CN103595246A - Dual-frequency control combined type three-phase three-level direct-current converter and control method thereof - Google Patents
Dual-frequency control combined type three-phase three-level direct-current converter and control method thereof Download PDFInfo
- Publication number
- CN103595246A CN103595246A CN201310549320.8A CN201310549320A CN103595246A CN 103595246 A CN103595246 A CN 103595246A CN 201310549320 A CN201310549320 A CN 201310549320A CN 103595246 A CN103595246 A CN 103595246A
- Authority
- CN
- China
- Prior art keywords
- switching tube
- phase
- voltage
- converter
- conducting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a dual-frequency control combined type three-phase three-level direct-current converter which comprises a three-level clamping unit and a three-phase full-bridge unit. The three-level clamping unit is connected with the three-phase full-bridge unit in a nested mode. The converter is of a three-phase three-level structure, can effectively reduce voltage and current rating of a switching tube, and is suitable for high-voltage high-power occasions. The invention further discloses a control method of the dual-frequency control combined type three-phase three-level direct-current converter. According to the method, two operating modes, namely a drop-voltage operating mode and a full-voltage operating mode are adopted, under the two operating modes, a symmetrical control mode and a asymmetrical control mode can be adopted in the three-phase full-bridge unit, output filter inductance can be effectively reduced under wide range input, and therefore voltage stress of a secondary rectifying tube can be reduced. The three-level clamping unit runs in a low-frequency state, hard switching is performed, the three-phase full-bridge unit runs in a high-frequency state, the switching tube can achieve zero-voltage switching, the switching loss is low, and the converter is high in efficiency.
Description
Technical field
Bi-frequency control Combined three phase three-level DC converter of the present invention and control method thereof, the DC converter of genus electrical energy changer.
Background technology
Along with power electronic technology development, the energy-efficient mainstream demand direction that becomes current power-supply system.In high power DC conversion occasion, in order to improve the universality of power-supply system or the wide fluctuations of adaptation electrical network, often need power-supply system also will meet wide change in voltage area requirement, to power system design, brought great challenge thus.The electric automobile station charging system of take is example, just input, and up-to-date SAE J1772-2009 standard provides two kinds of input power supply systems: Alternating Current Power Supply and direct current supply.Direct current supply standard is divided into three kinds of grades, and wherein direct current grade 3 input voltage ranges are 200V～600V, and following maximum input voltage may be promoted to thousands of volts, and it is even higher that maximum processing power will reach 240kW.Just output, State Grid Corporation of China is unified domestic charging system electric pressure, determine and adapt to all kinds of charging electric vehicle requirements by three kinds of direct voltages, be 350V, 500V and 700V, for improving charging system universality, following its output needs to cover each electric pressure, and this just requires station charging system should have wide voltage output characteristics.The power-supply system with similar feature also has the auxiliary direct current origin system in the electrical systems such as boats and ships, high-speed electrified line and urban track traffic, as in urban rail transit vehicles, pantagraph current collector is vehicle-mounted accessory power supply power supply from overhead contact line or the 3rd rail reception direct current energy, its power supply grid has 750V direct current and two kinds of systems of 1500V direct current, the former allows change in voltage scope is 500～900V, and it is 1000～1800V that the latter allows change in voltage scope; Employing 850～1250V the direct current that in ship power supply system there is supply voltage, the DC bus-bar voltage in high-speed electrified line is especially up to 2160～2600V.To sum up, in order to improve universality and the Universal electric performance of supply unit, above-mentioned power-supply system need meet many harsh requirements such as high-power output, high input/output voltage and wide input/output voltage.
Three-level converter can reduce the voltage stress of switching tube by increasing the quantity of switching tube, make it to be applicable to high input voltage occasion.Half-bridge three-level converter is one of isolated form three-level converter proposing the earliest, it have circuit structure simple, can realize the advantages such as soft switch, switching frequency be constant, thereby be used widely.But along with the raising of power output, the current stress of switching tube also increases thereupon.For reducing the current stress of switching tube, can adopt a plurality of devices or module in parallel, but also have the problems such as thermal design is difficult, control circuit is complicated simultaneously.For addressing this problem, there is scholar to propose three-phase tri-level DC converter topology, effectively reduce the electric current and voltage stress of switching tube, be applicable to high-power applications occasion, but converter is difficult to optimal design under wide input voltage occasion, Simultaneous Switching pipe and number of diodes are many, and transformer configuration is comparatively complicated.
