An intelligent AC / DC integrated power supply system

Abstract

The present invention discloses an intelligent AC / DC integrated power supply system. The key technical solution comprises a test module and a plurality of power modules. The test module is configured with a test strategy. The test strategy includes the test module acquiring operating data of the power modules and performing simulation experiments based on the operating data to obtain experimental data. The experimental data is corrected by actual testing of the power modules. The test module performs simulation experiments on the power modules to obtain critical data and sends it to each power module. The power modules are configured with a voltage regulation strategy. The voltage regulation strategy includes the power module monitoring input voltage and input frequency values. Under the current input frequency value, if the input voltage value exceeds a preset controllable voltage range, the output voltage value of the power module is regulated. The integrated power supply system can adjust the voltage regulation accuracy according to changes in voltage regulation requirements and has strong adaptability.

Description

Technical Field

[0001] The present invention relates to the field of integrated power supplies, and more particularly to an intelligent AC / DC integrated power supply system. Background Art

[0002] An integrated power supply is a complete set of equipment that combines a DC power supply, an AC uninterruptible power supply (UPS) for power, an inverter power supply (INV) for power, a DC conversion power supply (DC / DC) for communications, and other devices into one, sharing a DC power battery pack and being monitored uniformly.

[0003] In integrated power supplies, AC power supplies, DC power supplies, UPS (uninterruptible power supplies), and communication power supplies all require stabilizing the current input from station transformers before outputting it. However, each power supply has different voltage regulation requirements and achievable voltage regulation accuracy. In existing integrated power supplies, the voltage regulation accuracy of each power supply is pre-designed, making it difficult to adjust to changing voltage regulation requirements and resulting in poor adaptability. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an intelligent AC / DC integrated power supply system, which can adjust the voltage regulation accuracy according to changes in voltage regulation requirements and has strong adaptability.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent AC / DC integrated power supply system, comprising a plurality of power supply modules, the system further comprising a test module; the test module is connected to each of the power supply modules, the test module is configured with a test strategy, the test strategy comprises the test module acquiring operating data of the power supply module, and performing a simulation experiment based on the operating data to obtain experimental data, the experimental data being corrected by actual testing of the power supply module, the operating data and the experimental data both comprising an input voltage value, an input frequency value, an output voltage value, and an output frequency value, the test module performing a simulation experiment on the power supply module based on the corrected experimental data to obtain critical data, and sending the critical data to each of the power supply modules, the critical data comprising a maximum critical value of input voltage and a minimum critical value of input voltage under different input frequency values, the maximum critical value of input voltage being the input voltage value when the output voltage value of the power supply module reaches a preset maximum voltage value, and the minimum critical value of input voltage being the input voltage value when the output voltage value of the power supply module reaches a preset minimum voltage value;

[0006] The power module is configured with a voltage regulation strategy, which includes the power module monitoring the input voltage value and the input frequency value. Under the current input frequency value, if the input voltage value exceeds a preset controllable voltage range, the output voltage value of the power module is regulated so that the output voltage value of the power module is not greater than a preset maximum voltage value and not less than a preset minimum voltage value; otherwise, no regulation is performed;

[0007] The maximum value and the minimum value of the controllable voltage range are calculated based on the maximum critical value of the input voltage, the minimum critical value of the input voltage and the input frequency through a preset voltage algorithm, and the maximum value and the minimum value of the controllable voltage range are positively correlated with the maximum critical value of the input voltage and the minimum critical value of the input voltage.

[0008] As a further improvement of the present invention, the voltage algorithm is configured as follows:

[0009]

[0010] Among them, U max is the maximum value of the controllable voltage range, U min is the minimum value of the controllable voltage range, U A is the maximum critical value of input voltage, U B is the minimum critical value of input voltage, E is the input frequency, E A , a, b are all preset constants, and 0 <a<0.3,0<b<0.3。

[0011] As a further improvement of the present invention, the integrated power supply system also includes a management module, and the power supply module is also configured with an abnormality monitoring strategy. The abnormality monitoring strategy includes the power supply module monitoring the input voltage value and the input frequency value. If it is monitored that the input voltage value is greater than the maximum critical value of the input voltage or less than the minimum critical value of the input voltage under the current input frequency value, the current moment is recorded, and the total number of records in the preset time period before the current moment is counted. If the number is greater than the preset abnormal number threshold, the power supply module generates an input voltage abnormality instruction and sends it to the management module. Otherwise, no input voltage abnormality instruction is generated.

