CN104617797A - Three-vector direct power control method for three-phase voltage-type PWM converter - Google Patents
Three-vector direct power control method for three-phase voltage-type PWM converter Download PDFInfo
- Publication number
- CN104617797A CN104617797A CN201510097432.3A CN201510097432A CN104617797A CN 104617797 A CN104617797 A CN 104617797A CN 201510097432 A CN201510097432 A CN 201510097432A CN 104617797 A CN104617797 A CN 104617797A
- Authority
- CN
- China
- Prior art keywords
- power
- reactive power
- vector
- voltage
- phase
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
Abstract
The invention discloses a three-vector direct power control method for a three-phase voltage-type PWM converter. The method comprises the following steps: analyzing the influence of a voltage vector on the input side of the converter on active power and reactive power; introducing two non-zero vectors or a zero vector in a control period to obtain an improved vector table; selecting three optimal voltage vectors which can reduce the errors between the actual values and the reference values of the active power and the reactive power at the same time from the improved vector table according to a sector in which a power grid voltage position angle is positioned, the actual values of the active power and the reactive power, and the reference values of the active power and the reactive power; calculating the acting time of each vector according to the reference value of the active power and the reference value of the reactive power. The method disclosed by the invention is simple in control algorithm and easy to implement; the fluctuation of the active power and current harmonics can be reduced obviously; the fluctuation of the reactive power can also be reduced obviously; therefore, the control quality of a system is guaranteed.
Description
Technical field
The present invention relates to a kind of three-phase voltage type pwm converter three vector direct Power Control method, belong to electric and electronic power converting means control field.
Background technology
Along with the development of power electronic technology, power semiconductor switch performance improves constantly, from early stage widely used half control type power semiconductor switch, as triode thyristor (SCR) develops into the many and full-control type power switch of different properties of nowadays type, as bipolar transistor (BJT), gate turn off thyristor (GTO), insulated gate bipolar transistor (IGBT), integral gate change transistor (IGCT), power field effect transistor (MOSFET) and field controlled thyristor (MCT) etc.The progress of power semiconductor switch technology, facilitates developing rapidly of electronic power conversion device technique, has occurred all kinds of convertor assemblys based on pulse width modulation controlled.But, these convertor assemblys need transform part greatly at present, to obtain direct voltage, translation circuit or Thyristor Controlled translation circuit is not controlled because routine variations link is widely used diode, thus electrical network is filled with and humorously in a large number involves reactive power, cause serious electrical network " pollution ".And administer this electrical network " pollution " preferably the most widely solution be voltage type PWM conversion, have that current on line side harmonic wave is little, power factor is controlled due to voltage-fed PWM converter and the advantage such as energy in bidirectional flow can realize green energy conversion effectively.
The classical control method of pwm converter mainly comprises grid voltage orientation and controls (voltage oriented control, VOC) and direct Power Control (direct power control, DPC).DPC is on the basis of instantaneous power theory, by the impact of analytic transformation device AC voltage vector on active power and reactive power, obtain a vector table, then select to reduce from vector table to gain merit according to sector, line voltage position angle place simultaneously, the optimum voltage vector of error between reactive power and reference value.Traditional DPC does not need current inner loop and adjusts, and dynamic response is quick, but according to the time of active power reference value compute vectors effect, can only have larger steady state ripple.
Summary of the invention
The object of the invention is to solve problems of the prior art and provide a kind of three-phase voltage type pwm converter three vector direct Power Control method, the method controls, algorithm is simple, be easy to realize, not only can obviously reduce active power fluctuation and current harmonics, more obviously can reduce the fluctuation of reactive power, ensure the Control platform of system.
The present invention adopts following technical scheme for achieving the above object, three-phase voltage type pwm converter three vector direct Power Control method, is characterized in that comprising the following steps: (1), the three-phase power grid voltage detecting three-phase voltage type pwm converter system, three-phase input current and DC bus-bar voltage; (2), by the three-phase power grid voltage detected and three-phase input current obtain line voltage under two-phase rest frame and input current sampled value through 3/2 conversion module, and calculate the actual value of active power and reactive power; (3), by three-phase power grid voltage signal obtain line voltage position angle through software phase-lock loop (PLL), and be divided into 0 °-60 °, 60 °-120 °, 120 °-180 °, 180 °-240 °, 240 °-300 ° and 300 ° of-360 ° of six sectors; (4), the DC bus-bar voltage actual value that DC bus-bar voltage reference value and step (1) obtain is done difference, current reference value is obtained through PI controller, the DC bus-bar voltage actual value that current reference value and step (1) obtain is multiplied and obtains active power reference value, and sets reactive power reference qref as 0; (5) line voltage under the two-phase rest frame, obtained by step (2), the voltage vector that active power is different with 8 kinds from the actual value of reactive power are meritorious under calculating the effect of relevant voltage vector, the rate of change of reactive power, illustrate that when rate of change is greater than zero this voltage vector can make power increase, illustrate that when rate of change is less than zero this voltage vector can make power reduce; (6), draw respectively in 8 kinds of different voltage vectors according to meritorious, reactive power rate of change in different sector and active power can be made to increase and reactive power increases, active power increases and reactive power reduces, active power reduces and reactive power increases, active power reduces and two non-zero that reactive power reduces simultaneously, consider adding of zero vector again, namely each sector can obtain the vectorial combination that 4 groups include two non-zero and a zero vector, then line voltage is in 0 ° of-360 ° of interval, can draw 24 groups of vectorial combinations; (7), according to step (6) gained merit, reactive power by variation tendency during different voltage vector effect, can be set up corresponding improvement vector table in different sector; (8) reference value that is meritorious, reactive power that the actual value of meritorious, the reactive power, step (2) obtained and step (4) obtain compares and draws variation tendency that is meritorious, reactive power actual value; (9) corresponding voltage vector group is selected in the improvement vector table, obtained from step (7) according to sector, line voltage position angle place and variation tendency that is meritorious, reactive power actual value, and according to each vector of this set of vectors, the rate of change of meritorious, reactive power and meritorious, the reference value of reactive power and the difference of actual value are calculated, draw the time of respective vectors effect; (10) time of the control vector effect, step (9) obtained is converted to the switching signal controlling power device.
Three-phase voltage type pwm converter three vector direct Power Control method of the present invention can calculate the action time of each vector simultaneously according to active power reference value, reactive power reference qref, not only algorithm is simple, and substantially reduces steady state ripple that is meritorious, reactive power.
Accompanying drawing explanation
Fig. 1 is three-phase voltage type pwm converter main circuit structure; Fig. 2 is active power when be 1000W reactive power being 0Var, and converter input side voltage vector is to the rate of change of active power, reactive power; Fig. 3 be three vectors (as
v 3,
v 4,
v 0) time switching mode generation method figure; Fig. 4 is pwm converter three vector direct Power Control block diagram; Fig. 5 is the AC a phase current waveform figure and the spectrogram that adopt traditional direct Power Control vector table; Fig. 6 adopts the AC a phase current waveform figure and spectrogram that improve vector table; Fig. 7 is the active power, the reactive power experimental waveform figure that adopt traditional direct Power Control vector table; Fig. 8 adopts the active power, the reactive power experimental waveform figure that improve vector table.
specific implementation method
Below in conjunction with accompanying drawing, the present invention will be further described.
Three-phase voltage type pwm converter main circuit topological structure as shown in Figure 1.In figure,
u ga,
u gb,
u gcfor AC three-phase voltage source,
i ga,
i gb,
i gcfor AC three-phase current,
v ga,
v gb,
v gcfor converter input side three-phase voltage,
u dcfor DC side busbar voltage,
lwith
rbe respectively inlet wire inductance and equivalent resistance thereof,
cfor DC filter capacitor, DC side load is by resistance
r l equivalently represented.
The Mathematical Modeling of three-phase voltage type pwm converter is transformed in two-phase rest frame by coordinate transform, is expressed as
(1)
In formula:
u g α,
u g βbe respectively α, β axle line voltage,
i g α,
i g β,
v g α,
v g βbe respectively converter α, β axle input current and input voltage.Two-phase static α, β coordinate system downconverter input voltage can be represented (as shown in table 1) by 8 voltage vectors respectively, wherein 6 be non-zero (
v 1-
v 6), 2 be zero vector (
v 0,
v 7).
Lower 8 the voltage vector value tables of table 1 two-phase static α, β coordinate system
| Voltage vector ( S a S b S c） | v gα | v gβ |
| V 1（100） | 2 U dc /3 | 0 |
| V 2（110） | U dc /3 | U dc /3 |
| V 3（010） | - U dc /3 | U dc /3 |
| V 4（011） | -2 U dc /3 | 0 |
| V 5（001） | - U dc /3 | U dc /3 |
| V 6（101） | U dc /3 | U dc /3 |
| V 0（000）， V 7（111） | 0 | 0 |
According to instantaneous power theory, instantaneous active power can be obtained
pand instantaneous reactive power
qbe respectively
(2)
Differential is carried out to (2) formula, suppose three-phase power grid voltage balance and sinusoidal, can instantaneous active power be obtained
pand instantaneous reactive power
qdifferential be
(3)
In formula: ω is the angular frequency of line voltage.Formula (3) is that prediction is gained merit when applying different voltage vector, the change of reactive power provides foundation.
According to meritorious, the reactive power rate of change that formula (3) can draw under different voltage vector effect, as shown in Figure 2.Can find out that from Fig. 2 zero vector can cushion change that is meritorious, reactive power intuitively, effectively reduce power ripple, improve steady-state behaviour.
The traditional direct Power Control vector table of table 2
| pIncrease qIncrease | pIncrease qReduce | pReduce qIncrease | pReduce qReduce | |
| 0°-60° | V 4， V 0 | V 6， V 0 | V 2， V 0 | V 1， V 0 |
| 60°-120° | V 5， V 0 | V 1， V 0 | V 3， V 0 | V 2， V 0 |
| 120°-180° | V 6， V 0 | V 2， V 0 | V 4， V 0 | V 3， V 0 |
| 180°-240° | V 1， V 0 | V 3， V 0 | V 5， V 0 | V 4， V 0 |
| 240°-300° | V 2， V 0 | V 4， V 0 | V 6， V 0 | V 5， V 0 |
| 300°-360° | V 3， V 0 | V 5， V 0 | V 1， V 0 | V 6， V 0 |
In traditional direct Power Control vector table (as shown in table 2), introduce a non-zero and a zero vector of vector table selection in a control cycle simultaneously, but the method can only calculate the action time of each vector according to active power reference value, and then improves the steady state ripple of active power.Therefore the present invention is intended to the action time that simultaneously can calculate each vector according to active power reference value, reactive power reference qref, in a control cycle, introduce two non-zero and a zero vector simultaneously, and then can obviously improve steady state ripple that is meritorious, reactive power simultaneously.Can draw according to Fig. 2 can to make active power increase and reactive power increases and active power can be made to increase and the non-zero that reactive power reduces has two in each sector, and can make active power reduce and reactive power increase and can make active power reduce and reactive power reduce non-zero only have one, at this moment one must be looked for again to make active power increase less but make reactive power increase comparatively large and make active power increase less but make reactive power reduce larger non-zero, namely the vectorial combination that 4 groups include two non-zero and a zero vector can be obtained in each sector, then line voltage is in 0 ° of-360 ° of interval, 24 groups of vectorial combinations can be drawn.In different sector, by variation tendency when different voltage vector effect, corresponding improvement vector table (as shown in table 3) can be set up according to meritorious, reactive power.Compare according to the actual value of meritorious, reactive power and reference value the variation tendency drawing actual value, then from improvement vector table, select corresponding voltage vector group according to sector, line voltage position angle place.
The improvement vector table that table 3 the present invention adopts
| pIncrease qIncrease | pIncrease qReduce | pReduce qIncrease | pReduce qReduce | |
| 0°-60° | V 3， V 4， V 0 | V 5， V 6， V 0 | V 2， V 3， V 0 | V 1， V 6， V 0 |
| 60°-120° | V 4， V 5， V 0 | V 1， V 6， V 0 | V 3， V 4， V 0 | V 1， V 2， V 0 |
| 120°-180° | V 5， V 6， V 0 | V 1， V 2， V 0 | V 4， V 5， V 0 | V 2， V 3， V 0 |
| 180°-240° | V 1， V 6， V 0 | V 2， V 3， V 0 | V 5， V 6， V 0 | V 3， V 4， V 0 |
| 240°-300° | V 1， V 2， V 0 | V 3， V 4， V 0 | V 1， V 6， V 0 | V 4， V 5， V 0 |
| 300°-360° | V 2， V 3， V 0 | V 4， V 5， V 0 | V 1， V 2， V 0 | V 5， V 6， V 0 |
Suppose that non-zero and the zero vector of selection exist
kthe rate of change of the active power that the moment is corresponding is respectively
f p1
,
f p2
with
f p0
, the rate of change of reactive power is respectively
f q1
,
f q2
with
f q0
,
kactive power, the reactive power in moment are respectively
p k ,
q k , then can predict and obtain
kthe active power in+1 moment
p k+1
, reactive power
q k+1
be respectively
(4)
In formula:
t 1,
t 2represent the action time of two non-zero,
t screpresent and control the sampling period.
Suppose
k+ 1 moment gained merit, reactive power equals reference value respectively
p ref,
q ref, the action time of non-zero can be tried to achieve by formula (4)
t 1,
t 2with the action time of zero vector
t 0
(5)
The control of on off state should follow the minimum principle of on-off times, for reaching above-mentioned purpose, does following improvement to formula (5)
(6)
Wherein
f p1
,
f p2
,
f p0
,
f q1
,
f q2
with
f q0
calculate according to formula (3).Note, when in certain switch periods, the action time of two non-zero
t 1+
t 2>
t sctime, then within this cycle, zero vector does not act on, and the action time of two non-zero is adjusted to
(7)
Its switching mode generation method (with
v 3,
v 4,
v 0for example) as shown in Figure 3.
Fig. 4 is pwm converter three vector direct Power Control block diagram, and its control method specifically comprises the steps:
(1) three-phase power grid voltage of three-phase voltage type pwm converter system, is detected
u ga,
u gb,
u gc, three-phase input current
i ga,
i gb,
i gcand DC bus-bar voltage
u dc;
(2) three-phase power grid voltage, will detected
u ga,
u gb,
u gcand three-phase input current
i ga,
i gb,
i gcline voltage under 3/2 conversion module obtains two-phase rest frame
u g α βwith input current sampled value
i g α β, and calculate actual value that is meritorious, reactive power by formula (2)
p, q;
(3), three-phase power grid voltage signal is obtained line voltage position angle through software phase-lock loop (PLL)
θ, and be divided into 0 °-60 °, 60 °-120 °, 120 °-180 °, 180 °-240 °, 240 °-300 ° and 300 ° of-360 ° of six sectors;
(4), by DC bus-bar voltage reference value
u dc refthe DC bus-bar voltage actual value obtained with step (1)
u dcdo difference, obtain current reference value through PI controller, current reference value and DC bus-bar voltage actual value
u dcbe multiplied and obtain active power reference value
p ref, and establish reactive power reference qref
q refbe 0;
(5) line voltage under the two-phase rest frame, obtained by step (2)
u g α β, active power and reactive power actual value
p, qthe voltage vector (as shown in table 1) different with 8 kinds is meritorious under calculating the effect of relevant voltage vector according to formula (3), the rate of change (as shown in Figure 2) of reactive power, illustrates that this voltage vector can make power increase (minimizing) when rate of change is greater than (being less than) zero;
(6), draw respectively in 8 kinds of different voltage vectors according to meritorious, reactive power rate of change in different sector and active power can be made to increase and reactive power increases, active power increases and reactive power reduces, active power reduces and reactive power increases, active power reduces and two non-zero that reactive power reduces simultaneously, consider adding of zero vector again, namely each sector can obtain the vectorial combination that 4 groups include two non-zero and a zero vector, then line voltage is in 0 ° of-360 ° of interval, can draw 24 groups of vectorial combinations;
(7), according to step (6) gained merit, reactive power by variation tendency during different voltage vector effect, can be set up corresponding improvement vector table (as shown in table 3) in different sector;
(8) actual value of meritorious, the reactive power, step (2) obtained
p,
qwith the reference value of meritorious, the reactive power that step (4) obtains
p ref,
q refrelatively draw variation tendency that is meritorious, reactive power actual value;
(9) corresponding voltage vector group is selected in the improvement vector table, obtained from step (7) according to sector, line voltage position angle place and variation tendency that is meritorious, reactive power actual value, and according to each vector of this set of vectors, the rate of change of meritorious, reactive power and meritorious, the reference value of reactive power and the difference of actual value are calculated according to formula (6), draw the time of respective vectors effect
t 0,
t 1,
t 2;
(10) time of the control vector effect, step (9) obtained
t 0,
t 1,
t 2be converted to the switching signal controlling power device.
Fig. 5 is the AC a phase current waveform figure and the spectrogram that adopt traditional direct Power Control vector table, Fig. 6 adopts the AC a phase current waveform figure and spectrogram that improve vector table, contrasted can obviously be found out by Fig. 5 and Fig. 6, improvement vector table is adopted to reduce current distortion, the quality of power supply that easy acquisition is higher, and total harmonic distortion of electric current drops to 1.30% by 7.64%.
Fig. 7 is meritorious, the reactive power experimental waveform adopting traditional direct Power Control vector table.Fig. 8 adopts meritorious, the reactive power experimental waveform improving vector table.Contrasted can obviously be found out by Fig. 7 and Fig. 8, adopt and improve the fluctuation that vector table not only obviously can reduce active power, more obviously can reduce the fluctuation of reactive power.
In sum, control method of the present invention is to meritorious by analytic transformation device input side voltage vector, the impact that reactive power produces, introduce two non-zero and a zero vector in a control cycle simultaneously, obtain one and improve vector table, then according to sector, line voltage position angle place, the reference value of the actual value of active power and reactive power and active power and reactive power, from improvement vector table, select three can reduce to gain merit simultaneously, the optimum voltage vector of error between reactive power actual value and reference value, and according to active power reference value, reactive power reference qref calculates the action time of each vector.The inventive method controls, algorithm is simple, is easy to realize, and not only can obviously reduce active power fluctuation and current harmonics, more obviously can reduce the fluctuation of reactive power, thus the Control platform of the system of guarantee.
Claims (1)
1. three-phase voltage type pwm converter three vector direct Power Control method, is characterized in that comprising the following steps: (1), the three-phase power grid voltage detecting three-phase voltage type pwm converter system, three-phase input current and DC bus-bar voltage; (2), by the three-phase power grid voltage detected and three-phase input current obtain line voltage under two-phase rest frame and input current sampled value through 3/2 conversion module, and calculate the actual value of active power and reactive power; (3), by three-phase power grid voltage signal obtain line voltage position angle through software phase-lock loop, and be divided into 0 °-60 °, 60 °-120 °, 120 °-180 °, 180 °-240 °, 240 °-300 ° and 300 ° of-360 ° of six sectors; (4), the DC bus-bar voltage actual value that DC bus-bar voltage reference value and step (1) obtain is done difference, current reference value is obtained through PI controller, the DC bus-bar voltage actual value that current reference value and step (1) obtain is multiplied and obtains active power reference value, and sets reactive power reference qref as 0; (5) line voltage under the two-phase rest frame, obtained by step (2), the voltage vector that active power is different with 8 kinds from the actual value of reactive power calculate the rate of change of active power under the effect of relevant voltage vector, reactive power, illustrate that when rate of change is greater than zero this voltage vector can make power increase, illustrate that when rate of change is less than zero this voltage vector can make power reduce; (6), draw respectively in 8 kinds of different voltage vectors according to active power, reactive power rate of change in different sector and active power can be made to increase and reactive power increases, active power increases and reactive power reduces, active power reduces and reactive power increases, active power reduces and two non-zero that reactive power reduces simultaneously, consider adding of zero vector again, namely each sector can obtain the vectorial combination that 4 groups include two non-zero and a zero vector, then line voltage is in 0 ° of-360 ° of interval, can draw 24 groups of vectorial combinations; (7), according to step (6) gained merit, reactive power by variation tendency during different voltage vector effect, can be set up corresponding improvement vector table in different sector; (8) reference value that is meritorious, reactive power that the actual value of meritorious, the reactive power, step (2) obtained and step (4) obtain compares and draws variation tendency that is meritorious, reactive power actual value; (9) corresponding voltage vector group is selected in the improvement vector table, obtained from step (7) according to sector, line voltage position angle place and variation tendency that is meritorious, reactive power actual value, and according to each vector of this set of vectors, the rate of change of meritorious, reactive power and meritorious, the reference value of reactive power and the difference of actual value are calculated, draw the time of respective vectors effect; (10) time of the control vector effect, step (9) obtained is converted to the switching signal controlling power device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097432.3A CN104617797B (en) | 2015-03-05 | 2015-03-05 | The vector direct Power Control method of three-phase voltage type pwm converter three |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097432.3A CN104617797B (en) | 2015-03-05 | 2015-03-05 | The vector direct Power Control method of three-phase voltage type pwm converter three |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104617797A true CN104617797A (en) | 2015-05-13 |
| CN104617797B CN104617797B (en) | 2017-07-11 |
Family
ID=53152123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510097432.3A Active CN104617797B (en) | 2015-03-05 | 2015-03-05 | The vector direct Power Control method of three-phase voltage type pwm converter three |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104617797B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322818A (en) * | 2015-11-30 | 2016-02-10 | 华南理工大学 | Control method of three-phase PWM (pulse width modulation) rectification based on novel model prediction control |
| CN108540001A (en) * | 2018-04-12 | 2018-09-14 | 浙江大学 | A kind of three-phase voltage source type rectifier direct Power Control method based on two-phase stationary coordinate system |
| CN109256968A (en) * | 2018-09-19 | 2019-01-22 | 王延敏 | A kind of sliding formwork power counteracting direct Power Control method of three-phase voltage type pwm converter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951174A (en) * | 2010-09-11 | 2011-01-19 | 天津大学 | Constant-frequency direct power control method for PWM converter under condition of power grid voltage imbalance |
| CN103904922A (en) * | 2014-03-27 | 2014-07-02 | 东南大学 | Control method based on virtual flux linkage orientation and used for voltage-type rectifier |
| CN103929073A (en) * | 2014-04-28 | 2014-07-16 | 中南大学 | Switch combination changing direct power control method of three-level PWM rectifier |
-
2015
- 2015-03-05 CN CN201510097432.3A patent/CN104617797B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951174A (en) * | 2010-09-11 | 2011-01-19 | 天津大学 | Constant-frequency direct power control method for PWM converter under condition of power grid voltage imbalance |
| CN103904922A (en) * | 2014-03-27 | 2014-07-02 | 东南大学 | Control method based on virtual flux linkage orientation and used for voltage-type rectifier |
| CN103929073A (en) * | 2014-04-28 | 2014-07-16 | 中南大学 | Switch combination changing direct power control method of three-level PWM rectifier |
Non-Patent Citations (2)
| Title |
|---|
| 张永昌，谢伟: "脉宽调制整流器直接平均功率控制", 《电力系统自动化》 * |
| 谢伟: "基于模型预测控制的PWM整流器研究", 《中国优秀硕士学位论文全文数据库（工程科技Ⅱ辑）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322818A (en) * | 2015-11-30 | 2016-02-10 | 华南理工大学 | Control method of three-phase PWM (pulse width modulation) rectification based on novel model prediction control |
| CN108540001A (en) * | 2018-04-12 | 2018-09-14 | 浙江大学 | A kind of three-phase voltage source type rectifier direct Power Control method based on two-phase stationary coordinate system |
| CN109256968A (en) * | 2018-09-19 | 2019-01-22 | 王延敏 | A kind of sliding formwork power counteracting direct Power Control method of three-phase voltage type pwm converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104617797B (en) | 2017-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI530082B (en) | Method of current control for three-phase modular multilevel inverter with inductance change allowed | |
| Hansen et al. | Sensorless control strategies for PWM rectifier | |
| CN104300812B (en) | Direct power active disturbance rejection control method for three-phase voltage source PWM rectifier | |
| CN104124701B (en) | A kind of photovoltaic combining inverter DC component inhibition method | |
| CN109245571B (en) | Passive control system and method based on optimized parameters and injected damping | |
| CN106936134B (en) | Active damping control device and control system of three-phase voltage source type current converter | |
| KR101635315B1 (en) | Active damping controlling apparatus using proportional resonant controller | |
| CN104410311B (en) | Discontinuous PWM modulation midpoint balance method of three-level inverter | |
| CN104617797B (en) | The vector direct Power Control method of three-phase voltage type pwm converter three | |
| CN103296905A (en) | Self-adaptive control method for three-phase voltage-type power factor corrector | |
| CN106998153A (en) | The dead band precompensation method of the TNPC two way convertors of alternating current-direct current mixing micro-capacitance sensor | |
| CN103595280A (en) | Deadbeat control method of solar power generating system inverter under condition of voltage unbalance | |
| CN112636618B (en) | Modulation method for reducing VIENNA rectifier current zero crossing distortion | |
| JP4017113B2 (en) | Active filter for power distribution system | |
| CN106685209A (en) | Interlaced parallel bridge-less PFC circuit controller and control method therefor | |
| CN110011553B (en) | PWM rectifier prediction control method and device for inhibiting power fluctuation | |
| CN109962480B (en) | Control system, method and application of static var generator without phase-locked loop | |
| CN104617798A (en) | Vector number-variable direct power control method for three-phase power converter | |
| Ryckaert et al. | Damping potential of single-phase bidirectional rectifiers with resistive harmonic behaviour | |
| CN106877711A (en) | A kind of single-phase cascade PWM rectifier no phase-locked loop pressure equalizing control method | |
| CN207283429U (en) | A kind of fairing of power rectifier circuit | |
| CN107888090B (en) | Mixed three-phase rectifier with non-three-phase bridge arm symmetrical structure | |
| CN112332689A (en) | Modulation method of neutral point clamped three-level converter based on geometric transformation | |
| Wang et al. | Dynamic performance optimization for high-power density three-phase Vienna PFC rectifier | |
| CN109256968A (en) | A kind of sliding formwork power counteracting direct Power Control method of three-phase voltage type pwm converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190107 Address after: 201709 No. 158 Hetai Road, Baihe Town, Qingpu District, Shanghai Patentee after: Chi Mei electric (Shanghai) Co., Ltd. Address before: No. 46, Makino District, Makino District, Xinxiang, Henan Patentee before: Henan Normal University |