CN102355038B - High voltage direct current charger - Google Patents
High voltage direct current charger Download PDFInfo
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- CN102355038B CN102355038B CN201110300570.9A CN201110300570A CN102355038B CN 102355038 B CN102355038 B CN 102355038B CN 201110300570 A CN201110300570 A CN 201110300570A CN 102355038 B CN102355038 B CN 102355038B
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Abstract
The embodiment of the invention provides a high voltage direct current charger for charging power batteries with high direct current with high output capacity. The charger comprises a high voltage pulse output module, an alternating current-alternating current conversion module, an alternating current-direct current conversion module and a first master control module, wherein the high voltage pulse output module is used for converting three-phase alternating current to high voltage pulse and outputting the high voltage pulse; the alternating current-alternating current conversion module is connected with the output end of the high voltage pulse output module and is used for boosting the high voltage pulse output by the high voltage pulse output module and then outputting high voltage alternating current; the alternating current-direct current conversion module is connected with the output end of the alternating current-alternating current conversion module and is used for converting the high voltage alternating current output by the alternating current-alternating current conversion module to high voltage direct current and outputting the high voltage direct current; and the first master control module is connected with the alternating current-direct current conversion module and the high voltage pulse output module respectively and is used for receiving the voltage and current sampling feedback signals output by the alternating current-direct current conversion module and then controlling the high voltage pulse output module.
Description
Technical field
The present invention relates to field of power supplies, relate in particular to a kind of high voltage direct current charger.
Background technology
Electrobus, electric bus and electric motor coach etc. are the Green Travel vehicles of current relative energy-saving environmental protection, and the difference of these electric vehicles and oily powered vehicle is, they are supporting dynamic storage battery all.The supporting power accumulator of electric tool can charge at originating point and terminal.Along with the lengthening of operation mileage, electric vehicle also may need to charge halfway, and charging station is the place that this function is provided.
The capital equipment of charging station is charger, and charger is the power inverter that has specific function of using when power accumulator is charged.The charge mode of charger has dividing of DC charging pattern and AC charging pattern, wherein, DC charging pattern is the pattern of directly power accumulator assembly being charged with the controllable direct current power supply of charger output, and corresponding DC charging motor is that employing DC charging pattern is the charger that electric vehicle power accumulator charges with it.
A kind of method that electric vehicle power accumulator is charged that prior art provides is: by the alternating current of electrical network, by Industrial Frequency Transformer, boost after rectification and obtain high voltage direct current, by after converting for power accumulator charges.The greatest drawback of this electric vehicle power accumulator charging method that prior art provides is, output capacity after high voltage direct current conversion is little, output current is little and system reliability is poor etc.
Summary of the invention
The embodiment of the present invention provides a kind of high voltage direct current charger, and the direct current high take output capacity, electric current is large is power accumulator charging.
The embodiment of the present invention provides a kind of high voltage direct current charger, described high voltage direct current charger comprises: high-voltage pulse output module, described high-voltage pulse output module comprises rectification module and DC-AC conversion module, described rectification module is exported for after described three-phase alternating current is transformed into direct current, described DC-AC conversion module, be connected with the first main control module, after the direct current of described rectification module output being transformed into the positive or negative high voltage pulse of different duty, export; AC-AC conversion module, is connected with the output of described high-voltage pulse output module, after the high-voltage pulse of described high-voltage pulse output module output is boosted, exports High Level AC Voltage; AC-DC converter module, is connected with the output of described AC-AC conversion module, for the High Level AC Voltage of described AC-AC conversion module output is transformed to high voltage direct current output; The first main control module, is connected with described AC-DC converter module and described high-voltage pulse output module respectively, for receiving from after the voltage and current sample feedback signal of described AC-DC converter module, described high-voltage pulse output module being controlled; Described AC-AC conversion module comprises two capacitances and a high frequency transformer, described two capacitance parallel connections, and described high frequency transformer has the first secondary winding and the second secondary winding; Capacitance one end of described parallel connection is connected with described DC-AC conversion module, and the other end is connected with one end of the positive limit winding of described high frequency transformer, and described High Level AC Voltage is from described the first secondary winding and the output of the second secondary winding; Described high frequency transformer the first secondary winding and the second secondary windings in series are in described high-frequency rectification circuit.
