Temperature control system for collector ring of phase modifier

Abstract

The invention discloses a temperature control system for a collector ring of a phase modifier, which relates to the technical field of electromechanical systems and comprises a temperature monitoring module, an intelligent control module, a temperature management module, a power monitoring module, an analysis and evaluation module and a safety adjustment module. The temperature monitoring module is electrically connected with the intelligent control module, and the temperature monitoring module is used for monitoring the temperature condition in the collecting ring and uploading the temperature to the intelligent control module; the intelligent control module is electrically connected with the temperature management module, the intelligent control module compares and analyzes the obtained temperature condition, and when the temperature is higher than a safe temperature threshold value, the temperature management module is controlled. The temperature of the collector ring is controlled by adopting the phase change material, the power of the collector ring is analyzed, the future trend is predicted, management control is carried out, the collector ring is assisted to control the temperature, the temperature of the collector ring is controlled in a dual-combination mode, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electromechanical systems, and in particular to a phase shifter collector ring temperature control system. Background Art

[0002] The phase condenser collector ring is an important component in the phase condenser. The phase condenser collector ring mainly plays the role of transmitting current and signals. It introduces the current of the external power supply into the rotor winding of the phase condenser, provides the excitation current for the phase condenser, and enables the phase condenser to generate reactive power to adjust the voltage and reactive power balance of the power system. At the same time, the collector ring can also transmit the signal of the phase condenser rotor to monitor and control the operating status of the phase condenser. In the prior art, the collector ring temperature control system mainly dissipates heat through the air cooling system, and the fan blows cold air to the collector ring to take away the heat. This The method has a simple structure, low cost and is widely used. However, the internal ventilation ducts of the equipment where the collector rings are located may absorb dust and debris due to long-term operation, resulting in blockage of the ventilation ducts and affecting the natural ventilation effect. For example, the ventilation grooves and ventilation holes on the surface of the collector rings are blocked, or the circulating fan has a reduced air volume due to failure, aging, etc., so that the heat generated by the collector rings cannot be dissipated in time, causing the temperature to rise. For collector rings that have been turned many times, if the height of the ventilation grooves on the surface is insufficient, the heat dissipation capacity will be further reduced. In this regard, we proposed a phase-shifting collector ring temperature control system. Summary of the invention

[0003] In order to solve the above technical problems, a phase regulator collector ring temperature control system is provided. This technical solution solves the above-mentioned problem of low air cooling heat dissipation efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a phase shifter collector ring temperature control system, including: a temperature monitoring module, an intelligent control module, a temperature management module, a power monitoring module, an analysis and evaluation module and a safety adjustment module;

[0005] The temperature monitoring module is electrically connected to the intelligent control module. The temperature monitoring module is used to monitor the temperature in the collector ring and upload the temperature to the intelligent control module.

[0006] The intelligent control module is electrically connected to the temperature management module. The intelligent control module compares and analyzes the acquired temperature conditions and controls the temperature management module when the temperature is higher than the safety temperature threshold.

[0007] The temperature management module cools down the temperature of the collector ring through the control of the intelligent control module to ensure stable working temperature;

[0008] The power monitoring module is used to monitor the working condition of the collector ring and upload the monitoring results to the analysis module;

[0009] The analysis and evaluation module pre-processes the acquired monitoring results, analyzes the relationship between the temperature and power of the collector ring, performs analysis and evaluation, obtains the working status and load of the collector ring, and determines whether the load is exceeded;

[0010] The safety adjustment module is electrically connected to the analysis and evaluation module. The safety adjustment module processes the results of the load analysis and evaluation, adjusts the collector rings that exceed the load, reduces the load, and assists in controlling and reducing the temperature of the collector rings.

[0011] Preferably, the temperature monitoring module performs temperature measurement based on a temperature sensor, and the temperature sensor is arranged at a key position of the collector ring to capture the temperature conditions at various positions of the collector ring, sense the temperature of the collector ring in real time, and transmit the temperature data to the intelligent control module in the form of an electrical signal.

[0012] Preferably, after the intelligent control module obtains the temperature condition, it obtains the safe operating temperature threshold range of the collector ring based on big data, compares the temperature with the safe operating temperature threshold, and checks whether it is greater than the safe operating temperature threshold. When it is greater than the safe operating temperature threshold, the intelligent control module sends an electrical signal to the temperature management module, which reacts and starts temperature control measures.

