CN209072370U - A kind of single phase bidirectional AC-DC charge-discharge circuit - Google Patents
A kind of single phase bidirectional AC-DC charge-discharge circuit Download PDFInfo
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- CN209072370U CN209072370U CN201821693392.4U CN201821693392U CN209072370U CN 209072370 U CN209072370 U CN 209072370U CN 201821693392 U CN201821693392 U CN 201821693392U CN 209072370 U CN209072370 U CN 209072370U
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Abstract
The utility model discloses a kind of single phase bidirectional AC-DC charge-discharge circuits, belong to electronic circuit field, including EMI filter circuit, rectification circuit, full-bridge circuit topological circuit, output filter circuit, voltage and current Acquisition Circuit, analog to digital conversion circuit, driving circuit, PWM generation circuit, busbar voltage detection circuit, pole-zero compensation circuit I, pfc circuit, pole-zero compensation circuit II, divider circuit, pole-zero compensation circuit III and control circuit.Not only circuit is simple for the AC-DC bi-directional power of the utility model, and processing has also been made to various interference, reduces circuit cost, reduce circuit ripple, so that circuit system stablize, each electronic device not only AC-DC or DC-AC can realized value, realization circuit maximal efficiency.
Description
Technical field
The utility model relates to electronic circuit field more particularly to a kind of single phase bidirectional AC-DC charge-discharge circuits.
Background technique
It comes into being at present in face of energy crisis and the protection to environment, new energy.
AC-DC circuit is to mostly use Boost circuit, circuit can be improved in this way AC rectification at direct current
Power.Meanwhile for increase power factor, reduce harmonic current, the research of PFC (power factor correct) circuit
Also paid attention to application.Relative to traditional pfc circuit, non-bridge PFC eliminates the rectifier bridge of prime, so that the effect of circuit
Rate is promoted.Energy system based on two-way AC-DC converter not only has efficient efficiency of energy utilization, and can be real
The recycling and reusing of existing DC side energy, realizes the efficient utilization of the energy.DC-AC circuit is by DC inverter into exchange
Electricity, to be used for module or equipment.
Digital power is implemented increasingly complex nonlinear prediction and self adaptive control in the higher situation of switching frequency and is calculated
Method, to enable power supply design realize more preferably efficiency and power specification, so digital power has more prospect than analog power.But
It is in current unidirectional non-bridge PFC circuits, common mode interference is serious, in order to preferably apply non-bridge PFC come while realizing rectification
Energy can two-way flow, do not cause energy loss, and inversion can be realized on the basis of this circuit topology, realize design
One charge and discharge system is critically important.
Utility model content
The purpose of this utility model is to provide a kind of single phase bidirectional AC-DC charge-discharge circuits, solve existing two-way AC-DC
The technical problem that charge-discharge modules are inefficient, stability is poor.
A kind of single phase bidirectional AC-DC charge-discharge circuit, including EMI filter circuit, rectification circuit, full-bridge circuit topology electricity
Road, output filter circuit, voltage and current Acquisition Circuit, analog to digital conversion circuit, driving circuit, PWM generation circuit, busbar voltage inspection
Slowdown monitoring circuit, pole-zero compensation circuit I, pfc circuit, pole-zero compensation circuit II, divider circuit, III and of pole-zero compensation circuit
Control circuit；
The input terminal of the rectification circuit is connect with power input, and output end and the full-bridge circuit of the rectification circuit are opened up
The input terminal connection of circuit is flutterred, the output end of the full-bridge circuit topological circuit is connect with output filter circuit, the EMI filtering
The input terminal of rectification circuit is arranged in circuit, and the collection terminal of the voltage and current Acquisition Circuit and the input terminal of rectification circuit connect
It connecing, the driving circuit is connect with full-bridge circuit topological circuit, and the output end of the PWM generation circuit is connect with driving circuit,
The collection terminal of the busbar voltage detection circuit and the output end of output filter circuit connect, the input of analog-digital conversion circuit as described
End with voltage and current Acquisition Circuit and busbar voltage detection circuit connection, the output end of analog-digital conversion circuit as described respectively with zero pole
Point compensation circuit I, pfc circuit and pole-zero compensation circuit II connect, and the pole-zero compensation circuit I is through pfc circuit and zero pole
Point compensation circuit II connects, and the pole-zero compensation circuit II, divider circuit and pole-zero compensation circuit III are generated with PWM
Circuit connection, the control circuit are electric with EMI filter circuit, pole-zero compensation circuit I, pfc circuit, zero pole point compensation respectively
Road II, divider circuit and pole-zero compensation circuit III connect.
