CN103715973B - A kind of five phase voltage source inverter bridge Using dSPACE of SVPWM algorithms - Google Patents

Abstract

The invention discloses a kind of five phase voltage source inverter bridge Using dSPACE of SVPWM algorithms that simultaneously can control first-harmonic and triple-frequency harmonics output.When first-harmonic reference voltage vector drops on a certain sector of first harmonic spatial, only choose surround this sector two large space voltage vectors and two middle space voltage vectors to synthesize first-harmonic reference voltage vector; The selected big or middle space voltage vector of first harmonic spatial is but little, middle space voltage vector in triple-frequency harmonics space, synthesizes triple-frequency harmonics reference voltage vector at this little, middle space voltage vector of triple-frequency harmonics space utilization.The action time of first harmonic spatial two middle space voltage vectors, two large space voltage vectors and the suitable Zero voltage vector inserted is obtained according to parallelogram rule.Indirectly make five phase permanent magnet synchronous motor stator current first-harmonics and triple harmonic current act on respectively by control overflow and epitrochanterian first-harmonic and triple-frequency harmonics permanent magnetic field, both improved motor-output, and stator current peak value can be reduced again.

Description

A kind of five phase voltage source inverter bridge Using dSPACE of SVPWM algorithms

Technical field

The present invention relates to a kind of five phase voltage source inverter bridge Using dSPACE of SVPWM control technologys.Particularly relate to a kind of five phase voltage source inverter bridge Using dSPACE of SVPWM algorithms that simultaneously can control first-harmonic and triple-frequency harmonics output.

Background technology

Five phase voltage source inverter bridge are only have more two brachium pontis than three brachium pontis of three-phase voltage source inverter bridge and have five brachium pontis.Five phase voltage source inverter bridge can be that five phase Control System of Permanent Magnet Synchronous Motors are powered by different control strategies.Because higher triple-frequency harmonics permanent magnetic field is contained in some five phase permanent magnet synchronous motor p-m rotor magnetic field, if also suitably inject appropriate triple harmonic current in the electric current that five phase permanent magnet synchronous motor five phase stator winding flow into except fundamental current, triple harmonic current triple-frequency harmonics permanent magnetic field interacts while exerting oneself of raising motor, again because the stator current waveforms after fundamental current superposes with triple harmonic current is similar to flat-topped wave and makes stator current peak value diminish, reduce the maximum current of power switch pipe in inverter bridge, be convenient to the power switch pipe selecting rated current smaller.Now, just require that five phase voltage source inverter bridge can control the space voltage vector of its output first-harmonic and triple-frequency harmonics simultaneously, the fundamental current of five phase permanent magnet synchronous motors and triple harmonic current are all effectively controlled by control strategy.At present, five phase voltage source inverter bridge output region voltage vector pulse width modulation algorithm mainly contain nearest two vector space voltage vector pulse width modulation algorithm and nearest four-vector Using dSPACE of SVPWM algorithm.

Nearest two vector space voltage vector pulse width modulation algorithm are that three-phase Using dSPACE of SVPWM algorithm is migrated to five-phase system simply, when reference voltage vector drops on a certain sector of first harmonic spatial, only choose two " large space voltage vectors " surrounding this sector and synthesize first-harmonic reference voltage vector.The method only considers the synthetic effect that will obtain first-harmonic reference voltage, and not considers the synthesis result of used space voltage vector in triple-frequency harmonics space.When two " large space voltage vectors " surrounding this sector by this algorithm gained control five phase voltage source inverter bridge action time, the voltage vector that space voltage vector synthesizes in triple-frequency harmonics space is uncontrolled, and its size and locus all cannot be determined.

Nearest four-vector Using dSPACE of SVPWM algorithm take into account five-phase system more free space voltage vector, and in conjunction with the algorithm that the feature of five-phase system draws, comparatively Near two vectors SVPWM algorithm has greatly improved, but making triple-frequency harmonics export is zero.Its control algolithm is, in first harmonic spatial, when reference voltage drops on a certain sector, chooses two large space vectors, two the middle space vectors surrounding this sector and carrys out synthesized reference voltage vector; Meanwhile, in triple-frequency harmonics space, the resultant vector that four space voltage vectors are chosen in order is zero.Like this when control five phase permanent magnet synchronous motor, motor rotor triple-frequency harmonics permanent magnetic field cannot be effectively utilized and have more power.