[0013] Preferably, the temperature management module controls the temperature based on the phase change material, selects the phase change material, customizes the phase change temperature of the phase change material according to the normal working temperature range of the collector ring, encapsulates the phase change material in a container, and installs it in a key position around the collector ring. After receiving the transmitted electrical signal in the intelligent control module, the phase change material transformation temperature is controlled;

[0014] When the temperature of the collector ring rises close to the phase change temperature of the phase change material, the phase change material changes from solid to liquid, absorbing the heat of the collector ring. When the temperature of the collector ring is too low, the phase change material changes from liquid back to solid, releasing the stored heat.

[0015] Preferably, the power monitoring module performs data collection based on the data acquisition unit to capture the power conditions of the collector ring when it is working. Within a period of time, multiple groups of data are collected to construct a data set, and the captured data are uploaded to the analysis and evaluation module for analysis; the analysis and evaluation unit analyzes the captured data and draws a scatter plot with temperature as the horizontal axis and power as the vertical axis to observe the relationship between temperature and power and calculate the correlation coefficient.

[0016] Preferably, the calculation formula of the correlation coefficient is:

[0017]

[0018] Where r is the correlation coefficient between temperature and load, n is the number of data points, T iis the temperature value of the ith data point, is the average temperature, P i is the power value of the ith data point, is the average value of power, where the correlation coefficient r ranges from -1 to 1. When it is close to 1, it indicates a positive correlation, and when it is close to -1, it indicates a negative correlation. Through calculation and exploration, it is found that the correlation coefficient is a positive correlation, that is, an increase in power leads to an increase in temperature, which is caused by the heat caused by the increase in current.

[0019] Preferably, after obtaining a linear relationship between temperature and power, the relationship between temperature and power is predicted by a linear regression model, and the formula is expressed as: P=aT+b, where P is the predicted power value, a and b are parameter values, and T is the temperature. The future trend of the collector ring is predicted based on the current formula to obtain the power situation of the collector ring in the future state.

[0020] Preferably, a threshold of the slip ring power is obtained based on an expert method, and the calculated future power value is compared with the threshold value. If the value is greater than the threshold value, it is judged that the future slip ring power has a load, and if the value is less than the threshold value, it is judged that the future slip ring power is normal.

[0021] The expert method for obtaining the threshold value step is to select knowledge experts, obtain the working parameter data of the collector ring, analyze and evaluate the data, and make a preliminary evaluation of the power threshold of the collector ring based on professional knowledge and experience. Combined with the evaluation results of different experts, a comprehensive analysis based on statistical methods is performed to obtain a specific power threshold range.

[0022] Preferably, the safety adjustment module predicts the future operating power value of the collector ring through temperature based on the monitoring results of the temperature monitoring module and the power monitoring module. When it is found that the load of the collector ring exceeds the safety range, the safety adjustment module takes action to reduce the load on the collector ring, including adjusting the operating parameters of the phase regulator, reducing the output power, optimizing the current distribution, and reducing the burden on the collector ring.

[0023] Preferably, the safety adjustment module and the temperature management module work together to enhance the heat dissipation effect of the collector ring. During the adjustment process, the status of the collector ring is continuously monitored and the adjustment effect is fed back in real time. If the adjustment measures fail to effectively reduce the load, further alarm measures will be taken and an alarm signal will be issued to remind the operator to intervene manually.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention controls the temperature of the collector ring by using phase change materials. The phase change process of the phase change material can provide a relatively stable temperature environment within a certain temperature range, reduce the impact of temperature fluctuations on the collector ring, and does not require additional energy input during the phase change process. It only relies on its own physical properties to absorb and release heat, thereby reducing the energy consumption of the temperature control system. As a passive temperature control method, the phase change material can still play a certain temperature control role in the event of system failure or power outage, thereby improving the reliability of the system. The power of the collector ring is analyzed to predict future trends, perform management and control, and assist the collector ring in controlling the temperature. The dual combination method is used to control the temperature of the collector ring and improve the efficiency of heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a framework diagram of the temperature control system of the present invention;

[0027] Figure 2 This is a flow chart of the collector ring temperature control of the present invention;

[0028] Figure 3 is a scatter plot between the temperature and power of the collector ring of the present invention;

[0029] Figure 4 This is a flow chart of the steps of the power monitoring module of the present invention;

[0030] Figure 5 A flowchart of the steps of obtaining a threshold value by the expert method of the present invention;

[0031] Figure 6 It is a flow chart of the steps of the temperature control system of the present invention. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] Reference Figures 1 to 6 As shown, the phase shifter collector ring temperature control system includes: a temperature monitoring module, an intelligent control module, a temperature management module, a power monitoring module, an analysis and evaluation module and a safety adjustment module;

[0034] The temperature monitoring module is electrically connected to the intelligent control module. The temperature monitoring module is used to monitor the temperature in the collector ring and upload the temperature to the intelligent control module.

