CN218242004U - Intelligent magnesium air battery - Google Patents
Intelligent magnesium air battery Download PDFInfo
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- CN218242004U CN218242004U CN202220572049.4U CN202220572049U CN218242004U CN 218242004 U CN218242004 U CN 218242004U CN 202220572049 U CN202220572049 U CN 202220572049U CN 218242004 U CN218242004 U CN 218242004U
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Abstract
The utility model provides an intelligent magnesium air battery, relates to the metal air battery field, including voltage output circuit, voltage output circuit includes vary voltage circuit and control circuit, and vary voltage circuit includes contravariant resonant circuit, voltage conversion circuit, rectification filter circuit and gain unit, the utility model discloses in can provide multiport voltage output such as 5v, 12v, 24v, 36v, and gain is effectual, when multicircuit output, different circuit connect different loads can cause the influence to output voltage, for the cross adjustment rate, optimize the cross adjustment rate, feed back and stable processing to multichannel voltage output, can carry out voltage feedforward control according to magnesium air emergency power source input, can respond to the voltage fluctuation that causes because of the power internal reaction to stable output voltage.
Description
Technical Field
The utility model belongs to the technical field of the metal-air battery and specifically relates to an intelligent magnesium-air battery.
Background
The magnesium air battery can be applied to an energy storage standby power supply, a power supply of an underwater marine instrument and the like, and when the magnesium air battery is used as an emergency power supply, voltages of different levels need to be output in different occasions for equipment to use; when a plurality of groups of circuits output voltages of different grades, the voltages output by a certain circuit are influenced by the loads of other circuits, so that the output voltage of each circuit has larger fluctuation; the inside of the emergency power supply generates corresponding electric energy by taking metal magnesium as a cathode through chemical reaction, the discharge characteristic of the emergency power supply is different from that of other batteries, and the chemical reaction can also cause larger fluctuation of the output voltage of the power supply; when the emergency power supply outputs discharge, the internal resistance of the battery is continuously increased, the concentration of the electrolyte is continuously reduced, and the emergency use effect of the power supply can be influenced. The existing magnesium air emergency power supply can not respond according to the internal reaction of a battery and the voltage change caused by a connected load while outputting different levels of voltage, the fluctuation range of the output voltage of the power supply is large, and exceeds the voltage index range allowed by the connected load, so that the control precision is insufficient, and the emergency use effect cannot be achieved;
the following disadvantages exist:
1. the voltage level output by the magnesium air emergency power supply is not much (generally only 5v and 12 v);
2. the voltage output of different grades is not stable enough, and the voltage transformation gain capability is not enough;
3. when multiple circuits output with loads, different circuits connected with different loads can affect output voltage, the output voltage is unstable, namely the cross regulation rate, and the emergency power supply cannot well perform feedback regulation according to output voltage fluctuation;
4. the input voltage fluctuation caused by the internal reaction of the magnesium air emergency power supply cannot be well regulated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligent magnesium air battery to solve the problem that proposes among the above-mentioned background art.
The utility model provides a its technical problem take following technical scheme to realize: an intelligent magnesium air battery comprises a voltage output circuit, wherein the voltage output circuit comprises a voltage transformation circuit and a control circuit;
the voltage transformation circuit comprises an inversion resonance circuit, a voltage transformation circuit, a rectification filter circuit and a gain unit; the input end of the inversion resonant circuit is connected with the output end of the magnesium-air battery, the output end of the inversion resonant circuit is connected with the input end of the rectification filter circuit, and the input end of the gain unit is connected with the output end of the rectification filter circuit;
the control circuit comprises an output feedback circuit, a microcontroller and a PWM control circuit; the output feedback circuit comprises a weighting control module, a first PID control module and a second PID control module, and the output feedback circuit performs weighting control after acquiring the voltage at the output end; one end of the weighting control module receives output voltages of a Vout1 end and a Vout2 end of the gain unit, and the other end of the weighting control module is connected to the input end of the first PID control module; the output end of the first PID control module and the output end of the gain unit (inductive current signals Iout1 and Iout 2) are connected with the input end of the second PID control module;
the voltage output circuit further comprises a voltage output circuit comprising a signal transmission relationship between a control circuit and a transformation circuit (as shown in fig. 4): output voltage signals of a Vout1 end and a Vout2 end of the gain unit are transmitted into the weighting control module, an output voltage proportional signal is transmitted into the first PID control module after being compared with reference voltage Vref of an output port, an electric signal after PID adjustment is transmitted into the second PID control module after being compared with inductive current signals (Iout 1 and Iout 2) in the rectifying and filtering circuit, the electric signal after PID adjustment is transmitted into the microcontroller after being compared with an input voltage feedforward signal Vin and a rated input voltage signal Vcat of the emergency power supply again, and the microcontroller processes the signals to generate different PWM wave signals.