[0012] As a further improvement of the present invention, the management module includes a management terminal and several operation and maintenance terminals. The management terminal is communicated with the operation and maintenance terminal and obtains the position of each operation and maintenance terminal in real time. After the management terminal receives the voltage abnormality instruction issued by the power supply module, it sends the voltage abnormality instruction to the operation and maintenance terminal closest to the operation and maintenance terminal.

[0013] As a further improvement of the present invention, the calculation formula of the maximum critical value of the input voltage is:

[0014] U A =c×[(U c +m)+n×(EE B )]+k

[0015] Among them, U A is the maximum critical value of the input voltage, U c is the maximum voltage value, E is the input frequency, and E B , c, m, n, k are all parameters.

[0016] As a further improvement of the present invention, the calculation formula of the minimum critical value of the input voltage is:

[0017] U B =d×[(U d +w)+h×(EE C )]+q

[0018] Among them, U B is the minimum critical value of the input voltage, U d is the maximum voltage value, E is the input frequency, and E C , d, w, h, and q are all parameters.

[0019] As a further improvement of the present invention, the operation and maintenance terminal is a mobile terminal.

[0020] The beneficial effects of the present invention are as follows: the test module can obtain the critical data of each power module through simulation experiments. When the voltage regulation demand changes, the management personnel can obtain the critical data of each power module under the current voltage regulation demand by changing the preset maximum voltage value and minimum voltage value, thereby obtaining the controllable voltage range of each power module, and the input current that exceeds the controllable voltage range can be automatically regulated and regulated by the voltage regulation strategy. Therefore, the integrated power supply system can adjust the voltage regulation accuracy according to the change of the voltage regulation demand, and has strong adaptability. The setting of the test strategy and the voltage regulation strategy can also effectively avoid the voltage of the output current after voltage regulation from exceeding the range between the preset minimum voltage value and the maximum voltage value, and can effectively improve the voltage regulation stability of the input current. In addition, each power module can be simulated and tested through the same test module, which reduces costs and is conducive to the realization of the same management of each power module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the framework structure of the present invention.

[0022] Figure numerals: 1. power module; 2. test module; 3. management module; 31. management terminal; 32. operation and maintenance terminal. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, wherein the same components are represented by the same reference numerals.

[0024] Reference Figure 1 As shown, an intelligent AC / DC integrated power supply system of this embodiment includes several power modules 1, a test module 2, and a management module 3. The several power modules 1 include an AC power module 1, a DC power module 1, a UPS uninterruptible power supply module 1, and a communication power module 1. The management module 3 includes a management terminal 31 and several operation and maintenance terminals 32. The management terminal 31 has a human-computer interaction interface to facilitate management operations. The operation and maintenance terminals 32 are mobile terminals, such as mobile phones and smart watches.

[0025] The test module 2 is connected to each of the power modules 1, and the test module 2 is configured with a test strategy. The test strategy includes the test module 2 obtaining the operating data of the power module 1, and performing a simulation experiment based on the operating data to obtain experimental data. The experimental data is corrected by the actual test of the power module 1. The operating data and the experimental data both include input voltage value, input frequency value, output voltage value and output frequency value. The test module 2 performs a simulation experiment on the power module 1 based on the corrected experimental data to obtain critical data, and sends the critical data to each of the power modules 1.

[0026] Specifically, test module 2 can test any power module 1. When testing a power module 1, test module 2 first obtains the operating data of power module 1 at regular intervals. After obtaining sufficient data, test module 2 calculates the parameters of the preset voltage stabilization algorithm based on the data. Experimental data is then calculated using the voltage stabilization algorithm. Field testing of this power module 1 is then performed to obtain field measurement data. The parameters of the voltage stabilization algorithm are then corrected based on the field measurement data, resulting in a more accurate voltage stabilization algorithm. The corrected voltage stabilization algorithm is then used to calculate critical data for this power module 1.

