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Publication numberCN105515405 A
Publication typeApplication
Application numberCN 201510736038
Publication date20 Apr 2016
Filing date2 Nov 2015
Priority date2 Nov 2015
Publication number201510736038.X, CN 105515405 A, CN 105515405A, CN 201510736038, CN-A-105515405, CN105515405 A, CN105515405A, CN201510736038, CN201510736038.X
Inventors牛兰, 葛红娟, 杨光, 江帆, 陈思
Applicant南京航空航天大学
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Wide-range step-down 18-pulse self-coupling transformer rectifier
CN 105515405 A
Abstract
The invention discloses a wide-range step-down 18-pulse self-coupling transformer rectifier, and the transformer rectifier comprises a step-down 18-pulse self-coupling transformer, a main rectification bridge, and an auxiliary rectification bridge. Each phase of the step-down 18-pulse self-coupling transformer is provided with six windings, wherein the six windings comprise one extended winding, three short windings, and two secondary windings. Through the reasonable design of the turn ratio of the primary and secondary windings of each phase and the voltage vectors of the primary and secondary windings, the rectifier achieves the wide-range step-down of an input voltage, obtains three groups of three-phase AC voltages with the phase difference 37 degrees, and outputs the voltages through a rectification bridge circuit. The rectifier is small in current harmonics, is small in ripples of output voltages, solves a problem that the output voltage of a conventional 18-pulse self-coupling transformer rectifier is difficult to adjust, and can achieve the wide-range output of 28-280V DC voltages.
Claims(2)  translated from Chinese
1. 宽范围降压式18脉冲自禪变压器的绕组结构与连接方式,其特征在于:变压器每相6 个绕组,其中原边4个绕组,副边2个绕组,WA相为例,该自禪变压器的绕组结构及绕组具体连接方式为:原边4个绕组,其中一组延长绕组^3),3个短绕组(313\3/1/、1/32),副边2个短绕组(clc,cb2),原副边各绕组流过的电流不同,但绕组间有公共端,A相原边延长绕组(Aa)的首端(A)为A相电压输入端,连接输入电压源(Va),末端(a)与B相副边短绕组(ala, ac2)顺序连接形成的中间抽头a连接,共同形成电压引出端(a), A相的3组原边短绕组(曰1曰/、曰/b"、b"a2)顺序连接形成2个电压引出端曰/,b" ;3组原边短绕组(曰1曰/、曰/b"、b"a2) 顺序连接形成的首端(al)与B相副边2个短绕组(ala, ac2)顺序连接的首端(al)相连接;3组原边短绕组(曰1曰\曰、"、1/曰2)顺序连接的末端(曰2)连接(:相副边2个短绕组化化,6曰2)顺序连接形成的末端相连接(a2);A相副边2个短绕组(clc,cb2)顺序连接形成电压引出端(C); 副边短绕组klc,cb2)顺序连接形成首端(C)连接C相原边短绕组(ClC^ ,C^a",a"c2)顺序连接形成的首端(Cl);副边短绕组(clc,cb2)顺序连接形成尾端(b2)与B相原边3个短绕组化化/,b/ C",c"b2)顺序相连形成的尾端化2)相连接,B相和C相的连接方式与A相相似。 1. The winding structure with a wide range of connection buck from 18-pulse transformer Zen, characterized in that: each phase transformer windings 6, wherein the primary winding 4, two secondary windings, WA phase, for example, from the winding structure Zen transformer and winding concrete connection mode: primary four windings, one of which extend the winding ^ 3), three short winding (313 \ 3/1/1/32), the secondary side two short winding (clc, cb2), primary and secondary windings of the current flowing through different, but inter-winding common end, the first end of the a-phase primary extended winding (Aa) of (a) for the a-phase voltage input, connect the input voltage source ( Va), an intermediate terminal (a) and B-phase secondary short winding (ala, ac2) sequentially formed by connecting tap a connection, together form the voltage terminals (a), 3 set of primary short winding a phase (say 1 said / said / b ", b" a2) sequentially connected to form