Preferably, the inverter resonant circuit comprises a switching tube Q1, a switching tube Q2, a switching tube Q3, a switching tube Q4, a resistor R1, an inductor L1 and a capacitor C6, and the drain end of the switching tube Q1 is electrically connected with the positive end of the magnesium air battery; the drain end of the switching tube Q3 is electrically connected with the source end of the switching tube Q1, and the source end of the switching tube Q3 is electrically connected with the cathode end of the battery; the drain end of the switching tube Q2 is electrically connected with the positive electrode end of the battery; the drain end of the switching tube Q4 is electrically connected with the source end of the switching tube Q2, and the source end of the switching tube Q4 is electrically connected with the cathode end of the battery; one end of the resistor R1 is electrically connected with a source end of the switching tube Q1, the other end of the resistor R1 is connected with an inductor L1 point, and two ends of the inductor L1 are respectively and electrically connected with the resistor R1 and the capacitor C6; the inverter resonant circuit further comprises a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4, wherein the four capacitors are respectively electrically connected with the drain end and the source end of the switch tube Q1, the switch tube Q2, the switch tube Q3 and the switch tube Q4.
Preferably, the voltage conversion circuit includes a transformer T1, one interface of an input end of the transformer T1 is electrically connected to the capacitor C6, and the other interface is electrically connected to a drain end of the switching tube Q4.
Preferably, the rectification filter circuit comprises a full-wave bridge rectifier D7, a full-wave bridge rectifier D8, a coupling inductor L2, a coupling inductor L5, a diode D1, a diode D4, a capacitor C7, a capacitor C10, a resistor R2, a resistor R3, a resistor R5, and a resistor R6; the full-wave bridge rectifier D7 and the full-wave bridge rectifier D8 are respectively electrically connected with two output ends of the transformer T1; two ends of a coupling inductor L2 are respectively and electrically connected with the positive end of a diode D1 and a full-wave bridge rectifier D7, and a coupling inductor L5 is respectively and electrically connected with the positive end of a diode D4 and a full-wave bridge rectifier D8; the cathode end of the diode D1 is electrically connected with one end of the capacitor C7 and one end of the resistor R3 respectively; the cathode end of the diode D4 is electrically connected with one end of the capacitor C10 and one end of the resistor R6 respectively; the other end of the capacitor C7 is electrically connected with one end of the resistor R2, and the other end of the capacitor C10 is electrically connected with one end of the resistor R5; the other ends of the resistor R2 and the resistor R3 are electrically connected to the full-wave bridge rectifier D7, and the other ends of the resistor R5 and the resistor R6 are electrically connected to the full-wave bridge rectifier D8, wherein the transformer T1 has two output ends, and the transformer T1 may also have a plurality of output ends, i.e., voltages of different levels may be output, without limiting the two-way output as in this embodiment 1.
