公开(公告)号：US4737900A

公开(公告)日：1988-04-12

申请号：US52233

申请日：1987-05-20

Applicant: Matti Kahkipuro ,  Harri Hakala ,  Pekka Nummi ,  Urpo Sten

Inventor： Matti Kahkipuro ,  Harri Hakala ,  Pekka Nummi ,  Urpo Sten

IPC: H02P3/12 ,  B66B1/28 ,  H02M5/458 ,  H02P3/22 ,  H02J3/36

CPC classification number: H02M5/458 ,  B66B1/308 ,  H02P3/22

Abstract: A method of and apparatus for controlling a braking resistor, provided in a d.c. circuit of a frequency converter, by rectifying a mains voltage, by means of a first rectifier bridge connected to a three-phase mains supply, to form an actual value voltage; comparing said actual value voltage and a reference voltage; and operating a switch in series with the braking resistor to cause the latter to conduct when the comparison indicates that the actual value voltage is greater than the reference voltage. The reference voltage is formed from a rectified voltage obtained from the three-phase mains supply and rectified by a second rectifier bridge.

Abstract translation: 一种用于控制制动电阻器的方法和装置，其设置在直流 通过连接到三相电源的第一整流桥来整流一个电源电压来形成一个实际的电压值; 比较所述实际值电压和参考电压; 并且当比较指示实际值电压大于参考电压时，与制动电阻串联操作开关，以使后者导通。 参考电压由从三相电源获得的整流电压形成，并由第二整流桥整流。

公开(公告)号：US4621222A

公开(公告)日：1986-11-04

申请号：US758975

申请日：1985-07-25

Applicant: Matti Kahkipuro ,  Heimo Makinen

Inventor： Matti Kahkipuro ,  Heimo Makinen

IPC: B66B1/30 ,  H02P7/16

CPC classification number: B66B1/30

Abstract: The present invention concerns a method for improving the dynamic converter drive for a direct current elevator motor, in which the said motor is controlled by adjusting the magnetization of the generator linked to the lifting motor, such adjustment being achieved by means of a power electronics stage controlled by the elevator speed control system, using at least elevator speed and motor current consumption (or other current information proportional thereto) as feedback parameters. The intended improvement is achieved by measuring the current values at two different points in the magnetizing circuit of the generator by means of current measuring resistors, the result of the measurement at the first point indicating the generator magnetizing current value, which is supplied to the speed control unit of the speed control system, and the current measured at the second point representing the thyristor bridge current value, which is supplied to the circuit responsible for bridge changeover control in the said power electronics stage.

Abstract translation: 本发明涉及一种用于改进直流电梯电动机的动态转换器驱动的方法，其中所述电动机通过调节与提升电动机相连的发电机的磁化来控制，这种调节是通过电力电子装置级 由电梯速度控制系统控制，至少使用电梯速度和电机电流消耗（或与其成比例的其他当前信息）作为反馈参数。 通过用电流测量电阻来测量发电机的磁化电路中的两个不同点的电流值来实现预期的改进，第一点的测量结果表示发电机励磁电流值，其被提供给速度 速度控制系统的控制单元，以及表示晶闸管桥电流值的第二点处测量的电流，其被提供给负责所述电力电子设备级中的桥接切换控制的电路。

公开(公告)号：US4393442A

公开(公告)日：1983-07-12

申请号：US218767

申请日：1980-12-22

Applicant: Matti Kahkipuro

Inventor： Matti Kahkipuro

IPC: H02P7/292 ,  B66B1/30 ,  H02H7/09 ,  H02M7/17

CPC classification number: H02H7/09 ,  B66B1/30

Abstract: A method and apparatus for monitoring current data in a thyristor-controlled direct current drive, the drive system comprising two thyristor bridges converting alternating current into direct current for the drive motor and a current measuring unit. With the aid of a current controller the drive system is caused to operate in one of two different modes of operation, so that as the system approaches zero current condition, the normal mode of operation changes to an oscillating mode, the direct current circuit being monitored with the aid of a delayed current indicator datum in the zero current situation as well.

Abstract translation: 一种用于监测可控硅控制的直流驱动中的电流数据的方法和装置，所述驱动系统包括将交流电转换成用于驱动电动机的直流电流和电流测量单元的两个晶闸管桥。 借助于电流控制器，使驱动系统以两种不同的操作模式操作，使得当系统接近零电流状态时，正常工作模式变为振荡模式，直流电路被监测 借助于零电流情况下的延迟电流指示器数据。

公开(公告)号：US5194797A

公开(公告)日：1993-03-16

申请号：US712832

申请日：1991-06-10

Applicant: Matti Kahkipuro

Inventor： Matti Kahkipuro

IPC: H02P21/12

CPC classification number: H02P21/12

Abstract: Procedure for regulating the stator flux and torque of an asynchronous motor by vector control in an imaginary space vector coordinate system, in which procedure the absolute value (.vertline..PSI..sub.s .vertline.) of the stator flux and the torque (M) are determined in said coordinate system, and in which procedure the calculation coordinates are in such a position that the rotor flux (.PSI..sub.r) is at least close to the real axis. In the procedure of the invention, the absolute value of the stator flux (.vertline..PSI..sub.s .vertline.) is regulated by means of the real part (u.sub.sr) of the stator voltage and the torque (M) by means of the stator frequency (f.sub.s). The calculation coordinates are held in said position by adjusting the imaginary part (u.sub.si) of the stator voltage.