The high voltage direct current charger providing from the invention described above embodiment, because AC-AC conversion module is exported High Level AC Voltage after the high-voltage pulse of high-voltage pulse output module output can being boosted, AC-DC converter module is transformed to high voltage direct current output by the High Level AC Voltage of AC-AC conversion module output again.Therefore, with prior art, the alternating current of electrical network is boosted after rectification and obtained high voltage direct current by Industrial Frequency Transformer, by the method for charging for power accumulator after converting, compare, the high voltage direct current charger that the embodiment of the present invention provides can output capacity be high, electric current is large or voltage is high direct current, met the charging requirement of the electric vehicle power accumulators such as electrobus, electric bus and electric motor coach.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in prior art or embodiment description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, can also obtain as these accompanying drawings other accompanying drawing.
Fig. 1 is the high voltage direct current charger structural representation that the embodiment of the present invention provides;
Fig. 2 is the high voltage direct current charger structural representation that another embodiment of the present invention provides;
Fig. 3 is the circuit topological structure schematic diagram of the AC-AC conversion module of Fig. 1 example;
Fig. 4 is the circuit topological structure schematic diagram of the AC-DC converter module of Fig. 1 example;
Fig. 5 is another topological structure schematic diagram of circuit of the AC-DC converter module of Fig. 1 example;
Fig. 6 is that the circuit of the AC-AC conversion module of Fig. 3 example and the AC-DC converter module of Fig. 5 example is connected topological schematic diagram;
Fig. 7 is the circuit topological structure schematic diagram of the rectification module of Fig. 2 example;
Fig. 8 is the circuit topological structure schematic diagram of the DC-AC conversion module of Fig. 2 example;
Fig. 9 is the high voltage direct current charger structural representation that another embodiment of the present invention provides;
Figure 10 is the structural representation of the first main control module of Fig. 1 example.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those skilled in the art obtain, belongs to the scope of protection of the invention.
Referring to accompanying drawing 1, is the high voltage direct current charger structural representation that the embodiment of the present invention provides.For convenience of explanation, only show the part relevant to the embodiment of the present invention.The high voltage direct current charger of accompanying drawing 1 example mainly comprises high-voltage pulse output module 101, AC-AC conversion module 102, AC-DC converter module 103 and the first main control module 104.
High-voltage pulse output module 101 receives the input of three-phase alternating current, exports after three-phase alternating current is transformed into high-voltage pulse.AC-AC conversion module 102 is connected with the output of high-voltage pulse output module 101, after the high-voltage pulse that described high-voltage pulse output module 101 is exported boosts, exports High Level AC Voltage.
In embodiments of the present invention, not that the High Level AC Voltage that high-voltage pulse output module 101 is exported is directly the power accumulator charging of electric vehicle, but the High Level AC Voltage that adopts AC-DC converter module 103 that high-voltage pulse output module 101 is exported is transformed into high voltage direct current, the power accumulator charging that the high voltage direct current that AC-DC converter module 103 is exported is electric vehicle.
The first main control module 104 is connected with AC-DC converter module 103 and high-voltage pulse output module 101 respectively.The high voltage direct current signal of telecommunication that can adopt senser element to export AC-DC converter module 103, for example, voltage or current sample.Voltage or current sample feed back to the first main control module 104.The first main control module 104 receives from described high-voltage pulse output module 101 being controlled after the voltage and current sample feedback signal of AC-DC converter module 103, for example, charge parameter, monitoring charged state and battery management system etc. is set.
In another embodiment, high-voltage pulse output module 101 further comprises rectification module 201 and DC-AC conversion module 202, as shown in Figure 2.Rectification module 201 exports DC-AC conversion module 202 to after three-phase alternating current being transformed into direct current, DC-AC conversion module 202 is connected with the first main control module 104, be mainly used under the control of the first main control module 104, by no-voltage, open zero-current switching (Zero Voltage Zero Current Switch, ZVZCS) phase shift, the direct current that rectification module 201 is exported is exported after being transformed into the positive or negative high voltage pulse of different duty.
The high voltage direct current charger providing from the invention described above embodiment, because AC-AC conversion module is exported High Level AC Voltage after the high-voltage pulse of high-voltage pulse output module output can being boosted, AC-DC converter module is transformed to high voltage direct current output by the High Level AC Voltage of AC-AC conversion module output again.Therefore, with prior art, the alternating current of electrical network is boosted after rectification and obtained high voltage direct current by Industrial Frequency Transformer, by the method for charging for power accumulator after converting, compare, the high voltage direct current charger that the embodiment of the present invention provides can output capacity be high, electric current is large or voltage is high direct current, met the charging requirement of the electric vehicle power accumulators such as electrobus, electric bus and electric motor coach.