Further, the rectification circuit is made of inductance L1, L2, and described inductance L1, L2 are connected to input terminal
On positive and negative anodes.
Further, the full-bridge circuit topological circuit include power switch tube Q1, Q2, Q3, Q4 and power diode D1,
D2, D3, D4, the power diode D1 are connected in parallel on drain electrode and the source electrode both ends of power switch tube Q1, the power diode D2
Be connected in parallel on drain electrode and the source electrode both ends of power switch tube Q2, the power diode D3 be connected in parallel on power switch tube Q3 drain electrode and
Source electrode both ends, the power diode D4 are connected in parallel on drain electrode and the source electrode both ends of power switch tube Q4, the power switch tube Q1
Source electrode connect with the drain electrode of power switch tube Q2, the drain electrode of the source electrode of the power switch tube Q3 and power switch tube Q4 connect
It connects, the drain electrode of the power switch tube Q1 and power switch tube Q3 drain electrode connect, the source electrode and power of the power switch tube Q2
The connection of switching tube Q4 source electrode.
Further, the output filter circuit includes power inductance Lo, output capacitance Cr, LC and resistance R, the power
The one end inductance Lo is connect with bridge circuit topological circuit, and the other end is connect with one end of output capacitance Cr, LC and resistance R, described
Output capacitance Cr, LC and resistance R are arranged in parallel.
Further, the utility model further includes zero cross detection circuit, the test side of the zero cross detection circuit and rectification
The input terminal of circuit connects, and the output end of the zero cross detection circuit connects to the control circuit.
Further, the voltage and current Acquisition Circuit includes voltage collection circuit and current collection circuit, the voltage
The collection terminal of Acquisition Circuit and current collection circuit is connect with the input terminal of rectification circuit, and output end is and analog to digital conversion circuit
Connection.
The utility model uses above-mentioned technical proposal, and the utility model has following technical effect that
Not only circuit is simple for the AC-DC bi-directional power of the utility model, has also been made processing to various interference, reduction circuit at
This, reduces circuit ripple, so that circuit system is stablized, each electronic device can not only be realized in AC-DC or DC-AC
Value realizes circuit maximal efficiency.
Detailed description of the invention
Fig. 1 is the integrated circuit schematic diagram of the utility model.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, referring to the drawings and enumerate excellent
Embodiment is selected, the utility model is further described.However, it is necessary to illustrate, many details listed in specification
It is specific even without these just for the sake of making reader have a thorough explanation to the one or more aspects of the utility model
Details also may be implemented the utility model these aspect.
As shown in Figure 1, a kind of single phase bidirectional AC-DC charge-discharge circuit, including EMI filter circuit, rectification circuit, full-bridge electricity
Road topological circuit, output filter circuit, voltage and current Acquisition Circuit, analog to digital conversion circuit, driving circuit, PWM generation circuit, mother
Line voltage detection circuit, pole-zero compensation circuit I, pfc circuit, pole-zero compensation circuit II, divider circuit, zero pole point are mended
Repay circuit III and control circuit；
The input terminal of the rectification circuit is connect with power input, and output end and the full-bridge circuit of the rectification circuit are opened up
The input terminal connection of circuit is flutterred, the output end of the full-bridge circuit topological circuit is connect with output filter circuit, the EMI filtering
The input terminal of rectification circuit is arranged in circuit, and the collection terminal of the voltage and current Acquisition Circuit and the input terminal of rectification circuit connect
It connecing, the driving circuit is connect with full-bridge circuit topological circuit, and the output end of the PWM generation circuit is connect with driving circuit,
The collection terminal of the busbar voltage detection circuit and the output end of output filter circuit connect, the input of analog-digital conversion circuit as described
End with voltage and current Acquisition Circuit and busbar voltage detection circuit connection, the output end of analog-digital conversion circuit as described respectively with zero pole
Point compensation circuit I, pfc circuit and pole-zero compensation circuit II connect, and the pole-zero compensation circuit I is through pfc circuit and zero pole
Point compensation circuit II connects, and the pole-zero compensation circuit II, divider circuit and pole-zero compensation circuit III are generated with PWM
Circuit connection, the control circuit are electric with EMI filter circuit, pole-zero compensation circuit I, pfc circuit, zero pole point compensation respectively
Road II, divider circuit and pole-zero compensation circuit III connect.
