CN116827385A - Power information fusion device for DC-DC converter power control loop disturbance - Google Patents
Power information fusion device for DC-DC converter power control loop disturbance Download PDFInfo
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Abstract
The invention provides a power information fusion device for power control loop disturbance of a DC-DC converter, which comprises a direct current voltage source, a band-pass filter, a driving circuit, a modulation module and N source Boost converters as power sources. Compared with the prior communication mode, the transmitting converter does not need a baseband signal generating circuit and a coupling circuit, the receiving converter only needs a simple sampling and filtering circuit, and the control chip MCU completes signal demodulation, so that hardware cost is greatly reduced.
Description
Technical Field
The invention relates to the technical field of power electronic networking, in particular to a power information fusion device for power control loop disturbance of a DC-DC converter.
Background
In the context of a dual-carbon strategic goal, power electronics devices, which are one of the core hubs for building energy internet, have put higher demands on their own digitization and intelligence. Research into power electronics often focuses on power conversion, while less attention is paid to communication technology between devices. With the urgent need for information exchange by power electronics, students are continually fusing power electronics technology with information technology, and power/data deep integration of power electronics is expected to become a new trend.
The communication technology applied between power electronic devices at present mainly comprises wireless communication, control local area network bus communication and power line carrier communication. The wireless communication cost is low, the wireless communication is easy to be interfered by the outside, is not suitable for long-distance transmission, is easy to be invaded, and has low safety; the control local area network bus has high communication rate, requires additional communication cables and has low cost performance; the power line carrier communication relies on the power line to carry out data transmission, and the reliability is high, but the cost is low, an additional hardware circuit is needed to generate a baseband signal, and then the signal is coupled to the power line through an impedance matching circuit.
The above communication techniques cannot achieve a good balance in terms of noise immunity, real-time performance, cost, and the like. Therefore, by combining the characteristics of the power electronic equipment, a new communication method is explored to be a research direction of a learner, the power electronic technology is used as a branch of the electronic technology, the controllable conversion of the electric energy is realized, the electric energy before and after the conversion exists in an analog quantity mode, but a discretization state exists in the process of digitally controlling the power electronic equipment, and the method provides possibility for the integration of modern digital communication technology.
Disclosure of Invention
The invention aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a power information fusion device for DC-DC converter power control loop disturbance, comprising: the direct-current voltage source, the band-pass filter, the driving circuit, the modulation module, the N source Boost converters serving as power supplies, the M load Buck converters serving as loads and the direct-current bus; the output end of the Boost converter and the input end of the Buck converter share a direct current bus, and at least 1N and M are arranged;
when the modulation module does not send data, a communication switch of the modulation module is disconnected, traditional power conversion is carried out, the power modulation quantity vm (t) is directly compared with the triangular carrier wave vc (t) to generate a PWM signal, the duty ratio is delta (t), and the on and off of the switching tube are controlled.
The modulation module transmits data, the communication switch is conducted, the transmitting converter modulates a baseband signal vs (t) to be transmitted into a high-frequency signal vd (t) through MSK, the high-frequency signal vd (t) is superimposed on the original power modulation quantity vm (t), a composite power/data modulation quantity ve (t) is generated, and the composite power/data modulation quantity ve (t) is compared with a triangular carrier wave vc (t) to generate a PWM signal.
As a preferred embodiment, the source Boost converter comprises: first direct current voltage source E 1 First inductor L 1 First capacitor C 1 First switch tube Q 1 And a second switching tube Q 2 The first direct current voltage source E 1 Positive electrode and first inductor L 1 Is connected with one end of the first direct current voltage source E 1 Cathode and first switch tube Q 1 Source electrode connection, the first inductor L 1 The other end of (B) is connected with the first switch tube Q 1 Drain electrode and second switch tube Q 2 The source electrode is connected; the first capacitor C 1 One end of the first capacitor C is connected with the positive electrode of the direct current bus 1 The other end of the capacitor is connected with the negative electrode of the direct current bus; the first switch tube Q 1 Drain and first inductor L 1 Is connected with the first switch tube Q 1 The grid electrode of the first switch tube Q is connected with a driving circuit 1 The source electrode of the (C) is connected with the cathode of the direct current bus; the second switch tube Q 2 Drain and first capacitor C 1 Is connected with the second switch tube Q 2 The grid electrode is connected with the driving circuit, and the second switch tube Q 2 Source and first inductor L 1 Are all connected with the first switch tube Q 1 The drain electrode is connected.