Preferably, the gain unit comprises a switching tube Q6, a switching tube Q7, a diode D2, a diode D3, a diode D5, a diode D6, an inductor L3, an inductor L4, an inductor L6, an inductor L7, a capacitor C8, a capacitor C9, a capacitor C11, a capacitor C12, a resistor R4 and a resistor R7; the drain end of the switching tube Q6 is electrically connected with the negative end of the D1, and the drain end of the switching tube Q7 is electrically connected with the negative end of the D4; one end of the inductor L3 is electrically connected with a source end of the switch tube Q6, the other end of the inductor L3 is electrically connected with a negative electrode end of the resistor R3, one end of the inductor L6 is electrically connected with a source end of the switch tube Q7, and the other end of the inductor L6 is electrically connected with a negative electrode end of the resistor R6; one end of an inductor L4 is electrically connected with a source terminal of a switching tube Q6 and a negative terminal of a diode D2 respectively, the other end of the inductor L4 is electrically connected with one end of a capacitor C8, the other end of the capacitor C8 is electrically connected with a negative terminal of a resistor R3, one end of an inductor L7 is electrically connected with a source terminal of a switching tube Q7 and a negative terminal of a diode D5 respectively, the other end of the inductor L7 is electrically connected with one end of a capacitor C11, and the other end of the capacitor C11 is electrically connected with a negative terminal of a resistor R6; one end of the diode D3 is electrically connected with the positive end of the inductor L3, and the other end of the diode D3 is electrically connected with the negative end of the inductor L4; one end of a capacitor C9 is electrically connected with the positive end of the diode D2, the other end of the capacitor C9 is electrically connected with the negative end of the resistor R3, one end of a capacitor C12 is electrically connected with the positive end of the diode D5, and the other end of the capacitor C12 is electrically connected with the negative end of the resistor R6; the resistor R4 is connected in parallel at two ends of the capacitor C9, the resistor R7 is connected in parallel at two ends of the capacitor C12, wherein one end of the capacitor C5 is connected with the anode of the magnesium air battery, the other end of the capacitor C5 is grounded, a follow-up circuit can be charged to reduce input voltage fluctuation, the PWM control circuit is respectively electrically connected with gate terminals of the switching tube Q1, the switching tube Q2, the switching tube Q3, the switching tube Q4, the switching tube Q6, the switching tube Q7 and the switching tube Q8, the duty ratio of the PWM control circuit can be adjusted between 0 and 1, and one end of the resistor R4 and one end of the resistor R7 are circuit voltage output ends.
Preferably, the input end of the microcontroller is connected with the output end of a PID control module in the output feedback circuit, and the output end of the microcontroller is connected with the input end of the PWM control circuit; the output end of the PWM control circuit is connected to switching tubes Q1, Q2, Q3, Q4, Q6 and Q7 of the inversion resonance circuit and the gain unit, PI regulation and PD regulation are arranged in the first PID control module and the second PID control module, and the PI regulation reduces or eliminates steady-state errors and can be carried out when the fluctuation change of output voltage is not large; PD adjustment changes dynamic performance, increases system stability, and when output voltage fluctuation changes greatly, the weighting control module samples and feeds back the output voltage of each port according to the weight proportion (namely, multiplies a certain coefficient)
The utility model has the advantages that:
1. the multi-port voltage output of 5v, 12v, 24v, 36v and the like can be provided, and the gain effect is good.
2. When the multi-circuit outputs, different circuits are connected with different loads to influence the output voltage, namely, the cross regulation rate is optimized, and the multi-circuit voltage output is fed back and stabilized.
3. The voltage feedforward control can be carried out according to the input of the magnesium air emergency power supply, and the voltage fluctuation caused by the internal reaction of the power supply can be responded, so that the output voltage is stabilized.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic diagram of a transformer circuit principle connection structure of the present invention;
fig. 2 is a schematic diagram of a simulation structure of a transformer circuit according to the present invention;
FIG. 3 is a graph of a discharge curve of a magnesium air emergency power supply;
FIG. 4 is a schematic diagram of the output voltage conversion circuit of the present invention;
FIG. 5 is a graph of the output port voltage waveform without feedback;
FIG. 6 is a voltage waveform diagram of the output port of the present invention;
fig. 7 is the utility model discloses intelligent magnesium air emergency power supply of multivoltage level structure sketch.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The invention will be described in detail with reference to fig. 1 to 7, wherein for the sake of convenience of description, the following orientations are defined as follows: the up-down, left-right, front-back direction described below is consistent with the front-back, left-right, top-down direction of the view direction of fig. 1, fig. 1 is the front view of the device of the present invention, and the direction shown in fig. 1 is consistent with the front-back, left-right, top-down direction of the front view direction of the device of the present invention.
