CN115800776A - Alternating current-direct current conversion system of planar transformer based on high-magnetism new material - Google Patents

Alternating current-direct current conversion system of planar transformer based on high-magnetism new material Download PDF

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CN115800776A
CN115800776A CN202310044471.1A CN202310044471A CN115800776A CN 115800776 A CN115800776 A CN 115800776A CN 202310044471 A CN202310044471 A CN 202310044471A CN 115800776 A CN115800776 A CN 115800776A
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current
planar transformer
surge
conversion
data
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CN115800776B (en
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张文根
张帝
谢春晖
张辉
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Hunan Lidar Intelligent Technology Co ltd
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Hunan Lidar Intelligent Technology Co ltd
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Abstract

The invention relates to an alternating current-direct current conversion system of a planar transformer based on a high-magnetism new material, which relates to the technical field of planar transformers.

Description

Alternating current-direct current conversion system of planar transformer based on high-magnetism new material
Technical Field
The invention relates to the technical field of planar transformers, in particular to an alternating current-direct current conversion system of a planar transformer based on a high-magnetic new material.
Background
The planar transformer used as a transformation device applied to small-sized devices has the characteristics of low shape, small height, high working frequency and the like, and the existing planar transformer still has defects in the process of alternating current-direct current conversion, such as the proximity effect and skin effect of current caused by the ultrahigh frequency of the planar transformer, and the surge phenomenon caused by sudden voltage and current in the transformation process.
Chinese patent publication No.: CN108335879A discloses a planar transformer, an electronic device and a method for manufacturing the planar transformer. The planar transformer comprises a first magnetic core, at least one PCB winding, at least one flat coil and a second magnetic core, wherein the first magnetic core, each PCB winding in the at least one PCB winding, each flat coil in the at least one flat coil and the second magnetic core are coaxially assembled into the planar transformer. On one hand, the PCB winding and the flat coil are used as the primary/secondary coil, so that the PCB winding and the flat coil have stronger overcurrent capacity compared with the traditional winding coil. On the other hand, when the primary/secondary coil with more turns needs to be designed, because the turns of the flat coil can be transversely increased/decreased, the flat coil can relatively avoid the need of assembling multiple layers of primary/secondary coils, thereby reducing the proximity effect and parasitic capacitance, improving the power density and reducing the temperature rise; therefore, the planar transformer has the problem that the transformation efficiency of the planar transformer in the transformation process is low because the transformation process of the planar transformer cannot be accurately controlled.
Disclosure of Invention
Therefore, the invention provides an alternating current-direct current conversion system of a planar transformer based on a high-magnetism new material, which is used for solving the problem that the transformation efficiency of the planar transformer in the transformation process is low because the transformation process of the planar transformer cannot be accurately controlled in the prior art.
In order to achieve the above object, the present invention provides an ac/dc conversion system of a planar transformer based on a new high magnetic material, comprising:
the data acquisition module comprises a current acquisition unit for acquiring input current monitored by a current sensor arranged at the input end of the planar transformer, a voltage acquisition unit for acquiring output voltage monitored by a voltage sensor arranged at the output end of the planar transformer and a surge parameter acquisition unit for acquiring surge current and pulse frequency of a surge protector arranged at the front end of the planar transformer under a first preset condition;
the historical data storage module is used for storing historical pulse frequency data of a surge protector and historical rectification data of a rectifier when the planar transformer is subjected to alternating current-direct current conversion;
the data analysis module comprises a surge analysis unit, a rectification determination unit, a transformation analysis unit and a data adjustment unit, wherein the surge analysis unit is used for judging whether a surge phenomenon exists in the planar transformer during alternating current-direct current conversion according to the ratio of the input current to the surge current, the rectification determination unit is connected with the surge analysis unit and is used for judging the analysis result of the surge analysis unit to determine whether the output current of the planar transformer is rectified, the transformation analysis unit is connected with the historical data storage module and is used for judging the voltage variation of the output voltage during a preset time period under a second preset condition to determine the transformation stability of the planar transformer during alternating current-direct current conversion, and the data adjustment unit is respectively connected with the rectification determination unit and the transformation analysis unit and is used for adjusting the output current determined by the rectification determination unit according to the analysis result of the transformation analysis unit;
and the control execution module comprises a first control execution unit which is connected with the rectification determination unit and used for controlling the rectifier to rectify according to the output current determined by the rectification determination unit, and a second control execution unit which is connected with the transformation analysis unit and used for controlling the rectifier and the surge protector to adjust the parameters of the plane transformation in the alternating current-direct current conversion according to the adjustment mode determined by the data adjustment unit.