Summary of the invention

The present invention is the deficiency solving above-mentioned technology, provides a kind of and can control the Using dSPACE of SVPWM algorithm that five phase voltage source inverter bridge export first-harmonic and triple-frequency harmonics simultaneously.

A kind of Using dSPACE of SVPWM algorithm that simultaneously can control five phase voltage source inverter bridge output first-harmonics and triple-frequency harmonics of the present invention is, when first-harmonic reference voltage vector when dropping on a certain sector of first harmonic spatial, choose two the large space voltage vectors surrounding this sector at first harmonic spatial with and two middle space voltage vectors with synthesize first-harmonic reference voltage vector by selected for first harmonic spatial two large space voltage vectors with and two middle space voltage vectors with two little space voltage vectors are changed correspondingly in triple-frequency harmonics space with and two middle space voltage vectors with at two little space voltage vectors that triple-frequency harmonics space utilization is selected with and two middle space voltage vectors with synthesize triple-frequency harmonics reference voltage vector at first harmonic spatial, large space voltage vector with middle space voltage vector direction vector consistent, large space voltage vector with middle space voltage vector direction vector consistent, wherein, large space voltage vector advanced large space voltage vector space electrical degree be π/5, first-harmonic reference voltage vector advanced large space voltage vector space electrical degree be δ, large space voltage vector advanced first-harmonic reference voltage vector space electrical degree be ε, δ+ε=π/5; In triple-frequency harmonics ripple space, middle space voltage vector with little space voltage vector direction vector contrary, middle space voltage vector with little space voltage vector direction vector contrary, middle space voltage vector space voltage vector in advanced space electrical degree be 3 π/5, little space voltage vector advanced little space voltage vector space electrical degree be 3 π/5, triple-frequency harmonics reference voltage vector advanced little space voltage vector space electrical degree be λ, little space voltage vector advanced triple-frequency harmonics reference voltage vector space electrical degree be π/5, μ, λ+μ=3.

Be U in five phase voltage source inverter bridge DC bus-bar voltage _dc, the switch control rule cycle is T _swhen, when first-harmonic reference voltage vector when dropping on a certain sector, in order to generate first-harmonic reference voltage vector with triple-frequency harmonics reference voltage vector surround this sector: middle space voltage vector with middle space voltage vector the time of effect is respectively t ₁and t ₂, large space voltage vector with large space voltage vector the time of effect is respectively t ₃and t ₄, insert Zero voltage vector U ₀with Zero voltage vector U ₃₁coefficient time t ₀, respectively according to following various calculating:

$t_1=\frac{T_s}{U_{dc}}\left(1.1756\right|U_{ref}^1|sin\mathrm{\ϵ}-1.9022|U_{ref}^3\left|sin\mathrm{\μ}\right)$

$t_2=\frac{T_s}{U_{dc}}\left(1.1756\right|U_{ref}^1|sin\mathrm{\δ}-1.9022|U_{ref}^3\left|sin\mathrm{\λ}\right)$

$t_3=\frac{T_s}{U_{dc}}\left(1.9022\right|U_{ref}^1|sin\mathrm{\ϵ}+1.1756|U_{ref}^3\left|sin\mathrm{\μ}\right)$

$t_4=\frac{T_s}{U_{dc}}\left(1.9022\right|U_{ref}^1|sin\mathrm{\δ}+1.1756|U_{ref}^3\left|sin\mathrm{\λ}\right)$

t ₀＝T _s-t ₁-t ₂-t ₃-t ₄

The time that five phase voltage source inverter bridge calculate gained as stated above applies space voltage vector, control while realizing first-harmonic that five phase voltage source inverter bridge export and triple-frequency harmonics space voltage vector, five phase permanent magnet synchronous motor stator current first-harmonics and triple harmonic current are controlled indirectly, five phase permanent magnet synchronous motor stator current first-harmonics and triple harmonic current are acted on respectively by control overflow and epitrochanterian first-harmonic and triple-frequency harmonics permanent magnetic field, thus raising motor-output, reduce stator current peak value.