As a preferred embodiment, the band-pass filter circuit includes: the band-pass filter circuit includes: first resistor R 1 A second resistor R 2 Third resistor R 3 Fourth resistor R 4 Fifth resistor R 5 First capacitor C 5 A second capacitor C 6 Third capacitor C 7 And an operational amplifier, the first resistor R 1 One end of (a) is connected with the first capacitor C 5 The first resistor R 1 And the other end of the second capacitor C 6 Third capacitor C 7 Is connected with a fourth resistor R 4 The method comprises the steps of carrying out a first treatment on the surface of the The second resistor R 2 One end and a third resistor R 3 An inverting input terminal of the operational amplifier, the second resistor R 2 The other end is grounded; the third resistor R 3 One end is connected with a fourth resistor R 4 The third resistor R is connected with the output end of the operational amplifier 3 The other end is connected with a second resistor R 2 The inverting input end of the operational amplifier is connected; the fourth resistor R 4 Terminating at a third resistor R 3 And an operational amplifier output, the fourth resistor R 4 The other end is connected with a first resistor R 1 A second capacitor C 6 Connected with a third capacitor C 7 The method comprises the steps of carrying out a first treatment on the surface of the The fifth resistor R 5 One end is connected with a third capacitor C 7 And an operational amplifier non-inverting input terminal, the fifth resistor R 5 The other end is grounded; first capacitor C 5 One end of the capacitor is connected with the positive electrode of the DC bus voltage, and the first capacitor C 5 The other end is connected with a first resistor R 1 The first capacitor C 5 Performing direct current blocking treatment on the direct current bus voltage to obtain an alternating current component of the direct current bus voltage; the second capacitor C 6 Terminating at a first resistor R 1 Fourth resistor R 4 And a third capacitor C 7 The second capacitor C 6 The other end is grounded; the third capacitor C 7 Terminating at a first resistor R 1 Fourth resistor R 4 And a second capacitor C 6 The third capacitor C 7 Another end is connected with a fifth resistor R 5 And the non-inverting input end of the operational amplifier; the positive power supply of the operational amplifier is connected with positive direct current voltage, the negative power supply of the operational amplifier is connected with negative direct current voltage, and the non-inverting input of the operational amplifier is connected with a fifth resistor R 5 And a third capacitor C 7 The inverting input of the operational amplifier is connected with the second resistor R 2 And a third resistor R3, the output end of the operational amplifier is connected with the third resistor R 3 Fourth resistor R 4 And an MCU.
As a preferred embodiment, the load Buck converter includes: third inductor L 3 Third capacitor C 3 Fifth switch tube Q 5 And a sixth switching tube Q 6 The third inductor L 3 One end and a third capacitor C 3 Connection of the third inductor L 3 Another end and a fifth switch tube Q 5 Source and sixth switching tube Q 6 Drain electrode is connected with the third capacitor C 3 One end and a third inductor L 3 Is connected with the third capacitor C 3 The other end is connected with the negative electrode of the direct current bus and the sixth switching tube Q 6 The source electrode is connected; the fifth switch tube Q 5 The drain electrode is connected with the positive electrode of the direct current bus, and the fifth switch tube Q 5 The grid electrode is connected with the driving circuit, and the fifth switch tube Q 5 Source and third inductor L 3 And a sixth switching tube Q 6 The drain electrode is connected; the sixth switching tube Q 6 Drain and third inductor L 3 And a fifth switching tube Q 5 Source electrode is connected with the sixth switching tube Q 6 The grid electrode is connected with a driving circuit, and the sixth switching tube Q 6 Source electrode, negative electrode of direct current bus and third capacitor C 3 And (5) connection.
As a preferred embodiment, the first switching tube Q 1 And a second switching tube Q 2 The driving signals are complementary, the fifth switch tube Q 5 And a sixth switching tube Q 6 The drive signals are complementary.
