Power distribution system for power distribution cabinet

Abstract

The invention relates to the technical field of electric power, and discloses a power distribution system for a power distribution cabinet, which comprises a monitoring module, a distribution module, an adjusting module, a temperature control module and a protection module, and is characterized in that the monitoring module is used for monitoring the voltage of the power distribution cabinet in real time and outputting voltage data; the distribution module is used for obtaining a current distribution strategy by using an optimization algorithm according to the load demand and the voltage data; the adjusting module is used for adjusting current output according to the current distribution strategy output by the distribution module; the temperature control module is used for monitoring the temperature in the power distribution cabinet in real time, setting a temperature threshold value and starting the cooling system when the temperature exceeds the preset threshold value; the protection module is used for detecting whether an electrical fault exists in the power distribution cabinet and automatically cutting off a power supply. According to the invention, unnecessary energy waste can be reduced while a plurality of loads obtain the optimal power supply condition, the occurrence of power grid accidents is avoided, the safety and reliability of power utilization are effectively improved, and a large amount of resource consumption is saved.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, in particular to a power distribution system for a power distribution cabinet. Background Art

[0002] As modern electrical equipment becomes more and more popular, power supply reliability and safety has become an important issue. For traditional distribution cabinets, their interior is mainly composed of multiple terminals and some electrical components. The distribution cabinets on the market are mainly divided into two types: manual and automatic. Manual distribution cabinets are generally directly connected to the line by the operator and control switches and gates, while automatic distribution cabinets are mainly regulated by the control system.

[0003] Existing distribution cabinet systems are usually unable to provide efficient voltage and current monitoring, temperature control and comprehensive safety protection at the same time. Especially in terms of current regulation and temperature management, existing systems are often slow to respond and cannot adapt to rapidly changing grid conditions and ambient temperatures. They also lack sufficient fault prevention and diagnosis functions.

[0004] In view of this, we propose a power distribution system for a distribution cabinet. Summary of the invention

[0005] The object of the present invention is to provide a power distribution system for a power distribution cabinet to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A power distribution system for a power distribution cabinet, comprising a monitoring module, a distribution module, a regulating module, a temperature control module, and a protection module;

[0008] The monitoring module is used to monitor the voltage of the power distribution cabinet in real time and output voltage data;

[0009] The distribution module is used to obtain a current distribution strategy based on load demand and voltage data and using an optimization algorithm;

[0010] The regulating module is used to regulate the current output according to the current distribution strategy output by the distribution module;

[0011] The temperature control module is used to monitor the temperature inside the power distribution cabinet in real time and set a temperature threshold, and start the cooling system when the temperature exceeds the preset threshold;

[0012] The protection module is used to detect whether there is an electrical fault in the power distribution cabinet and automatically cut off the power supply.

[0013] Preferably, the monitoring module is provided with a voltage sensor and a data processor, the voltage sensor is used to detect voltage and convert the voltage signal into a digital signal, and the data processor is used to analyze voltage fluctuations and generate a voltage report.

[0014] Preferably, the distribution module is used to obtain a current distribution strategy based on load demand and voltage data using an optimization algorithm, specifically including:

[0015] Receive voltage data from the monitoring module and load demand data from the control center;

[0016] According to the voltage and load requirements, the current distribution strategy is obtained by using an optimization algorithm based on the preset priority and the urgency of each load;

[0017] The current distribution strategy is output to a regulation module.

[0018] Preferably, according to the voltage and load requirements, an optimization algorithm is used based on the preset priority and the urgency of each load to obtain a current distribution strategy, specifically:

[0019] Collect the current demand of each load i and the priority and urgency of the load;

[0020] Define an optimization objective function that considers the priority and urgency of each load;

[0021] Establish current distribution constraints, including total current limit and current limit for each load;

[0022] The optimization objective function is solved by genetic algorithm to obtain the current distribution strategy.

[0023] Preferably, the optimization objective function is: f = ∑ i (α×P i +β×E i )×D i , where D i represents the current demand of load i, E i Indicates the urgency of load i, P i represents the priority of load i, α and β are weight coefficients used to adjust the influence of priority and urgency.

[0024] Preferably, the regulating module receives the current distribution strategy output by the distribution module, and regulates the current by a calculation formula: Among them, I is current, V is voltage, and R is resistance.

[0025] Preferably, the current regulation module is provided with a controller based on a PID algorithm for optimizing the adjustment response of the current to achieve a smoother and more stable current output. The current regulation module is also provided with a current smoother for smoothing the current regulated by the actuator to reduce current fluctuations.

[0026] Preferably, the cooling system of the temperature control module automatically adjusts the coolant flow rate and the fan speed according to real-time temperature data. The cooling system includes multiple cooling channels, each of which can be independently controlled to optimize the cooling effect and automatically adjust the cooling demand according to the heat load of each part in the cabinet.

[0027] Preferably, the safety protection module is provided with a short circuit detector and a circuit breaker. The short circuit detector is used to monitor in real time whether a short circuit occurs in the circuit. The circuit breaker is used to cut off the power supply when a short circuit is detected. The safety protection module has a high-voltage protection mechanism. When the voltage exceeds the safety upper limit, an alarm signal is immediately sent and a safe power off is triggered.

