KR100682512B1 - Maintaining Method of Operation and Control Circuit for Light Rail Vehicle - Google Patents

Abstract

The present invention relates to a method for maintaining a vehicle control circuit for a light rail train, and more specifically, the voltage of a filter capacitor (FC; filter capacitor) of an auxiliary power supply device applied through a current collector is detected and the voltage is a predetermined reference value. It relates to a method for maintaining a vehicle control for lightweight trains that maintains the starting state of the vehicle by using the value when the above charge.

As described above, the present invention provides a light rail system, comprising the steps of: (a) supplying a high voltage for starting a vehicle, which is applied from a wire, to a secondary power supply device through a current collector of the light rail vehicle; (b) detecting a voltage of a filter capacitor FC provided at a front end of the inverter unit constituting the auxiliary power supply unit to suppress the outflow of high frequency current and smoothing the input voltage of the inverter unit; Calculating an FC charging voltage which is a detected voltage value of the filter capacitor; (c) transmitting the calculated FC charge voltage data to a train control system (TCMS); And (d) comparing the FC charging voltage data transmitted by the train comprehensive control device (TCMS) with a predetermined reference value to a control unit of the auxiliary power supply device to continuously maintain a starting state of the vehicle when the reference value is higher than the reference value. Applying; characterized in that consisting of.

According to the present invention, in order to maintain the vehicle control system, a vehicle that maintains a current collecting state after completion of starting, regardless of the position of a reverse electric power, has an effect of maintaining an operating state of the vehicle if only a current collecting voltage is correctly input.

Current collector, auxiliary power supply, train control system

Description

Maintaining Method of Operation and Control Circuit for Light Rail Vehicle}

1 is a conceptual diagram for explaining a method for maintaining a vehicle control circuit for a light rail according to the present invention.

2 is a detailed circuit diagram of an auxiliary power supply device for a method of maintaining a vehicle control circuit for a light train according to the present invention;

3 is a main flow chart for explaining a method of maintaining a vehicle control circuit for a light train according to the present invention;

*** Explanation of symbols for main parts of drawing ***

100; Current collector 200; Auxiliary power supply

202; Filter reactor (FR) 204; Filter Capacitor (FC)

206; A voltage sensing unit 208; A / D converter

210; Inverter section 212; IGBT

230; Control unit 232; Mycom Card

234; Input / output card 300; Train total control device

The present invention relates to a method for maintaining a vehicle control circuit for a light rail train, and more specifically, the voltage of a filter capacitor (FC; filter capacitor) of an auxiliary power supply device applied through a current collector is detected and the voltage is a predetermined reference value. It relates to a method for maintaining a vehicle control for lightweight trains that maintains the starting state of the vehicle by using the value when the above charge.

In general, lightweight trains are electric railways that are lighter and lighter than conventional subways, and are a means of public transportation with medium transport capacity of subways and public buses.

Such a light rail train satisfies existing public transportation such as mass transportation and punctuality, and trains composed of multiple vehicles within a system in which the functions of the system are integrated / linked up to 30,000 people per hour / direction Unmanned driving system over 60km / h is already emerging as a new means of public transportation in Europe and Japan. The categories include small trains, monorails, orbital buses and maglevs.

In general, when electric railways, including light and heavy rail trains, are powered and powered on a live wire, the vehicle must be maintained before any unusual abnormalities or handling of the wire feed-related equipment of the engineer. Of course, the currently operated heavy rail (subway) system installs a separate relay (PANR RELAY) on one vehicle equipped with a pantograph (PANTO-GRAPH) that is responsible for feeding power. The vehicle's power supply does not go unpressurized due to the handling of electricity.

In particular, due to the configuration of the vehicle control system of the light rail train operated by unmanned operation, the position of the reverse electric motor is set to neutral (“N”: NEURAL) at the initial unmanned setting. Operation causes a lot of problems.

In addition, the current collector used in the third rail type side current collector has a problem in that manual operation control is not possible in the vehicle because it is in close contact using spring pressure rather than air rising or spring lowering in the upper current collector. .

Therefore, if the method used in the heavy train as it is applied to the light train as it will still have the problems as described above.

Accordingly, the present invention has been made to solve these problems, and an object of the present invention is to maintain a current collecting state after completion of starting, if only the current collecting voltage is correctly input, regardless of the position of the reverse electric power, for maintaining the vehicle control system. It is to provide a method for maintaining the operating state of the vehicle.