Summary of the invention
Technical problem to be solved by this invention is: a kind of bi-frequency control Combined three phase three-level DC converter is provided, has solved the problem of transformer configuration complexity.
The present invention, for solving the problems of the technologies described above, adopts following technical scheme:
A kind of bi-frequency control Combined three phase three-level DC converter, comprise three level clamping unit, three phase full bridge unit, described three level clamping unit comprise the first dividing potential drop electric capacity, the second dividing potential drop electric capacity, striding capacitance, the 7th switching tube, the 8th switching tube, the first fly-wheel diode, the second fly-wheel diode, and described the first dividing potential drop electric capacity, the second dividing potential drop electric capacity, striding capacitance comprise respectively first end, the second end; Wherein, the input of described the 7th switching tube is connected with the first end of the first dividing potential drop electric capacity, the output of the 7th switching tube respectively with the negative electrode of the first fly-wheel diode, the first end of striding capacitance is connected to form node M; The anode of described the first fly-wheel diode is connected with the second end of the first dividing potential drop electric capacity, the negative electrode of the first end of the second dividing potential drop electric capacity, the second fly-wheel diode respectively; The second end of described striding capacitance respectively with the anode of the second fly-wheel diode, the input of the 8th switching tube is connected to form node N; The second end of described the second dividing potential drop electric capacity is connected with the output of the 8th switching tube; Described three phase full bridge unit comprises three-phase brachium pontis, three-phase isolation transformer, current rectifying and wave filtering circuit, described three-phase brachium pontis comprises A phase brachium pontis, B phase brachium pontis, C phase brachium pontis, described A phase brachium pontis comprises the first switching tube, the 4th switching tube, B phase brachium pontis comprises the 3rd switching tube, the 6th switching tube, and C phase brachium pontis comprises second switch pipe, the 5th switching tube.
In order further to solve the narrow problem of existing converter input voltage range, the present invention also provides a kind of control method of bi-frequency control Combined three phase three-level DC converter, adopts following technical scheme:
A control method for bi-frequency control Combined three phase three-level DC converter, comprises and falls voltage and two kinds of mode of operations of full voltage,
(1) converter is operated in and falls voltage mode, control described the 7th switching tube, the 8th switching tube mutual symmetry conducting, control three phase full bridge cell operation in symmetrical control mode or asymmetric control mode, wherein symmetrical control mode is: control the first to the 6th switching tube conducting successively, each switching tube ON time all equates, ON time 1/6 switch periods of being separated by, the change in duty cycle scope of each switching tube conducting is 1/6～1/3; Asymmetric control mode is: the first switching tube, the 3rd switching tube, the 5th switching tube conducting successively, ON time 1/3 switch periods of being separated by, the complementary conducting of the first switching tube and the 4th switching tube, the 3rd switching tube and the complementary conducting of the 6th switching tube, the 5th switching tube and the complementary conducting of second switch pipe, on same brachium pontis, two switching tubes drive free interval between signal;
(2) converter is operated in full voltage pattern, control described the 7th switching tube, the conducting simultaneously of the 8th switching tube, control three phase full bridge cell operation in symmetrical control mode or asymmetric control mode, wherein symmetrical control mode is: control the first to the 6th switching tube conducting successively, each switching tube ON time all equates, ON time 1/6 switch periods of being separated by, the change in duty cycle scope of each switching tube conducting is 1/6～1/3; Asymmetric control mode is: the first switching tube, the 3rd switching tube, the 5th switching tube conducting successively, ON time 1/3 switch periods of being separated by, the complementary conducting of the first switching tube and the 4th switching tube, the 3rd switching tube and the complementary conducting of the 6th switching tube, the 5th switching tube and the complementary conducting of second switch pipe, on same brachium pontis, two switching tubes drive free interval between signal.