Compared with the prior art, the invention has the advantages and positive effects that,
1. the invention utilizes the power electronic converter to transmit data when power conversion is carried out, embeds digital communication at the same time of power conversion, superimposes the minimum frequency shift keying modulation carrier wave on the power modulation quantity in the original power control loop as disturbance signal, compares the composite modulation quantity of power/data with a triangular carrier wave to generate the duty ratio integrating data information, and finally demodulates the DC bus voltage to realize communication between the power electronic converters. Compared with the prior communication mode, the transmitting converter does not need a baseband signal generating circuit and a coupling circuit, the receiving converter only needs a simple sampling and filtering circuit, and the control chip MCU completes signal demodulation, so that hardware cost is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a source Boost, load Buck circuit diagram of a DC-DC converter power control loop disturbance of the present invention;
FIG. 2 is a diagram of a bandpass filter circuit;
FIG. 3 is a block diagram of a modulation module based on power control loop disturbance;
fig. 4 is a block diagram of data demodulation.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: a power information fusion device for DC-DC converter power control loop disturbance, comprising: the direct-current voltage source, the band-pass filter, the driving circuit, the modulation module, the N source Boost converters serving as power supplies, the M load Buck converters serving as loads and the direct-current bus; the output end of the Boost converter and the input end of the Buck converter share a direct current bus, and at least 1N and M are arranged; when the modulation module does not send data, a communication switch of the modulation module is disconnected, traditional power conversion is performed, the power modulation quantity vmt is directly compared with the triangular carrier vct to generate a PWM signal, the duty ratio is δt, and the on-off of the switching tube is controlled.
The modulation module sends data, the communication switch is turned on, the sending converter modulates the baseband signal vst to be transmitted into a high-frequency signal vdt through MSK, and the high-frequency signal vdt is superimposed on the original power modulation amount vmt to generate a composite power/data modulation amount vet, and the composite power/data modulation amount vet is compared with the triangular carrier vct to generate a PWM signal.
As shown in fig. 1-4, the source Boost converter boosts the dc voltage source to supply power to the back-end load Buck converter, and also serves as a data transceiver, and performs power conversion and information interaction, and the source Boost converter includes: first direct current voltage source E 1 First inductor L 1 First capacitor C 1 First switch tube Q 1 And a second switching tube Q 2 The first direct current voltage source E 1 Positive electrode and first inductor L 1 Is connected with one end of the first direct current voltage source E 1 Cathode and first switch tube Q 1 Source electrode connection, the first inductor L 1 The other end of (B) is connected with the first switch tube Q 1 Drain electrode and second switch tube Q 2 The source electrode is connected; the first capacitor C 1 One end of the first capacitor C is connected with the positive electrode of the direct current bus 1 The other end of the capacitor is connected with the negative electrode of the direct current bus; the first switch tube Q 1 Drain and first inductor L 1 Is connected with the first switch tube Q 1 The grid electrode of the first switch tube Q is connected with a driving circuit 1 The source electrode of the (C) is connected with the cathode of the direct current bus; the second switch tube Q 2 Drain and first capacitor C 1 Is connected with the second switch tube Q 2 The grid electrode is connected with the driving circuit, the source electrode of the second switch tube Q2 and the first inductor L1 are connected with the drain electrode of the first switch tube Q1, and dead time is inserted, wherein the first direct current voltage source E1, the first inductor L1, the first capacitor C1, the first switch tube Q1 and the second switch tube Q2 are identical to the first direct current voltage source E2 and the first electric powerA sensor L2, a first capacitor C2, a first switching tube Q3, and a second switching tube Q4.
As shown in fig. 1-4, the load Buck converter reduces the voltage of the dc bus to supply power to the load at the output end, and also serves as a data transceiver, and the load Buck converter includes: third inductor L 3 Third capacitor C 3 Fifth switch tube Q 5 And a sixth switching tube Q 6 The third inductor L 3 One end and a third capacitor C 3 Connection of the third inductor L 3 Another end and a fifth switch tube Q 5 Source and sixth switching tube Q 6 Drain electrode is connected with the third capacitor C 3 One end and a third inductor L 3 Is connected with the third capacitor C 3 The other end is connected with the negative electrode of the direct current bus and the sixth switching tube Q 6 The source electrode is connected; the fifth switch tube Q 5 The drain electrode is connected with the positive electrode of the direct current bus, and the fifth switch tube Q 5 The grid electrode is connected with the driving circuit, and the fifth switch tube Q 5 Source and third inductor L 3 And a sixth switching tube Q 6 The drain electrode is connected; the sixth switching tube Q 6 Drain and third inductor L 3 The grid electrode of the sixth switching tube Q6 is connected with a driving circuit, the source electrode of the sixth switching tube Q6 is connected with the negative electrode of the direct current bus and the third capacitor C3, dead time is inserted, and for power conversion, the voltage of the direct current bus is reduced to supply power to the load at the output end of the direct current bus; for communication, itself also serves as a data transceiver, and the third inductor L3, the third capacitor C3, the fifth switching tube Q5, and the sixth switching tube Q6 are equivalent to the third inductor L4, the third capacitor C4, the fifth switching tube Q7, and the sixth switching tube Q8.