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:
referring to fig. 1-7, the present invention provides an embodiment: an intelligent magnesium air battery comprises a voltage output circuit, wherein the voltage output circuit comprises a voltage transformation circuit and a control circuit;
the voltage transformation circuit comprises an inversion resonance circuit, a voltage transformation circuit, a rectification filter circuit and a gain unit; the input end of the inversion resonant circuit is connected with the output end of the magnesium air battery, the output end of the inversion resonant circuit is connected with the input end of the rectification filter circuit, and the input end of the gain unit is connected with the output end of the rectification filter circuit;
the control circuit comprises an output feedback circuit, a microcontroller and a PWM control circuit; the output feedback circuit comprises a weighting control module, a first PID control module and a second PID control module, and the output feedback circuit performs weighting control after acquiring the voltage at the output end; one end of the weighting control module receives output voltages of a Vout1 end and a Vout2 end of the gain unit, and the other end of the weighting control module is connected to the input end of the first PID control module; the output end of the first PID control module and the output end of the gain unit (inductive current signals Iout1 and Iout 2) are connected with the input end of the second PID control module;
the voltage output circuit further comprises a voltage output circuit comprising a signal transmission relationship between a control circuit and a transformation circuit (as shown in fig. 4): output voltage signals of a Vout1 end and a Vout2 end of the gain unit are transmitted into the weighting control module, an output voltage proportional signal is transmitted into the first PID control module after being compared with a reference voltage Vref of an output port, an electric signal after PID adjustment is transmitted into the second PID control module after being compared with inductive current signals (Iout 1 and Iout 2) in the rectifying and filtering circuit, the electric signal after PID adjustment is transmitted into the microcontroller after being compared with an input voltage feedforward signal Vin and a rated input voltage signal Vrat of the emergency power supply again, and the microcontroller processes the signals to generate different PWM wave signals.
In addition, in one embodiment, the inverter resonant circuit comprises a switching tube Q1, a switching tube Q2, a switching tube Q3, a switching tube Q4, a resistor R1, an inductor L1 and a capacitor C6, wherein the drain end of the switching tube Q1 is electrically connected with the positive end of the magnesium air battery; the drain end of the switching tube Q3 is electrically connected with the source end of the switching tube Q1, and the source end of the switching tube Q3 is electrically connected with the cathode end of the battery; the drain end of the switching tube Q2 is electrically connected with the positive electrode end of the battery; the drain end of the switching tube Q4 is electrically connected with the source end of the switching tube Q2, and the source end of the switching tube Q4 is electrically connected with the cathode end of the battery; one end of the resistor R1 is electrically connected with a source end of the switching tube Q1, the other end of the resistor R1 is connected with an inductor L1 point, and two ends of the inductor L1 are respectively and electrically connected with the resistor R1 and the capacitor C6; the inverter resonant circuit further comprises a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4, wherein the four capacitors are respectively electrically connected with the drain end and the source end of the switch tube Q1, the switch tube Q2, the switch tube Q3 and the switch tube Q4.
In addition, in an embodiment, the voltage converting circuit includes a transformer T1, one interface of an input end of the transformer T1 is electrically connected to the capacitor C6, and the other interface is electrically connected to a drain end of the switching tube Q4.