Referring to accompanying drawing 3, is the circuit topological structure schematic diagram of the AC-AC conversion module 102 of accompanying drawing 1 example.For convenience of explanation, only show the part relevant to the embodiment of the present invention.The AC-AC conversion module 102 of accompanying drawing 3 examples comprises two capacitances and a high frequency transformer T, and two capacitances are respectively capacitance C12 and capacitance C11.Capacitance C12 and capacitance C11 are connected in parallel, and capacitance C12 in parallel is connected with the DC-AC conversion module 202 of Fig. 2 example with capacitance C11 one end, and the other end is connected with one end of the positive limit winding of high frequency transformer T.High frequency transformer T has two secondary windings, is respectively the first secondary winding and the second secondary winding, and AC-AC conversion module 102 converts the High Level AC Voltage of gained from the first secondary winding and the output of the second secondary winding.
Referring to accompanying drawing 4, is the circuit topological structure schematic diagram of the AC-DC converter module 103 of accompanying drawing 1 example.For convenience of explanation, only show the part relevant to the embodiment of the present invention.AC-DC converter module 103 comprises high-frequency rectification circuit 401, clamp circuit 402 and auxiliary circuit 403 etc., wherein, the input of high-frequency rectification circuit 401 is connected with two secondary windings of the high frequency transformer T of accompanying drawing 3 examples, for exporting after the high-voltage alternating electric rectification of high frequency transformer T output, the input of clamp circuit 402 is connected with the output of high-frequency rectification circuit 401, is mainly used in the rectified signal of high frequency transformer T output to carry out clamper.AC-DC converter module 103 more specifically circuit structure is consulted accompanying drawing 5, is described in detail as follows:
The high-frequency rectification circuit 401 of accompanying drawing 4 examples comprises fast recovery diode D1, fast recovery diode D2, fast recovery diode D3, fast recovery diode D4, fast recovery diode D5, fast recovery diode D6, fast recovery diode D7 and fast recovery diode D8, clamp circuit 402 comprises fast recovery diode D9, fast recovery diode D10, resonant capacitance C1 and resonance capacitor C 2, auxiliary circuit 403 comprises fast recovery diode D11, fast recovery diode D12, radio-frequency rector L1, radio-frequency rector L2, output filter capacitor plate E1, output filter capacitor plate E2, Hall current sensor SI1, direct current quick fuse resistance F1, resistance R 4, K switch M1 and K switch M2 etc.
In high-frequency rectification circuit 401, after being connected with the negative pole of fast recovery diode D2, the positive pole of fast recovery diode D1 forms the first series diode group, after being connected with the negative pole of fast recovery diode D4, the positive pole of fast recovery diode D3 forms the second series diode group, wherein, the negative pole of the negative pole of fast recovery diode D1 and fast recovery diode D3 connects and composes the positive pole of node N1, fast recovery diode D2 and the positive pole of fast recovery diode D4 connects and composes node N2, that is, the first series diode group and the first series diode group parallel connection; After being connected with the negative pole of fast recovery diode D6, the positive pole of fast recovery diode D5 forms the 3rd series diode group, after being connected with the negative pole of fast recovery diode D8, the positive pole of fast recovery diode D7 forms the 4th series diode group, wherein, the negative pole of the negative pole of fast recovery diode D5 and fast recovery diode D7 connects and composes the positive pole of node N3, fast recovery diode D6 and the positive pole of fast recovery diode D8 connects and composes node N4, that is, the 3rd series diode group and the 4th series diode group parallel connection.
In clamp circuit 402, after the positive pole of fast recovery diode D9 is connected with one end of resonant capacitance C1, in parallel with the first series diode group or the second series diode group,, the other end that the negative pole of fast recovery diode D9 is connected to node N1, resonant capacitance C1 is connected to node N2, after the negative pole of fast recovery diode D10 is connected with one end of resonant capacitance C2, in parallel with the 3rd series diode group or the 4th series diode group, that is the other end that, the positive pole of fast recovery diode D10 is connected to node N4, resonant capacitance C2 is connected to node N3.