As shown in fig. 1-4, the band-pass filter is of a second order butterworth type and is implemented by a mullen-key circuit, and the band-pass filter circuit comprises: first resistor R 1 A second resistor R 2 Third resistor R 3 Fourth resistor R 4 Fifth resistor R 5 First capacitor C 5 A second capacitor C 6 Third capacitor C 7 And an operational amplifier, the first resistorR 1 One end of (a) is connected with the first capacitor C 5 The first resistor R 1 And the other end of the second capacitor C 6 Third capacitor C 7 Is connected with a fourth resistor R 4 The method comprises the steps of carrying out a first treatment on the surface of the The second resistor R 2 One end and a third resistor R 3 An inverting input terminal of the operational amplifier, the second resistor R 2 The other end is grounded; the third resistor R 3 One end is connected with a fourth resistor R 4 The third resistor R is connected with the output end of the operational amplifier 3 The other end is connected with a second resistor R 2 The inverting input end of the operational amplifier is connected; the fourth resistor R 4 Terminating at a third resistor R 3 And an operational amplifier output, the fourth resistor R 4 The other end is connected with a first resistor R 1 A second capacitor C 6 Connected with a third capacitor C 7 The method comprises the steps of carrying out a first treatment on the surface of the The fifth resistor R 5 One end is connected with a third capacitor C 7 And an operational amplifier non-inverting input terminal, the fifth resistor R 5 The other end is grounded; first capacitor C 5 One end of the capacitor is connected with the positive electrode of the DC bus voltage, and the first capacitor C 5 The other end is connected with a first resistor R 1 The first capacitor C 5 Performing direct current blocking treatment on the direct current bus voltage to obtain an alternating current component of the direct current bus voltage; the second capacitor C 6 Terminating at a first resistor R 1 Fourth resistor R 4 And a third capacitor C 7 The second capacitor C 6 The other end is grounded; the third capacitor C 7 Terminating at a first resistor R 1 Fourth resistor R 4 And a second capacitor C 6 The third capacitor C 7 Another end is connected with a fifth resistor R 5 And the non-inverting input end of the operational amplifier; the positive power supply of the operational amplifier is connected with positive direct current voltage, the negative power supply of the operational amplifier is connected with negative direct current voltage, and the non-inverting input of the operational amplifier is connected with a fifth resistor R 5 And a third capacitor C 7 The inverting input of the operational amplifier is connected with the second resistor R 2 And a third resistor R 3 The output end of the operational amplifier is connected with a third resistor R 3 Fourth resistor R 4 And MCU, in this implementation, operational amplifierThe amplifier selects RS8752XM of the Runshi technology, adopts a dual-power supply mode, the gain of the band-pass filter is selected to be 4, and the MCU superimposes a minimum frequency shift keying signal on the power modulation quantity of the original power control loop to be used as disturbance, so that the frequency of the DC bus voltage ripple comprises the characteristic of data information; for power conversion, the duty cycle is guaranteed to be unchanged in a unit period; for communication, the minimum frequency shift keying modulated data carrier is guaranteed to be strictly orthogonal in one symbol period; in this implementation, the MCU selects STM32F407 from ST company, with a dominant frequency of 168MHz.
As shown in fig. 1-4, the first switch tube Q 1 And a second switching tube Q 2 The driving signals are complementary, and the driving signals of the fifth switching tube and the sixth switching tube are complementary, in the embodiment, the driving chip selects SI8233BD-D-ISR of core science and technology, and the driving chip has an isolation function.