The present invention provides a light rail system, comprising: (a) supplying a high voltage for starting a vehicle, which is applied from a wire, to a secondary power supply device through a current collector of the light rail vehicle; (b) detecting a voltage of a filter capacitor FC provided at a front end of the inverter unit constituting the auxiliary power supply unit to suppress the outflow of high frequency current and smoothing the input voltage of the inverter unit; Calculating an FC charging voltage which is a detected voltage value of the filter capacitor; (c) transmitting the calculated FC charge voltage data to a train control system (TCMS); And (d) comparing the FC charging voltage data transmitted by the train comprehensive control device (TCMS) with a predetermined reference value to a control unit of the auxiliary power supply device to continuously maintain a starting state of the vehicle when the reference value is higher than the reference value. Applying; characterized in that consisting of.

Step (b) (b1) the voltage sensing unit detects the voltage of the filter capacitor (FC) which is provided in front of the inverter unit constituting the auxiliary power supply to suppress the outflow of high frequency current and smooth the input voltage of the inverter unit Making a step; (b2) converting the FC charging voltage in the form of an analog signal detected by the voltage sensing unit into a digital signal form in an A / D converter; (b3) calculating the data by converting the FC charging voltage converted into a digital signal form by the A / D conversion unit from the control unit of the static power inverter.

The inverter unit is characterized by consisting of a three-level inverter.

The light rail is characterized in that the rubber wheel light rail.

The control unit is composed of a microcomputer card for applying a control signal to the inverter unit consisting of a plurality of IBGT, and the input and output card in charge of the interface for the data communication between the microcomputer and the TCMS (TCMS). It features.

With reference to the accompanying drawings, a method for maintaining a vehicle control circuit for a light train according to the present invention will be understood by the embodiments described in detail below.

1 is a conceptual diagram for explaining a method for maintaining a vehicle control circuit for a light rail according to the present invention, FIG. 2 is a detailed circuit diagram of an auxiliary power supply device for a method for maintaining a vehicle control circuit for a light rail according to the present invention; 3 is a main flow chart for explaining a method of maintaining a vehicle control circuit for a light train according to the present invention.

According to Figure 1, the rubber wheel light rail vehicle according to the present invention is a current collector 100 is supplied with power for driving the vehicle through a current collector shoe from the wire, and the power is supplied from the current collector 100 Static Inverter (SIV) 200 for safely supplying power to air-conditioning and lighting devices and controllers, and comprehensive monitoring of commands for controlling all systems of light rail vehicles. Comprehensive train control system (TCMS) to control the (300).

At this time, each vehicle control power supply 400 is supplied with driving power from the train control system (TCMS) 300 and the various devices of the vehicle are operated.

In more detail, the train control system (TCMS) 300 is composed of a TC (Train Computer) and CC (Car Computer), and two TC and 8 CC are mounted on one rubber wheel lightweight train. It is the core equipment of electric vehicle as it is a vehicle control computer that executes various instructions and commands while driving and executes reverse braking control of light rail trains.

Meanwhile, the current collector 200 is a main shape product requiring analysis and design considering current collection and smooth mechanical operation in order to be applied to a third rail feed / current collection system for lightweight trains, and also has excellent dynamic performance. It must be structurally simple.

At this time, the power supply device 100 for supplying power to the light rail vehicle running is one of the main technologies for determining the stable speed to ensure a good contact between the feeder and the engaging shoe to maintain a stable power input and at the same time the contact surface Since it is difficult to minimize wear and to consider the economics of the system installation cost, the electric current is collected by the rectangular current collecting shoe in close contact with the wire, so the current collecting shoe is the starting point of power supply. It should be installed and supported on two rubber bushes, and it is configured to flexibly cope with the change by making it be a straight line between the vehicle and the line.

Therefore, the current collecting shoe (not shown) constituting the current collector 100 is manufactured to identify a wear limit, and the contacting shoe and the balance frame (not shown) are formed at the maximum when the contact surface is visible from the bottom. Insulation must be ensured.

Hereinafter, the auxiliary power supply according to the present invention with reference to Figure 2 will be described in detail.

Auxiliary power supply (SIV) 200 is a stationary auxiliary power supply (STATIC INVERTER) for supplying stable power necessary for the operation of each control device and lighting equipment, such as air-conditioning and lighting devices, broadcasting devices, etc. .

Therefore, the auxiliary power supply (SIV) 200 is a self-cooling, fully stationary device employing the DIRECT 3LEVEL IGBT INVERTER method, and can lead to low noise, high efficiency, high reliability, and simplified maintenance.

Referring to the circuit configuration of the auxiliary power supply (SIV) 200 as described above, the inverter unit 210, the control unit 230 for controlling and monitoring the inverter unit 210, and a display unit such as 7-segment ( Other peripheral circuitry, such as not shown).

The inverter unit 210 includes: a filter reactor (FR) 202 and a filter capacitor (FC; FILTER CAPACITOR) 204 for suppressing the outflow of high frequency current from the power input from the wire and smoothing the inverter input voltage. Is provided at the front of the inverter unit 210 to control the pulse width modulation (PWM) of each IGBT 212 constituting the inverter unit 210, the low-distortion three-phase AC excellent in response speed by high frequency switching Output the waveform.

