JPS59201605A - Controller for motor driven vehicle applied linear motor - Google Patents

Abstract

PURPOSE:To prevent an excess current when a linear motor passes a zone in which a reaction plate is not mounted, in an energized state by monitoring the presence or absence of the plate at the position before the motor. CONSTITUTION:Linear motors 5, 6 are respectively mounted on trucks 2, 3, and detectors 7-10 which detect a reaction plate 11 are mounted. An inverter 16 is controlled by a gate unit 17, a DC current is converted to variable voltage and variable frequency 3-phase AC current to a linear induction motor 5. When a vehicle 1 is driven by the drive force of the motor and a signal of the detector 7 is eliminated from the result that the detector 7 is moved from a point A to a point B, the gate of an inverter 16 is reduced by the operation of the unit 17. As a result, even if the motor 5 reaches the point B, excess current is not flowed to the motor 5.

Description

[Detailed description of the invention] [Utilization of the invention! IIf] The present invention relates to an electric vehicle using a linear motor, and is particularly suitable for a linear motor in which a secondary reaction plate is not installed at the rail branch portion. Regarding IJ control device.

[Background of the invention]

Linear induction motors with on-vehicle primary and ground secondary systems have been put to practical use in the past, such as when replacing '4TJs in national yards, but there have been no examples of them running on rail branch valves. The rail branch point is located on the Ita 'Ir'i, and there is a 11 east {L} that is important to install a reaction plate in the rail. Therefore, in linear motor applied surface vehicles, it is also possible to run on a part without a rear kungyong plate.
It is necessary to keep it.

In this part where there is no PuI/Ito, ] Sudoryoku is i! : Not only r, but also linear motor and other VC
,+f'14 dog. A-style? ll. However, it had the disadvantage of damaging the equipment.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an application for a linear motor that can run on a track having a toy section where a branching point is not installed, without causing overcurrent or other abnormal phenomena.

[Summary of the Invention] The main point of the present invention is that in order to prevent excessive i and jliu when the linear motor passes through a section where no reaction plate is installed, the linear motor and the reaction plate are Monitor the presence/absence and quickly turn on the power: 1! I am in charge of you.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be explained with reference to FIGS. 1 and 2.

FIG. 1 shows the layout of an electric vehicle equipped with the present invention.

A vehicle body 1 on which a linear motor control device 4 is mounted is mounted on bogies 2 and 3.

Dolly 2, 3. Linear motors 5 and 6 are attached to (respectively), and ejectors 7 to 10 for detecting the reaction plate 11 are also attached.

? Figure iN2 shows the electrical circuit of the K Jib car, which is based on the present invention.

The DC 1α current taken in from 12 is supplied to the inverter 16 via the breaker 13, the filter reactor 14, and the filter capacitor 15.

The invercooler 16 is controlled by a gate device 17,
Converts direct current into three-phase alternating current with variable voltage and variable wave number,
It is supplied to the linear inductor motor 5.

The gate device includes a reaction plate z1*1. installed in front of the linear motor in the direction of movement. Detection 2 to 7
The gate of the inverter 16 is narrowed down by the signal of
Apply gate stop II;! 'Have the ability.

Now, vehicle 1 is running due to the driving force of the IJ near motor,
1st order detector 7 moves from point A in Fig. 2 to point 13 and detector 7
When the signal disappears, due to the action of gate device 17,
The gate of inverter 16 is throttled.

As a result, even if the linear motor 5 reaches point B, there is no chance that an excessive current will flow into the linear motor 5.

Even if the vehicle 1 continues to travel and the detector 7 reaches the 0 point, the gate device continues to memorize the situation at point B, and the gate device continues to memorize the situation at point B.

Bark 16's gate remains closed.

Furthermore, when the vehicle travels and the detector 8 reaches point B, the gate device n17 uses the signal to clear the memory ilj'.
Starting from Iiii, the signal that the detector 8 reaches the 0 point is received by I (then 11 is fully cleared to 1. Since it has reached 0 point, it starts normal operation.

What? , 117. Naturally, when the direction of movement of both 1 is opposite, the roles of 7 and 8 are opposite, so after Tsuga, the gate device 17 is At this point, the output signals of ejecta 7 and 8 are cut off.

According to this example, even if there is a section where the rear kunyong plate is not provided, such as the branch point of the llilL line, the train can pass through it without any abnormality.

〔Effect of the invention〕

According to the present invention, it is possible to avoid the problem of the 11 pivot force becoming 0 from that point until the last car passes the turning point when a train with a set of gears approaches a turning point. Driving obstacles can be removed.

[Brief explanation of drawings]

FIG. 1 is a side view of an electric vehicle using a beam near motor, and FIG. 2 is a control system diagram of an embodiment of the present invention.

Claims (1)

[Claims] 1. In the linear motor-applied electric heater, there is a means for constantly monitoring the presence of the serial plate by means of a reaction plate {eating device} installed on the front side in the direction of movement of the linear motor, and a means for constantly monitoring the presence of the serial plate. If possible, there is a means to immediately reduce or reduce the power supply of the linear motor, and the direction of movement of the linear motor is +1'! I'+1 blind reaction plate installed in 11 {with means for fully confirming the presence of the reaction plate and restoring the cut-off circuit using the food dispenser w'r:! (Control system 11"7 for linear motor application 1a moving vehicle.