As shown in fig. 3, when the modulation module does not transmit data, the communication switch of the modulation module is turned off to perform conventional power conversion, the power modulation amount vmt is directly compared with the triangular carrier vct to generate a PWM signal, the duty ratio is δt, and the on and off of the switching tube are controlled; the modulation module sends data, the communication switch is conducted, the base band signal vst to be transmitted is modulated into a high-frequency signal vdt through MSK, the high-frequency signal vdt is superimposed on the original power modulation vmt by the sending converter, the composite power/data modulation vet is generated, the composite power/data modulation vet is compared with the triangular carrier vct to generate PWM signals, in the implementation mode, f1=20 kHz, f0=18 kHz is selected, the frequency of the output voltage ripple carries data information, the method is double-carrier modulation, in the method, triangular carrier is adopted for power conversion, sinusoidal carrier is adopted for data modulation, the minimum frequency shift keying modulation mode is applied to the power/information fusion technology, the frequency band utilization rate can be improved, the power carrier signal is not changed by changing the power modulation quantity, the power conversion and the data transmission adopt different carriers, the data modulation is combined on the basis of the traditional PWM, the information and the intellectualization of the power electronic equipment are greatly improved by superposing the data carrier on the power loop, the data modulation mode is flexible, the anti-interference performance is strong, the power conversion and the communication interference and the communication distance are far, the prior art is the FSK is one or more frequency shift keying technology. In FSK, different digital bits (0 or 1) are represented by different frequencies. For example, 0 may be represented as a low frequency signal and 1 may be represented as a high frequency signal. The frequency switching of the FSK signal is abrupt, the signal has a distinct transition between different frequencies, the main difference compared to the MSK modulation is that the FSK signal hops between frequencies, whereas the MSK signal has a smooth frequency variation during each bit, and due to the hopping nature of the FSK signal, its frequency spectrum usually has a plurality of discrete frequency components, whereas the frequency spectrum of the MSK signal is relatively narrow, comprising only one main frequency component, and due to the difference in frequency spectrum, the MSK signal usually has a higher bandwidth efficiency, can transmit more data in the same bandwidth range, and due to the smooth frequency variation, the MSK signal has a better interference immunity in some interference environments with respect to the FSK signal, whereas the MSK is a special type of Continuous Phase Modulation (CPM), which has only one fixed frequency variation during each bit. The frequency variation of the MSK signal is smooth and the signal has no transitions between different frequencies.
As shown in fig. 4, the voltage spectrum on the dc bus is mainly concentrated at dc components, f1=20 kHz and f0=18 kHz; the band-pass filters BPF1 and BPF0 respectively filter the voltage after blocking to obtain voltage ripples only comprising f1=20 kHz or f0=18 kHz as a main component, and then respectively perform sliding discrete fourier transform SDFT to obtain the amplitudes of f1=20 kHz and f0=18 kHz frequency points, and compare with a threshold set by a program to finally judge symbols "1" and "0", thereby realizing signal demodulation.
The power information fusion method of the power information fusion device for the DC-DC converter power control loop disturbance is specifically as follows:
s1, a source Boost converter increases a direct-current voltage source to supply power for a back-stage load Buck converter, the source Boost converter also serves as a data transceiver, meanwhile, power conversion and information interaction are completed, and dead time is inserted.
S2, the load Buck converter reduces the voltage of the direct current bus to supply power to the load at the output end of the load Buck converter, the load Buck converter also serves as a data transceiver, and dead time is inserted.
S3, the source Boost converter and the load Buck converter comprise a sampling circuit, a band-pass filter circuit, a control circuit and a driving circuit.
S4, sampling the output voltage by a sampling circuit; the band-pass filter circuit isolates the direct current component on the direct current bus voltage, carries out band-pass filter treatment on the alternating current component of the direct current component, and filters noise except carrier frequency; the control circuit carries out operation in a digital quantity mode, for modulation, low-frequency baseband data are modulated on a high-frequency carrier wave, then the high-frequency carrier wave is used as a disturbance signal to be superimposed on the power modulation quantity of the original power control loop, and finally the composite modulation quantity of power/data is used as a comparison value of a counter to generate the duty ratio integrating data information; for demodulation, sampling and judging the voltage ripple processed by the band-pass filter circuit, and the driving circuit performs power amplification on the PWM signal integrated with the data information to drive the first switching tube Q 1 And a second switching tube Q 2 Complementary on and off, a driving chip with isolation is adopted.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (5)
- A power information fusion device for DC-DC converter power control loop disturbance, comprising: the direct-current voltage source, the band-pass filter, the driving circuit, the modulation module, the N source Boost converters serving as power supplies, the M load Buck converters serving as loads and the direct-current bus; the output end of the Boost converter and the input end of the Buck converter share a direct current bus, and at least 1N and M are arranged;when the modulation module does not send data, a communication switch of the modulation module is disconnected, traditional power conversion is carried out, the power modulation quantity vm (t) is directly compared with the triangular carrier wave vc (t) to generate a PWM signal, the duty ratio is delta (t), and the on and off of the switching tube are controlled.The modulation module transmits data, the communication switch is conducted, the transmitting converter modulates a baseband signal vs (t) to be transmitted into a high-frequency signal vd (t) through MSK, the high-frequency signal vd (t) is superimposed on the original power modulation quantity vm (t), a composite power/data modulation quantity ve (t) is generated, and the composite power/data modulation quantity ve (t) is compared with a triangular carrier wave vc (t) to generate a PWM signal.