In addition, in one embodiment, the rectification filter circuit includes a full-wave bridge rectifier D7, a full-wave bridge rectifier D8, a coupling inductor L2, a coupling inductor L5, a diode D1, a diode D4, a capacitor C7, a capacitor C10, a resistor R2, a resistor R3, a resistor R5, and a resistor R6; the full-wave bridge rectifier D7 and the full-wave bridge rectifier D8 are respectively electrically connected with two output ends of the transformer T1; two ends of a coupling inductor L2 are respectively and electrically connected with the positive end of a diode D1 and a full-wave bridge rectifier D7, and a coupling inductor L5 is respectively and electrically connected with the positive end of a diode D4 and a full-wave bridge rectifier D8; the cathode end of the diode D1 is electrically connected with one end of the capacitor C7 and one end of the resistor R3 respectively; the cathode end of the diode D4 is electrically connected with one end of the capacitor C10 and one end of the resistor R6 respectively; the other end of the capacitor C7 is electrically connected with one end of the resistor R2, and the other end of the capacitor C10 is electrically connected with one end of the resistor R5; the other ends of the resistor R2 and the resistor R3 are electrically connected to the full-wave bridge rectifier D7, and the other ends of the resistor R5 and the resistor R6 are electrically connected to the full-wave bridge rectifier D8, wherein the transformer T1 has two output ends, and the transformer T1 may also have a plurality of output ends, i.e., may output voltages of different levels, and is not limited to the two-way output in this embodiment 1.
In addition, in one embodiment, the gain unit includes a switch tube Q6, a switch tube Q7, a diode D2, a diode D3, a diode D5, a diode D6, an inductor L3, an inductor L4, an inductor L6, an inductor L7, a capacitor C8, a capacitor C9, a capacitor C11, a capacitor C12, a resistor R4, and a resistor R7; the drain end of the switching tube Q6 is electrically connected with the negative electrode end of the D1, and the drain end of the switching tube Q7 is electrically connected with the negative electrode end of the D4; one end of the inductor L3 is electrically connected with a source end of the switch tube Q6, the other end of the inductor L3 is electrically connected with a negative electrode end of the resistor R3, one end of the inductor L6 is electrically connected with a source end of the switch tube Q7, and the other end of the inductor L6 is electrically connected with a negative electrode end of the resistor R6; one end of an inductor L4 is electrically connected with a source terminal of a switching tube Q6 and a negative terminal of a diode D2 respectively, the other end of the inductor L4 is electrically connected with one end of a capacitor C8, the other end of the capacitor C8 is electrically connected with a negative terminal of a resistor R3, one end of an inductor L7 is electrically connected with a source terminal of a switching tube Q7 and a negative terminal of a diode D5 respectively, the other end of the inductor L7 is electrically connected with one end of a capacitor C11, and the other end of the capacitor C11 is electrically connected with a negative terminal of a resistor R6; one end of the diode D3 is electrically connected with the positive end of the inductor L3, and the other end of the diode D3 is electrically connected with the negative end of the inductor L4; one end of a capacitor C9 is electrically connected with the positive end of the diode D2, the other end of the capacitor C9 is electrically connected with the negative end of the resistor R3, one end of a capacitor C12 is electrically connected with the positive end of the diode D5, and the other end of the capacitor C12 is electrically connected with the negative end of the resistor R6; the resistor R4 is connected with two ends of the capacitor C9 in parallel, the resistor R7 is connected with two ends of the capacitor C12 in parallel, one end of the capacitor C5 is connected with the anode of the magnesium air battery, the other end of the capacitor C5 is grounded, a follow-up circuit can be charged to reduce input voltage fluctuation, the PWM control circuit is respectively electrically connected with grid terminals of the switch tube Q1, the switch tube Q2, the switch tube Q3, the switch tube Q4, the switch tube Q6, the switch tube Q7 and the switch tube Q8, the duty ratio of the PWM control circuit can be adjusted between 0 and 1, and one end of the resistor R4 and one end of the resistor R7 are circuit voltage output ends.
In addition, in one embodiment, the input end of the microcontroller is connected with the output end of a PID control module in the output feedback circuit, and the output end of the microcontroller is connected with the input end of the PWM control circuit; the output end of the PWM control circuit is connected to switching tubes Q1, Q2, Q3, Q4, Q6 and Q7 of the inversion resonance circuit and the gain unit, PI regulation and PD regulation are arranged in the first PID control module and the second PID control module, and the PI regulation reduces or eliminates steady-state errors and can be carried out when the fluctuation change of the output voltage is not large; the PD adjustment changes the dynamic performance, the system stability is increased, the PD adjustment is carried out when the fluctuation change of the output voltage is large, and the weighting control module carries out sampling feedback (namely multiplying a certain coefficient) on the output voltage of each port according to the weight proportion.