two voltage terminals said /, b "; 3 set of primary short winding (say 1 say / said / b", b "a2) sequentially formed by connecting head-end (al) and the B-phase secondary side two short winding (ala, ac2) are connected in the first end (al) is connected; 3 set of primary short winding (say 1 said \ said, "1 / Yue 2) terminal sequence connections (say 2) connection (: phase secondary side two short winding technology-oriented, 6 Yue 2) the end of the sequence to form is connected (a2); a phase secondary side two short winding (clc, cb2) order connected to form a voltage terminals (C); secondary short winding klc, cb2) sequence to form a head-end (C) connected to the C phase primary short winding (ClC ^, C ^ a ", a" c2) order to form the first end (Cl); short secondary winding (clc, cb2) sequence to form the tail end (b2) and the B phase primary winding of the three short of /, b / C ", c" trailing b2) connected to form a sequence of 2 ) connected connection with a B phase C phase similar.
2. 降压式18脉冲自禪变压器实现对输入电压宽范围(28V-280V)调节的方法及其绕组应比关系,其特征在于:在权利要求1的基础上,自禪变压器每相原副边绕组之间满足一定的应比关系,WA相为例,说明具体的应比关系:设原边3个短绕组(曰1曰/、曰/1/、1/曰2)应数比总和为1,原边延长绕组(Aa)的应数Nn与降压比满足关系:7^)/2.99.原边延长绕组(Aa)与原边;个短绕组(313\3、"、1/32)总和应数之比为(VW-1-71)/2.99:1, 原边S个短绕组(ala/、a/b"、b"a2)与原边延长绕组(Aa)的应数之比为0.29875:0.4025: 0.29875:(7^^-7^)/2.99,副边2个短绕组((31(3,诚2)与原边延长绕组(4曰)的应数之比为0.15896:0.15896:(7^^-7^)/2.99,自禪变压器输出主电压(3,化,。)幅值为网侧输入相电压(Va,Vb,Vc)幅值的1/b倍,辅助电压(Va',Vb',V。')和(Va",Vb",V。")的电压幅值为网侧输入相电压(Va,Vb,Vc)幅值的0.767/b倍,引出端曰,曰/,a"的相位分别相差37,引出端b,b/, b"的相位分别相差37,引出端c,c/,c"的相位分别相差37,B、C相绕组的应数之比与A相一致。 2. Buck from 18-pulse transformer to achieve the Zen wide input voltage range (28V-280V) should be regulated Its winding ratio relationship, characterized by: 1 basis in the claims, since Zen transformer primary and secondary windings for each phase should meet a certain ratio between the windings, WA relative to illustrate the relationship between the ratio of the specific application: Let the primary winding 3 short (1 Yue Yue / Yue / 1/1/2 said) than the sum of the number should 1, to extend the primary winding (Aa) shall be the number of the step-down ratio Nn satisfy the relationship: 7 ^) / 2.99 prolong primary winding (Aa) and the primary side; a short winding (313 \ 3, "1/32. ) shall be the sum of the number ratio of (VW-1-71) /2.99:1, S short primary winding (ala /, a / b ", b" a2) and extend primary winding (Aa) shall be the number of ratio of 0.29875: 0.4025: 0.29875: (7 ^^ --7 ^) / 2.99, two short secondary winding ((31 (3, Cheng 2) and extend primary winding (4 reads) the ratio of the number shall be 0.15896 : 0.15896: (7 ^^ --7 ^) / 2.99, from Zen master transformer output voltage (. 3, of, ) is the amplitude of the input side of the network phase voltage (Va, Vb, Vc) magnitude 1 / b times, auxiliary voltage (Va ', Vb', V. ') and (Va ", Vb", V. ") voltage amplitude of the input voltage network side (Va, Vb, Vc) magnitude 0.767 / b times, terminals, saying, say /, a "phase, respectively, a difference of 37 , terminals b, b /, b" phase, respectively, a difference of 37 , terminals c, c /, c "phase, respectively, a difference of 37 , B, C and a phase winding ratio of the number should be consistent.
Description  translated from Chinese
宽范围降压式18脉冲自耦变压整流器 Wide range buck rectifier 18-pulse autotransformer

