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    • 2. 发明公开
    • Model predictive control with reference tracking
    • Prognostische Modellsteuerung mit Bezugsverfolgung
    • EP2725706A1
    • 2014-04-30
    • EP12189564.3
    • 2012-10-23
    • ABB Technology AG
    • Quevedo, DanielGeyer, Tobias
    • H02P27/12H02P27/14H02M7/487
    • H02M7/483H02M7/487H02P21/0017H02P23/00H02P27/12H02P27/14
    • An electrical converter (10) comprising a plurality of semiconductor switches (16), wherein the electrical converter is adapted for generating a two-level or multi-level output voltage from an input voltage by switching the plurality of semiconductor switches (16).
      A method for controlling the electrical converter (10) comprises the steps of: receiving a reference electrical quantity ( i S * ) and an actual electrical quantity (i S ); determining a sequence of future electrical quantities of the electrical converter (10) from the actual electrical quantity; determining a maximal cost value based on the sequence of future electrical quantities; iteratively determining an optimal switching sequence for the electrical converter (10), wherein a switching sequence comprises a sequence of future switching states for the semiconductor switches of the electrical converter; and selecting the first switching state of the optimal switching sequence as the next switching state ( u ) to be applied to the semiconductor switches (16) of the electrical converter (10).
      The optimal switching sequence is iteratively determined by: extending a switching sequence by appending a possible switching state to the switching sequence; determining a cost value for the extended switching sequence with a cost function based on the sequence of future electrical quantities; and discarding the extended switching sequence, when the cost value is higher than the maximal cost value.
    • 一种包括多个半导体开关(16)的电转换器(10),其中所述电转换器适于通过切换所述多个半导体开关(16)从输入电压产生二电平或多电平输出电压。 一种用于控制电转换器(10)的方法,包括以下步骤:接收参考电量(i S *)和实际电量(i S); 从实际电量确定电转换器(10)的未来电量的顺序; 基于未来电量的顺序确定最大成本值; 迭代地确定用于所述电转换器(10)的最佳切换序列,其中切换序列包括所述电转换器的半导体开关的未来切换状态序列; 以及选择最佳切换序列的第一切换状态作为要施加到电转换器(10)的半导体开关(16)的下一个切换状态(u)。 迭代确定最佳切换序列:通过将可能的切换状态附加到切换序列来扩展切换序列; 基于未来电量的顺序,以成本函数确定扩展切换序列的成本值; 并且当成本值高于最大成本值时,丢弃扩展的切换序列。
    • 5. 发明公开
    • A SPACE VECTOR BASED SYNCHRONOUS MODULATING METHOD AND SYSTEM
    • AUF EINEM RAUMVEKTOR基础同步调制系统
    • EP2290805A1
    • 2011-03-02
    • EP09761249.3
    • 2009-02-17
    • Zhuzhou CSR Times Electric Co., Ltd.
    • DING, RongjunLI, JianghongCHEN, GaohuaXU, WeiCHEN, Huaguo
    • H02P21/00
    • H02P27/12
    • A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle Δθ of the reference voltage vector by Δθ=2π/N; obtaining a modulating angle θm of the reference voltage vector by θm=(Nth-1)×Δθ, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle θm and the passing angle Δθ of the reference voltage vector and the modulating ratio m; comparing a variable quantity θf of the reference voltage vector angle θ and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the reference voltage vector by the basic voltage vectors.
    • 基于空间矢量的同步调制方法包括对参考电压矢量的频率f进行采样; 通过频率f检查频率和载波比的关系表,以获得载波比N; 通过“¸= 2 / N获得参考电压矢量的通过角”¸; 通过¸m=(Nth-1)ד¸获得参考电压矢量的调制角度¸m,其中Nth表示采样的时间; 根据调制比 - 频率曲线获得调制比m; 根据参考电压矢量和调制比m的调制角度¸m和通过角度¸计算和合成基准电压矢量的三个基本电压矢量的输出角; 将参考电压矢量角¸的可变量¸f与三个基本电压矢量的输出角进行比较,并根据比较结果输出相应的基本电压矢量; 根据基准电压矢量合成基准电压矢量的输出电压。
    • 6. 发明公开
    • Pulse code with modulation motor drive system
    • Impulscode mit Modulations-Motorantriebssystem
    • EP2139107A2
    • 2009-12-30
    • EP09008134.0
    • 2009-06-22
    • System Homes Company, Ltd.
    • Yoshino, Hozo
    • H02P6/18H02P27/12
    • H02P23/0077H02P6/185H02P27/12
    • A detailed architectural and operational characteristic of a pulse code width modulation (PCWM) motor drive system is presented. The system can drive a three phase permanent magnet AC (PMAC) motor sinusoidally without sensing its rotor position. The system employs an ultrasonic carrier frequency (e.g., of approximately 20 kHz) to avoid annoying acoustic noise problems. While keeping the hardware construction at a minimum, it can provide the highest possible motor performance by satisfying various motor operating requirements. The system may includes an AC to DC converter, an application specific integrated circuit (ASIC), a DC to DC step-down chopper, and a gate drive and power transistor circuitry to drive a three phase AC motor.