The negative pole of the fast recovery diode D11 of auxiliary circuit 403 is connected with the positive pole of the fast recovery diode D9 of clamp circuit 402, one end of radio-frequency rector L1 is connected to node N2, the positive pole of output filter capacitor plate E1 is connected to node N1, the positive pole of fast recovery diode D12 is connected with the negative pole of the fast recovery diode D10 of clamp circuit 402, one end of radio-frequency rector L2 is connected to node N3, the negative pole of output filter capacitor plate E2 is connected to node N4, the positive pole of fast recovery diode D11, the other end (being that radio-frequency rector L1 is except being connected to one end of node N2) of radio-frequency rector L1, the negative pole of output filter capacitor plate E1, the negative pole of fast recovery diode D12, the other end (being that radio-frequency rector L2 is except being connected to one end of node N3) and the positive pole of output filter capacitor plate E2 of radio-frequency rector L2 connect and compose node N5.
From the circuit topological structure of the AC-DC converter module 103 of accompanying drawing 5 examples, AC-DC converter module is through state's high-frequency rectification, LC filtering, the output ripple coefficient of the high voltage direct current of output is very low, is of value to the useful life that extends the power accumulator being charged.
As shown in Figure 6, be that the AC-AC conversion module 102 of accompanying drawing 3 examples and AC-DC converter module 103 circuit of accompanying drawing 5 examples are connected topological schematic diagram.In accompanying drawing 6, two secondary windings (i.e. the first secondary winding and the second secondary winding) of high frequency transformer T are series in high-frequency rectification circuit 401,, one end of the first secondary winding of high frequency transformer T is connected with the positive pole of fast recovery diode D1, the other end of the first secondary winding of high frequency transformer T is connected with the positive pole of fast recovery diode D3, one end of the second secondary winding of high frequency transformer T is connected with the positive pole of fast recovery diode D5, and the other end of the second secondary winding of high frequency transformer T is connected with the positive pole of fast recovery diode D7.
The AC-AC conversion module 102 of illustrating from accompanying drawing 6 is connected topology with AC-DC converter module 103 circuit, because two secondary windings in series of high frequency transformer T are in high-frequency rectification circuit, therefore, the high voltage direct current charger that the embodiment of the present invention provides can be exported 2 times to the direct voltage of 1 secondary winding rectification output, and clamp circuit adopts passive clamping technology to high-frequency rectification circuit, can effectively suppress the circulation between each functional module of high voltage direct current charger that the embodiment of the present invention provides.
Referring to accompanying drawing 7, is the circuit topological structure schematic diagram of the rectification module 201 of accompanying drawing 2 examples.For convenience of explanation, only show the part relevant to the embodiment of the present invention.The rectification module 201 of accompanying drawing 2 examples adopts half control three phase rectifier, comprises thyristor T1, thyristor T2 and thyristor T3, and each thyristor can be that model is the thyristor of MCD95-16IO08B, and the annexation of each components and parts is as follows:
The gate pole of thyristor T1, the gate pole of thyristor T2 are connected with the gate pole of thyristor T3 and form node N6, the emitter of thyristor T1, the emitter of thyristor T2 are connected with the emitter of thyristor T3 and form node N7, node N6 and node node N7 are each thyristor triggering signal access points, receive the triggering signal of main control module, the pin 2 of the pin 2 of thyristor T1, the pin 2 of thyristor T2 and thyristor T3 is connected and forms node N ' 7, and the pin 3 of the pin 3 of thyristor T1, the pin 3 of thyristor T2 and thyristor T3 is connected and forms node N8;
The pin 1 of the pin 1 of thyristor T1, the pin 1 of thyristor T2 and thyristor T3 receives respectively the input of U phase, V phase and the W cross streams electricity of three-phase alternating current, and the direct current obtaining after rectification is from node N ' 7 and node N8 output.