技术领域 TECHNICAL FIELD

[0001] 本发明属于电能变换领域,具体指一种宽范围降压式18脉冲自耦变压整流器。 [0001] The present invention belongs to the field of power conversion, specifically refers to a wide range of buck rectifier 18-pulse autotransformer.

背景技术 Background technique

[0002] 多脉冲整流技术具有结构简单,高效可靠,过载能力强等优点,因而在航空领域应用广泛。 [0002] The multi-pulse rectifier technology has a simple structure, efficient and reliable, strong overload capacity, etc., which are widely used in the aviation field. 多脉冲整流技术按照输出电压脉冲数可以分为12脉冲,18脉冲,24脉冲,30脉冲等, 使得网侧电流变为相应脉冲数,与输出电压同相位的阶梯波,实现功率因数校正以及谐波抑制功能,且脉冲数越多相应的交流侧电流THD值越低但是变压器结构越复杂。 Multi pulse rectifier technology in accordance with the output voltage pulses can be divided into 12-pulse, 18-pulse, 24-pulse, 30 pulse, etc., so that the line current into a corresponding number of pulses, and the output voltage of the same phase of the staircase, to achieve power factor correction and harmonic wave suppression function, and the more the lower the corresponding value of the AC side current THD but more complex transformer structure pulse number. 综合考虑网侧电流THD值以及电路复杂程度选用18脉冲变压整流技术。 Considering the line current THD value and the degree of complexity of the selection circuit 18 pulse transformer rectifier technology.

[0003] 隔离式多脉冲变压整流器通过合理设计变压器绕组结构及变比可以实现28V直流输出。 [0003] Isolated multi-pulse transformer rectifier transformer winding through the rational design of the structure and ratio can be achieved 28V DC output. 但是变频输入情况下输出电压调整率变化大,输入电流谐波含量高,难以满足航空标准。 However, the output voltage regulation downconverted input circumstances change, high input current harmonic content, it is difficult to meet aviation standards. 自耦变压器相较传统的隔离变压器可以有效降低变压器等效容量,减少变压器的体积和重量,同时功率传输效率更高。 Compared to a conventional autotransformer transformer isolation transformer can effectively reduce the equivalent capacity, reducing the size and weight of the transformer, while the higher power transmission efficiency. 但是传统的18脉冲自耦变压整流器通过桥式变换电路整流输出,输出电压偏高且难以调节,不能满足当前航空领域低压直流供电系统的要求。 However, the traditional 18-pulse autotransformer through the bridge rectifier circuit converting rectifier output, the output voltage is high and difficult to regulate, can not meet the requirements of low-voltage DC power supply current aviation system. 通过后级级联降压电路虽然可以实现输出电压降压调节但是电路比较复杂且效率降低。 Cascade through the step-down circuit can be achieved although the output voltage buck regulator circuit, but more complex and less efficient.

发明内容 SUMMARY

[0004] 本发明的目的是实现自耦变压整流器输出电压降压调节,提供一种宽范围降压式18脉冲自耦变压整流器。 [0004] The object of the present invention is to achieve auto transformer rectifier output voltage buck regulator to provide a wide range of buck rectifier 18-pulse autotransformer.