Described the 7th switching tube, the 8th switch pipe are operated in low frequency state, and the first to the 6th switching tube is operated in high frequency state
Compared with prior art, the present invention has following beneficial effect:
(1) bi-frequency control Combined three phase three-level DC converter of the present invention, compares with existing three-phase tri-level converter, and the quantity of switching tube and diode is few, and circuit structure is simple.
(2) adopt three-phase structure, can effectively reduce switching tube electric current quota, be applicable to large-power occasions; Output ripple current frequency is three times (or 1.5 times) of traditional single phase converter, can effectively reduce output filter.
(3) control method of the present invention has two kinds of mode of operations, falls voltage mode and full voltage pattern, and under different input voltages, control change device is operated in different mode, can reduce the equivalent excursion of input voltage, optimizes transducer performance.
(4) this converter is operated in half of falling the voltage stress of all switching tubes under voltage mode and being input voltage, is applicable to high input voltage occasion.
(5) adopt bi-frequency control to make three level clamping unit switch pipes be operated in low frequency state, make three phase full bridge unit switch pipe be operated in high frequency state, converter switches loss is little, and converter has high efficiency.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention.
Fig. 2 is control sequential chart of the present invention.
Fig. 3 (a) falls voltage mode positive half period equivalence operation mode figure for the present invention.
Fig. 3 (b) falls voltage mode negative half-cycle equivalence operation mode figure for the present invention.
Fig. 3 (c) is full voltage pattern equivalence operation mode figure.
Fig. 4 (a) is switch tube voltage stress V of the present invention
sRwith switching point voltage curve figure.
Fig. 4 (b) is secondary rectifying tube voltage stress V of the present invention
dRwith switching point voltage curve figure.
Fig. 4 (c) is filter inductance L of the present invention
fwith switching point voltage curve figure.
Fig. 5 (a) is switch tube voltage stress V of the present invention
sRwith input voltage graph of relation.
Fig. 5 (b) is secondary rectifying tube voltage stress V of the present invention
dRwith input voltage graph of relation.
Fig. 5 (c) is filter inductance L of the present invention
fwith input voltage graph of relation.
Experimental waveform when Fig. 6 (a) is 200V for input voltage of the present invention.
Experimental waveform when Fig. 6 (b) is 300V for input voltage of the present invention.
Experimental waveform when Fig. 6 (c) is 600V for input voltage of the present invention.
Wherein, the V in accompanying drawing
in-boundfor switching point voltage, V
infor input voltage, t is the time.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is elaborated:
As shown in Figure 1, bi-frequency control Combined three phase three-level DC converter, comprises three level clamping unit 1, three phase full bridge unit 2; Wherein three level clamping unit comprise dividing potential drop capacitor C
d1with dividing potential drop capacitor C
d2, switching tube Q
awith switching tube Q
b, sustained diode
f1and sustained diode
f2and striding capacitance C
ss, described dividing potential drop capacitor C
d1, dividing potential drop capacitor C
d2, striding capacitance C
sscomprise respectively first end, the second end; Wherein, described switching tube Q
ainput and dividing potential drop capacitor C
d1first end connect, switching tube Q
aoutput respectively with sustained diode
f1negative electrode, striding capacitance C
ssfirst end be connected to form node M; Described sustained diode
f1anode respectively with dividing potential drop capacitor C
d1the second end, dividing potential drop capacitor C
d2first end, sustained diode
f2negative electrode connect; Described striding capacitance C
ssthe second end respectively with sustained diode
f2anode, switching tube Q
binput be connected to form node N; Described dividing potential drop capacitor C
d2the second end and switching tube Q
boutput connect; Described three phase full bridge unit comprises three-phase brachium pontis, three-phase isolation transformer, current rectifying and wave filtering circuit, and described three-phase brachium pontis comprises A phase brachium pontis, B phase brachium pontis, C phase brachium pontis, and described A phase brachium pontis comprises switching tube Q
1, switching tube Q
4, B phase brachium pontis comprises switching tube Q
3, switching tube Q
6, C phase brachium pontis comprises switching tube Q
2, switching tube Q
5.