Accompanying drawing explanation

Fig. 1 is the five phase permanent magnet synchronous motor principle schematic that five phase voltage source inverter bridge involved in the present invention drive;

Fig. 2 is the five phase permanent magnet synchronous motors involved in the present invention winding axis spatial distribution maps at first harmonic spatial;

Fig. 3 is the winding axis spatial distribution map of five phase permanent magnet synchronous motors in triple-frequency harmonics space involved in the present invention;

Fig. 4 is the distribution maps of five phase voltage source inverter bridge involved in the present invention, 32 space voltage vectors that can export at first harmonic spatial;

Fig. 5 is the distribution map of 32 space voltage vectors in triple-frequency harmonics space that five phase voltage source inverter bridge involved in the present invention can export;

Fig. 6 is the schematic diagram at first harmonic spatial interior two middle space voltage vectors of sector (I sector) and two large space voltage vector synthesis first-harmonic reference voltage vectors involved in the present invention;

Fig. 7 is the schematic diagram that two middle space voltage vectors (being still middle space voltage vector in triple-frequency harmonics space) in triple-frequency harmonics space utilization first harmonic spatial sector (I sector) involved in the present invention and two large space voltage vectors (being but little space voltage vector in triple-frequency harmonics space) synthesize triple-frequency harmonics reference voltage vector;

Fig. 8 is the sequential chart of the minimum first-harmonic reference voltage vector of guaranteed output switching tube switching loss span voltage vector width-modulation pulse when I sector involved in the present invention.

Embodiment

Below in conjunction with embodiment and accompanying drawing, the Using dSPACE of SVPWM algorithm that simultaneously can control five phase voltage source inverter bridge output first-harmonics and triple-frequency harmonics of the present invention is described in detail.

Five phase permanent magnet synchronous motor p-m rotor magnetic field, in generals contain higher triple-frequency harmonics magnetic field, if also suitably inject appropriate triple harmonic current in the electric current that five phase permanent magnet synchronous motor five phase stator winding flow into except main fundamental current, the power density of motor can be improved.

Five phase voltage source inverter bridge can be that five phase Control System of Permanent Magnet Synchronous Motors are powered by different control strategies.Five phase voltage source inverter bridge are only have more two brachium pontis than three brachium pontis of three-phase voltage source inverter bridge and have five brachium pontis, and each brachium pontis has the power switch pipe of reverse fly-wheel diode to form by upper and lower two endophytes.The five phase permanent magnet synchronous motor principle schematic that five phase voltage source inverter bridge drive as shown in Figure 1, five phase permanent magnet synchronous motors first harmonic spatial winding axis spatial distribution map as shown in Figure 2, the winding axis spatial distribution map of five phase permanent magnet synchronous motors in triple-frequency harmonics space is as shown in Figure 3.In five phase voltage source inverter bridge, each power switch pipe is equivalent to a switch, its base stage is by Using dSPACE of SVPWM pulse-width modulation that algorithm generates (PWM) signal controlling, make 10 power switch pipes in not conducting or shutoff in the same time, make the space vector voltage that five phase voltage source inverter bridge are output-controlled.

If the switch function of definition five phase voltage source inverter bridge is

S=[S _a, S _b, S _c, S _d, S _e] in (1) formula, S _a, S _b, S _c, S _dand S _ebe respectively a, b, c, d and e five switch element of phase.With element S _afor example, when upper brachium pontis transistor turns and lower brachium pontis transistor turn off time, definition S _abe 1, otherwise be 0.The numerical value definition mode of other elements is identical with it.

When five phase inverter bridge DC bus-bar voltage are U _dctime, a, b, c, d and e five export phase voltage u mutually _a, u _b, u _c, u _dand u _eu can be expressed as _a=S _au _dc, u _b=S _bu _dc, u _c=S _cu _dc, u _d=S _du _dc, u _e=S _eu _dcform.Switch function has 32 kinds of situations.Five phase voltage source inverter bridge can export 32 controlled space voltage vectors.