[0005] 为实现上述目的,本发明采用的方案为: [0005] To achieve the above object, the present invention is used in the program:

[0006] -种宽范围降压式18脉冲自耦变压整流器。 [0006] - a wide range of species of buck rectifier 18-pulse autotransformer. 所述整流变换器的输入电压经过降压式18脉冲自耦变压器降压调节,产生3组三相交流电压连接整流桥电路,输出电压范围28V-280V〇 The converter input voltage rectifier buck through 18-pulse autotransformer buck regulator to generate 3-phase AC voltage group connected rectifier bridge circuit, the output voltage range of 28V-280V〇

[0007] 所述降压式18脉冲自耦变压器(以A相为例)每相共6个绕组,原边1组延长绕组、3 个短绕组(延长绕组Aa,短绕组ala'、 &/1/、1/&2),副边2个短绕组((31(3,(^2) (^相电压源连接原边延长绕组(Aa)的首端(A),延长绕组末端(a)连接B相副边短绕组(ala,ac2)的中间抽头a,形成电压引出端(a) j相原边3个短绕组(ala'b〃、b〃a2)顺序连接形成2个电压引出端a',b〃,首端(al)及末端(a2)。其中首端(al)及末端(a2)分别连接B相副边短绕组(ala, ac2)顺序连接形成的首端(a 1),C相副边短绕组(blb,ba2)顺序连接形成的末端(a2)。A相副边短绕组(clc,cb2)顺序连接形成电压引出端(c),首端(cl)及尾端(b2)。其中首端(cl)及尾端(b2)分别连接C相原边短绕组(clV,(/ &〃,&〃(32)顺序连接形成的首端((31)及8相原边短绕组(bit/顺序相连形成的尾端(b2)。各相绕组间有公共端但各绕组流过的电流不同。B相和C相的绕组结构与连接方式与A相相似。 [0007] The step-down 18-pulse autotransformer (relative to A Case Study) each with a total of six windings, the primary group to extend the winding, three short winding (extended winding Aa, short winding ala ', & / 1/1 / & 2), the secondary side two short windings ((31 (3, (^ 2) (^ phase voltage source connected to the primary extension first end windings (Aa) of (the a), to extend the winding end (a) short connection B phase secondary winding (ala, ac2) intermediate tap a, forming a voltage terminals (a) are connected in phase j primary three short winding (ala'b〃, b〃a2) forming two terminals a voltage ', b〃, the first side (Al) and the end (a2). wherein the first side (Al) and the end (a2) are respectively connected to the phase B short secondary winding (ala, ac2) formed by connecting the first end of the sequence (a 1) , the short end of the C-phase secondary windings (blb, ba2) in order to form (a2) .A short phase secondary windings (clc, cb2) sequentially connected to form voltage terminals (c), the first end (cl) and a trailing end headend ((31) and 8-phase primary side (b2). which are connected in a head-end (cl) and a trailing end (b2) are connected to the C phase primary short winding (clV, (/ & 〃, & 〃 (32) is formed short winding (bit / order form attached to the rear end (b2). between the phase windings have a common end of the windings but the current flowing through the different .B phase C winding structure and connection with a similar.

[0008] 所述宽范围降压式18脉冲自耦变压器通过延长绕组实现对输入电压的降压调节。 [0008] The wide range buck by extending the 18-pulse autotransformer windings to achieve the input voltage buck regulator. 同时自耦变压器产生3组三相交流电压,且每组电压之间有37移相(即主电压(V a,Vb,Vc)的幅值为网侧输入相电压(VA,VB,Vc)幅值的Ι/b倍,辅助电压(Va',Vb',V。')和%〃^',。〃)的电压幅值为网侧输入相电压(Va,Vb,Vc)幅值的0.767/b倍。 Meanwhile autotransformer-phase AC voltage generated three groups, and have 37 phase shift (ie, primary voltage (V a, Vb, Vc) of the amplitude of the input voltage network side (VA, VB, Vc between each voltage ) amplitude Ι / b times the auxiliary voltage (Va ', Vb', V. ') and% 〃 ^', .〃) voltage amplitude of the input voltage network side (Va, Vb, Vc) web 0.767 / b times the value. 引出端,a〃的相位分别相差37,引出端b,V,b〃的相位分别相差37,引出端c,V,c〃的相位分别相差37)以A相为例, 原边延长绕组(Aa)的匝数Nn与降压比满足关系: Terminals, respectively a〃 phase difference of 37 , terminals b, V, respectively b〃 phase difference 37 , terminals c, V, respectively, the phase difference c〃 37 ) to the A phase as an example, primary side extend the winding (Aa) and step-down ratio of the number of turns Nn satisfy the relationship:

Figure CN105515405AD00041

设原边短绕组ala'b〃、b〃a2匝比总和为1,则原边延长绕组(Aa)与原边三个短绕组(ala7b〃、b〃a2) 总和匝数之比) Let the primary winding ala'b〃 short, b〃a2 turns than the sum of 1, the extension of the primary winding (Aa) and three short primary winding (ala7b〃, b〃a2) than the sum of the number of turns)

Figure CN105515405AD00042

原边三个短绕组(ala\aM/、b〃a2)与原边延长绕组(Aa)的匝数之比为 Three short primary winding (ala \ aM /, b〃a2) winding (Aa) and the ratio of the number of turns of the primary side extended to

Figure CN105515405AD00043

副边2个短绕组(clc, cb2)与原边延长绕组(Aa)的匝数之比为 2 Short secondary windings (clc, cb2) and extend primary winding (Aa) as the ratio of the number of turns

Figure CN105515405AD00044

B、C相绕组的匝数之比与A相一致。 B, the turns ratio between the A C-phase windings are consistent.

[0009] 所述三组整流桥电路并联输出,输出电压为任意时刻三组输入交流电压线电压最大值,输出电压范围28V-280V。 [0009] The three sets of parallel rectifier bridge output circuit, the output voltage of the three groups at any time AC voltage input line voltage maximum output voltage range of 28V-280V. 整流桥中二极管按照相应的线电压矢量切换次序导通,其中主桥二极管每一周期各导通80,辅桥二极管每周期各导通20。 Bridge rectifier diode according to the corresponding line voltage vector switching sequence is turned on, each of which the main bridge diode conduction period of each 80 , the auxiliary diode bridge of each week turned 20 .

[0010] 有益效果:与现有的18脉冲自耦变压器的整流变换器相比,本发明提供的宽范围降压式18脉冲自耦变压整流器在原有的18脉冲自耦变压器的基础上每相增加一组延长绕组实现对输入电压的降压调节,解决原有自耦变压整流器输出电压偏高且难以调节的问题。 [0010] beneficial effects: Compared with conventional 18-pulse rectifier transformer autotransformer wide range buck rectifier 18-pulse autotransformer provided by the invention in the original 18-pulse autotransformer each a set of extended winding phase increases to achieve the input voltage buck regulator, to solve the original auto transformer rectifier output voltage is high and difficult adjustment problems. 本发明提供的宽范围降压式18脉冲自耦变压整流器输入电流为18阶梯波,谐波含量小。 A wide range of 18-pulse autotransformer buck converter of the present invention to provide an input current of 18 step wave, small harmonic content. 本发明所述的降压式自耦变压整流器实现28V-280V宽范围电压输出,拓宽变压整流器应用范围。 Buck auto transformer rectifier according to the present invention is to achieve a wide range of 28V-280V output voltage, transformer-rectifier broaden the range of applications.

附图说明 BRIEF DESCRIPTION

[0011] 附图1为降压式18脉冲自耦变压整流器电路图; [0011] FIG. 1 is a buck rectifier 18-pulse autotransformer circuit diagram;

[0012] 附图2为自耦变压器绕组绕制图; [0012] FIG. 2 is a drawing autotransformer windings;

[0013]附图3为自耦变压器绕组结构图; [0013] FIG. 3 is a block diagram of the auto-transformer windings;

[0014]附图4为自耦变压器输入电流波形图; [0014] Figure 4 is an autotransformer input current waveform;