[0028] Preferably, the safety protection module is also provided with an overload protection function, which automatically cuts off the power supply when the current exceeds a preset safety threshold. The overload protection function is combined with the real-time monitoring module to respond to possible electrical risks in a timely manner.

[0029] By means of the above technical solution, the present invention provides a power distribution system for a power distribution cabinet, which has at least the following beneficial effects:

[0030] The present invention can accurately adjust the power of each circuit according to the demand of the load, and can dynamically monitor the changes of various parameters such as current, voltage, etc. and make corresponding adjustments to ensure the stable operation of the system; the present invention can determine the optimal current distribution scheme under current conditions according to different load types, load importance, environment and other factors, thereby ensuring the normal operation of all electrical equipment in the entire power distribution system; the present invention can enable multiple loads to obtain the best power supply while reducing unnecessary energy waste, improving the stability of the system, avoiding the occurrence of power grid accidents, effectively improving the safety and reliability of electricity use, and saving a lot of resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention provides a power distribution system for a power distribution cabinet, comprising a monitoring module, a distribution module, a regulating module, a temperature control module, and a protection module;

[0035] The monitoring module is used to monitor the voltage of the power distribution cabinet in real time and output voltage data;

[0036] In this embodiment, the monitoring module is provided with a voltage sensor and a data processor. The voltage sensor is used to detect voltage and convert voltage signals into digital signals. The data processor is used to analyze voltage fluctuations and generate voltage reports. There are more than two monitoring modules distributed throughout the power grid and connected to protection modules respectively. The multiple monitoring modules can be independent of each other or connected as a whole by wired / wireless means.

[0037] The distribution module is used to obtain a current distribution strategy based on load demand and voltage data and using an optimization algorithm;

[0038] It should be noted that the real-time voltage and load demand from the load center are first obtained from the monitoring module, and then the two are combined to obtain the optimal solution based on the pre-set optimization rules. Finally, the result is passed to the controller to issue the action instructions for the switching device to complete the entire process of automated assembly line operation.

[0039] In this embodiment, the allocation module is used to obtain a current allocation strategy based on load demand and voltage data using an optimization algorithm, specifically including:

[0040] Receive voltage data from the monitoring module and load demand data from the control center;

[0041] According to the voltage and load requirements, the current distribution strategy is obtained by using an optimization algorithm based on the preset priority and the urgency of each load;

[0042] The current distribution strategy is output to a regulation module.

[0043] Specifically, according to the voltage and load requirements, an optimization algorithm is used based on the preset priority and the urgency of each load to obtain the current distribution strategy, which is specifically:

[0044] Collect the current demand of each load i and the priority and urgency of the load;

[0045] Define an optimization objective function that considers the priority and urgency of each load;

[0046] Establish current distribution constraints, including total current limit and current limit for each load;

[0047] The optimization objective function is solved by genetic algorithm to obtain the current distribution strategy.

[0048] Furthermore, the optimization objective function is: f = ∑ i (α×P i +β×E i )×D i , where D i represents the current demand of load i, E i Indicates the urgency of load i, P i represents the priority of load i, α and β are weight coefficients used to adjust the influence of priority and urgency.

[0049] It is worth noting that the weight coefficient can be determined according to actual conditions or experience, but usually the same default value will be assigned to maintain consistency and facilitate subsequent comparative studies. As a possible implementation form, the current distribution scheme obtained by the above optimization algorithm can be in two types of forms: dynamic or static: 1. The dynamic scheme refers to constantly changing its own posture over time to adapt to changes in actual conditions; 2. The static scheme is a one-time fixed correspondence that will not change easily unless it is impacted by a special event, which may cause a slight change, but this possibility is very low and can be basically ignored.

[0050] The regulating module is used to regulate the current output according to the current distribution strategy output by the distribution module;

[0051] In this embodiment, the regulating module receives the current distribution strategy output by the distribution module and adjusts the current by calculating the formula: Wherein, I is current, V is voltage, and R is resistance; the current regulation module is provided with a controller based on a PID algorithm for optimizing the adjustment response of the current and achieving a smoother and more stable current output. The current regulation module is also provided with a current smoother for smoothing the current regulated by the actuator and reducing current fluctuations.

[0052] The temperature control module is used to monitor the temperature inside the power distribution cabinet in real time and set a temperature threshold, and start the cooling system when the temperature exceeds the preset threshold;

[0053] In this embodiment, the cooling system of the temperature control module automatically adjusts the coolant flow rate and the fan speed according to real-time temperature data. The cooling system includes multiple cooling channels, each of which can be independently controlled to optimize the cooling effect and automatically adjust the cooling demand according to the heat load of each part in the cabinet.

[0054] The protection module is used to detect whether there is an electrical fault in the power distribution cabinet and automatically cut off the power supply.