In first harmonic spatial, space voltage vector for

$\begin{array}{c}{U}_k^1=\frac{2}{5}\left(u_a+u_b{e}^{j\frac{2\mathrm{\π}}{5}}+u_c{e}^{j\frac{4\mathrm{\π}}{5}}+u_d{e}^{j\frac{6\mathrm{\π}}{5}}+u_e{e}^{j\frac{8\mathrm{\π}}{5}}\right)\\ =\frac{2}{5}{U}_{dc}\left(S_c+S_b{e}^{j\frac{2\mathrm{\π}}{5}}+S_c{e}^{j\frac{4\mathrm{\π}}{5}}+S_d{e}^{j\frac{6\mathrm{\π}}{5}}+S_e{e}^{j\frac{8\mathrm{\π}}{5}}\right)\end{array}---\left(2\right)$

In triple-frequency harmonics space, space voltage vector for

$\begin{array}{c}{U}_k^3=\frac{2}{5}{U}_{dc}\left(u_a+u_c{e}^{j\frac{2\mathrm{\π}}{5}}+u_e{e}^{j\frac{4\mathrm{\π}}{5}}+u_b{e}^{j\frac{6\mathrm{\π}}{5}}+u_d{e}^{j\frac{8\mathrm{\π}}{5}}\right)\\ =\frac{2}{5}{U}_{dc}\left(S_a+S_c{e}^{j\frac{2\mathrm{\π}}{5}}+S_e{e}^{j\frac{4\mathrm{\π}}{5}}+S_b{e}^{j\frac{6\mathrm{\π}}{5}}+S_d{e}^{j\frac{8\mathrm{\π}}{5}}\right)\end{array}---\left(3\right)$

Formula (2) and the middle k of formula (3) they are natural number, and its value is k=1,2,3 ... 31.Subscript 1 and 3 represents first harmonic spatial and triple-frequency harmonics space respectively.When not emphasizing first harmonic spatial or triple-frequency harmonics space, only can write mark, not writing mark.

According to above-mentioned definition, five phase voltage source inverter bridge can export 32 space voltage vectors, and the subscript of each space voltage vector is the decimal number that the binary switch function of formation corresponding to this space voltage vector is converted to.All have 2 Zero voltage vector U at first harmonic spatial and triple-frequency harmonics space ₀and U ₃₁, 30 nonzero voltage space vectors; In these 30 nonzero voltage space vectors, varying in size according to mould, can be divided into again three kinds: 10 little space voltage vector U _s, 10 middle space voltage vector U _mwith 10 large space voltage vector U _l.Little space voltage vector U _s, middle space voltage vector U _mwith large space voltage vector U _lmould be respectively

$U_S=\frac{4}{5}cos\frac{2\mathrm{\π}}{5}{U}_{dc}=0.2472U_{dc}---\left(4\right)$

$U_M=\frac{2}{5}{U}_{dc}=0.4U_{dc}---\left(5\right)$

$U_L=\frac{4}{5}cos\frac{\mathrm{\π}}{5}{U}_{dc}=0.6472U_{dc}---\left(6\right)$

The ratio of the modulus value of three is 1:1.618:1.618 ².