The novel high-magnetic material is a high-magnetic conductivity material, and particularly a ferromagnetic material with the magnetic conductivity of more than 2 power of 10. Also known as soft magnetic material. The material has high magnetic conductivity, high saturation magnetic induction, high resistance, low loss and good stability.
Furthermore, a pulse frequency standard Q0 of a surge phenomenon is arranged in the surge parameter acquisition unit, the surge parameter acquisition unit determines whether the plane transformer reaches a first preset condition during AC/DC conversion according to a comparison result of the pulse frequency Q of a surge protector arranged at the front end of the plane transformer and the pulse frequency standard Q0,
if Q is larger than or equal to Q0, the surge parameter acquisition unit determines that the planar transformer reaches a first preset condition during AC/DC conversion;
and if Q is less than Q0, the surge parameter acquisition unit determines that the planar transformer does not reach a first preset condition during AC/DC conversion.
Furthermore, a current difference standard C0 is set in the surge analysis unit, the surge analysis unit judges a comparison result of the current difference C between the input current I1 and the surge current I0 and the current difference standard to determine whether a surge phenomenon exists in the planar transformer during AC/DC conversion, and sets C = I0-I1,
if C is larger than or equal to C0, the surge analysis unit determines that the planar transformer has a surge phenomenon during alternating current-direct current conversion;
and if C is less than C0, the surge analysis unit determines that the planar transformer has no surge phenomenon during alternating current-direct current conversion.
Further, the rectification determining unit determines to rectify the output current of the planar transformer under the condition that the surge analyzing unit determines that the planar transformer has a surge phenomenon during alternating current-direct current conversion, and simultaneously calculates the percentage R of the current difference C and a preset power difference C0, compares R with a first percentage standard R1 and a second percentage standard R2 in the rectification determining unit to determine a current adjustment coefficient for the rectifier to rectify the output current, and sets R1 < R2,
if R is less than or equal to R1, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K1;
if R1 is larger than R and smaller than or equal to R2, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K2;
if R is larger than R2, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K3;
wherein, R = C/C0 × 100%, K3 < 0.8 < K2 < K1 < 1.
Furthermore, a preset voltage variation delta U0 is arranged in the transformation analysis unit, the transformation analysis unit determines the voltage variation delta U of the output voltage in a preset time t under a second preset condition, and determines a comparison result between the voltage variation delta U and the preset voltage variation delta U0 to determine whether the transformation stability of the planar transformer during alternating current-direct current conversion meets a standard or not,
if delta U is larger than delta U0, the transformation analysis unit determines that the transformation stability does not meet the standard, and meanwhile, the data adjustment unit determines an average adjustment coefficient Kp of output current rectification in the historical rectification data so as to judge the adjustment mode of the planar transformer during alternating current-direct current conversion;
and if the delta U is less than or equal to the delta U0, the transformation analysis unit determines that the transformation stability meets the standard.
In the embodiment of the present invention, the preset time period t in the embodiment of the present invention may be flexibly set according to actual requirements of those skilled in the art, which is not limited in the present invention.
Furthermore, the transformation analysis unit is also provided with a historical pulse frequency mean value standard Yj, the transformation analysis unit compares the historical pulse frequency mean value Y with the historical pulse frequency mean value standard Yj to judge whether the planar transformer meets a second preset condition during alternating current-direct current conversion,
if Y is larger than or equal to Yj, the transformation analysis unit determines that the planar transformer meets a second preset condition during alternating current-direct current conversion;
and if Y is less than Yj, the transformation analysis unit determines that the planar transformer does not accord with a second preset condition during alternating current-direct current conversion.
Further, the data adjusting unit is provided with a first average adjusting coefficient Kp1 and a second average adjusting coefficient Kp2, the data adjusting unit compares the average adjusting coefficients Kp and Kp1 with Kp2 respectively to determine the adjusting mode, kp1 is set to be less than Kp2,
if Kp is less than or equal to Kp1, the data adjusting unit determines that the adjustment of the planar transformer during the alternating current-direct current conversion is not performed;
if Kp1 is more than Kp and less than or equal to Kp2, the data adjusting unit determines that the adjusting mode of the planar transformer during alternating current-direct current conversion is to adjust the current of the output end;
if Kp is larger than Kp2, the data adjusting unit determines that the adjusting mode of the planar transformer during alternating current-direct current conversion is to adjust the voltage of the input end.