[0035] The intelligent control module is electrically connected to the temperature management module. The intelligent control module compares and analyzes the acquired temperature conditions and controls the temperature management module when the temperature is higher than the safety temperature threshold.

[0036] The temperature management module cools down the temperature of the collector ring through the control of the intelligent control module to ensure stable working temperature;

[0037] The power monitoring module is used to monitor the working condition of the collector ring and upload the monitoring results to the analysis module;

[0038] The analysis and evaluation module pre-processes the acquired monitoring results, analyzes the relationship between the temperature and power of the collector ring, performs analysis and evaluation, obtains the working status and load of the collector ring, and determines whether the load is exceeded;

[0039] The safety adjustment module is electrically connected to the analysis and evaluation module. The safety adjustment module processes the results of the load analysis and evaluation, adjusts the collector rings that exceed the load, reduces the load, and assists in controlling and reducing the temperature of the collector rings.

[0040] The present application is controlled by the intelligent control module, and the temperature management module can timely and effectively cool down the temperature of the collector ring, which ensures that the collector ring always maintains a stable temperature during operation and avoids the impact of temperature fluctuations on equipment performance and life. The power monitoring module can monitor the working conditions of the collector ring in real time and upload the monitoring results to the analysis module, which enables the system to fully understand the power output and load change information of the collector ring, and provides rich data support for subsequent analysis and evaluation. The analysis and evaluation module analyzes the relationship between temperature and power, and can deeply understand the performance of the collector ring under different working conditions. Through this analysis, the working characteristics of the collector ring can be better grasped, providing a basis for optimizing system design and operation. Through analysis and evaluation, the module can determine whether the collector ring exceeds the load and discover potential failure risks in advance, which helps to take timely measures for adjustment and avoid equipment damage and system failures. The temperature monitoring module measures temperature based on temperature sensors. The temperature sensors are set at key positions of the collector ring to capture the temperature conditions of various positions of the collector ring, sense the temperature of the collector ring in real time, and transmit the temperature data to the intelligent control module in the form of electrical signals.

[0041] Reference Figure 2 As shown, after the intelligent control module obtains the temperature condition, it obtains the safe operating temperature threshold range of the collector ring based on big data, compares the temperature with the safe operating temperature threshold, and checks whether it is greater than the safe operating temperature threshold. When the temperature is greater than the safe operating temperature threshold, the intelligent control module sends an electrical signal to the temperature management module, which responds and starts temperature control measures.

[0042] This application utilizes big data analysis, and the intelligent control module can continuously learn and optimize the setting of temperature thresholds, and dynamically adjust with the use time of the collector ring, environmental changes, and different workload factors, thereby improving the adaptability and intelligence level of the system.

[0043] The temperature management module controls the temperature based on the phase change material, selects the phase change material, customizes the phase change temperature of the phase change material according to the normal working temperature range of the collector ring, encapsulates the phase change material in a container, and installs it at a key position around the collector ring. After receiving the electrical signal transmitted in the intelligent control module, the phase change material transformation temperature is controlled;

[0044] When the temperature of the collector ring rises close to the phase change temperature of the phase change material, the phase change material changes from solid to liquid, absorbing the heat of the collector ring. When the temperature of the collector ring is too low, the phase change material changes from liquid back to solid, releasing the stored heat.

[0045] The phase change material used in the present application is molten salt, which has high thermal conductivity and latent heat of phase change, and is suitable for temperature control of collector rings in high-temperature environments. The phase change temperature of the mixture of sodium nitrate and potassium nitrate is adjusted according to different proportions, which is suitable for the temperature control requirements of high-temperature collector rings. There are no mechanical parts in the phase change material temperature control system, and there is no problem of temperature control failure due to mechanical failure, which can improve the reliability and stability of the collector ring temperature control system and reduce the probability of equipment failure. The temperature control process of the phase change material is not affected by external environmental factors and has strong anti-interference ability, which enables the collector ring to maintain stable temperature control in a complex working environment, thereby improving the reliability and adaptability of the equipment.

[0046] Reference Figure 3 and Figure 4 As shown, the power monitoring module collects data based on the data acquisition unit to capture the power situation of the collector ring when it is working. Within a period of time, multiple groups of data are collected to build a data set, and the captured data are uploaded to the analysis and evaluation module for analysis; the analysis and evaluation unit analyzes the captured data and draws a scatter plot with temperature as the horizontal axis and power as the vertical axis to observe the relationship between temperature and power and calculate the correlation coefficient.