32 space voltage vectors that five phase voltage source inverter bridge can export first harmonic spatial distribution map as shown in Figure 4, the distribution map of 32 space voltage vectors that five phase voltage source inverter bridge can export in triple-frequency harmonics space is as shown in Figure 5.As seen from the figure, there is such relation in the switch function corresponding to 32 switching voltage vectors: for first harmonic spatial, and the on off state corresponding to large space voltage vector is that inverter only has the conducting simultaneously of adjacent two-phase or shutoff; On off state corresponding to middle space voltage vector is that inverter only has one to be conducted or turns off; The on off state that little space voltage vector is corresponding is that inverter only has the conducting simultaneously of non-conterminous two-phase or shutoff.Because be inserted with the phase of not conducting between the phase of little space voltage vector conducting, this situation may cause voltage vector direction inconsistent, should avoid using them to participate in first-harmonic reference voltage vector during control as far as possible synthesis.Generally choose the large space voltage vector in first harmonic spatial and middle space voltage vector participation reference voltage vector synthesis.In addition, the large space voltage vector title in first harmonic spatial is consistent with the little space voltage vector title in triple-frequency harmonics space; Middle space voltage vector title in two spaces is consistent; Little space voltage vector in first harmonic spatial is consistent with the large space voltage vector in triple-frequency harmonics space.Above-mentioned three kinds of situations are that title is consistent, not identical in the position in two spaces.Zero voltage vector in two spaces is all located at zero point.For first harmonic spatial, the space that adjacent two large space voltage vectors surround if define is a sector, then space one is divided into 10 sectors, represents 10 this time adjacent sectors respectively with 10 greek numerals such as I ~ X.In same first harmonic spatial sector, adjacent two large space voltage vectors with between space angle be π/5 electrical degree, in advance space electrical degree; Adjacent two middle space voltage vectors with between space angle be also π/5 electrical degree, also advanced space electrical degree; Namely with with direction is identical.

The core of space vector pulse width modulatio algorithm proposed by the invention is exactly, when first-harmonic reference voltage vector when dropping on a certain sector of first harmonic spatial, only choose two the large space voltage vectors surrounding this sector at first harmonic spatial with and two middle space voltage vectors with synthesize first-harmonic reference voltage vector two large space voltage vectors that first harmonic spatial is selected with and two middle space voltage vectors with but two little space voltage vectors are changed correspondingly in triple-frequency harmonics space with and two middle space voltage vectors with at two little space voltage vectors that triple-frequency harmonics space utilization is selected with and two middle space voltage vectors with synthesize triple-frequency harmonics reference voltage vector due to triple-frequency harmonics georeferencing voltage vector rotary speed be reference voltage vector in fundamental voltage space three times of rotary speed, therefore space bit angle setting be three times of position angle.Can draw thus as shown in Figure 6 at arbitrary interior two the middle space voltage vectors of sector (for I sector) of first harmonic spatial with with two large space voltage vectors with synthesis first-harmonic reference voltage vector schematic diagram, and two middle space voltage vectors at triple-frequency harmonics space utilization and first harmonic spatial (for I sector) as shown in Figure 7 with corresponding middle space voltage vector with with two large space voltage vectors of first harmonic spatial (for I sector) with corresponding little space voltage vector with synthesize triple-frequency harmonics reference voltage vector schematic diagram.

For each sector of first harmonic spatial, at first harmonic spatial, with two direction vectors are consistent, with two direction vectors are consistent, in advance space electrical degree be π/5, in advance space electrical degree be δ, in advance space electrical degree be ε, and

δ+ε＝π/5(7)

In triple-frequency harmonics ripple space, middle space voltage vector with little space voltage vector direction vector contrary, middle space voltage vector with little space voltage vector direction vector contrary, middle space voltage vector space voltage vector in advanced space electrical degree be 3 π/5, little space voltage vector advanced little space voltage vector space electrical degree be 3 π/5, triple-frequency harmonics reference voltage vector advanced little space voltage vector space electrical degree be λ, middle space voltage vector advanced triple-frequency harmonics reference voltage vector space electrical degree be μ, and

λ+μ＝3π/5(8)

Surround 6 space voltage vectors of each sector of first harmonic spatial 10 sectors and as shown in table 1 with 6 space voltage vectors of these 6 space voltage vectors corresponding to triple-frequency harmonics space.

Table 1

If the switch control rule cycle is T _s, first-harmonic reference voltage vector can be set up by Fig. 4, Fig. 5 and Shi (7) with Zero voltage vector (U ₀and U ₃₁), first harmonic spatial two middle space voltage vectors with and two large space voltage vectors with t action time ₀, t ₁, t ₂, t ₃and t ₄between relational expression; Meanwhile, triple-frequency harmonics georeferencing voltage vector can also be set up with Zero voltage vector (U ₀and U ₃₁), the middle space voltage vector in two, triple-frequency harmonics space with and two little space voltage vectors with t action time ₀, t ₁, t ₂, t ₃and t ₄between relational expression.