When rectification, PFC function is realized, when DC side energy content of battery needs pass to exchange side, by direct current
The electric energy feedback of battery side realizes the recycling and reusing of energy, avoids the loss of energy, improve energy to exchange side
Utilization rate.That is, can be realized the two-way flow of energy when realizing rectification mode, this energy feedback function will
There is irreplaceable effect of energy in battery forming process and battery charging and discharging application places.When we need inversion
When, i.e., DC voltage is reverse into alternating current to power supply to the device, circuit works in inverter mode, to realize emergency
Function.
Rectification mode has the function of the function of PFC and energy in bidirectional flow, and when busbar voltage is excessively high, energy is automatically inverse
Stream guarantees that ability is two-way.Inverter mode can be used as inverse of the DC into AC function.
The rectification circuit is made of inductance L1, L2, and described inductance L1, L2 are connected on the positive and negative anodes of input terminal.
The full-bridge circuit topological circuit includes power switch tube Q1, Q2, Q3, Q4 and power diode D1, D2, D3, D4, the power
Diode D1 is connected in parallel on drain electrode and the source electrode both ends of power switch tube Q1, and the power diode D2 is connected in parallel on power switch tube Q2
Drain electrode and source electrode both ends, the power diode D3 be connected in parallel on drain electrode and the source electrode both ends of power switch tube Q3, the power
Diode D4 is connected in parallel on drain electrode and the source electrode both ends of power switch tube Q4, the source electrode and power switch tube of the power switch tube Q1
The drain electrode of Q2 connects, and the source electrode of the power switch tube Q3 is connect with the drain electrode of power switch tube Q4, the power switch tube Q1
Drain electrode and power switch tube Q3 drain electrode connect, the source electrode of the power switch tube Q2 connect with power switch tube Q4 source electrode.Institute
Stating output filter circuit includes power inductance Lo, output capacitance Cr, LC and resistance R, the one end the power inductance Lo and bridge circuit
Topological circuit connection, the other end are connect with one end of output capacitance Cr, LC and resistance R, described output capacitance Cr, LC and resistance
R is arranged in parallel.
Power switch tube Q1, Q2, Q3, Q4 form full-bridge circuit topology and power inductance L1, L2, play the role of rectification.
4 described power diodes D1, D2, D3, the D4 are the body diodes inside switching tube, are used as afterflow.The power inductance L1
It is energy storage commutation inductance with power inductance L2, power inductance Lo is that output inductor and output capacitance Cr constitute LC filter,
Also can be used as DC-AC inversion to energy storage inductor, the capacitor Co is storage capacitor, and R is load, and EMI module is dry to reduce
It disturbs.Preliminary filling relay can shift to an earlier date energy storage for inductance, so that inductive current is in continuous mode, improve circuit stability.It is described
Switching tube Q1, Q2, Q3, Q4, can be metal-oxide-semiconductor or IGBT.
The utility model further includes zero cross detection circuit, the test side of the zero cross detection circuit and the input of rectification circuit
End connection, the output end of the zero cross detection circuit connect to the control circuit.The voltage and current Acquisition Circuit includes that voltage is adopted
The collection terminal of collector and current collection circuit, the voltage collection circuit and current collection circuit with the input of rectification circuit
End connection, output end are connect with analog to digital conversion circuit.