[0047] The formula for calculating the correlation coefficient is:

[0048]

[0049] Where r is the correlation coefficient between temperature and load, n is the number of data points, T i is the temperature value of the ith data point, is the average temperature, P i is the power value of the ith data point, is the average value of power, where the correlation coefficient r ranges from -1 to 1. When it is close to 1, it indicates a positive correlation, and when it is close to -1, it indicates a negative correlation. Through calculation and exploration, it is found that the correlation coefficient is a positive correlation, that is, an increase in power leads to an increase in temperature, which is caused by the heat caused by the increase in current.

[0050] The present application draws a scatter plot with temperature as the horizontal axis and power as the vertical axis, which can intuitively show the relationship between temperature and power. This visualization method makes complex data relationships clear at a glance, making it easier for analysts to quickly understand and discover the rules and trends therein. By calculating the correlation coefficient, the degree of linear correlation between temperature and power can be quantitatively evaluated, which provides an important reference indicator for further analysis of the working status of the collector ring, helps to determine the degree of influence of temperature on power, and predict and control the collector ring power under different temperature conditions.

[0051] After finding that there is a linear relationship between temperature and power, the relationship between temperature and power is predicted by a linear regression model. The formula is: P=aT+b, where P is the predicted power value, a and b are parameter values, and T is the temperature. Based on the current formula, the future trend of the collector ring is predicted to obtain the power situation of the collector ring in the future state.

[0052] This application predicts the relationship between temperature and power through a linear regression model, and can accurately grasp the power change trend of the collector ring at different temperatures. This enables operators to understand the future working status of the collector ring in advance and formulate a more scientific and reasonable plan for the operation and maintenance of the equipment.

[0053] The threshold of the collector ring power is obtained based on the expert method, and the calculated future power value is compared with the threshold. If it is greater than the threshold, it is judged that the collector ring power will be loaded in the future; if it is less than the threshold, it is judged that the collector ring power will be normal in the future.

[0054] Reference Figure 5 As shown, the expert method obtains the threshold value step by selecting knowledge experts, obtaining the working parameter data of the collector ring, analyzing and evaluating the data, and making a preliminary evaluation of the power threshold of the collector ring based on professional knowledge and experience. Combining the evaluation results of different experts, a comprehensive analysis is performed based on statistical methods to obtain a specific power threshold range.

[0055] According to the judgment result of the power threshold, this application can reasonably plan the maintenance work of the collector ring. If it is judged that the collector ring power will be normal in the future, maintenance can be carried out according to the regular maintenance plan; if it is judged that there is a load, the monitoring and maintenance of the collector ring can be strengthened, and timely measures can be taken to reduce the power or upgrade the equipment to ensure the safe operation of the collector ring.

[0056] The safety adjustment module predicts the future working power value of the collector ring based on the monitoring results of the temperature monitoring module and the power monitoring module. If the load of the collector ring is found to exceed the safety range, the safety adjustment module takes action to reduce the load on the collector ring, including adjusting the operating parameters of the phase regulator, reducing the output power, optimizing the current distribution, and reducing the burden on the collector ring.

[0057] The safety adjustment module and the temperature management module work together to enhance the heat dissipation effect of the collector ring. During the adjustment process, the status of the collector ring is continuously monitored and the adjustment effect is fed back in real time. If the adjustment measures fail to effectively reduce the load, further alarm measures will be taken and an alarm signal will be issued to remind the operator to intervene manually.

[0058] This application analyzes the power of the collector ring to predict future trends, conduct management and control, and assist the collector ring in controlling the temperature. A dual combination method is used to control the temperature of the collector ring and improve the efficiency of heat dissipation.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. The phase shifter collector ring temperature control system is characterized by: include: Temperature monitoring module, intelligent control module, temperature management module, power monitoring module, analysis and evaluation module and safety adjustment module; The temperature monitoring module is electrically connected to the intelligent control module. The temperature monitoring module is used to monitor the temperature in the collector ring and upload the temperature to the intelligent control module. The intelligent control module is electrically connected to the temperature management module. The intelligent control module compares and analyzes the acquired temperature conditions and controls the temperature management module when the temperature is higher than the safety temperature threshold. The temperature management module cools down the temperature of the collector ring through the control of the intelligent control module to ensure stable working temperature; The power monitoring module is used to monitor the working condition of the collector ring and upload the monitoring results to the analysis module; The analysis and evaluation module pre-processes the acquired monitoring results, analyzes the relationship between the temperature and power of the collector ring, performs analysis and evaluation, obtains the working status and load of the collector ring, and determines whether the load is exceeded; The safety adjustment module is electrically connected to the analysis and evaluation module. The safety adjustment module processes the results of the load analysis and evaluation, adjusts the collector rings that exceed the load, reduces the load, and assists in controlling and reducing the temperature of the collector rings.