By parallelogram law, in first harmonic spatial, following equation is set up

$\left|U_M^1\right|t_1+\left|U_L^1\right|t_3=\frac{sin\mathrm{\ϵ}}{sin(\mathrm{\π}/5)}\left|U_{ref}^1\right|T_s---\left(9\right)$

$\left|U_{M+1}^1\right|t_2+\left|U_{L+1}^1\right|t_4=\frac{sin\mathrm{\δ}}{sin(\mathrm{\π}/5)}\left|U_{ref}^1\right|T_s---\left(10\right)$

In triple-frequency harmonics space, following equation is set up

$\left|U_S^3\right|t_3-\left|U_M^3\right|t_1=\frac{sin\mathrm{\μ}}{sin(3\mathrm{\π}/5)}\left|U_{ref}^3\right|T_s---\left(11\right)$

$\left|U_{S+1}^3\right|t_4-\left|U_{M+1}^3\right|t_2=\frac{sin\mathrm{\λ}}{sin(3\mathrm{\π}/5)}\left|U_{ref}^3\right|T_s---\left(12\right)$

Can be solved by formula (4), formula (5), formula (6), formula (9), formula (10), formula (11) and formula (12)

$t_1=\frac{T_s}{U_{dc}}\left(1.1756\right|U_{ref}^1|sin\mathrm{\ϵ}-1.9022|U_{ref}^3\left|sin\mathrm{\μ}\right)---\left(13\right)$

$t_2=\frac{T_s}{U_{dc}}\left(1.1756\right|U_{ref}^1|sin\mathrm{\δ}-1.9022|U_{ref}^3\left|sin\mathrm{\λ}\right)---\left(14\right)$

$t_3=\frac{T_s}{U_{dc}}\left(1.9022\right|U_{ref}^1|sin\mathrm{\ϵ}+1.1756|U_{ref}^3\left|sin\mathrm{\μ}\right)---\left(15\right)$

$t_4=\frac{T_s}{U_{dc}}\left(1.9022\right|U_{ref}^1|sin\mathrm{\δ}+1.1756|U_{ref}^3\left|sin\mathrm{\λ}\right)---\left(16\right)$

t ₀＝T _s-t ₁-t ₂-t ₃-t ₄(17)

The DSP of five phase Control System of Permanent Magnet Synchronous Motor inside implements to obtain according to the control strategy of control system the first harmonic spatial reference voltage vector that five phase inverter bridge should export with the reference voltage vector in triple-frequency harmonics space dSP is according to first harmonic spatial reference voltage vector with the reference voltage vector in triple-frequency harmonics space t action time of selected first harmonic spatial adjacent two middle space voltage vectors, adjacent two large space voltage vectors and Zero voltage vector is calculated according to formula (13), formula (14), formula (15), formula (16) and formula (17) ₁, t ₂, t ₃, t ₄and t ₀.The corresponding power switch pipe of the interior control of each control cycle turns on and off the additional space voltage vector that inverter is exported and continues t ₁, t ₂, t ₃, t ₄and t ₀time, five phase permanent magnet synchronous motor stators just can obtain the operating voltage consistent with reference voltage vector, five phase permanent magnet synchronous motor even runnings.

For the first sector, for reducing switching loss, in each control cycle, each power switch pipe only turns on and off once, and when not refering in particular to the space voltage vector in first harmonic spatial and triple-frequency harmonics space, the sequencing of space voltage vector effect is U ₀, U ₁₆, U ₂₄, U ₂₅, U ₂₉, U ₃₁, U ₃₁, U ₂₉, U ₂₅, U ₂₄, U ₁₆, U ₀.Corresponding PWM waveform as shown in Figure 8.

When five phase Control System of Permanent Magnet Synchronous Motors control five phase voltage source inverter bridge according to the pwm pulse that the Using dSPACE of SVPWM algorithm of above-mentioned first-harmonic and triple-frequency harmonics obtains, then the space voltage vector of five phase voltage source inverter bridge output first-harmonics and triple-frequency harmonics is controlled simultaneously, five phase permanent magnet synchronous motor stator current first-harmonics and triple harmonic current are controlled indirectly, five phase permanent magnet synchronous motor stator current first-harmonics and triple harmonic current are acted on respectively by control overflow and epitrochanterian first-harmonic and triple-frequency harmonics permanent magnetic field, improve motor-output, reduce stator current peak value.