公开(公告)号：US5042621A

公开(公告)日：1991-08-27

申请号：US426172

申请日：1989-10-25

Applicant: Seppo Ovaska ,  Matti Kahkipuro

Inventor： Seppo Ovaska ,  Matti Kahkipuro

IPC: B66B1/34

CPC classification number: B66B1/3407 ,  B66B1/34 ,  B66B1/3415

Abstract: Method and apparatus for the measurement and tuning of an elevator system including at least one elevator having an elevator car and its control and driving equipment. The method uses at least one computer connected to the system. The elevator system is measured and tuned using virtual measuring and tuning components operated by programs of the computer.

公开(公告)号：US4894765A

公开(公告)日：1990-01-16

申请号：US361661

申请日：1989-05-31

Applicant: Matti Kahkipuro

Inventor： Matti Kahkipuro

IPC: B66B5/02 ,  H02J7/34 ,  H02J9/06 ,  H02M3/158 ,  H02M7/797

CPC classification number: H02M3/1582 ,  B66B1/304 ,  H02J9/062 ,  H02M7/797 ,  H02P2201/07 ,  Y10T307/32 ,  Y10T307/383 ,  Y10T307/516 ,  Y10T307/675

Abstract: In a method of and apparatus for connecting a storage battery to an elevator inverter, the storage battery being connected to a d.c. circuit of the elevator inverter power stage, a voltage in the d.c. circuit is higher than the battery voltage. Power flows bidirectionally from the storage battery to the d.c. circuit and vice versa. When power is flowing from the storage battery to the d.c. circuit, the battery voltage is matched to the voltage in the d.c. circuit by the aid of a semiconductor switch, by means of which an energy store is charged, and a diode, by which the energy in the energy store is discharged into the d.c. circuit. When power is flowing from the d.c. circuit to the storage battery, the voltage of the d.c. circuit is matched to the battery voltage with the aid of a second semiconductor switch, by means of which the energy store is charged, and a second diode, by which the energy in the energy store is discharged into the storage battery.

Abstract translation: 在将蓄电池连接到电梯逆变器的方法和装置中，蓄电池连接到直流电。 电梯逆变器功率级电路，直流电压。 电路高于电池电压。 电源从蓄电池双向流向直流电。 电路，反之亦然。 当电源从蓄电池流向直流电 电路电压与直流电压相匹配。 借助于半导体开关的电路，通过该半导体开关对能量存储器进行充电，以及二极管，通过该二极管将能量存储器中的能量排放到直流电路中。 电路。 当电源从直流电流 电路到蓄电池，电压的直流。 借助于第二半导体开关对电池电压进行匹配，第二半导体开关通过该能量存储器被充电，以及第二二极管，通过该第二二极管将能量存储器中的能量排放到蓄电池中。

公开(公告)号：US4804067A

公开(公告)日：1989-02-14

申请号：US26028

申请日：1987-03-16

Applicant: Matti Kahkipuro

Inventor： Matti Kahkipuro

IPC: H02P27/06 ,  H02P25/10 ,  H02P27/08 ,  B66B1/30

CPC classification number: H02P25/10

Abstract: An apparatus for controlling a three-phase inverter supplying the a.c. motor of an elevator, the inverter having a power stage implemented with semiconductor switches, and the apparatus comprising an electronic control unit for producing a velocity reference value and a tachometer generator for producing an actual velocity value, voltage measuring elements for measuring a.c. voltages at the inverter output, and pulse width modulators and drivers for controlling the semiconductor switches in the inverter's power stage with control signals derived from the pulse width modulators. With the apparatus of the invention, fast control of the control voltage is achieved. Moreover, simpler voltage measuring elements may be used instead of current measuring elements. The apparatus of the invention comprises a speed regulator for producing a rotor current frequency and the frequencies of first reference voltages from the actual velocity value and the velocity reference value, a curve calculator for producing the amplitude of the reference voltages from the rotor current frequency and the frequency of the reference voltages, a three-phase oscillator for producing second reference voltages from the frequency and amplitude of the first reference voltages, and voltage regulators for producing control voltages for the pulse width modulators from additional reference voltages obtained from the second reference voltages and the actual value voltages obtained at the inverter output.