When the power supply Vin is used, the power supply Vin is a magnesium air battery, and the capacitor C5 can be used for storing energy for the battery; the full-bridge LLC resonant converter composed of the switching tubes Q1, Q2, Q3 and Q4 is controlled by the PWM control circuit, so that the free switching-on of the switching tubes is realized, and the switching loss is reduced; two paths of output voltage are generated through a transformer T1, rectified by full-wave bridge rectifiers D7 and D8, and filtered through coupling inductors L2 and L5; when the switching tubes Q6 and Q7 are turned off, the diodes D2, D3, D5 and D6 are in a conducting state, the capacitors C8, C9, C11 and C12 are charged, and the inductors L3, L4, L6 and L7 are discharged;
fig. 2 is a simulation schematic diagram of a connection structure based on the principle of a transformer circuit, in the use process of the magnesium air emergency power supply, a multipath load condition occurs, and when a certain port outputs a load, fluctuation of an output voltage of another port is caused, so that output voltage weighted feedback and coupling processing are performed on an inductor of a filter circuit, and the load cross regulation rate is reduced. The violent chemical reaction in the magnesium air emergency power supply can cause the fluctuation of the input voltage, and the input voltage of the power supply is detected in real time through input voltage feedforward. Weighting output voltages of different ports and comparing the weighted output voltages with reference voltage to obtain a voltage fluctuation value, changing the dynamic performance of a system by PD adjustment when the voltage output fluctuation is large to improve the stability, and reducing a steady-state error by PI adjustment when the voltage output fluctuation is small; and then comparing the feedback signal with the feedback signal of the filter inductance current and carrying out PI control. At the moment, the value is multiplied by the value fed forward by the input voltage and then is sent to a PWM generator to generate PWM waves with different duty ratios, and finally the PWM waves are returned to an inverter circuit to generate the required pulse rectangular waves and are returned to a voltage gain circuit to generate the required gain effect after being controlled, so that stable output voltage is obtained;
as shown in fig. 3, the discharging curve of the magnesium air emergency power supply of the present invention shows a violent fluctuation of the output voltage of the first half, which is suitable for PD regulation, and a small change of the output voltage of the second half, which is suitable for PI regulation;
as shown in fig. 4, when the output end is connected to a load or discharges for a long time, two (multi-path) output voltages are collected and weighted and negatively fed back according to the weight ratio of the output voltages; PID control is carried out after comparison with the reference output voltage, and PID regulation is carried out again after comparison with the circuit inductance current; the regulated signal is transmitted into the microcontroller together with a signal obtained by comparing the power supply input voltage feedforward with the rated voltage, and finally a PWM (pulse-width modulation) wave control voltage-variable circuit is generated to regulate the switch tube and the coupling inductor so as to achieve the purpose of stabilizing the output voltage;
FIG. 5 is a voltage waveform diagram of an output port without input voltage feedforward and output voltage feedback control;
fig. 6 is a voltage waveform diagram of the output port of the present invention, it can be seen that the output voltage of the present invention has stronger overshoot capability and better steady-state performance, the cross adjustment rate is lower, and different ports can output different levels of steady voltages;
fig. 7 is a schematic diagram showing the complete structure of the intelligent magnesium air battery of the present invention, which collects parameters such as voltage, current, temperature, etc. of the magnesium air emergency power supply, and further estimates the SOC of the emergency power supply; when parameters such as voltage, current and temperature of the emergency power supply are detected to be abnormal, an alarm is used for giving an alarm, and the emergency power supply is subjected to fault protection by the discharge protection module; the voltage, the current, the temperature, the SOC and the output voltages with different grades generated by the overvoltage conversion circuit are displayed in real time in the display screen; the magnesium plate and the electrolyte are continuously consumed in the continuous discharging process of the emergency power supply, the internal resistance of the battery is continuously increased, the concentration of the saline water serving as the electrolyte is reduced, the index is established by monitoring the internal resistance of the battery and the concentration of the electrolyte, when the emergency power supply is basically discharged or is not used for a long time, an alarm is given out, the microcontroller controls the water suction pump to replace the electrolyte, the magnesium plate is cleaned or replaced when the voltage output is insufficient after the emergency power supply is used for multiple times, and the effect of emergency use is achieved.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.