Claims (1)

1. five phase voltage source inverter bridge Using dSPACE of SVPWM algorithms, is characterized in that:

When first-harmonic reference voltage vector when dropping on a certain sector of first harmonic spatial, choose two the large space voltage vectors surrounding this sector at first harmonic spatial with and two middle space voltage vectors with synthesize first-harmonic reference voltage vector

By selected for first harmonic spatial two large space voltage vectors with and two middle space voltage vectors with two little space voltage vectors are changed correspondingly in triple-frequency harmonics space with and two middle space voltage vectors with

At two little space voltage vectors that triple-frequency harmonics space utilization is selected with and two middle space voltage vectors with synthesize triple-frequency harmonics reference voltage vector

At first harmonic spatial, large space voltage vector with middle space voltage vector direction vector consistent, large space voltage vector with middle space voltage vector direction vector consistent, wherein, large space voltage vector advanced large space voltage vector space electrical degree be π/5, first-harmonic reference voltage vector advanced large space voltage vector space electrical degree be δ, large space voltage vector advanced first-harmonic reference voltage vector space electrical degree be ε, δ+ε=π/5;

In triple-frequency harmonics ripple space, middle space voltage vector with little space voltage vector direction vector contrary, middle space voltage vector with little space voltage vector direction vector contrary, middle space voltage vector space voltage vector in advanced space electrical degree be 3 π/5, little space voltage vector advanced little space voltage vector space electrical degree be 3 π/5, triple-frequency harmonics reference voltage vector advanced little space voltage vector space electrical degree be λ, middle space voltage vector advanced triple-frequency harmonics reference voltage vector space electrical degree be π/5, μ, λ+μ=3;

Be U in five phase voltage source inverter bridge DC bus-bar voltage _dc, the switch control rule cycle is T _swhen, when first-harmonic reference voltage vector when dropping on a certain sector, in order to generate first-harmonic reference voltage vector with triple-frequency harmonics reference voltage vector surround this sector:

Middle space voltage vector with middle space voltage vector the time of effect is respectively t ₁and t ₂,

Large space voltage vector with large space voltage vector the time of effect is respectively t ₃and t ₄,

The Zero voltage vector U inserted ₀with Zero voltage vector U ₃₁coefficient time t ₀,

Respectively according to following various calculating:

$t_1=\frac{T_s}{U_{dc}}\left(1.1756\right|U_{ref}^1|sin\mathrm{\ϵ}-1.9022|U_{ref}^3\left|sin\mathrm{\μ}\right)$

$t_2=\frac{T_s}{U_{dc}}\left(1.1756\right|U_{ref}^1|sin\mathrm{\δ}-1.9022|U_{ref}^3\left|sin\mathrm{\λ}\right)$

$t_3=\frac{T_s}{U_{dc}}\left(1.9022\right|U_{ref}^1|sin\mathrm{\ϵ}+1.1756|U_{ref}^3\left|sin\mathrm{\μ}\right)$

$t_4=\frac{T_s}{U_{dc}}\left(1.9022\right|U_{ref}^1|sin\mathrm{\δ}+1.1756|U_{ref}^3\left|sin\mathrm{\λ}\right)$

t ₀＝T _s-t ₁-t ₂-t ₃-t ₄

The time that five phase voltage source inverter bridge calculate gained as stated above applies space voltage vector, control while realizing first-harmonic that five phase voltage source inverter bridge export and triple-frequency harmonics space voltage vector, five phase permanent magnet synchronous motor stator current first-harmonics and triple harmonic current are controlled indirectly, five phase permanent magnet synchronous motor stator current first-harmonics and triple harmonic current are acted on respectively by control overflow and epitrochanterian first-harmonic and triple-frequency harmonics permanent magnetic field, thus raising motor-output, reduce stator current peak value.