- 2. The power information fusion device of DC-DC converter power control loop disturbance of claim 1, wherein: the source Boost converter includes: first direct current voltage source E 1 First inductor L 1 First capacitor C 1 First switch tube Q 1 And a second switching tube Q 2 The first direct current voltage source E 1 Positive electrode and first inductor L 1 Is connected with one end of the first direct current voltage source E 1 Cathode and first switch tube Q 1 Source electrode connection, the first inductor L 1 The other end of (B) is connected with the first switch tube Q 1 Drain electrode and second switch tube Q 2 The source electrode is connected; the first capacitor C 1 One end of the first capacitor C is connected with the positive electrode of the direct current bus 1 The other end of the capacitor is connected with the negative electrode of the direct current bus; the first switch tube Q 1 Drain and first inductor L 1 Is connected with the first switch tube Q 1 The grid electrode of the first switch tube Q is connected with a driving circuit 1 The source electrode of the (C) is connected with the cathode of the direct current bus; the second switch tube Q 2 Drain and first capacitor C 1 Is connected with the second switch tube Q 2 The grid electrode is connected with the driving circuit, and the second switch tube Q 2 Source and first inductor L 1 Are all connected with the first switch tube Q 1 The drain electrode is connected.
- 3. The power information fusion device of DC-DC converter power control loop disturbance of claim 2, wherein: the band-pass filter circuit includes: first resistor R 1 A second resistor R 2 Third resistor R 3 Fourth resistor R 4 Fifth resistor R 5 First capacitor C 5 A second capacitor C 6 Third capacitor C 7 And an operational amplifier, the first resistor R 1 One end of (a) is connected with the first capacitor C 5 The first resistor R 1 And the other end of the second capacitor C 6 Third capacitor C 7 Is connected with a fourth resistor R 4 The method comprises the steps of carrying out a first treatment on the surface of the The second resistor R 2 One end and a third resistor R 3 An inverting input terminal of the operational amplifier, the second resistor R 2 The other end is grounded; the third resistor R 3 One end is connected with a fourth resistor R 4 The third resistor R is connected with the output end of the operational amplifier 3 The other end is connected with a second resistor R 2 The inverting input end of the operational amplifier is connected; the fourth resistor R 4 Terminating at a third resistor R 3 And an operational amplifier output, the fourth resistor R 4 The other end is connected with a first resistor R 1 A second capacitor C 6 Connected with a third capacitor C 7 The method comprises the steps of carrying out a first treatment on the surface of the The fifth resistor R 5 One end is connected with a third capacitor C 7 And an operational amplifier non-inverting input terminal, the fifth resistor R 5 The other end is grounded; first capacitor C 5 One end of the capacitor is connected with the positive electrode of the DC bus voltage, and the first capacitor C 5 The other end is connected with a first resistor R 1 The first capacitor C 5 Performing direct current blocking treatment on the direct current bus voltage to obtain an alternating current component of the direct current bus voltage; the second capacitor C 6 Terminating at a first resistor R 1 Fourth resistor R 4 And a third capacitor C 7 The second capacitor C 6 The other end is grounded; the third capacitor C 7 Terminating at a first resistor R 1 Fourth resistor R 4 And a second capacitor C 6 The third capacitor C 7 Another end is connected with a fifth resistor R 5 And the non-inverting input end of the operational amplifier; the positive power supply of the operational amplifier is connected with positive direct current voltage, the negative power supply of the operational amplifier is connected with negative direct current voltage, and the non-inverting input of the operational amplifier is connected with a fifth resistor R 5 And a third capacitor C 7 The inverting input of the operational amplifier is connected with the second resistor R 2 And a third resistor R 3 The output end of the operational amplifier is connected with a third resistor R 3 Fourth resistor R 4 And an MCU.