Claims (6)
1. The utility model provides an intelligent magnesium air battery, includes voltage output circuit, its characterized in that: the voltage output circuit comprises a voltage transformation circuit and a control circuit;
the voltage transformation circuit comprises an inversion resonance circuit, a voltage transformation circuit, a rectification filter circuit and a gain unit; the input end of the inversion resonant circuit is connected with the output end of the magnesium air battery, the output end of the inversion resonant circuit is connected with the input end of the rectification filter circuit, and the input end of the gain unit is connected with the output end of the rectification filter circuit;
the control circuit comprises an output feedback circuit, a microcontroller and a PWM control circuit; the output feedback circuit comprises a weighting control module, a first PID control module and a second PID control module, and the output feedback circuit performs weighting control after acquiring the voltage at the output end; one end of the weighting control module receives output voltages of a Vout1 end and a Vout2 end of the gain unit, and the other end of the weighting control module is connected to the input end of the first PID control module; the output end of the first PID control module and the output end of the gain unit are connected with the input end of the second PID control module;
the voltage output circuit also comprises a signal transmission relation between the control circuit and the voltage transformation circuit.
2. The intelligent magnesium-air battery according to claim 1, wherein: the inverter resonant circuit comprises a switching tube Q1, a switching tube Q2, a switching tube Q3, a switching tube Q4, a resistor R1, an inductor L1 and a capacitor C6, wherein the drain end of the switching tube Q1 is electrically connected with the positive end of the magnesium air battery 1; the drain end of the switching tube Q3 is electrically connected with the source end of the switching tube Q1, and the source end of the switching tube Q3 is electrically connected with the cathode end of the battery; the drain end of the switching tube Q2 is electrically connected with the positive electrode end of the battery; the drain terminal of the switching tube Q4 is electrically connected with the source terminal of the switching tube Q2, and the source terminal of the switching tube Q4 is electrically connected with the cathode terminal of the battery; one end of the resistor R1 is electrically connected with a source end of the switching tube Q1, the other end of the resistor R1 is connected with an inductor L1 point, and two ends of the inductor L1 are respectively and electrically connected with the resistor R1 and the capacitor C6; the inverter resonant circuit further comprises a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4, wherein the four capacitors are respectively electrically connected with the drain end and the source end of the switch tube Q1, the switch tube Q2, the switch tube Q3 and the switch tube Q4.
3. The intelligent magnesium-air battery according to claim 1, wherein: the voltage conversion circuit comprises a transformer T1, one interface of the input end of the transformer T1 is electrically connected with a capacitor C6, and the other interface is electrically connected with the drain end of a switching tube Q4.
4. The intelligent magnesium-air battery according to claim 1, wherein: the rectification filter circuit comprises a full-wave bridge rectifier D7, a full-wave bridge rectifier D8, a coupling inductor L2, a coupling inductor L5, a diode D1, a diode D4, a capacitor C7, a capacitor C10, a resistor R2, a resistor R3, a resistor R5 and a resistor R6; the full-wave bridge rectifier D7 and the full-wave bridge rectifier D8 are respectively electrically connected with two output ends of the transformer T1; two ends of a coupling inductor L2 are respectively and electrically connected with the positive end of a diode D1 and a full-wave bridge rectifier D7, and a coupling inductor L5 is respectively and electrically connected with the positive end of a diode D4 and a full-wave bridge rectifier D8; the cathode end of the diode D1 is electrically connected with one end of the capacitor C7 and one end of the resistor R3 respectively; the cathode end of the diode D4 is electrically connected with one end of the capacitor C10 and one end of the resistor R6 respectively; the other end of the capacitor C7 is electrically connected with one end of the resistor R2, and the other end of the capacitor C10 is electrically connected with one end of the resistor R5; the other ends of the resistor R2 and the resistor R3 are electrically connected with a full-wave bridge rectifier D7, the other ends of the resistor R5 and the resistor R6 are electrically connected with a full-wave bridge rectifier D8, and the transformer T1 adopts two or more output ends.