[0055] In this embodiment, the safety protection module is provided with a short circuit detector and a circuit breaker. The short circuit detector is used to monitor in real time whether a short circuit occurs in the circuit. The circuit breaker is used to cut off the power supply when a short circuit is detected. The safety protection module has a high-voltage protection mechanism. When the voltage exceeds the safety upper limit, an alarm signal is immediately sent and a safe power off is triggered. The safety protection module is also provided with an overload protection function. When the current exceeds a preset safety threshold, the power supply is automatically cut off. The overload protection function is combined with the real-time monitoring module to respond to possible electrical risks in a timely manner.

[0056] It should be specifically noted that the monitoring module is generally installed in the control room of a distribution station or substation, and its main function is to monitor and record the working status and information of the distribution cabinet in real time; the distribution module is mainly used to make reasonable load configuration according to the current load condition and the maximum operating capacity of the power supply system, so that the power grid can effectively transmit electricity to meet the needs of users; the main function of the regulation module is to process the current distribution information sent by the distribution module, and adjust the phase difference between one or two of the three phases and the other two phases according to the preset calculation model, and superimpose different phasor currents to form the final bus current, so as to achieve the effect of precise control of shunt, thereby effectively avoiding accidents such as line overload or even damage caused by shunt; the temperature control module is mainly responsible for monitoring the internal temperature of the distribution cabinet. If the temperature is too high, the heat dissipation mechanism will cool it down, and it can be used in harsh environments; and the protection module is to promptly detect problems and take isolation measures to eliminate safety hazards, so as to ensure safe and stable operation.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution system for a power distribution cabinet, characterized in that: The system includes a monitoring module, a distribution module, a regulation module, a temperature control module, and a protection module; The monitoring module is used to monitor the voltage of the power distribution cabinet in real time and output voltage data; The distribution module is used to obtain a current distribution strategy based on load demand and voltage data and using an optimization algorithm; The regulating module is used to regulate the current output according to the current distribution strategy output by the distribution module; The temperature control module is used to monitor the temperature inside the power distribution cabinet in real time and set a temperature threshold, and start the cooling system when the temperature exceeds the preset threshold; The protection module is used to detect whether there is an electrical fault in the power distribution cabinet and automatically cut off the power supply.

2. A power distribution system for a power distribution cabinet according to claim 1, characterized in that: The monitoring module is provided with a voltage sensor and a data processor. The voltage sensor is used to detect voltage and convert the voltage signal into a digital signal. The data processor is used to analyze voltage fluctuations and generate a voltage report.

3. A power distribution system for a power distribution cabinet according to claim 1, characterized in that: The distribution module is used to obtain a current distribution strategy based on load demand and voltage data using an optimization algorithm, specifically including: Receive voltage data from the monitoring module and load demand data from the control center; According to the voltage and load requirements, the current distribution strategy is obtained by using an optimization algorithm based on the preset priority and the urgency of each load; The current distribution strategy is output to a regulation module.

4. A power distribution system for a power distribution cabinet according to claim 3, characterized in that: According to the voltage and load requirements, the current distribution strategy is obtained by using an optimization algorithm based on the preset priority and the urgency of each load, specifically: Collect the current demand of each load i and the priority and urgency of the load; Define an optimization objective function that considers the priority and urgency of each load; Establish current distribution constraints, including total current limit and current limit for each load; The optimization objective function is solved by genetic algorithm to obtain the current distribution strategy.

5. A power distribution system for a power distribution cabinet according to claim 4, characterized in that: The optimization objective function is: f = Σ i (α×P i +β×E i )×D i , where D i represents the current demand of load i, E i Indicates the urgency of load i, P i represents the priority of load i, α and β are weight coefficients used to adjust the influence of priority and urgency.

6. A power distribution system for a power distribution cabinet according to claim 1, characterized in that: The regulating module receives the current distribution strategy output by the distribution module and adjusts the current by the calculation formula: Among them, I is current, V is voltage, and R is resistance.

7. A power distribution system for a power distribution cabinet according to claim 1, characterized in that: The current regulation module is provided with a controller based on a PID algorithm for optimizing the adjustment response of the current and achieving a smoother and more stable current output. The current regulation module is also provided with a current smoother for smoothing the current regulated by the actuator and reducing current fluctuations.

8. The power distribution system for a power distribution cabinet according to claim 1, characterized in that: The cooling system of the temperature control module automatically adjusts the coolant flow rate and fan speed according to real-time temperature data. The cooling system includes multiple cooling channels, each of which can be independently controlled to optimize the cooling effect and automatically adjust the cooling demand according to the heat load of each part in the cabinet.

9. A power distribution system for a power distribution cabinet according to claim 1, characterized in that: The safety protection module is provided with a short circuit detector and a circuit breaker. The short circuit detector is used to monitor in real time whether a short circuit occurs in the circuit. The circuit breaker is used to cut off the power supply when a short circuit is detected. The safety protection module has a high-voltage protection mechanism. When the voltage exceeds the safety upper limit, an alarm signal is immediately sent and a safe power off is triggered.

10. A power distribution system for a power distribution cabinet according to claim 1, characterized in that: The safety protection module is also provided with an overload protection function, which automatically cuts off the power supply when the current exceeds a preset safety threshold. The overload protection function is combined with the real-time monitoring module to respond to possible electrical risks in a timely manner.

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