- 4. A power information fusion device for DC-DC converter power control loop disturbance as recited in claim 3, wherein: the load Buck converter comprises: third inductor L 3 Third capacitor C 3 Fifth switch tube Q 5 And a sixth switching tube Q 6 The third inductor L 3 One end and a third capacitor C 3 Connection of the third inductor L 3 Another end and a fifth switch tube Q 5 Source and sixth switching tube Q 6 Drain electrode is connected with the third capacitor C 3 One end and a third inductor L 3 Is connected with the third capacitor C 3 The other end is connected with the negative electrode of the direct current bus and the sixth switching tube Q 6 The source electrode is connected; the fifth switch tube Q 5 The drain electrode is connected with the positive electrode of the direct current bus, and the fifth switch tube Q 5 The grid electrode is connected with the driving circuit, and the fifth switch tube Q 5 Source and third inductor L 3 And a sixth switching tube Q 6 The drain electrode is connected; the sixth switching tube Q 6 Drain and third inductor L 3 And a fifth switching tube Q 5 Source electrode is connected with the sixth switching tube Q 6 The grid electrode is connected with a driving circuit, and the sixth switching tube Q 6 Source electrode, negative electrode of direct current bus and third capacitor C 3 And (5) connection.
- 5. The power information fusion device for DC-DC converter power control loop disturbance of claim 4, wherein: the first switch tube Q 1 And a second switching tube Q 2 The driving signals are complementary, the fifth switch tube Q 5 And a sixth switching tube Q 6 The drive signals are complementary.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4449174A (en) * | 1982-11-30 | 1984-05-15 | Bell Telephone Laboratories, Incorporated | High frequency DC-to-DC converter |
| CN101162868A (en) * | 2006-10-13 | 2008-04-16 | 深圳迈瑞生物医疗电子股份有限公司 | Converter with continuously adjustable output |
| CN102624427A (en) * | 2012-03-05 | 2012-08-01 | 浙江大学 | Synchronous transmission system of energy and information |
| CN103368609A (en) * | 2013-06-21 | 2013-10-23 | 浙江大学 | Coupling inductance-based power signal composite transmission system |
| WO2014079129A1 (en) * | 2012-11-21 | 2014-05-30 | 东南大学 | Fast transient response dc-dc switching converter with high load regulation rate |
| CN111404580A (en) * | 2020-03-24 | 2020-07-10 | 中国矿业大学 | OFDM-based DC/DC converter power line power signal composite transmission system and transmission method |
| CN114785136A (en) * | 2022-04-12 | 2022-07-22 | 湖南大学 | Digital power communication auxiliary power supply and ripple wave suppression method thereof |
| CN114825656A (en) * | 2022-04-06 | 2022-07-29 | 浙江大学 | Wireless power and data synchronous transmission system and data modulation method |
-
2023
- 2023-07-03 CN CN202310801960.7A patent/CN116827385B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4449174A (en) * | 1982-11-30 | 1984-05-15 | Bell Telephone Laboratories, Incorporated | High frequency DC-to-DC converter |
| CN101162868A (en) * | 2006-10-13 | 2008-04-16 | 深圳迈瑞生物医疗电子股份有限公司 | Converter with continuously adjustable output |
| CN102624427A (en) * | 2012-03-05 | 2012-08-01 | 浙江大学 | Synchronous transmission system of energy and information |
| WO2014079129A1 (en) * | 2012-11-21 | 2014-05-30 | 东南大学 | Fast transient response dc-dc switching converter with high load regulation rate |
| CN103368609A (en) * | 2013-06-21 | 2013-10-23 | 浙江大学 | Coupling inductance-based power signal composite transmission system |
| CN111404580A (en) * | 2020-03-24 | 2020-07-10 | 中国矿业大学 | OFDM-based DC/DC converter power line power signal composite transmission system and transmission method |
| CN114825656A (en) * | 2022-04-06 | 2022-07-29 | 浙江大学 | Wireless power and data synchronous transmission system and data modulation method |
| CN114785136A (en) * | 2022-04-12 | 2022-07-22 | 湖南大学 | Digital power communication auxiliary power supply and ripple wave suppression method thereof |
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