5. The intelligent magnesium-air battery according to claim 1, wherein: the gain unit comprises a switching tube Q6, a switching tube Q7, a diode D2, a diode D3, a diode D5, a diode D6, an inductor L3, an inductor L4, an inductor L6, an inductor L7, a capacitor C8, a capacitor C9, a capacitor C11, a capacitor C12, a resistor R4 and a resistor R7; the drain end of the switching tube Q6 is electrically connected with the negative end of the D1, and the drain end of the switching tube Q7 is electrically connected with the negative end of the D4; one end of the inductor L3 is electrically connected with a source end of the switch tube Q6, the other end of the inductor L3 is electrically connected with a negative electrode end of the resistor R3, one end of the inductor L6 is electrically connected with a source end of the switch tube Q7, and the other end of the inductor L6 is electrically connected with a negative electrode end of the resistor R6; one end of an inductor L4 is electrically connected with a source terminal of a switching tube Q6 and a negative terminal of a diode D2 respectively, the other end of the inductor L4 is electrically connected with one end of a capacitor C8, the other end of the capacitor C8 is electrically connected with a negative terminal of a resistor R3, one end of an inductor L7 is electrically connected with a source terminal of a switching tube Q7 and a negative terminal of a diode D5 respectively, the other end of the inductor L7 is electrically connected with one end of a capacitor C11, and the other end of the capacitor C11 is electrically connected with a negative terminal of a resistor R6; one end of the diode D3 is electrically connected with the positive end of the inductor L3, and the other end of the diode D3 is electrically connected with the negative end of the inductor L4; one end of a capacitor C9 is electrically connected with the positive end of the diode D2, the other end of the capacitor C9 is electrically connected with the negative end of the resistor R3, one end of a capacitor C12 is electrically connected with the positive end of the diode D5, and the other end of the capacitor C12 is electrically connected with the negative end of the resistor R6; the resistor R4 is connected in parallel at two ends of the capacitor C9, the resistor R7 is connected in parallel at two ends of the capacitor C12, wherein one end of the capacitor C5 is connected with the anode of the magnesium air battery, the other end of the capacitor C5 is grounded, the PWM control circuit 9 is respectively connected with the grid terminals of the switch tube Q1, the switch tube Q2, the switch tube Q3, the switch tube Q4, the switch tube Q6, the switch tube Q7 and the switch tube Q8, the duty ratio of the PWM control circuit can be adjusted between 0 and 1, and one end of the resistor R4 and one end of the resistor R7 are circuit voltage output ends.
6. An intelligent magnesium-air battery as claimed in claim 1, wherein: the input end of the microcontroller is connected with the output end of a PID control module in the output feedback circuit, and the output end of the microcontroller is connected with the input end of the PWM control circuit; the output end of the PWM control circuit is connected to switching tubes Q1, Q2, Q3, Q4, Q6 and Q7 of the inversion resonance circuit and the gain unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220572049.4U CN218242004U (en) | 2022-03-16 | 2022-03-16 | Intelligent magnesium air battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220572049.4U CN218242004U (en) | 2022-03-16 | 2022-03-16 | Intelligent magnesium air battery |
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| Publication Number | Publication Date |
|---|---|
| CN218242004U true CN218242004U (en) | 2023-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220572049.4U Active CN218242004U (en) | 2022-03-16 | 2022-03-16 | Intelligent magnesium air battery |
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| CN (1) | CN218242004U (en) |
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