Further, the data adjusting unit determines to adjust the output end current to a corresponding value according to a comparison result of a first ratio Ba of the average adjustment coefficients Kp and Kp1 and a preset ratio, wherein the preset ratio includes a first preset ratio B1 and a second preset ratio B2, B1 is set to be less than B2, and Ba = Kp/Kp1,
if Ba is less than or equal to B1, the data adjusting unit adjusts the current of the output end to Ij, and Ij = I1 × e1;
if B1 is larger than Ba and is not larger than B2, the data adjusting unit adjusts the current of the output end to Ij, and Ij = I1 × e2 is set;
if Ba > B2, the data adjusting unit adjusts the output end current to Ij, setting Ij = I1 × e3;
wherein e1 is a first current regulation coefficient, e2 is a second current regulation coefficient, and e3 is a third current regulation coefficient, and e3 is more than 0.7 and less than e2 and less than e1 and less than 1.
Further, the data adjusting unit determines to adjust the output end current to a corresponding value according to a comparison result of a second ratio Bb of the average adjusting coefficients Kp and Kp2 and a preset ratio, and sets Ba = Kp/Kp2,
if Bb is less than or equal to B1, the data adjusting unit adjusts the current of the output end to Uj, and Uj = Uxf 1;
if B1 is larger than Bb and is smaller than or equal to B2, the data adjusting unit adjusts the current of the output end to Uj, and Uj = Uxf 2 is set;
if Bb > B2, the data adjusting unit adjusts the output end current to Uj, and sets Uj = uxf 3;
wherein f1 is a first current regulation coefficient, f2 is a second current regulation coefficient, f3 is a third current regulation coefficient, and e1 is greater than 1, e2 is greater than e3, and 1.2 is set.
Further, the first control execution unit sends an instruction to the rectifier to cause the rectifier to adjust the output current to I1 × Ki by the adjustment coefficient, setting I =1,2,3; the second control execution unit sends an instruction to the rectifier to cause the rectifier to adjust the output current to Ij or sends an instruction to the surge protector to cause the surge protector to adjust the input voltage to Uj.
Compared with the prior art, the invention has the beneficial effects that the data acquisition module for acquiring the current and voltage data of the planar transformer, the data analysis module for analyzing the current and voltage data acquired by the data acquisition module and the control execution module for controlling the planar transformer to transform according to the analysis result of the data analysis module are arranged in the planar transformer, and the accuracy of the control of the transformation process of the planar transformer is improved and the transformation efficiency of the planar transformer is further improved by acquiring the current of the planar transformer and the current of the output end and determining whether the output current of the transformer reaches the standard or not according to the current difference value of the two currents.
Particularly, the historical storage module is arranged to store historical pulse frequency data of a surge protector at the front end of the planar transformer and historical rectification data of a rectifier at the rear end of the planar transformer, historical surge phenomena of the planar transformer are analyzed through the historical pulse data, transformation parameters of the planar transformer during real-time alternating current-direct current conversion are adjusted through an analysis result to ensure the stability of the planar transformer, the historical rectification data are analyzed, transformation parameters of the planar transformer during real-time alternating current-direct current conversion are adjusted through the analysis result to ensure the stability of the planar transformer, the accuracy of control over the transformation process of the planar transformer is further improved, and the transformation efficiency of the planar transformer is further improved.
Furthermore, the pulse frequency standard of the surge phenomenon is set in the surge analysis unit of the data analysis module, so that the surge analysis unit determines the stability of parameters of the planar transformer during alternating current-direct current conversion according to the comparison result of the pulse frequency of the surge protector and the pulse frequency standard, the accuracy of the control over the transformation process of the planar transformer is further improved, and the transformation efficiency of the planar transformer is further improved.
Furthermore, the percentage standard is set in the rectification determining unit of the data analysis module, so that the data current of the planar transformer is rectified when the planar transformer generates the AC/DC conversion in real time and the surge phenomenon occurs, the stability of the planar transformer during the AC/DC conversion is ensured, the accuracy of controlling the transformation process of the planar transformer is further improved, and the transformation efficiency of the planar transformer is further improved.