Dividing potential drop capacitor C
d1with dividing potential drop capacitor C
d2capacity is very large and equal, and its voltage is input voltage V
inhalf, i.e. V
cd1=V
cd2=V
in/ 2, can regard voltage as is V
in/ 2 voltage source.
The former limit winding of three-phase transformer adopts triangle connected mode, and secondary winding adopts Y-connection mode, and in addition, transformer also can adopt triangle/triangle, star/delta, star/Y-connection mode.Secondary adopts three-phase bridge rectifier circuit, D
r1～D
r6secondary rectifier diode, L
foutput inductor, C
foutput filter capacitor, R
ldit is load.
The control sequential chart of the concrete control method of the present invention as shown in Figure 2, comprises and falls voltage and two kinds of mode of operations of full voltage,
(1), when input voltage is higher, make Q
a, Q
bmutual symmetry conducting, now three phase full bridge unit input voltage v
mN=V
in/ 2, half that all switch tube voltage stress is input voltage, is defined as converter and is operated in and falls voltage mode, equivalent circuit diagram as shown in Fig. 3 (a) and Fig. 3 (b), switching tube Q in Fig. 3 (a)
aconducting, the electric current switching tube Q that flows through
a, three phase full bridge unit and sustained diode
f2, dividing potential drop capacitor C now
d1energy is provided; Switching tube Q in Fig. 3 (b)
bconducting, the electric current switching tube Q that flows through
b, three phase full bridge unit and sustained diode
f1, dividing potential drop capacitor C now
d2energy is provided.Due to switching tube Q
a, switching tube Q
boN time is identical, and therefore two dividing potential drop electric capacity are all pressed.
(2), when input voltage is lower, make Q
a, Q
bconducting always, now v
mN=V
in, switching tube Q
1～Q
6voltage stress be input voltage, definition converter is operated in full voltage pattern, its equivalent circuit diagram as shown in Figure 3 (c), electric current flow through input power, Q
a, three phase full bridge unit and Q
b, its operation principle is identical with three phase full bridge converter.
This converter is operated in and falls under voltage or full voltage pattern, and three phase full bridge unit all can adopt symmetrical control or asymmetric control, and wherein symmetrical control mode is: each switching tube ON time all equates, and the adjacent switching tube Q of sequence number
1～Q
6conducting successively, ON time 1/6 switch periods of being separated by, the change in duty cycle scope of switching tube is 1/6～1/3, under this control mode, the switching tube of three phase full bridge unit is hard switching.
Asymmetric control mode is: switching tube Q in A, B, C three-phase brachium pontis
1, Q
3, Q
5duty ratio is identical and each 1/3rd cycles of interval are open-minded, the complementary conducting of two switching tubes of every phase brachium pontis, and on same brachium pontis, two switching tubes drive free interval between signal; Can realize the zero voltage switch of this unit switch pipe thus.
For improving transducer effciency, the preferred asymmetric control mode in three phase full bridge unit, due to switching tube Q
awith Q
beffect be only to realize input equalizing capacitance electric voltage equalization, other cache oblivious of its switching frequency and converter, in order to reduce its switching loss, can allow it be operated in low frequency state, switching tube in three phase full bridge unit is operated in high frequency state, so this converter essence employing is bi-frequency control mode.
Switching point voltage V between two kinds of mode of operations
in, bounddetermined three phase full bridge unit input voltage v
mNscope, directly affected the size of switching tube, secondary rectifying tube voltage stress and filter inductance, so switching point voltage is the key of this converter design.The design parameter of take is below introduced the selection of switching point voltage as example.Transducer parameters index is as follows, input voltage V
in: 200V～600V, output voltage: V
o=48V, full-load current: I
o=20A, inductive current pulsation: Δ i
lf_max=4A, three phase full bridge unit switch frequency f
s=50kHz, maximum duty cycle is lost D
loss_max=0.15.If the switching point voltage of two kinds of mode of operations is V
in, bound, as 200V≤V
in≤ V
in, boundtime, converter is operated in full voltage pattern; Work as V
in, bound≤ V
induring≤600V, converter is operated in and falls voltage mode.According to final gained three phase full bridge unit input voltage v
mNthe difference of excursion, by switching point voltage V
in, boundbe divided into following three regions:
I) if 200V≤V
in, bound≤ 300V, three phase full bridge unit input voltage v
mNexcursion is V
in, bound/ 2≤V
in≤ 300V;
Ii) if 300V≤V
in, bound≤ 400V, three phase full bridge unit input voltage v
mNexcursion is V
in, bound/ 2≤V
in≤ V
in, bound;
Iii) if 400V≤V
in, bound≤ 600V, three phase full bridge unit input voltage v
mNexcursion is 200V≤V
in≤ V
in, bound.