[0015]附图5为系统A相输入电流与电压仿真波形; [0015] FIG. 5 is a system of A-phase input current and voltage simulation waveforms;

[0016]附图6为系统输出电压仿真波形; [0016] FIG. 6 is a simulation system output voltage waveform;

[0017] 上面附图中的主要符号说明:VA,VB,Vc--网侧三相输入电压,iA,iB,ic--三相输入电流,Nn--原边延长绕组(以A相为例:Aa)匝数,NP1,Np2--原边短绕组(以A相为例: a W或b〃 a2、Y b〃)匝数,Ns--副边短绕组(以A相为例:c 1 c,cb2)匝数,Va,Va',Va〃一一引出端电压,,t/,(/,a〃,b〃,c〃--电压引出端,U。--输出电压,Id--输出电流有效值 [0017] The above description of the drawings of the main symbols: VA, VB, Vc-- network side three-phase input voltage, iA, iB, ic-- three-phase input current, Nn-- extend the primary winding (the A phase Example: Aa) turns, NP1, Np2-- short primary winding (the A phase as an example: a W or b〃 a2, Y b〃) turns, Ns-- secondary winding short (relative to A Case Study : c 1 c, cb2) turns, Va, Va ', Va〃 eleven terminals voltage ,, t /, (/, a〃, b〃, c〃-- voltage terminals, U .-- output voltage , Id-- output current rms

具体实施方式 detailed description

[0018] 下面对本发明技术方案进行详细说明,但是本发明的保护范围不局限于所述实施例。 [0018] Next, the aspect of the present invention will be described in detail, but the scope of the present invention is not limited to the embodiments.

[0019] 实施例:如图1所示为降压式18脉冲自耦变压整流器电路图,降压比b = 2,输出电压υ〇=14〇ν。 [0019] Example: FIG. 1 is a buck 18-pulse rectifier circuit shown autotransformer, step-down ratio b = 2, the output voltage υ〇 = 14〇ν. 所述系统中的降压式18脉冲自耦变压器(以A相为例)每相原边分别有1组延长绕组、3个短绕组(延长绕组Aa,短绕组&1&\&4〃、1/ &2),副边有2个短绕组((31(3,(^2),见图2。绕组具体连接方式:A相原边延长绕组(Aa)的首端(A)为A相电压输入端,连接输入电压源,末端(a)与B相副边短绕组(ala,ac2)顺序连接形成的中间抽头a连接,形成电压引出端(a) J的原边3个短绕组(ala7b〃、b〃a2)顺序连接形成2个电压引出端a',b〃,首端3个短绕组( &1&/、&/1/、1/ &2)顺序连接形成的首端(&1),末端(&2)分别连接时目副边2个短绕组(a la,ac2)顺序连接形成的首端(a 1),C相副边2个短绕组(b 1 b,ba2)顺序连接形成的末端(a2)的末端(&2)2相副边短绕组(clc,cb2)顺序连接形成电压引出端(c),副边短绕组(clc,cb2)顺序连接形成首端(cl)、尾端(b2)分别与C相原边短绕组(clV,(/ &〃,&〃(32)顺序连接形成的首端(cl)及Β相原边短绕组(bib',1/,,(3%2)顺序相连形成的尾端卬2)相连接。B相和C相的连接方式与A相相似。 The system buck 18-pulse autotransformer (in phase A as an example) for each phase primary, respectively, a group of extended winding, three short winding (extended winding Aa, short winding & 1 & \ & 4 〃, 1 / & 2) , there are two short secondary winding ((31 (3, (^ 2), shown in Figure 2. the winding concrete connection: a prolonged phase primary winding (Aa) of the first side (a) for the a-phase voltage input connection input voltage source, the intermediate terminal (a) and the B-phase short secondary winding (ala, ac2) formed by sequentially connecting a tap connected to form a voltage terminals (a) J is the primary winding 3 short (ala7b〃, b〃 a2) sequentially connected to form two voltage terminals a ', b〃 head-end three short winding (& 1 & / & / 1/1 / & 2) order to form the first end (& 1), the end (& 2), respectively connected mesh secondary side two short winding (a la, ac2) head-end (a 1) the order of connection is formed, C-phase secondary side two short winding (b 1 b, ba2) sequentially connecting end forming (a2) is end (& 2) 2-phase secondary short winding (clc, cb2) sequentially connected to form voltage terminals (c), the secondary short winding (clc, cb2) order to form the first end (cl), the tail end (b2), respectively C-phase primary short winding (clV, (/ & 〃, & 〃 (32) order to form the first end (cl) and Β phase primary short winding (bib ', 1 / ,, (3% 2) connected in order form the end of Ang 2) connected to the connection with the a .B phase C phase similar.