Drawings
Fig. 1 is a logic block diagram of an ac-dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention;
fig. 2 is a logic block diagram of a data acquisition module in an ac/dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention;
fig. 3 is a logic block diagram of a data analysis module in an ac/dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention;
fig. 4 is a logic block diagram of a control execution module in an ac/dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principles of the present invention, and do not limit the scope of the present invention.
It should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" in the description of the invention are to be construed broadly and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 4, fig. 1 is a logic block diagram of an ac/dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention; fig. 2 is a logic block diagram of a data acquisition module in an ac/dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention; fig. 3 is a logic block diagram of a data analysis module in an ac/dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention; fig. 4 is a logic block diagram of a control execution module in an ac/dc conversion system of a planar transformer based on a high-magnetic new material according to an embodiment of the present invention.
The embodiment of the invention relates to an alternating current-direct current conversion system of a planar transformer based on a high-magnetism new material, which comprises the following steps:
the data acquisition module comprises a current acquisition unit for acquiring input current monitored by a current sensor arranged at the input end of the planar transformer under a first preset condition, a voltage acquisition unit for acquiring output voltage monitored by a voltage sensor arranged at the output end of the planar transformer, and a surge parameter acquisition unit for acquiring surge current and pulse frequency of a surge protector arranged at the front end of the planar transformer;
the historical data storage module is used for storing historical pulse frequency data of a surge protector and historical rectification data of a rectifier when the planar transformer is subjected to alternating current-direct current conversion;
the data analysis module is connected with the data acquisition module and comprises a surge analysis unit, a rectification determination unit, a transformation analysis unit and a data adjustment unit, wherein the surge analysis unit is used for judging whether a surge phenomenon exists in the planar transformer during alternating current-direct current conversion according to the ratio of the input current to the surge current, the rectification determination unit is connected with the surge analysis unit and is used for judging the analysis result of the surge analysis unit so as to determine whether the output current of the planar transformer is rectified, the transformation analysis unit is connected with the historical data storage module and is used for judging the voltage variation of the output voltage during a preset time period under a second preset condition so as to determine the transformation stability of the planar transformer during alternating current-direct current conversion, and the data adjustment unit is respectively connected with the rectification determination unit and the transformation analysis unit and is used for adjusting the output current determined by the rectification determination unit according to the analysis result of the transformation analysis unit;
and the control execution module comprises a first control execution unit which is connected with the rectification determination unit and used for controlling the rectifier to rectify according to the output current determined by the rectification determination unit, and a second control execution unit which is connected with the transformation analysis unit and used for controlling the rectifier and the surge protector to adjust the parameters of the plane transformation in the alternating current-direct current conversion according to the adjustment mode determined by the data adjustment unit.
Specifically, the surge parameter acquisition unit is provided with a pulse frequency standard Q0 of a surge phenomenon, the surge parameter acquisition unit determines whether the planar transformer reaches a first preset condition during AC/DC conversion according to a comparison result of the pulse frequency Q of a surge protector arranged at the front end of the planar transformer and the pulse frequency standard Q0,
if Q is larger than or equal to Q0, the surge parameter acquisition unit determines that the planar transformer reaches a first preset condition during alternating current-direct current conversion;
and if Q is less than Q0, the surge parameter acquisition unit determines that the planar transformer does not reach a first preset condition during AC/DC conversion.
Specifically, a current difference standard C0 is set in the surge analysis unit, the surge analysis unit determines a comparison result between the current difference C of the input current I1 and the surge current I0 and the current difference standard to determine whether a surge phenomenon occurs in the planar transformer during ac/dc conversion, C = I0-I1 is set,
if C is larger than or equal to C0, the surge analysis unit determines that the planar transformer has a surge phenomenon during AC/DC conversion;
and if C is less than C0, the surge analysis unit determines that the planar transformer has no surge phenomenon during alternating current-direct current conversion.
Specifically, the rectification determining unit determines to rectify the output current of the planar transformer under the condition that the surge analyzing unit determines that the planar transformer has a surge phenomenon during alternating current-direct current conversion, calculates the percentage R of the current difference C and a preset power difference C0, compares R with a first percentage standard R1 and a second percentage standard R2 in the rectification determining unit to determine a current adjustment coefficient for the rectifier to rectify the output current, and sets R1 < R2,
if R is less than or equal to R1, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K1;
if R1 is larger than R and is smaller than or equal to R2, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K2;
if R is larger than R2, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K3;
wherein, R = C/C0 × 100%, K3 < 0.8 < K2 < K1 < 1.
