of at least one of the resistor tubes.

7. The intelligent load box according to claim 5, characterized in that: The resistor tubes are fixed on the inner shell of the box in a unilateral installation manner, and adjacent resistor tubes are arranged crosswise.

8. The intelligent load box according to claim 1, characterized in that: It further includes: one or more measuring units, wherein the measuring units adopt at least one of a voltage sensor, a current sensor, an active power sensor, a reactive power sensor, and a power factor sensor.

9. The load bank according to claim 1, wherein: The intelligent load box further includes: a display module installed outside the box, suitable for displaying the key data during operation and / or receiving operation instructions from the site.

10. A power monitoring and debugging system, comprising the intelligent load box according to any one of claims 1 to 9, and a monitoring station, wherein: The monitoring station sends instructions to the smart load box, and the smart load box selects a matching load to perform a specified operation according to the received instructions, and transmits key data during the operation to the monitoring station.

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