2. The phase shifter collector ring temperature control system according to claim 1, characterized in that: The temperature monitoring module performs temperature measurement based on the temperature sensor. The temperature sensor is set at the key position of the collector ring to capture the temperature conditions of each position of the collector ring, sense the temperature of the collector ring in real time, and transmit the temperature data to the intelligent control module in the form of electrical signals.

3. The phase shifter collector ring temperature control system according to claim 1, characterized in that: After the intelligent control module obtains the temperature conditions, it obtains the safe operating temperature threshold range of the collector ring based on big data, compares the temperature with the safe operating temperature threshold, and checks whether it is greater than the safe operating temperature threshold. When it is greater than the safe operating temperature threshold, the intelligent control module sends an electrical signal to the temperature management module, which responds and starts temperature control measures.

4. The phase shifter collector ring temperature control system according to claim 1, characterized in that: The temperature management module controls the temperature based on the phase change material, selects the phase change material, customizes the phase change temperature of the phase change material according to the normal working temperature range of the collector ring, encapsulates the phase change material in a container, and installs it at a key position around the collector ring. After receiving the electrical signal transmitted in the intelligent control module, the phase change material transformation temperature is controlled; When the temperature of the collector ring rises close to the phase change temperature of the phase change material, the phase change material changes from solid to liquid, absorbing the heat of the collector ring. When the temperature of the collector ring is too low, the phase change material changes from liquid back to solid, releasing the stored heat.

5. The phase shifter collector ring temperature control system according to claim 1, characterized in that: The power monitoring module collects data based on the data acquisition unit to capture the power conditions of the collector ring when it is working. Within a period of time, multiple groups of data are collected to build a data set, and the captured data are uploaded to the analysis and evaluation module for analysis; the analysis and evaluation unit analyzes the captured data and draws a scatter plot with temperature as the horizontal axis and power as the vertical axis to observe the relationship between temperature and power and calculate the correlation coefficient.

6. The phase shifter collector ring temperature control system according to claim 5, characterized in that: The calculation formula of the correlation coefficient is: Where r is the correlation coefficient between temperature and load, n is the number of data points, T i is the temperature value of the ith data point, is the average temperature, P i is the power value of the ith data point, is the average value of power, where the correlation coefficient r ranges from -1 to 1. When it is close to 1, it indicates a positive correlation, and when it is close to -1, it indicates a negative correlation. Through calculation and exploration, it is found that the correlation coefficient is a positive correlation, that is, an increase in power leads to an increase in temperature, which is caused by the heat caused by the increase in current.

7. The phase regulator collector ring temperature control system according to claim 6, characterized in that: After finding that there is a linear relationship between temperature and power, the relationship between temperature and power is predicted by a linear regression model. The formula is: P=aT+b, where P is the predicted power value, a and b are parameter values, and T is the temperature. Based on the current formula, the future trend of the collector ring is predicted to obtain the power situation of the collector ring in the future state.

8. The phase regulator collector ring temperature control system according to claim 7, characterized in that: The threshold of the collector ring power is obtained based on the expert method, and the calculated future power value is compared with the threshold. If it is greater than the threshold, it is judged that the collector ring power will be loaded in the future; if it is less than the threshold, it is judged that the collector ring power will be normal in the future. The expert method for obtaining the threshold value step is to select knowledge experts, obtain the working parameter data of the collector ring, analyze and evaluate the data, and make a preliminary evaluation of the power threshold of the collector ring based on professional knowledge and experience. Combined with the evaluation results of different experts, a comprehensive analysis based on statistical methods is performed to obtain a specific power threshold range.

9. The phase shifter collector ring temperature control system according to claim 1, characterized in that: The safety adjustment module predicts the future working power value of the collector ring based on the monitoring results of the temperature monitoring module and the power monitoring module. If the load of the collector ring is found to exceed the safety range, the safety adjustment module takes action to reduce the load on the collector ring, including adjusting the operating parameters of the phase regulator, reducing the output power, optimizing the current distribution, and reducing the burden on the collector ring.

10. The phase shifter collector ring temperature control system according to claim 9, characterized in that: The safety adjustment module and the temperature management module work together to enhance the heat dissipation effect of the collector ring. During the adjustment process, the status of the collector ring is continuously monitored and the adjustment effect is fed back in real time. If the adjustment measures fail to effectively reduce the load, further alarm measures will be taken and an alarm signal will be issued to remind the operator to intervene manually.

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