[0020] 降压式自耦变压器通过每相增加一组延长绕组实现对输入电压的降压调节,实现28V-280V宽范围电压输出。 [0020] step-down autotransformer each phase adding a set of windings to achieve extended input voltage buck regulator to achieve a wide range of 28V-280V voltage output. 自耦变压器每相增加的延长绕组与其每相原边3个短绕组之间具有一定的匝比关系。 It has a turns ratio between the auto-transformer windings for each phase increases to extend its every phase three primary windings short. 以A相为例,设原边短绕组&1&/、&/1/、1/ /&2匝比总和为1,则原边延长绕组(Aa)与原边三个短绕组(ala7、& /1/、1/&2)总和匝数之比为0.716:1。 In phase A, for example, provided the primary short winding & 1 & / & / 1/1 / / & 2 turns than the sum of 1, the primary extended winding (Aa) with the primary three short winding (ala7, & / 1 / 1 / & 2) the sum of the turns ratio of 0.716: 1. 原边延长绕组(Aa)的匝数Nn与降压比满足关系: Extend the primary winding (Aa) and step-down ratio of the number of turns Nn satisfy the relationship:

Figure CN105515405AD00051

泽压式自耦变压器每相原边短绕组,副边短绕组与原边延长绕组之间有固定的匝比以实现自耦变压整流器的3 组三相交流电压输出且每组电压之间产生37移相。 Ze-pressure auto-transformer primary winding is short, short secondary winding and primary winding fixed to extend between the turns ratio between the auto transformer rectifier to achieve three sets of three-phase AC voltage and output voltage is generated per each phase 37 phase shift. 原边三个短绕组(ala\aM/、b〃a2)与原边延长绕组(Aa)的匝数之比为0.29875:0.4025:0.29875:0.716。 Three short primary winding (ala \ aM /, b〃a2) and extend primary winding (Aa) of the turns ratio of 0.29875: 0.4025: 0.29875: 0.716. 副边2个短绕组(clc, cb2)与原边延长绕组(Aa)的匝数之比为0.15896:0.15896:0.7163X相绕组的匝数之比与A相一致。 Two short secondary winding (clc, cb2) and the primary winding extension (Aa) of the turns ratio of 0.15896: 0.15896: ratio of the number of turns of the phase windings A 0.7163X consistent. 根据上述连接方式与匝比关系,引出端a',1/,(/超前引出端a,b,c 37,引出端&〃,1/,(/滞后超前引出端&,13,(3 37。变压器引出端电压^,~,1')幅值与网侧输入电压(Va)幅值满足以下关系:Va = 0 5Va,Va' = Va〃 = 0 3835Va。 According to the connection with the turns ratio relationship between terminals a ', 1 /, (/ lead terminals a, b, c 37 , terminals & 〃, 1 /, (/ lag-lead terminals &, 13, (3 . 37 pad voltage transformer ^, ~, 1 ') the amplitude of the input voltage and the network side (Va) amplitude satisfy the following relation: Va = 0 5Va, Va' = Va〃 = 0 3835Va.