Judge that the positive negative cycle of the alternating current of input uses zero crossing detection module, so that it is transferred to main control module, it is main in this way
Control module software part can control to which inductance charge and discharge, thus raising efficiency.The PWM drive waveforms of full-bridge circuit use
Unipolarity mode, i.e. two switching tubes are in high frequency, and two switching tubes are in low frequency.
The capacitor Co is storage capacitor, and R is load, and EMI module is interfered to reduce.Preliminary filling relay can mention for inductance
Preceding energy storage improves circuit stability so that inductive current is in continuous mode.
Main control module uses digit chip, and digital power is better than analog power stability, the multiplier of analog power, difference
Device etc. can realize that the circuit made will not generate temperature drift, cost reduction etc., and control performance is also more superior with software algorithm.
PFC control strategy selects Average Current Control, has double -loop control, can be improved the bandwidth of system, so that system is more steady
Fixed, compensation control uses two 0. two pole compensators, even if good so that system in the case where heavy duty or load sudden change
Stablize.
The main control module can use DSP ARM chip.
The drive module and the PWM module of main control module electrical connection, while with switching tube Q1, Q2, Q3, the base stage of Q4
Electrical connection, so that master control control switch pipe.
Boost pfc circuit topology is two basic boost circuit compositions, uses double-inductance structure, so that handing in input
The positive period of galvanic electricity and negative cycle boost respectively, more stable using single inductive energy storage system compared with tradition.This non-bridge PFC knot
Structure common mode interference is serious, C1, and C2 is used to filter out interference.It is first rectified compared to conventionally employed rectifier circuit, this topology is without rectification
Bridge substantially increases circuit working efficiency.Since the driving method of switching tube is unipolarity, the driving side of inversion can also be used as
Formula, when the overtension of bus, energy being capable of adverse current in this way.Q1 and Q2 is in high frequency mode, and mutual symmetry, pays attention to wanting
Retain dead zone.The drive waveforms of Q3 and Q4 are also mutual symmetry, and frequency is power frequency, pay attention to retaining dead zone.Judge the friendship of input
The positive negative cycle of galvanic electricity uses zero crossing detection module, to be transferred to main control module, such main control module software section can be controlled
System is to which inductance charge and discharge, thus raising efficiency.Enable the Q3 and Q4 of switching tube that power frequency is followed to carry out work.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, can also make several improvements and retouch, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of single phase bidirectional AC-DC charge-discharge circuit, it is characterised in that: including EMI filter circuit, rectification circuit, full-bridge electricity
Road topological circuit, output filter circuit, voltage and current Acquisition Circuit, analog to digital conversion circuit, driving circuit, PWM generation circuit, mother
Line voltage detection circuit, pole-zero compensation circuit I, pfc circuit, pole-zero compensation circuit II, divider circuit, zero pole point compensation
Circuit III and control circuit；
The input terminal of the rectification circuit is connect with power input, output end and full-bridge circuit the topology electricity of the rectification circuit
The input terminal on road connects, and the output end of the full-bridge circuit topological circuit is connect with output filter circuit, the EMI filter circuit
The input terminal of rectification circuit is set, and the collection terminal of the voltage and current Acquisition Circuit and the input terminal of rectification circuit connect, institute
It states driving circuit to connect with full-bridge circuit topological circuit, the output end of the PWM generation circuit is connect with driving circuit, the mother
The collection terminal of line voltage detection circuit and the output end of output filter circuit connect, the input terminal and electricity of analog-digital conversion circuit as described
Current voltage Acquisition Circuit and busbar voltage detection circuit connection, the output end of analog-digital conversion circuit as described are compensated with zero pole point respectively
Circuit I, pfc circuit and pole-zero compensation circuit II connect, and the pole-zero compensation circuit I is compensated through pfc circuit and zero pole point
Circuit II connects, and the pole-zero compensation circuit II, divider circuit and pole-zero compensation circuit III connect with PWM generation circuit
Connect, the control circuit respectively with EMI filter circuit, pole-zero compensation circuit I, pfc circuit, pole-zero compensation circuit II, remove
Adder circuit and pole-zero compensation circuit III connect.