[0027] The critical data includes a maximum input voltage critical value and a minimum input voltage critical value at different input frequency values. The maximum input voltage critical value is the input voltage value when the output voltage value of the power supply module 1 reaches a preset maximum voltage value, and the minimum input voltage critical value is the input voltage value when the output voltage value of the power supply module 1 reaches a preset minimum voltage value. The administrator can obtain the corresponding critical data of each power supply module 1 by modifying the preset maximum voltage value and minimum voltage value, thereby obtaining the modified controllable voltage range at each input frequency.

[0028] The voltage stabilization algorithm includes a calculation formula for the maximum critical value of the input voltage and a calculation formula for the minimum critical value of the input voltage. The calculation formula for the maximum critical value of the input voltage is:

[0029] U A =c×[(U c +m)+n×(EE B )]+k

[0030] Among them, U A is the maximum critical value of the input voltage, U c is the maximum voltage value, E is the input frequency, and E B , c, m, n, k are all parameters.

[0031] The calculation formula for the minimum critical value of the input voltage is:

[0032] U B =d×[(U d +w)+h×(EE C )]+q

[0033] Among them, U B is the minimum critical value of the input voltage, U d is the maximum voltage value, E is the input frequency, and E C , d, w, h, and q are all parameters.

[0034] The power supply module 1 is configured with a voltage regulation strategy, which includes the power supply module 1 monitoring the input voltage value and the input frequency value. Under the current input frequency value, if the input voltage value exceeds the preset controllable voltage range, the output voltage value of the power supply module 1 is regulated so that the output voltage value of the power supply module 1 is not greater than the preset maximum voltage value and not less than the preset minimum voltage value. Otherwise, no regulation is performed.

[0035] Specifically, the power module 1 monitors the input voltage value and input frequency value in real time, and obtains the controllable voltage range at this time according to the input frequency value. If the input voltage value exceeds the controllable voltage range, the voltage module directly adjusts the output voltage value so that the output voltage value is between the maximum voltage value and the minimum voltage value, thereby ensuring the stability of the output voltage.

[0036] The maximum value and the minimum value of the controllable voltage range are calculated based on the maximum critical value of the input voltage, the minimum critical value of the input voltage and the input frequency through a preset voltage algorithm. The maximum value and the minimum value of the controllable voltage range are positively correlated with the maximum critical value of the input voltage and the minimum critical value of the input voltage, that is, when other conditions remain unchanged, the maximum critical value of the input voltage or the minimum critical value of the input voltage increases, and the maximum value and the minimum value of the controllable voltage range both increase.

[0037] The voltage algorithm is configured as follows:

[0038]

[0039] Among them, U max is the maximum value of the controllable voltage range, U min is the minimum value of the controllable voltage range, U A is the maximum critical value of input voltage, U B is the minimum critical value of input voltage, E is the input frequency, E A , a, b are all preset constants, and 0 <a<0.3,0<b<0.3。

[0040] The power supply module 1 is also configured with an abnormality monitoring strategy, which includes the power supply module 1 monitoring the input voltage value and the input frequency value. If it is monitored that the input voltage value is greater than the maximum critical value of the input voltage or less than the minimum critical value of the input voltage under the current input frequency value, the current moment is recorded and the total number of records in the preset time period before the current moment is counted. If the number is greater than the preset abnormal number threshold, the power supply module 1 generates an input voltage abnormality instruction and sends it to the management module 3. Otherwise, no input voltage abnormality instruction is generated.

[0041] The management terminal 31 is connected to the operation and maintenance terminal 32 for communication and obtains the position of each operation and maintenance terminal 32 in real time. After receiving the voltage abnormality instruction issued by the power module 1, the management terminal 31 sends the voltage abnormality instruction to the operation and maintenance terminal 32 closest to the operation and maintenance terminal 32.

[0042] Specifically, for example, the preset time period is 20 minutes, and the threshold value of the number of abnormalities is 5 times. The power supply module 1 monitors the input voltage value and the input frequency value in real time. If the input voltage value detected is greater than the maximum critical value of the input voltage, the current time is recorded, and the time recorded in the previous 20 minutes is obtained 5 times. If it reaches 5 times, an input voltage abnormality instruction is generated and sent to the management module 3. After receiving the voltage abnormality instruction, the management module 3 sends the voltage abnormality instruction to the nearest operation and maintenance terminal 32 based on the location information of each operation and maintenance terminal 32, so that the operation and maintenance personnel carrying the operation and maintenance terminal 32 can check the abnormal situation.

