外文翻譯---一個(gè)逆變器在電梯門(mén)中控制兩個(gè)永磁直線電動(dòng)機(jī)

1、外文翻譯（原文）- 1 -Control of two PM linear motors with asingle inverter: application to elevator doorsAbstractThis work considers the control of two PM synchronous motors using a single inverter. The standard approach to the

2、control of a PM synchronous motor is to use a single inverter which provides independent control of the direct and quadrature voltages (and therefore of the direct and quadrature currents) of the motor. Here, an approach

3、 is presented that provides independent torque control of two PM synchronous motors using a single inverter. In this approach, the quadrature current of each motor is controlled while it is shown that the direct current

4、is uncontrollable. Both parallel and series connections of the two motors to the single inverter are considered and it is shown how the singularity of the controller can be avoided in each case. The methodology is applie

5、d to the control of elevator doors.1. IntroductionComposed by the order of relay control system is a realization of the first elevator control method. However, to enter the nineties, with the development of science and t

6、echnology and the widespread application of computer technology, the safety of elevators, reliability of the increasingly high demand on the relay control weaknesses are becoming evident. Elevator control system relays t

7、he failure rate high, greatly reduces the reliability and safety of elevators, and escalators stopped often to take with the staff about the inconvenience and fear. And the event rather than taking the lift or squat at t

8、he end of the lift will not only cause damage to mechanical components, but also personal accident may occur. Programmable Logic Controller (PLC) is the first order logic control in accordance with the needs of developed

9、 specifically for industrial environment applications to operate the electronic digital computing device. Given its advantages, 外文翻譯（原文）- 3 -for field weakening. Here, an approach is presented that provides independent t

10、orque control of two PM synchronous motors using a single inverter. In this approach, the quadrature current of each motor is controlled while the direct current is uncontrollable. Such an approach was also considered in

11、 the work [6].This problem was motivated by the control of elevator doors. A conventional elevator door system has the two doors mechanically connected to a single cable which forces the two doors to open and close toget

12、her due to the mechanical coupling. Using position sensor feedback from the wall, the position of the doors is then controlled by a motor/inverter system that pushes/pulls on the cable. The objective here was to consider

13、 a different system where the cable system is eliminated and each of the two doors of the elevator are actuated using a linear synchronous motor. The two motors must reliably open and close the two doors of the elevator

14、while maintaining a stiffness in the differential direction of motion on the order of 100,000N/m to have the “feel” of the conventional cable driven doors. For example, in a conventional elevator door system if one door

15、is held, the other door must stop at the same position since the doors are attached to a single cable whose stiffness is 100,000N/m. This same behavior is still desired in the new system and requires one being able to in

16、dependently control each of the doors (i.e., their linear motor actuators) to maintain the stiffness. However, in order to reduce costs, the question considered here is that of being able to independently control the two

17、 linear motors using a single inverter.The outline of the rest of the paper is as follows: Section 2 briefly describes the modeling of PM synchronous motors, Section 3 develops a linear PM motor model from the rotary mod

18、el, presents the door model and summarizes the standard PM synchronous motor control algorithm, Section 4 considers the control of two linear PM motors using a single inverter for both the parallel and series connection.