Referring to accompanying drawing 8, is the circuit topological structure schematic diagram of the DC-AC conversion module 202 of accompanying drawing 2 examples.For convenience of explanation, only show the part relevant to the embodiment of the present invention.The DC-AC conversion module 202 of accompanying drawing 2 examples comprises discharge resistance R3, storage capacitor E9, insulated gate bipolar transistor Q7, insulated gate bipolar transistor Q8, insulated gate bipolar transistor Q9, insulated gate bipolar transistor Q10, noninductive Absorption Capacitance C6, noninductive Absorption Capacitance C7, noninductive Absorption Capacitance C8 and noninductive Absorption Capacitance C9.The direct current of rectification module output is from the collector electrode of insulated gate bipolar transistor Q7 or the emitter of the collector electrode of insulated gate bipolar transistor Q8 and insulated gate bipolar transistor Q9 or the input of the emitter of insulated gate bipolar transistor Q10, and the annexation of each components and parts is as follows:
The emitter of insulated gate bipolar transistor Q7 is connected with the collector electrode of insulated gate bipolar transistor Q9, the emitter of insulated gate bipolar transistor Q8 is connected with the collector electrode of insulated gate bipolar transistor Q10, and the emitter of insulated gate bipolar transistor Q7 is connected with the collector electrode of insulated gate bipolar transistor Q9 and the emitter of insulated gate bipolar transistor Q8 is in parallel with discharge resistance R3, storage capacitor E9, noninductive Absorption Capacitance C6, noninductive Absorption Capacitance C7 after being connected with the collector electrode of insulated gate bipolar transistor Q10;
The collector electrode of one end of discharge resistance R3, one end of storage capacitor E9, insulated gate bipolar transistor Q7, the collector electrode of insulated gate bipolar transistor Q8, one end of noninductive Absorption Capacitance C6 and one end of noninductive Absorption Capacitance C7 link together and form node N9, and the other end of emitter, the emitter of insulated gate bipolar transistor Q10 and the other end of noninductive Absorption Capacitance C6 and the noninductive Absorption Capacitance C7 of the other end of discharge resistance R3, the other end of storage capacitor E9, insulated gate bipolar transistor Q9 links together and forms node N10;
One end of noninductive Absorption Capacitance C8, one end of noninductive Absorption Capacitance C9 and the emitter of insulated gate bipolar transistor Q7 or the collector electrode of the insulated gate bipolar transistor Q9 configuration node N11 that links together, the other end that the other end of noninductive Absorption Capacitance C8 is connected to described node N9, noninductive Absorption Capacitance C9 is connected to node N10;
The emitter of insulated gate bipolar transistor Q8 is drawn the output being connected with one end of the positive limit winding of the AC-AC conversion module 102 medium/high frequency transformer T of accompanying drawing 3 examples, the collector electrode of insulated gate bipolar transistor Q9 is drawn the output being connected with one end of capacitance (being capacitance C12 and capacitance C11) in parallel in the AC-AC conversion module 102 of accompanying drawing 3 examples, , the emitter of insulated gate bipolar transistor Q8 is connected with one end of the positive limit winding of the AC-AC conversion module 102 medium/high frequency transformer T of accompanying drawing 3 examples, the collector electrode of insulated gate bipolar transistor Q9 is drawn with one end (other end is connected to the other end of the positive limit winding of high frequency transformer T) of capacitance in parallel in the AC-AC conversion module 102 of accompanying drawing 3 examples and is connected.
From the circuit topological structure of AC-AC conversion module 102 of accompanying drawing 3 examples and the DC-AC conversion module 202 of accompanying drawing 8 examples extremely annexation of circuit topological structure, the high voltage direct current charger that the embodiment of the present invention provides utilizes the leakage inductance of noninductive Absorption Capacitance and high frequency transformer from dynamic resonance, realize insulated gate bipolar transistor (IGBT) and open zero-current switching for no-voltage, switch power consumption approaches zero, and insulated gate bipolar transistor temperature rise is very low.Therefore high voltage direct current charger useful life, reliability that, the embodiment of the present invention provides are improved greatly; On the other hand, the main circuit of the high voltage direct current charger that the embodiment of the present invention provides is electric current and voltage type LC resonance, and therefore, electric energy efficiency is also greatly improved.
The high voltage direct current charger that accompanying drawing 2 provides to the arbitrary embodiment of accompanying drawing 8 can further include the second master control system 901, the high voltage direct current charger that another embodiment of the present invention provides as shown in Figure 9.The second main control module 901 is connected with rectification module 201 with node N ' 7 by node N6, node N7, receives rectification module 201 and by node N6 and node N7, rectification module 201 is controlled from the voltage and current sample feedback signal of described node N ' 7 outputs.Particularly, the second 901 of main control modules triggering signal, by node N6 and node N7 input thyristor T1, thyristor T2 and thyristor T3, thyristor T1, thyristor T2 and thyristor T3 conducting, the direct current that rectification obtains is from node N ' 7 and node N8 output.