[0043] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An intelligent AC / DC integrated power supply system, comprising a plurality of power supply modules (1), characterized in that: The system further comprises a test module (2); the test module (2) is connected to each of the power modules (1), the test module (2) is configured with a test strategy, the test strategy comprises the test module (2) acquiring the operation data of the power module (1), and performing a simulation experiment based on the operation data to obtain experimental data, the experimental data being corrected by actual testing of the power module (1), the operation data and the experimental data both comprising an input voltage value, an input frequency value, an output voltage value, and an output frequency value, the test module (2) performing a simulation experiment on the power module (1) based on the corrected experimental data to obtain critical data, and sending the critical data to each of the power modules (1), the critical data comprising a maximum critical value of input voltage and a minimum critical value of input voltage under different input frequency values, the maximum critical value of input voltage being the input voltage value when the output voltage value of the power module (1) reaches a preset maximum voltage value, and the minimum critical value of input voltage being the input voltage value when the output voltage value of the power module (1) reaches a preset minimum voltage value; The power module (1) is configured with a voltage regulation strategy, wherein the voltage regulation strategy includes the power module (1) monitoring an input voltage value and an input frequency value, and regulating the output voltage value of the power module (1) so that the output voltage value of the power module (1) is not greater than a preset maximum voltage value and not less than a preset minimum voltage value under a current input frequency value, and otherwise no regulation is performed; The maximum value and the minimum value of the controllable voltage range are calculated based on the maximum critical value of the input voltage, the minimum critical value of the input voltage and the input frequency through a preset voltage algorithm, and the maximum value and the minimum value of the controllable voltage range are positively correlated with the maximum critical value of the input voltage and the minimum critical value of the input voltage.

2. The intelligent AC / DC integrated power supply system according to claim 1, characterized in that: The voltage algorithm is configured as follows: Among them, Umax is the maximum value of the controllable voltage range, Umin is the minimum value of the controllable voltage range, UA is the maximum critical value of the input voltage, UB is the minimum critical value of the input voltage, E is the input frequency, EA, a, and b are all preset constants, and 0 <a<0.3,0<b<0.3。 3. The intelligent AC / DC integrated power supply system according to claim 1, characterized in that: The integrated power supply system further comprises a management module (3), and the power supply module (1) is further configured with an abnormality monitoring strategy, wherein the abnormality monitoring strategy comprises the power supply module (1) monitoring the input voltage value and the input frequency value, and if it is detected that the input voltage value is greater than the input voltage maximum critical value or less than the input voltage minimum critical value under the current input frequency value, the current moment is recorded, and the total number of times recorded in a preset time period before the current moment is counted; if the number is greater than a preset abnormal number threshold, the power supply module (1) generates an input voltage abnormality instruction and sends it to the management module (3); otherwise, no input voltage abnormality instruction is generated.

4. The intelligent AC / DC integrated power supply system according to claim 3, characterized in that: The management module (3) includes a management terminal (31) and a plurality of operation and maintenance terminals (32). The management terminal (31) is connected to the operation and maintenance terminals (32) in communication and obtains the position of each of the operation and maintenance terminals (32) in real time. After receiving the voltage abnormality instruction issued by the power module (1), the management terminal (31) sends the voltage abnormality instruction to the operation and maintenance terminal (32) closest to the operation and maintenance terminal (32).

5. The intelligent AC / DC integrated power supply system according to claim 1, characterized in that: The calculation formula of the maximum critical value of the input voltage is: U A =c×[(U c +m)+n×(E-E B )]+k Wherein, UA is the maximum critical value of the input voltage, Uc is the maximum voltage value, E is the input frequency, and EB, c, m, n, and k are all parameters.

6. The intelligent AC / DC integrated power supply system according to claim 1, characterized in that: The calculation formula for the minimum critical value of the input voltage is: U B =d×[(U d +w)+h×(EE C )]+q Wherein, UB is the minimum critical value of the input voltage, Ud is the maximum voltage value, E is the input frequency, and EC, d, w, h, and q are all parameters.

7. The intelligent AC / DC integrated power supply system according to claim 4, characterized in that: The operation and maintenance terminal (32) is a mobile terminal.

Images