[0021] 降压式18脉冲自耦变压器形成一组主交流输入电压以3,%,。 [0021] Step-Down 18-pulse autotransformer form a group of AC input voltage 3,%, . ),两组辅交流输入电压(Vy,Vv,V〃)和(V a〃,Vb〃,V。"),分别与相应的主整流桥和辅助整流桥相连接。降压式P型18脉冲自耦变压器为非对称型结构,所有的矢量电压经过整流桥并联输出,输出电压为任意时刻线电压最大值。整流桥中二极管按照相应的线电压矢量切换次序导通,其中主桥二极管每一周期各导通80,辅桥二极管每周期各导通20。降压式自耦变压整流器输出电压U〇=140V〇 ), Two auxiliary AC input voltage (Vy, Vv, V〃) and (V a〃, Vb〃, V. "), Respectively connected with the corresponding primary and secondary rectifier bridge rectifier bridge. Buck P-type 18 pulse autotransformer asymmetric structure, all vectors parallel output voltage through the rectifier bridge output voltage is the maximum voltage line at any time. bridge rectifier diode according to the corresponding line voltage vector switching sequence is turned on, each of which the main bridge diode a period of each turned 80 , the auxiliary diode bridge of each week turned 20 . buck auto transformer rectifier output voltage U〇 = 140V〇

[0022] 为验证本发明的有效性,以附图1中降压式18脉冲自耦变压整流器电路图,降压比为2为例进行仿真试验。 [0022] In order to verify the effectiveness of the present invention to Figure 1 Buck rectifier 18-pulse autotransformer circuit diagrams, step-down ratio of 2 as an example simulation. 图2所示为降压式18脉冲自耦变压器绕组绕制图,说明各相绕组的具体连接方式及绕组电流流向。 Figure 2 shows the buck pulse autotransformer windings 18 drawings, specific description of each connection and the winding current flow phase winding. 图3所示为降压式18脉自耦变压器的绕组结构图,主交流输入电压( 3,^。)与两组辅交流输入电压(^,^,。〇和(3〃,^',。〃)之间分别有生37移相。电压幅值关系以A相为例,变压器引出端电压(V a,W,Va〃)幅值与网侧输入电压(VA)幅值满足以下关系上=0.5/^^= 3〃=0.3835/1。图4所示为降压式18买自耦变压器输入电流理论波形图,图中可以看出输入电流为18阶梯波。在115V/400HZ输入,28V 20A纯阻性负载输出时,变压整流系统的输入电流波形如图5所示,输入电流为18阶梯波,主要谐波为17、19 次谐波,总谐波含量为8.37%,满足航空领域谐波标准的要求。附图6为直流输出电压波形, 电压输出值为140.43V,电压纹波值为0.2087V,电压纹波小,输出电压平稳,系统稳定。 Figure 18 shows the buck pulse autotransformer winding diagram, AC input voltage ( 3, ^ .) 3 with two auxiliary AC input voltage ( ^, ^, .〇 and ( 3〃, animate between ^ ', .〃) respectively 37 phase shift. A phase voltage amplitude relation to, for example, leads to the transformer terminal voltage (V a, W, Va〃) amplitude and network side input voltage (VA) amplitude satisfy the following relation = 0.5 / ^^ = 3〃 = Buy as shown step-down autotransformer 18 input current waveform theory 0.3835 / 1. 4, can be seen in Fig. the input current of 18 step wave at 115V / 400HZ input, 28V 20A resistive load output, the input current waveform transformer rectifier system shown in Figure 5, the input current of 18 ladder wave harmonic of the main 17, 19 harmonics, total harmonic content of 8.37%, to meet the requirements of aerospace harmonic standards. Figure 6 is a DC output voltage waveform, the voltage value of the output 140.43V, ripple voltage is 0.2087V, small voltage ripple , stable output voltage, the system is stable.

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Classifications
International ClassificationH01F30/02, H02M5/10, H02M7/04, H01F27/28
Cooperative ClassificationH02M7/003, H01F27/28, H01F30/02, H02M5/10, H02M7/04
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