The central processing element of the first main control module 104 of accompanying drawing 1 example can be Digital Signal Processing (Digital Signal Processing, DSP) chip.The first main control module 104 of accompanying drawing 1 example mainly comprises that digital signal processing chip 1001, fault secure circuit 1002, feedback signal processing circuit 1003, communication interface circuit 1004 and pulse width modulated drive signal form and amplifying circuit 1005, wherein:
Digital signal processing chip 1001 is central control units, and other circuit are controlled;
Fault secure circuit 1002, be used for when the faults such as the inner excess temperature of high voltage direct current charger, input undervoltage, output overvoltage, output overcurrent, output short-circuit and battery reversal connection, to the first main control module 104, send fault-signal, the first main control module 104 is responded, turn-off pulse width modulated drive signal and cut off input power, and then the safety of protection equipment;
Feedback signal processing circuit 1003, for the treatment of the voltage or the current sample feedback signal that come from rectification module or AC-DC converter module;
Communication interface circuit 1004, for man-machine interface RS485 communication is provided, carries out the interface of CAN bus communication with BMS;
Pulse width modulated drive signal forms and amplifying circuit 1005, is used to form, strengthens the pulse-width signal that the first main control module 104 sends, and makes it enough driving forces and opens and close IGBT.
A kind of the high voltage direct current charger above embodiment of the present invention being provided is described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (6)
1. a high voltage direct current charger, is characterized in that, described high voltage direct current charger comprises:
High-voltage pulse output module, described high-voltage pulse output module comprises rectification module and DC-AC conversion module, described rectification module is exported for after three-phase alternating current is transformed into direct current, described DC-AC conversion module, be connected with the first main control module, after the direct current of described rectification module output being transformed into the positive or negative high voltage pulse of different duty, export;
AC-AC conversion module, is connected with the output of described high-voltage pulse output module, after the high-voltage pulse of described high-voltage pulse output module output is boosted, exports High Level AC Voltage;
AC-DC converter module, is connected with the output of described AC-AC conversion module, for the High Level AC Voltage of described AC-AC conversion module output is transformed to high voltage direct current output;
The first main control module, is connected with described AC-DC converter module and described high-voltage pulse output module respectively, for receiving from after the voltage and current sample feedback signal of described AC-DC converter module, described high-voltage pulse output module being controlled;
Described AC-AC conversion module comprises two capacitances and a high frequency transformer, described two capacitance parallel connections, and described high frequency transformer has the first secondary winding and the second secondary winding;
Described AC-DC converter module comprises high-frequency rectification circuit, clamp circuit and auxiliary circuit;
Capacitance one end of described parallel connection is connected with described DC-AC conversion module, and the other end is connected with one end of the positive limit winding of described high frequency transformer, and described High Level AC Voltage is from described the first secondary winding and the output of the second secondary winding;
Described high frequency transformer the first secondary winding and the second secondary windings in series are in described high-frequency rectification circuit;
The input of described high-frequency rectification circuit is connected with two secondary windings of described high frequency transformer, for exporting after the high-voltage alternating electric rectification of described high frequency transformer output;
The input of described clamp circuit is connected with the output of described high-frequency rectification circuit, for the rectified signal clamper to described high frequency transformer output.