Specifically, a preset voltage variation Δ U0 is set in the voltage transformation analyzing unit, the voltage transformation analyzing unit determines the voltage variation Δ U of the output voltage in a preset time t under a second preset condition, and determines a comparison result between the voltage variation Δ U and the preset voltage variation Δ U0 to determine whether the transformation stability of the planar transformer during ac/dc conversion meets a standard,
if delta U is larger than delta U0, the transformation analysis unit determines that the transformation stability does not meet the standard, and meanwhile, the data adjustment unit determines an average adjustment coefficient Kp of output current rectification in the historical rectification data so as to judge the adjustment mode of the planar transformer during alternating current-direct current conversion;
and if the delta U is less than or equal to the delta U0, the transformation analysis unit determines that the transformation stability meets the standard.
In the embodiment of the invention, the average adjustment coefficient is the average value of the adjustment coefficients in the historical rectification data during several times of rectification.
In the embodiment of the invention, the voltage transformation quantity is the fluctuation of the voltage at the output end of the planar transformer in the alternating current-direct current conversion process.
Specifically, the transformation analysis unit is further provided with a historical pulse frequency average value standard Yj, compares the historical pulse frequency average value Y with the historical pulse frequency average value standard Yj to determine whether the planar transformer meets a second preset condition during AC/DC conversion,
if Y is larger than or equal to Yj, the transformation analysis unit determines that the planar transformer meets a second preset condition during alternating current-direct current conversion;
and if Y is less than Yj, the transformation analysis unit determines that the planar transformer does not meet a second preset condition during alternating current-direct current conversion.
In the embodiment of the invention, the historical pulse frequency average value is an average value of a plurality of historical pulse frequencies.
Specifically, the data adjusting means is provided with a first average adjustment coefficient Kp1 and a second average adjustment coefficient Kp2, the data adjusting means compares the average adjustment coefficients Kp and Kp1 with Kp2 to determine the adjustment mode, and sets Kp1 < Kp2,
if Kp is less than or equal to Kp1, the data adjusting unit determines that the adjustment of the planar transformer during the alternating current-direct current conversion is not performed;
if Kp1 is more than Kp and less than or equal to Kp2, the data adjusting unit determines that the adjusting mode of the planar transformer during alternating current-direct current conversion is to adjust the current of the output end;
if Kp is larger than Kp2, the data adjusting unit determines that the adjusting mode of the planar transformer during alternating current-direct current conversion is to adjust the voltage of the input end.
Specifically, the data adjusting unit determines to adjust the output end current to a corresponding value according to a comparison result of a first ratio Ba and a preset ratio of the average adjustment coefficients Kp and Kp1, wherein the preset ratio includes a first preset ratio B1 and a second preset ratio B2, B1 is set to be less than B2, and Ba = Kp/Kp1,
if Ba is less than or equal to B1, the data adjusting unit adjusts the current of the output end to Ij, ij = I1 × e1;
if B1 is larger than Ba and is not larger than B2, the data adjusting unit adjusts the current of the output end to Ij, and Ij = I1 × e2 is set;
if Ba > B2, the data adjusting unit adjusts the output end current to Ij, setting Ij = I1 × e3;
wherein e1 is a first current regulation coefficient, e2 is a second current regulation coefficient, and e3 is a third current regulation coefficient, and e3 is more than 0.7 and less than e2 and less than e1 and less than 1.
Specifically, the data adjusting unit determines to adjust the output end current to a corresponding value according to a comparison result of a second ratio Bb of the average adjustment coefficients Kp and Kp2 and a preset ratio, sets Ba = Kp/Kp2,
if Bb is less than or equal to B1, the data adjusting unit adjusts the current of the output end to Uj, and Uj = Uxf 1;
if B1 is larger than Bb and is not larger than B2, the data adjusting unit adjusts the current of the output end to Uj, and Uj = Uxf 2 is set;
if Bb > B2, the data adjusting unit adjusts the output end current to Uj, and sets Uj = uxf 3;
wherein f1 is a first current regulation coefficient, f2 is a second current regulation coefficient, and f3 is a third current regulation coefficient, and e1 is more than 1 and less than e2 and less than e3 and less than 1.2 are set.