2. a kind of single phase bidirectional AC-DC charge-discharge circuit according to claim 1, it is characterised in that: the rectification circuit
It is made of inductance L1, L2, described inductance L1, L2 are connected on the positive and negative anodes of input terminal.
3. a kind of single phase bidirectional AC-DC charge-discharge circuit according to claim 1, it is characterised in that: the full-bridge circuit
Topological circuit includes power switch tube Q1, Q2, Q3, Q4 and power diode D1, D2, D3, D4, the power diode D1 parallel connection
Drain electrode and source electrode both ends in power switch tube Q1, the power diode D2 are connected in parallel on drain electrode and the source electrode of power switch tube Q2
Both ends, the power diode D3 are connected in parallel on drain electrode and the source electrode both ends of power switch tube Q3, and the power diode D4 is in parallel
The drain electrode of drain electrode and source electrode both ends in power switch tube Q4, the source electrode and power switch tube Q2 of the power switch tube Q1 connects
It connects, the source electrode of the power switch tube Q3 is connect with the drain electrode of power switch tube Q4, the drain electrode of the power switch tube Q1 and function
Rate switching tube Q3 drain electrode connection, the source electrode of the power switch tube Q2 are connect with power switch tube Q4 source electrode.
4. a kind of single phase bidirectional AC-DC charge-discharge circuit according to claim 1, it is characterised in that: the output filtering
Circuit includes power inductance Lo, output capacitance Cr, LC and resistance R, and the one end the power inductance Lo and bridge circuit topological circuit connect
It connects, the other end is connect with one end of output capacitance Cr, LC and resistance R, and described output capacitance Cr, LC and resistance R are arranged in parallel.
5. a kind of single phase bidirectional AC-DC charge-discharge circuit according to claim 1, it is characterised in that: further include zero passage inspection
Slowdown monitoring circuit, the test side of the zero cross detection circuit and the input terminal of rectification circuit connect, the output of the zero cross detection circuit
End connects to the control circuit.
6. a kind of single phase bidirectional AC-DC charge-discharge circuit according to claim 1, it is characterised in that: the voltage and current
Acquisition Circuit includes voltage collection circuit and current collection circuit, the collection terminal of the voltage collection circuit and current collection circuit
It is connect with the input terminal of rectification circuit, output end is connect with analog to digital conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693392.4U CN209072370U (en) | 2018-10-18 | 2018-10-18 | A kind of single phase bidirectional AC-DC charge-discharge circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821693392.4U CN209072370U (en) | 2018-10-18 | 2018-10-18 | A kind of single phase bidirectional AC-DC charge-discharge circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209072370U true CN209072370U (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821693392.4U Expired - Fee Related CN209072370U (en) | 2018-10-18 | 2018-10-18 | A kind of single phase bidirectional AC-DC charge-discharge circuit |
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| CN (1) | CN209072370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951098A (en) * | 2018-10-18 | 2019-06-28 | 广西师范大学 | One kind quickly isolating breaker and its control algolithm |
| CN117134681A (en) * | 2023-06-20 | 2023-11-28 | 合肥盎牛智能装备有限公司 | Motor driving device with bus voltage stabilizing function |
-
2018
- 2018-10-18 CN CN201821693392.4U patent/CN209072370U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109951098A (en) * | 2018-10-18 | 2019-06-28 | 广西师范大学 | One kind quickly isolating breaker and its control algolithm |
| CN109951098B (en) * | 2018-10-18 | 2024-03-15 | 阿斯通(山东)开关有限公司 | Quick isolation circuit breaker and control algorithm thereof |
| CN117134681A (en) * | 2023-06-20 | 2023-11-28 | 合肥盎牛智能装备有限公司 | Motor driving device with bus voltage stabilizing function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190705 Termination date: 20201018 |
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| CF01 | Termination of patent right due to non-payment of annual fee |