    • 提出了脉宽调制(PCWM)电机驱动系统的详细结构和运行特性。 该系统可以正弦波驱动三相永磁交流(PMAC)电机,而不会感测其转子位置。 该系统采用超声载波频率(例如,大约20kHz),以避免恼人的声学噪声问题。 在将硬件结构保持在最低限度的同时,可以通过满足各种电机运行要求,提供最高的电机性能。 该系统可以包括AC到DC转换器,专用集成电路(ASIC),DC-DC降压斩波器,以及用于驱动三相AC电动机的栅极驱动和功率晶体管电路。
    • 7. 发明公开
    • Method and arrangement in connection with frequency converter
    • Verfahren und Vorrichtung in Verbindung mit einem Frequenzumrichter
    • EP1691478A2
    • 2006-08-16
    • EP06101401.5
    • 2006-02-08
    • ABB Oy
    • Heikkilä, Samuli
    • H02P23/00H02P27/12
    • H02P27/12H02M7/5395H02M2001/0022
    • A method and arrangement for determining the effective time of a voltage pulse of phase voltage generated by a frequency converter provided with an intermediate voltage circuit, the voltage pulses of the phase voltage being generated from the upper and lower voltage levels (U DC , 0) of the intermediate voltage circuit, the voltage levels showing a difference in potential (U DC ). The method comprises the steps of generating a first reference voltage (U ref1 ) and a second reference voltage (U ref2 ); scaling the phase output voltage by means of the scaling coefficient (k); comparing the low-pass filtered phase output voltage with the first reference voltage (U ref1 ); detecting a time instant (t 1 ) when the low-pass filtered phase output voltage exceeds the first reference voltage (U ref1 ); comparing the low-pass filtered phase output voltage with the second reference voltage (U ref2 ); detecting a time instant (t 2 ) when the low-pass filtered phase output voltage is lower than the second reference voltage (U ref2 ); and calculating the effective time of the voltage pulse on the basis of the time between the first and the second time instants and a constant term.
    • 一种用于确定由具有中间电压电路的变频器产生的相电压的电压脉冲的有效时间的方法和装置,所述相电压的电压脉冲是从上和下电压电平(U DC,0)产生的, 的中间电压电路,电压电平显示电位差(U DC)。 该方法包括产生第一参考电压(U ref1)和第二参考电压(U ref2)的步骤; 通过缩放系数(k)缩放相位输出电压; 将低通滤波相输出电压与第一参考电压(U ref1)进行比较; 当低通滤波相位输出电压超过第一参考电压(U ref1)时检测时刻(t 1); 将低通滤波相输出电压与第二参考电压(U ref2)进行比较; 当所述低通滤波相位输出电压低于所述第二参考电压(U ref2)时,检测时刻(t 2); 以及基于第一和第二时刻之间的时间和恒定项计算电压脉冲的有效时间。
    • 10. 发明公开
    • Verfahren und Schaltungsanordnung zur Regelung eines zweidimensionalen Vektors einer Strecke mittels eines wertediskreten Stellgliedes mit begrenzter Schaltfrequenz
    • 方法和电路装置用于通过与一个有限的开关频率的值离散控制元件来调节轨道的二维矢量。
    • EP0505591A1
    • 1992-09-30
    • EP91104819.7
    • 1991-03-26
    • SIEMENS AKTIENGESELLSCHAFT
    • Amler, Gerald, Dipl.-Ing.
    • H02M5/45H02P5/40
    • H02P27/12H02M5/4505H02M7/529H02P21/00
    • Die Erfindung bezieht sich auf ein Verfahren und eine Schaltungsanordnung (32) zur Regelung eines zweidimensionalen Vektors (u s ) einer Strecke (10,12) mittels eines wertediskreten Stellgliedes (8) mit begrenzter Schaltfrequenz (f s ). Erfindungsgemäß wird zunächst ein Stellgrößen-Sollwert (ip ) ausgewählt, der sich aus den Sollwerten (u* s ,i* s ) dieses zweidimensionalen Vektors (u s ) der Regelstrecke (10,12) ergibt, werden diese Stellgrößen-Istwerte (i pn ,i pn+1 ,i pn+2 ) während einer Schaltperiode (Tg es ) in einer vorbestimmten Reihenfolge und mit vorbestimmten Verweildauern (T n ,T n+1 , T n+2 ) so abgewechselt, daß der zeitliche Mittelwert des ersten Vektors (u s ) über einen Umlauf einer gebildeten Soll-Trajektorie (TR * ) gleich seinem Sollwert (u; ) ist, und wird genau dann der nächste Vektor (i pn+1 ,i pn+2 ,i pn ) des ausgewählten Srellgrößen-Vektortripels angesteuert, wenn der Abstand zwischen dem Vektor (u s ) und dem nächsten Eckpunkt (u so ) der Ortskurve (TR * ) minimal wird. Somit erhält man bei gegebener beschränkter Schaltfrequenz (f s ) eine minimale Abweichung vom Sollwert, wobei der zeitliche Mittelwert mit dem Sollwert übereinstimmt, und gleichzeitig eine kürzest mögliche Anregelzeit.
    • 本发明涉及一种用于通过离散值的控制手段的路径的二维矢量(US)(10,12)的致动具有有限的开关频率元件(8)的方法和电路装置(32)( FS)。 。根据本发明,一个控制变量所需值(IP *)最初选择所有这一切都被从期望的值生成该二维矢量控制路径的(U)(10,12)的(我们*是*) 合成控制变量实际值(IPN,IPN + 1 IPN,+ 2)以规定的顺序,并与规定的停留持续时间(TM,TM + 1,TM + 2)在一个开关周期(Tges)交替检查没的时间平均 所述第一矢量的值(US)等于期望值(我们*)超过一圈形成期望的轨迹(TR *),并且下一个向量的(IPN + 1,IPN + 2,IPN)的选定的控制的 变量向量三重然后驱动正是当矢量(US)和位置曲线(TR *)的下一个角点(USO)之间的分离是最小的。 因此,与给定的,有限的开关频率(fs)从所希望的值的最小偏差获得,时间平均值相应于所需值,以及一个控制响应时间的所有这是尽可能短于在Sametime获得 , ... ...