By three phase full bridge unit input voltage v
mNminimum value is determined transformer turn ratio K
tr, three phase full bridge unit input voltage v
mNmaximum is determined required filter inductance L
f, can try to achieve switch tube voltage stress V
sR, rectifying tube voltage stress V
dRand filter inductance L
fabout V
in, boundexpression formula, the corresponding curve obtaining is as shown in Fig. 4 (a), Fig. 4 (b), Fig. 4 (c), when getting switching point voltage V
in, boundduring=300V, switching tube and rectifying tube voltage stress are minimum, and required filter inductance is also minimum.
In order to further illustrate the advantage of converter of the present invention when the wide input voltage range, itself and half-bridge three-level converter and three phase full bridge converter are contrasted, as shown in Fig. 5 (a), Fig. 5 (b), Fig. 5 (c), by switching point voltage design, when the 300V, Combined three phase three-level converter of the present invention is all optimum at aspects such as switch tube voltage stress, rectifying tube voltage stress, filter inductances.
When actual parameter designs, should first according to input voltage range, comprehensively compare the impact of switching point voltage on converter parameters, and then select a rational switching point magnitude of voltage.
Example of the present invention is as follows: input direct voltage: V
in=200～600V; Output dc voltage: V
o=48V; Output current: I
o=20A; The former secondary no-load voltage ratio of three-phase transformer: K
tr=5; Output inductor: L
f=45uF; Switching tube (Q
1-Q
6) model is: IPW65R080CFD; Fly-wheel diode (D
f1, D
f2) model is: DSEI30-06A; Secondary rectifier diode (D
r1-D
r6) model is: STPS60SM200C; Q
a, Q
bswitching frequency: f
s1=12.5kHz; Three phase full bridge unit switch frequency: f
s2=50kHz.
Fig. 6 (a), Fig. 6 (b), Fig. 6 (c) have provided respectively voltage v between 200V, 300V and 600V input, full load brachium pontis mid point
aB, secondary commutating voltage v
rectand filter inductance current i
lfwaveform, voltage v between Fig. 6 (a) bridge arm mid point
aBhigh level amplitude is input voltage, illustrates that converter is operated in full voltage pattern when 200V inputs; Voltage v between Fig. 6 (b), Fig. 6 (c) brachium pontis mid point
aBhigh level amplitude is half of input voltage, illustrates that converter is operated in when 300V, 600V input to fall voltage mode, and wherein filter inductance current pulsation is minimum during 300V input, tests consistent with theory analysis.
As seen from the above description, the bi-frequency control Combined three phase three-level DC converter tool that the present invention proposes has the following advantages:
1. compare with existing three-phase tri-level DC converter, switching tube quantity reduces, and circuit structure is simple;
2. during high pressure switch tube voltage stress be input voltage half, be suitable for high input voltage occasion;
3. adopt three-phase structure, can effectively reduce switching tube current stress, be suitable for large-power occasions;
4. adopt bi-frequency control to make three level clamping unit switch pipes be operated in low frequency state, switching loss is little;
Have two kinds of mode of operations, when wide region is inputted, select suitable switching point voltage, converter can obtain optimal performance.