Specifically, the first control execution unit sends an instruction to the rectifier to cause the rectifier to adjust the output current to I1 × Ki by the adjustment coefficient, setting I =1,2,3; the second control execution unit sends an instruction to the rectifier to cause the rectifier to adjust the output current to Ij or sends an instruction to the surge protector to cause the surge protector to adjust the input voltage to Uj.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an alternating current-direct current conversion system of planar transformer based on high magnetism new material which characterized in that includes:
the data acquisition module comprises a current acquisition unit for acquiring input current monitored by a current sensor arranged at the input end of the planar transformer under a first preset condition, a voltage acquisition unit for acquiring output voltage monitored by a voltage sensor arranged at the output end of the planar transformer, and a surge parameter acquisition unit for acquiring surge current and pulse frequency of a surge protector arranged at the front end of the planar transformer;
the historical data storage module is used for storing historical pulse frequency data of a surge protector and historical rectification data of a rectifier when the planar transformer is subjected to alternating current-direct current conversion;
the data analysis module is connected with the data acquisition module and comprises a surge analysis unit used for judging whether a surge phenomenon exists in the planar transformer during alternating current-direct current conversion according to the comparison result of the input current and the surge current, a rectification determination unit connected with the surge analysis unit and used for judging the analysis result of the surge analysis unit to determine whether the output current of the planar transformer is rectified, a transformation analysis unit connected with the historical data storage module and used for judging the voltage variation of the output voltage during a preset time period under a second preset condition to determine the transformation stability of the planar transformer during alternating current-direct current conversion, and a data adjustment unit respectively connected with the rectification determination unit and the transformation analysis unit and used for adjusting the output current determined by the rectification determination unit according to the analysis result of the transformation analysis unit;
and the control execution module comprises a first control execution unit which is connected with the rectification determination unit and used for controlling the rectifier to rectify according to the output current determined by the rectification determination unit, and a second control execution unit which is connected with the transformation analysis unit and used for controlling the rectifier and the surge protector to adjust the parameters of the plane transformation in the alternating current-direct current conversion according to the adjustment mode determined by the data adjustment unit.
2. The AC-DC conversion system of the planar transformer based on the high-magnetic new material as claimed in claim 1, wherein the surge parameter collecting unit is provided with a pulse frequency standard Q0 for surge phenomenon, the surge parameter collecting unit determines whether the planar transformer reaches a first preset condition during AC-DC conversion according to the comparison result between the pulse frequency Q of the surge protector provided at the front end of the planar transformer and the pulse frequency standard Q0,
if Q is larger than or equal to Q0, the surge parameter acquisition unit determines that the planar transformer reaches a first preset condition during AC/DC conversion;
and if Q is less than Q0, the surge parameter acquisition unit determines that the planar transformer does not reach a first preset condition during AC/DC conversion.
3. The AC-DC conversion system of the planar transformer based on the high-magnetic new material as claimed in claim 2, wherein a current difference standard C0 is set in the surge analysis unit, the comparison result between the current difference C of the input current I1 and the surge current I0 and the current difference standard is judged by the surge analysis unit to determine whether the planar transformer has a surge phenomenon during AC-DC conversion, and C = I0-I1 is set,
if C is larger than or equal to C0, the surge analysis unit determines that the planar transformer has a surge phenomenon during AC/DC conversion;
and if C is less than C0, the surge analysis unit determines that the planar transformer has no surge phenomenon during alternating current-direct current conversion.
4. The AC-DC conversion system for planar transformer based on high magnetic new material according to claim 3, wherein the rectification determining unit determines to rectify the output current of the planar transformer under the condition that the surge analyzing unit determines that the planar transformer has a surge phenomenon during AC-DC conversion, and calculates the percentage R of the current difference C and the preset power difference C0 and compares R with the first percentage standard R1 and the second percentage standard R2 in the rectification determining unit to determine the current adjustment coefficient for the rectifier to rectify the output current, and sets R1 < R2,
if R is less than or equal to R1, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K1;
if R1 is larger than R and smaller than or equal to R2, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K2;
if R is larger than R2, the rectification determining unit determines that the adjustment coefficient of the output current rectification is K3;
wherein, R = C/C0 × 100%, K3 < 0.8 < K2 < K1 < 1.