2. high voltage direct current charger as claimed in claim 1, it is characterized in that, described high-frequency rectification circuit comprises fast recovery diode D1, fast recovery diode D2, fast recovery diode D3, fast recovery diode D4, fast recovery diode D5, fast recovery diode D6, fast recovery diode D7 and fast recovery diode D8, described clamp circuit comprises fast recovery diode D9, fast recovery diode D10, resonant capacitance C1 and resonance capacitor C 2, described auxiliary circuit comprises fast recovery diode D11, fast recovery diode D12, radio-frequency rector L1, radio-frequency rector L2, output filter capacitor plate E1 and output filter capacitor plate E2,
After being connected with the negative pole of described fast recovery diode D2, the positive pole of described fast recovery diode D1 forms the first series diode group, after being connected with the negative pole of fast recovery diode D4, the positive pole of described fast recovery diode D3 forms the second series diode group, described the first series diode group and described the second series diode group parallel connection, described in when described the first series diode group and described the second series diode group are in parallel, the negative pole of fast recovery diode D1 and the negative pole of described fast recovery diode D3 connect and compose node N1, the positive pole of the positive pole of described fast recovery diode D2 and described fast recovery diode D4 connects and composes node N2,
After being connected with the negative pole of described fast recovery diode D6, the positive pole of described fast recovery diode D5 forms the 3rd series diode group, after being connected with the negative pole of fast recovery diode D8, the positive pole of described fast recovery diode D7 forms the 4th series diode group, described the 3rd series diode group and described the 4th series diode group parallel connection, described in when described the 3rd series diode group and described the 4th series diode group are in parallel, the negative pole of fast recovery diode D5 and the negative pole of described fast recovery diode D7 connect and compose node N3, the positive pole of the positive pole of described fast recovery diode D6 and described fast recovery diode D8 connects and composes node N4,
After the positive pole of described fast recovery diode D9 is connected with one end of described resonant capacitance C1, the other end that the negative pole of described fast recovery diode D9 is connected to described node N1, described resonant capacitance C1 is connected to described node N2, after the negative pole of described fast recovery diode D10 is connected with one end of described resonant capacitance C2, the other end that the positive pole of described fast recovery diode D10 is connected to described node N4, described resonant capacitance C2 is connected to described node N3;
The negative pole of described fast recovery diode D11 is connected with the positive pole of described fast recovery diode D9, one end of described radio-frequency rector L1 is connected to described node N2, the positive pole of described output filter capacitor plate E1 is connected to described node N1, the positive pole of described fast recovery diode D12 is connected with the negative pole of described fast recovery diode D10, one end of described radio-frequency rector L2 is connected to described node N3, the negative pole of described output filter capacitor plate E2 is connected to described node N4, the positive pole of described fast recovery diode D11, the other end of described radio-frequency rector L1, the negative pole of described output filter capacitor plate E1, the negative pole of described fast recovery diode D12, the positive pole of the other end of described radio-frequency rector L2 and described output filter capacitor plate E2 connects and composes node N5.
3. high voltage direct current charger as claimed in claim 2, it is characterized in that, described high frequency transformer the first secondary winding is specially in described high-frequency rectification circuit with the second secondary windings in series: one end of described high frequency transformer the first secondary winding is connected with the positive pole of described fast recovery diode D1, the other end of described high frequency transformer the first secondary winding is connected with the positive pole of described fast recovery diode D3, one end of described high frequency transformer the second secondary winding is connected with the positive pole of described fast recovery diode D5, the other end of described high frequency transformer the second secondary winding is connected with the positive pole of described fast recovery diode D7.
4. high voltage direct current charger as claimed in claim 1, is characterized in that, described rectification module comprises thyristor T1, thyristor T2 and thyristor T3;
The gate pole of described thyristor T1, the gate pole of thyristor T2 are connected with the gate pole of thyristor T3 and form node N6, the emitter of described thyristor T1, the emitter of thyristor T2 are connected with the emitter of thyristor T3 and form node N7, the pin 2 of the pin 2 of described thyristor T1, the pin 2 of thyristor T2 and thyristor T3 is connected and forms node N ' 7, and the pin 3 of the pin 3 of described thyristor T1, the pin 3 of thyristor T2 and thyristor T3 is connected and forms node N8;
The pin 1 of the pin 1 of described thyristor T1, the pin 1 of described thyristor T2 and described thyristor T3 receives respectively U phase, V phase and the input of W cross streams electricity in described three-phase alternating current.