Claims (3)
1. a bi-frequency control Combined three phase three-level DC converter, it is characterized in that: comprise three level clamping unit, three phase full bridge unit, described three level clamping unit comprise the first dividing potential drop electric capacity, the second dividing potential drop electric capacity, striding capacitance, the 7th switching tube, the 8th switching tube, the first fly-wheel diode, the second fly-wheel diode, and described the first dividing potential drop electric capacity, the second dividing potential drop electric capacity, striding capacitance comprise respectively first end, the second end; Wherein, the input of described the 7th switching tube is connected with the first end of the first dividing potential drop electric capacity, the output of the 7th switching tube respectively with the negative electrode of the first fly-wheel diode, the first end of striding capacitance is connected to form node M; The anode of described the first fly-wheel diode is connected with the second end of the first dividing potential drop electric capacity, the negative electrode of the first end of the second dividing potential drop electric capacity, the second fly-wheel diode respectively; The second end of described striding capacitance respectively with the anode of the second fly-wheel diode, the input of the 8th switching tube is connected to form node N; The second end of described the second dividing potential drop electric capacity is connected with the output of the 8th switching tube; Described three phase full bridge unit comprises three-phase brachium pontis, three-phase isolation transformer, current rectifying and wave filtering circuit, described three-phase brachium pontis comprises A phase brachium pontis, B phase brachium pontis, C phase brachium pontis, described A phase brachium pontis comprises the first switching tube, the 4th switching tube, B phase brachium pontis comprises the 3rd switching tube, the 6th switching tube, and C phase brachium pontis comprises second switch pipe, the 5th switching tube.
2. the control method based on bi-frequency control Combined three phase three-level DC converter described in claim 1, is characterized in that: comprises and falls voltage and two kinds of mode of operations of full voltage,
(1) converter is operated in and falls voltage mode, control described the 7th switching tube, the 8th switching tube mutual symmetry conducting, control three phase full bridge cell operation in symmetrical control mode or asymmetric control mode, wherein symmetrical control mode is: control the first to the 6th switching tube conducting successively, each switching tube ON time all equates, ON time 1/6 switch periods of being separated by, the change in duty cycle scope of each switching tube conducting is 1/6 ~ 1/3; Asymmetric control mode is: the first switching tube, the 3rd switching tube, the 5th switching tube conducting successively, ON time 1/3 switch periods of being separated by, the complementary conducting of the first switching tube and the 4th switching tube, the 3rd switching tube and the complementary conducting of the 6th switching tube, the 5th switching tube and the complementary conducting of second switch pipe, on same brachium pontis, two switching tubes drive free interval between signal;
(2) converter is operated in full voltage pattern, control described the 7th switching tube, the conducting simultaneously of the 8th switching tube, control three phase full bridge cell operation in symmetrical control mode or asymmetric control mode, wherein symmetrical control mode is: control the first to the 6th switching tube conducting successively, each switching tube ON time all equates, ON time 1/6 switch periods of being separated by, the change in duty cycle scope of each switching tube conducting is 1/6 ~ 1/3; Asymmetric control mode is: the first switching tube, the 3rd switching tube, the 5th switching tube conducting successively, ON time 1/3 switch periods of being separated by, the complementary conducting of the first switching tube and the 4th switching tube, the 3rd switching tube and the complementary conducting of the 6th switching tube, the 5th switching tube and the complementary conducting of second switch pipe, on same brachium pontis, two switching tubes drive free interval between signal.