5. The AC-DC conversion system of the planar transformer based on the new high-magnetic material as claimed in claim 4, wherein a preset voltage variation Δ U0 is set in the transformation analysis unit, the transformation analysis unit determines the voltage variation Δ U of the output voltage for a preset time t under a second preset condition, and determines the comparison result between the voltage variation Δ U and the preset voltage variation Δ U0 to determine whether the transformation stability of the planar transformer during AC-DC conversion meets a standard or not,
if delta U is larger than delta U0, the transformation analysis unit determines that the transformation stability does not meet the standard, and meanwhile, the data adjustment unit determines an average adjustment coefficient Kp of output current rectification in the historical rectification data so as to judge the adjustment mode of the planar transformer during alternating current-direct current conversion;
and if the delta U is less than or equal to the delta U0, the transformation analysis unit determines that the transformation stability meets the standard.
6. The AC-DC conversion system of the planar transformer based on the high-magnetic new material as claimed in claim 5, wherein the transformation analysis unit further includes a historical pulse frequency mean value standard Yj, and the transformation analysis unit compares the historical pulse frequency mean value Y with the historical pulse frequency mean value standard Yj to determine whether the planar transformer meets a second preset condition during AC-DC conversion,
if Y is larger than or equal to Yj, the transformation analysis unit determines that the planar transformer meets a second preset condition during alternating current-direct current conversion;
and if Y is less than Yj, the transformation analysis unit determines that the planar transformer does not meet a second preset condition during alternating current-direct current conversion.
7. The AC/DC conversion system of planar transformer based on high magnetic new material as claimed in claim 5, wherein the data adjustment unit has a first average adjustment coefficient Kp1 and a second average adjustment coefficient Kp2, the data adjustment unit compares the average adjustment coefficients Kp and Kp1 with Kp2 to determine the adjustment mode, and sets Kp1 < Kp2,
if Kp is less than or equal to Kp1, the data adjusting unit determines that the adjustment of the planar transformer during the alternating current-direct current conversion is not performed;
if Kp1 is more than Kp and less than or equal to Kp2, the data adjusting unit determines that the adjustment mode of the planar transformer during alternating current-direct current conversion is to adjust the current of the output end;
if Kp is larger than Kp2, the data adjusting unit determines that the adjusting mode of the planar transformer during alternating current-direct current conversion is to adjust the voltage of the input end.
8. The AC/DC conversion system of planar transformer based on high magnetic new material as claimed in claim 7, wherein the data adjustment unit determines to adjust the output current to a corresponding value according to the comparison result between the first ratio Ba of the average adjustment coefficients Kp and Kp1 and a preset ratio, wherein the preset ratio includes a first preset ratio B1 and a second preset ratio B2, B1 < B2 and Ba = Kp/Kp1,
if Ba is less than or equal to B1, the data adjusting unit adjusts the current of the output end to Ij, and Ij = I1 × e1;
if B1 is more than Ba and less than or equal to B2, the data adjusting unit adjusts the current of the output end to Ij, and the Ij = I1 × e2 is set;
if Ba is greater than B2, the data adjusting unit adjusts the current of the output end to Ij, and sets Ij = I1 × e3;
wherein e1 is a first current regulation coefficient, e2 is a second current regulation coefficient, and e3 is a third current regulation coefficient, and e3 is more than 0.7 and less than e2 and less than e1 and less than 1.
9. The AC/DC conversion system of planar transformer based on high magnetic new material as claimed in claim 7, wherein said data adjustment unit determines to adjust said output end current to a corresponding value according to the comparison result of the second ratio Bb of said average adjustment coefficients Kp and Kp2 with a preset ratio, setting Ba = Kp/Kp2,
if Bb is less than or equal to B1, the data adjusting unit adjusts the current of the output end to Uj, and Uj = Uxf 1;
if B1 is larger than Bb and is not larger than B2, the data adjusting unit adjusts the current of the output end to Uj, and Uj = Uxf 2 is set;
if Bb > B2, the data adjusting unit adjusts the output end current to Uj, and sets Uj = uxf 3;
wherein f1 is a first current regulation coefficient, f2 is a second current regulation coefficient, and f3 is a third current regulation coefficient, and e1 is more than 1 and less than e2 and less than e3 and less than 1.2 are set.
10. The system according to claim 8 or 9, wherein the first control execution unit sends a command to the rectifier to adjust the output current to I1 x Ki by the adjustment factor, setting I =1,2,3; the second control execution unit sends an instruction to the rectifier to cause the rectifier to adjust the output current to Ij or sends an instruction to the surge protector to cause the surge protector to adjust the input voltage to Uj.
CN202310044471.1A 2023-01-30 2023-01-30 AC/DC conversion system of planar transformer based on new high-magnetic material Active CN115800776B (en)

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