5. high voltage direct current charger as claimed in claim 1, it is characterized in that, described DC-AC conversion module comprises discharge resistance R3, storage capacitor E9, insulated gate bipolar transistor Q7, insulated gate bipolar transistor Q8, insulated gate bipolar transistor Q9, insulated gate bipolar transistor Q10, noninductive Absorption Capacitance C6, noninductive Absorption Capacitance C7, noninductive Absorption Capacitance C8 and noninductive Absorption Capacitance C9;
The emitter of described insulated gate bipolar transistor Q7 is connected with the collector electrode of described insulated gate bipolar transistor Q9, the emitter of described insulated gate bipolar transistor Q8 is connected with the collector electrode of described insulated gate bipolar transistor Q10, the emitter of described insulated gate bipolar transistor Q7 is connected with the collector electrode of described insulated gate bipolar transistor Q9 and the emitter of described insulated gate bipolar transistor Q8 is connected rear and described discharge resistance R3 with the collector electrode of described insulated gate bipolar transistor Q10, storage capacitor E9, noninductive Absorption Capacitance C6, noninductive Absorption Capacitance C7 parallel connection,
The collector electrode of one end of described discharge resistance R3, one end of storage capacitor E9, insulated gate bipolar transistor Q7, the collector electrode of insulated gate bipolar transistor Q8, one end of noninductive Absorption Capacitance C6 and one end of noninductive Absorption Capacitance C7 link together and form node N9, and the other end of emitter, the emitter of insulated gate bipolar transistor Q10 and the other end of noninductive Absorption Capacitance C6 and the noninductive Absorption Capacitance C7 of the other end of described discharge resistance R3, the other end of storage capacitor E9, insulated gate bipolar transistor Q9 links together and forms node N10;
One end of described noninductive Absorption Capacitance C8, one end of described noninductive Absorption Capacitance C9 and the emitter of described insulated gate bipolar transistor Q7 or the collector electrode of the described insulated gate bipolar transistor Q9 configuration node N11 that links together, the other end that the other end of described noninductive Absorption Capacitance C8 is connected to described node N9, described noninductive Absorption Capacitance C9 is connected to described node N10;
The emitter of described insulated gate bipolar transistor Q8 is drawn the output being connected with the other end of the positive limit winding of described high frequency transformer, and the collector electrode of described insulated gate bipolar transistor Q9 is drawn the output being connected with one end of the capacitance of described parallel connection.
6. high voltage direct current charger as claimed in claim 4, is characterized in that, described high voltage direct current charger also comprises the second main control module;
Described the second main control module is by described node N6, node N7 is connected with rectification module with node N ' 7, receive described rectification module controls described rectification module by described node N6 and node N7 from the voltage and current sample feedback signal of described node N ' 7 outputs, comprise: described the second main control module is sent out triggering signal, described in node N6 and node N7, input thyristor T1, described thyristor T2 and described thyristor T3, described thyristor T1, described thyristor T2 and described thyristor T3 conducting, the direct current that rectification obtains is from described node N ' 7 and described node N8 output.
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| CN103887860B (en) * | 2014-03-25 | 2016-07-13 | 王玉才 | A kind of simulate accumulator charging method and the charger that thunder and lightning energy storage is launch aed surprise attack |
| CN104135668B (en) * | 2014-06-27 | 2018-09-18 | 北京司响无限文化传媒有限公司 | There is provided and obtain the method and device of digital information |
| CN116572774A (en) * | 2017-06-02 | 2023-08-11 | 广州万城万充新能源科技有限公司 | Electric vehicle charging station based on high-voltage direct-current power distribution |
| CN108377007A (en) * | 2017-11-23 | 2018-08-07 | 全球能源互联网欧洲研究院 | A kind of electric vehicle DC charging system |
| CN111817368A (en) * | 2020-06-19 | 2020-10-23 | 中国人民解放军海军工程大学 | Multi-module series-parallel resonance high-voltage charging device |
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| CN2894030Y (en) * | 2006-03-27 | 2007-04-25 | 成黎明 | Charging device with maintenance and repair function |
| CN101013860A (en) * | 2006-12-21 | 2007-08-08 | 中国科学院电工研究所 | Charging equipment for high-voltage pulse capacitor |
| CN201122859Y (en) * | 2007-11-26 | 2008-09-24 | 谢步明 | DC 24V charger for rolling stock |
| CN202276177U (en) * | 2011-09-29 | 2012-06-13 | 株洲市达能科技有限公司 | High voltage direct current charger |
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| CN2894030Y (en) * | 2006-03-27 | 2007-04-25 | 成黎明 | Charging device with maintenance and repair function |
| CN101013860A (en) * | 2006-12-21 | 2007-08-08 | 中国科学院电工研究所 | Charging equipment for high-voltage pulse capacitor |
| CN201122859Y (en) * | 2007-11-26 | 2008-09-24 | 谢步明 | DC 24V charger for rolling stock |
| CN202276177U (en) * | 2011-09-29 | 2012-06-13 | 株洲市达能科技有限公司 | High voltage direct current charger |
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