3. the control method of bi-frequency control Combined three phase three-level DC converter according to claim 2, is characterized in that: described the 7th switching tube, the 8th switch pipe are operated in low frequency state, and the first to the 6th switching tube is operated in high frequency state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549320.8A CN103595246B (en) | 2013-11-07 | 2013-11-07 | A kind of bi-frequency control Combined three phase three-level DC converter and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549320.8A CN103595246B (en) | 2013-11-07 | 2013-11-07 | A kind of bi-frequency control Combined three phase three-level DC converter and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103595246A true CN103595246A (en) | 2014-02-19 |
| CN103595246B CN103595246B (en) | 2016-07-20 |
Family
ID=50085266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310549320.8A Expired - Fee Related CN103595246B (en) | 2013-11-07 | 2013-11-07 | A kind of bi-frequency control Combined three phase three-level DC converter and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103595246B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953686A (en) * | 2014-03-24 | 2015-09-30 | 国家电网公司 | Control method for charge-discharge virtual synchronization motor for electromobile energy storage |
| CN109617431A (en) * | 2019-01-27 | 2019-04-12 | 广州金升阳科技有限公司 | A kind of AC/DC power-supply system and its control method |
| CN113991989A (en) * | 2021-12-27 | 2022-01-28 | 深圳市永联科技股份有限公司 | Current ripple adjusting unit and related product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025280A (en) * | 2010-12-22 | 2011-04-20 | 南京航空航天大学 | Symmetry control type three-phase three-level direct current converter and symmetry control method thereof |
| US20120155124A1 (en) * | 2010-12-20 | 2012-06-21 | Allis Electric Co., Ltd. | Three-phase power supply with three-phase three-level dc/dc converter |
-
2013
- 2013-11-07 CN CN201310549320.8A patent/CN103595246B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120155124A1 (en) * | 2010-12-20 | 2012-06-21 | Allis Electric Co., Ltd. | Three-phase power supply with three-phase three-level dc/dc converter |
| CN102025280A (en) * | 2010-12-22 | 2011-04-20 | 南京航空航天大学 | Symmetry control type three-phase three-level direct current converter and symmetry control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘福鑫等: "新型对称控制方式三相三电平直流变换器", 《中国电机工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953686A (en) * | 2014-03-24 | 2015-09-30 | 国家电网公司 | Control method for charge-discharge virtual synchronization motor for electromobile energy storage |
| CN109617431A (en) * | 2019-01-27 | 2019-04-12 | 广州金升阳科技有限公司 | A kind of AC/DC power-supply system and its control method |
| CN113991989A (en) * | 2021-12-27 | 2022-01-28 | 深圳市永联科技股份有限公司 | Current ripple adjusting unit and related product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103595246B (en) | 2016-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101917133B (en) | Five-electrical level inverter | |
| CN102611310B (en) | Magnetic integrated self-driving current-double rectification half-bridge three-level direct-current converter | |
| CN101345473A (en) | Input-series-output-parallel automatic voltage equalizing DC transformer based on full-bridge topological structure | |
| CN102361403A (en) | Staggered series direct current (DC)/DC converter circuit | |
| CN100379137C (en) | Zero valtage switch compound crisscross parallel two-tube positive shock three-level DC inverter | |
| CN100353652C (en) | Combined type full-bridge three-level DC converter and full-bridge three-level DC converter | |
| CN202094804U (en) | Staggered serial DC/DC (Direct Current) converter circuit | |
| CN101478252B (en) | X-high frequency chain inverter without DC filtering stage | |
| CN101847936B (en) | Soft switching full-bridge direct-current converter with lag leg connected with auxiliary network in parallel | |
| CN104333231A (en) | LCC serial-parallel resonant power supply and method for increasing switching frequency by power supply | |
| CN100561840C (en) | Zero-voltage switch full-bridge direct current converter | |
| CN102969898B (en) | Low-voltage wide-input three-level full-bridge converter and control method thereof | |
| CN112928919A (en) | Isolated high-frequency resonant DC-DC converter with wide output voltage range and method | |
| CN105281361A (en) | Five-level double-step down grid-connected inverter | |
| CN101604916A (en) | Based on the pi-type auxiliary network Zero-voltage switch full-bridge direct current converter | |
| CN109586602A (en) | Auxiliary resonant pole T-type three-level soft switch inverter circuit and modulator approach | |
| CN103595246B (en) | A kind of bi-frequency control Combined three phase three-level DC converter and control method thereof | |
| CN203032409U (en) | Electric car actuator | |
| CN203466729U (en) | Multi-level LLC converter | |
| CN1937382A (en) | Zero-voltage switch combined full-bridge three-level direct current converter | |
| CN114793067A (en) | Three-phase LLC resonant converter with ultra-wide voltage regulation range | |
| CN101976966B (en) | Novel auxiliary inverter power supply by using zero-current soft switch technology | |
| CN101771350B (en) | Zero voltage switch full-bridge DC converter based on T-shaped auxiliary network | |
| CN104967325A (en) | Winding clamp single tube forward resonant soft-switching DC/DC converter | |
| CN104601002A (en) | Novel topological structure of sparse two-stage matrix converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20191107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |