CN111245279A - 5-segment SVPWM modulation method - Google Patents

5-segment SVPWM modulation method Download PDF

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CN111245279A
CN111245279A CN202010182579.3A CN202010182579A CN111245279A CN 111245279 A CN111245279 A CN 111245279A CN 202010182579 A CN202010182579 A CN 202010182579A CN 111245279 A CN111245279 A CN 111245279A
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segment
svpwm
modulation
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CN111245279B (en
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胡剑敏
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Shenzhen Yingke Interactive Technology Co ltd
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    • 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
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without 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
    • H02M7/537—Conversion of dc power input into ac power output without 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, e.g. single switched pulse inverters
    • H02M7/539—Conversion of dc power input into ac power output without 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, e.g. single switched pulse inverters with automatic control of output wave form or frequency
    • H02M7/5395—Conversion of dc power input into ac power output without 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, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • 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
    • H02M1/0048—Circuits or arrangements for reducing losses
    • H02M1/0054—Transistor switching losses
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

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Abstract

The invention discloses a 5-segment SVPWM modulation method, which utilizes various segment segments (straight lines or arc lines) to smooth aiming at abrupt voltage vectors in a traditional 5-segment SVPWM modulation signal so as to stabilize system harmonic waves, thereby achieving the purpose of further reducing the content of modulation output harmonic waves on the premise of keeping the advantage of low switching loss of the traditional 5-segment SVPWM. The PWM control method can be widely applied to the field of PWM control of power electronic equipment such as UPS, photovoltaic inverter, energy storage converter and the like.

Description

5-segment SVPWM modulation method
Technical Field
The invention belongs to the technical field of power electronic control, and particularly relates to a 5-segment SVPWM modulation method for switch optimization control.
Background
The space vector control SVPWM is widely applied to the PWM control field of power electronic power devices in power electronic equipment such as Uninterruptible Power Supplies (UPS), energy storage converters (PCS), photovoltaic inverters (Solar Inverter), Static Var Generators (SVG), Active Power Filters (APF) and the like. Compared with SPWM control, the SVPWM control method has higher direct current bus utilization rate, and therefore, the SVPWM control method is widely applied.
In the application of the SVPWM technology, the SVPWM control is divided into 7-segment type and 5-segment type. Each PWM period of the 7-segment SVPWM starts with a zero vector, so that no level vector is suddenly changed in the PWM output period, and the output harmonic content is low; on the other hand, the 5-segment SVPWM modulation method has a small switching loss because the switching operation frequency is small.
Considering the advantages of small 7-segment harmonic content and small 5-segment switching loss, the zero-sequence mutation vector of the synthesized 5-segment SVPWM is smoothed on the basis of the 5-segment SVPWM, so that the modulation harmonic content is further reduced on the basis of meeting the 5-segment switching loss.
Disclosure of Invention
The invention discloses a 5-segment SVPWM modulation method, which is used for smoothing the spatial vector mutation points of the traditional 5-segment SVPWM modulation wave by utilizing various segment line sections of straight lines or arc lines so as to inhibit the mutation of the spatial voltage vector and achieve the purpose of reducing the harmonic content of the 5-segment SVPWM, and is used in the PWM control field of power electronic equipment such as UPS, photovoltaic inverter, energy storage converter and the like.
Further, a zero sequence signal adding modulation wave, an optimized 5-segment SVPWM zero sequence signal generation and optimized 5-segment SVPWM modulation method are designed, and the method specifically comprises the following steps:
(1) normalizing the three-phase modulation signal into va(t)、vb(t)、vc(t)∈[0，1]；
(2) Calculating to obtain the maximum value v of the normalized three-phase modulation signalmax(t), minimum value
vmin(t) and calculating vp(t)、vn(t) signal preparation, let:
vmax(t)＝max(va(t)+vb(t)+vc(t))
vmin(t)＝min(va(t)+vb(t)+vc(t))
Figure BDA0002413093280000021
(3) calculating vp(t)、vn(t) calculation of v for the minimum of the absolute valuepn(t) signal preparation, for convenience of expression here using conditional operators in C language:
vpn(t)＝|vp(t)|>|vn(t)|？vn(t):vp(t)
(4) calculation of-va(t)、-vb(t)、-vc(t) median v of the three signalsmid(t)：
vmid(t)＝max(min(-ua(t),-ub(t)),min(max(-ua(t),-ub(t)),-uc(t)))
(5) Get vpn(t)、vmid(t) calculating to obtain a zero sequence signal when the absolute value is minimum:
z0(t)＝|vpn(t)|>|vmid(t)|？vmid(t):vpn(t)
(6) finally, the zero sequence voltage z obtained by calculation is calculated0(t) adding each phase voltage to form a three-phase SVPWM modulation waveform, and realizing the 5-segment SVPWM modulation method:
Figure BDA0002413093280000031
according to the invention, on the basis of the traditional 5-segment SVPWM, various segment segments (straight lines or arc lines) are utilized to smooth the mutation points of each waveform, and the mutation of a space voltage vector is inhibited, so that the output harmonic content of the SVPWM is further reduced on the basis of ensuring the original 5-segment small switching loss, and therefore, the harmonic content of the SVPWM can be optimized. Meanwhile, in the vicinity of the zero crossing of the modulation signal, the abrupt change signal of the traditional 5-segment SVPWM becomes zero when the 5-segment SVPWM modulation signal is optimized, and the switching loss of the topology can be further reduced.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a conventional 7-segment SVPWM modulation method and its modulated zero sequence signal;
FIG. 2 is a conventional 5-segment SVPWM modulation method and its modulated zero sequence signal;
FIG. 3 is a 5-segment SVPWM modulation method and its modulated zero-sequence signal of the present invention;
FIG. 4 is a difference comparison between two 5-segment modulated waves;
FIG. 5 is a comparison of corresponding PWM waveforms of two 5-segment modulation waves;
FIG. 6 is a comparison of the effect of two 5-segment modulated waves on corresponding PWM harmonic components;
FIG. 7 is a difference comparison (small modulation ratio) of two 5-segment modulated waves;
FIG. 8 is a comparison of corresponding PWM waveforms (small modulation ratio) for two 5-segment modulated waves;
fig. 9 shows the effect comparison (small modulation ratio) of two 5-segment modulation waves corresponding to the PWM harmonic components.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
The conventional 7-segment and 5-segment SVPWM modulation common method can realize SVPWM modulation by a method of injecting zero-sequence voltage into output target voltage to form corresponding modulation voltage besides calculating action time by utilizing the relation between space voltage vectors of various topological output switch sectors. The invention realizes an optimized 5-segment SVPWM modulation method by injecting target voltage into special zero sequence voltage, and is used in the PWM control field of power electronic equipment such as UPS, photovoltaic inverter, energy storage converter and the like. The conventional 7-segment and 5-segment zero-sequence voltage injection SVPWM modulation method is used for explanation, and the three-phase voltage is represented by formula (1):
Figure BDA0002413093280000041
the traditional 7-segment and 5-segment zero-sequence injection SVPWM method is to calculate the zero-sequence voltage z by using three-phase voltage0(t) then calculating the zero sequence voltage z according to equation (2)0And (t) adding each phase voltage to form a three-phase SVPWM modulation waveform, so that the corresponding SVPWM can be realized by modulating the output PWM waveform.
Figure BDA0002413093280000051
Wherein, the traditional 7-segment zero sequence voltage z0(t) the calculation method is shown in formula (3):
Figure BDA0002413093280000052
the normalized waveform of the obtained conventional 7-segment zero-sequence signal and the three-phase modulation signal is shown in fig. 1.
Traditional 5-segment zero-sequence voltage z0(t) the calculation method is shown in formula (4):
Figure BDA0002413093280000053
in the formula:
Figure BDA0002413093280000054
the normalized waveform of the obtained conventional 5-segment zero-sequence signal and the three-phase modulation signal is shown in fig. 2.
As can be seen from the traditional 5-segment SVPWM waveform, the traditional 5-segment SVPWM waveform and the zero sequence signal waveform thereof have the problem of waveform mutation, namely the SVPWM has the mutation of space voltage vector, which results in large harmonic content of the 5-segment SVPWM waveform.
According to the invention, on the basis of the traditional 5-segment SVPWM, various segment segments (straight lines or arc lines) are utilized to smooth the mutation points of each waveform, and the mutation of a space voltage vector is inhibited, so that the output harmonic content of the SVPWM is further reduced on the basis of ensuring the original 5-segment small switching loss, and the optimized 5-segment SVPWM zero-sequence signal and the modulated waveform are shown in figure 3. Comparing fig. 2, it can be seen that each waveform mutation point of the zero sequence signal and the three-phase modulation signal in fig. 3 is effectively smoothed, so that the harmonic content of the SVPWM can be optimized. Meanwhile, in the vicinity of the zero crossing of the modulation signal, the abrupt change signal of the traditional 5-segment SVPWM becomes zero when the 5-segment SVPWM modulation signal is optimized, and the switching loss of the topology can be further reduced.
As shown in fig. 4, the invention utilizes various segment segments (straight lines or arc lines) to smooth the abrupt change points of each waveform on the basis of the traditional 5-segment SVPWM, thereby suppressing the abrupt change of the space voltage vector and achieving the purpose of reducing the harmonic content of the 5-segment SVPWM. Therefore, it is the key point of implementing the present invention to design a good performance zero sequence signal, and a design method that can satisfy the above requirements is provided as an embodiment of the present invention.
The method comprises the following specific steps:
1. setting three-phase modulation signal as v after normalizationa(t)、vb(t)、vc(t)∈[0，1]；
2. Calculating to obtain the maximum value v of the normalized three-phase modulation signalmax(t), minimum value vmin(t) and calculating vp(t)、vn(t) signal preparation, let:
vmax(t)＝max(va(t)+vb(t)+vc(t)) (6)
vmin(t)＝min(va(t)+vb(t)+vc(t)) (7)
Figure BDA0002413093280000061
3. calculating vp(t)、vn(t) calculation of v for the minimum of the absolute valuepn(t) signal preparation, for convenience of expression here using conditional operators in C language:
vpn(t)＝|vp(t)|>|vn(t)|？vn(t):vp(t) (9)
4. calculation of-va(t)、-vb(t)、-vc(t) median v of the three signalsmid(t), there are many methods for calculating the intermediate value, and the invention provides a calculation method:
vmid(t)＝max(min(-ua(t),-ub(t)),min(max(-ua(t),-ub(t)),-uc(t))) (10)
5. get vpn(t)、vmid(t) calculating to obtain a zero sequence signal when the absolute value is minimum:
z0(t)＝|vpn(t)|>|vmid(t)|？vmid(t):vpn(t) (11)
6. finally, the zero sequence voltage z obtained by calculation is calculated according to the formula (2)0(t) adding each phase voltage to form a three-phase SVPWM modulation wave waveform, and realizing the 5-segment SVPWM modulation method realized by the invention:
Figure BDA0002413093280000071
the optimized 5-segment SVPWM waveform and the traditional 5-segment SVPWM waveform pair formed by the method are shown in FIG. 5, the harmonic content pair corresponding to each waveform is shown in FIG. 6, and the calculation and comparison of the waveforms THDV show that the optimized 5-segment SVPWM waveform is smaller than that of the traditional method. Particularly under the condition of a small modulation ratio, as shown in fig. 7, the abrupt change of the vector of the conventional 5-segment SVPWM is more obvious, while the vector of the optimized 5-segment SVPWM is relatively smooth, and the PWM comparison waveforms corresponding to the two types of modulation are shown in fig. 8. Comparing the two modulation methods, the PWM wave frequency spectrums are shown in fig. 9, the method of the present invention can significantly reduce the SVPWM modulation harmonic content.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (2)

1. A5-segment SVPWM modulation method is characterized in that: and smoothing the mutation points of each space vector of the 5-segment SVPWM modulated wave by utilizing various segment line segments of straight lines or arc lines, inhibiting the mutation of the space voltage vector and reducing the harmonic content of the 5-segment SVPWM.
2. The 5-segment SVPWM modulation method of claim 1, characterized in that: designing a zero sequence signal adding modulation wave to obtain an optimized 5-segment SVPWM zero sequence signal generation and optimized 5-segment SVPWM modulation method, which comprises the following steps:
1) normalizing the three-phase modulation signal into va(t)、vb(t)、vc(t)∈[0，1]；
2) Calculating to obtain the maximum value v of the normalized three-phase modulation signalmax(t), minimum value vmin(t) and calculating vp(t)、vn(t) signal preparation, let:
vmax(t)＝max(va(t)+vb(t)+vc(t))
vmin(t)＝min(va(t)+vb(t)+vc(t))
Figure FDA0002413093270000011
3) calculating vp(t)、vn(t) calculation of v for the minimum of the absolute valuepn(t) signal preparation, which is expressed by conditional operators in C language:
vpn(t)＝|vp(t)|>|vn(t)|？vn(t):vp(t)
4) calculation of-va(t)、-vb(t)、-vc(t) median v of the three signalsmid(t)：
vmid(t)＝max(min(-ua(t),-ub(t)),min(max(-ua(t),-ub(t)),-uc(t)))
5) Get vpn(t)、vmid(t) calculating to obtain a zero sequence signal when the absolute value is minimum:
z0(t)＝|vpn(t)|>|vmid(t)|？vmid(t):vpn(t)
6) finally, the zero sequence voltage z obtained by calculation is calculated0(t) adding each phase voltage to form a three-phase SVPWM modulated wave waveform:
Figure FDA0002413093270000021
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102355137A (en) * 2011-10-01 2012-02-15 徐州中矿大传动与自动化有限公司 Equivalent space vector carrier modulation multilevel converter control method
CN103236815A (en) * 2013-05-23 2013-08-07 中颖电子股份有限公司 Method for modulating space vector impulse width of frequency converter
CN106100430A (en) * 2016-08-23 2016-11-09 合肥工业大学 The carrier wave implementation method of three-phase five-level inverter low common-mode voltage modulation
CN106533231A (en) * 2016-12-02 2017-03-22 中国船舶重工集团公司第七〇九研究所 Control method for eliminating low-frequency ripple of mid-point voltage of DC of three-level inverter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102355137A (en) * 2011-10-01 2012-02-15 徐州中矿大传动与自动化有限公司 Equivalent space vector carrier modulation multilevel converter control method
CN103236815A (en) * 2013-05-23 2013-08-07 中颖电子股份有限公司 Method for modulating space vector impulse width of frequency converter
CN106100430A (en) * 2016-08-23 2016-11-09 合肥工业大学 The carrier wave implementation method of three-phase five-level inverter low common-mode voltage modulation
CN106533231A (en) * 2016-12-02 2017-03-22 中国船舶重工集团公司第七〇九研究所 Control method for eliminating low-frequency ripple of mid-point voltage of DC of three-level inverter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XIAOLING MO, ET AL: ""Segmented Multi-mode Modulation Algorithm Based on Synchronized SVPWM for Rail Transit Traction Motor"", 《2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS)》 *

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