Abstract translation: 一种用于控制供应交流电的三相逆变器的装置。 电动机，逆变器具有用半导体开关实现的功率级，并且该装置包括用于产生速度参考值的电子控制单元和用于产生实际速度值的转速计发生器，用于测量交流电压的电压测量元件。 逆变器输出端的电压以及用于通过从脉冲宽度调制器得到的控制信号来控制逆变器功率级的半导体开关的脉宽调制器和驱动器。 利用本发明的装置，可以实现对控制电压的快速控制。 此外，可以使用更简单的电压测量元件来代替电流测量元件。 本发明的装置包括用于产生转子电流频率的转速调节器和来自实际速度值和速度参考值的第一参考电压的频率，用于产生来自转子电流频率的参考电压振幅的曲线计算器，以及 参考电压的频率，用于根据第一参考电压的频率和幅度产生第二参考电压的三相振荡器，以及用于根据从第二参考电压获得的附加参考电压产生脉宽调制器的控制电压的稳压器 和在逆变器输出端获得的实际值电压。

公开(公告)号：US4791346A

公开(公告)日：1988-12-13

申请号：US26029

申请日：1987-03-16

Applicant: Matti Kahkipuro

Inventor： Matti Kahkipuro

IPC: H02P27/06 ,  G05F7/00 ,  H02M20060101 ,  H02M7/539 ,  H02M7/5395 ,  H02P20060101 ,  H02P11/06 ,  H05F7/00 ,  H02P5/40

CPC classification number: G05F7/00 ,  H02M1/00 ,  H02M7/539 ,  H02M7/5395 ,  H02P1/00 ,  H02P11/06 ,  H02P27/06 ,  H05F7/00

Abstract: A method of forming the amplitude of the reference voltage of a three-phase inverter supplying a squirrel cage motor requires no current measuring elements. In this method, the amplitude is formed by finding in predetermined constant flux curves which represent the squirrel cage motor in question, and in which the motor rotor current frequency appears as parameter, a curve from which is obtained the amplitude of the motor stator voltage, i.e. of the inverter reference voltage, corresponding to the frequency of the motor's stator voltage, i.e. of the inverter reference voltage, so that the magnetic flux in the stator will be constant.

Abstract translation: 形成提供鼠笼式电动机的三相逆变器的参考电压幅度的方法不需要电流测量元件。 在这种方法中，通过找到表示所讨论的鼠笼式电动机的预定的恒定磁通曲线，并且其中电动机转子电流频率出现为参数，获得电动机定子电压的幅度的曲线，形成振幅， 即逆变器参考电压，对应于电机定子电压的频率，即变频器参考电压的频率，使定子中的磁通量恒定。

公开(公告)号：US4684856A

公开(公告)日：1987-08-04

申请号：US637870

申请日：1984-08-06

Applicant: Matti Kahkipuro

Inventor： Matti Kahkipuro

IPC: B66B1/30 ,  H02P7/06 ,  H02P7/293 ,  B66C13/30

CPC classification number: B66B1/30 ,  B66B1/285 ,  H02P7/293 ,  Y10S388/906 ,  Y10S388/919

Abstract: A method and device for elevator DC drive motor speed control stabilization system in which current data and speed data are used as feed-back information. The current regulator is approximated by an ideal integrator, and mathematical model thereby obtained is used for determining the amplification and time constants of the control system speed loop or loops, and these system parameters are compensated by providing short instruction accentuations for achieving practically delay-free compliance with instructions.

Abstract translation: 一种用于电梯直流驱动电机速度控制稳定系统的方法和装置，其中使用当前数据和速度数据作为反馈信息。 电流调节器由理想的积分器近似，由此获得的数学模型用于确定控制系统速度环路或环路的放大和时间常数，并且这些系统参数通过提供短指令重现来实现实际上无延迟 符合说明。

公开(公告)号：US4672277A

公开(公告)日：1987-06-09

申请号：US680314

申请日：1984-12-10

Applicant: Heimo Makinen ,  Matti Kahkipuro

Inventor： Heimo Makinen ,  Matti Kahkipuro

IPC: B66B1/32 ,  H02P3/14

CPC classification number: B66B1/32 ,  H02P3/14

Abstract: A method and apparatus for controlling a direct current motor of an elevator during emergency braking by conducting a current generated by the motor through a braking resistor are disclosed, in which a semiconductor switch connects the braking resistor across the motor during the emergency braking and a mains voltage to the motor is simultaneously interrupted.

Abstract translation: 公开了一种在紧急制动期间通过传导由电动机产生的电流通过制动电阻器来控制电梯的直流电动机的方法和装置，其中半导体开关在紧急制动期间将制动电阻器连接到电动机上并且在电源 电机的电压同时中断。