At this time, the voltage applied to both ends of the filter capacitor (FC; FILTER CAPACITOR) (204) is sensed by the voltage sensing unit 206. Since the sensed voltage is analog data, it is impossible to process the data directly in the controller 230. Therefore, the voltage is converted into a digital signal through the A / D converter 208 which converts the digital signal into the controller 230 and inputs it to the controller 230. This is converted into a standardized data format through an internal operation of the controller 230.

On the other hand, the inverter unit 210 is composed of a three-level inverter, each phase and 1 UNIT, and composed of all three units in three phases to supply power to the load 340.

In addition, the Insulated Gate Bipolar Transistor (IGBT) 312 is a combination of high-voltage switching and bipolar transistors, which is a power semiconductor device having a high breakdown voltage and a high-throughput characteristic. The IGBT 312 arrange | positioned at each phase consists of 1700V / 400A.

On the other hand, the control unit 230 plays a pivotal role of the auxiliary power supply (SIV) 200, and performs the internal calculation processing (MICOM CARD; MCBR) 232 and the MICOM card (MICOM CARD; MCBR) It is composed of an input / output card (I / O CARD) 234 for outputting the contents calculated in step 232 to the train control system (TCMS) (300) to monitor the current state.

More specifically, since the MICOM CARD 232 forms the backbone of the auxiliary power supply device (SIV) 200, a 16BIT CPU is used and internal processing algorithms for various processing are configured by software. The input / output card (I / O CARD) 234 controls various functions through an interface (INTERFACE) with the external circuit of the MICOM CARD 232 to control the auxiliary power supply (SIV) 200. Input / output signal.

On the other hand, the CPU in the microcomputer card 232 has three phases of constant voltage control to output pulses to the gate of the IGBT 212 constituting the inverter unit 210 as well as internal operation / control. UVW phase) Creates a voltage command and generates the pulse pattern of the inverter.

The output of the pulse generated as described above has a function of controlling the inverter unit 210 that constantly controls the AC output voltage to AC380V against the input line voltage variation (400V to 900V) at high speed.

Meanwhile, the plurality of IGBTs 212 constituting the inverter unit 210 transmits a pulse signal using an optical signal using an optical fiber (not shown) between the gate of the IGBT 212 and the circuit of the control unit 230. It is designed to control precisely compared to the use of the existing electric signal, to improve the resistance to induction obstacles, and to design each application device to be light and small in size.

Hereinafter, a control flow of the vehicle control circuit according to the present invention will be described with reference to FIGS. 1 to 3.

The rubber wheel receives power from the wire through the current collecting shoe of the current collector 100 of the light rail vehicle.

In this way, the power supplied to the current collector 100 is supplied to the auxiliary power supply 200, which is input to the inverter unit 210 via the filter capacitor (FC) 204 of the auxiliary power supply 200. s110)

In this state, the microcomputer card 232 of the control unit 230 of the auxiliary power supply 200 monitors whether the voltage of the filter capacitor FC 204 is input, and at this time, the filter capacitor FC ( The voltage of 204 measures the FC charging voltage that is currently being charged through the voltage sensing unit 206, which is converted into a digital signal through the A / D converter 208, and the microcomputer card 232 of the controller 230. It is input to (s120).

In this case, the rubber wheel lightweight train detects the voltage of the filter capacitor (FC) 204 of the auxiliary power supply 230 to start charging as soon as a high voltage for vehicle startup is input, but the filter capacitor (FC) 204 The digital format data of the FC charging voltage of the train is transmitted to the TCMS 300 through the input / output card 234 of the control unit 230 (s130).

In this way, the data on the FC charging voltage detected and input by the microcomputer card 232 of the controller 230 is transmitted to the train control system (TCMS) 300, the train control system (TCMS) (300) Compares whether the input FC charging voltage is charged above a certain reference value, and when the reference value is higher than the reference value, displays the starting state of the vehicle on the display unit (not shown) of the control stand (not shown) by using the FC charging voltage value. The driver confirms or transmits the status to the central control room (s140).

On the other hand, the train control system (TCMS) 300 is a control signal to continuously maintain the starting state of the vehicle by using the FC charging voltage when the FC charging voltage input from the auxiliary power supply 200 is more than the reference value Is applied to the controller 230 to control the inverter unit 210 (s150).

As described above, embodiments of the present invention have been described in detail, but the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to one embodiment of the present invention.

As can be seen from the above description, according to the present invention, in order to maintain a vehicle control system, a vehicle that maintains a current collecting state after completion of start is irrespective of the position of a reverse electric power, if only a current collecting voltage is correctly inputted. It has the effect of keeping it stable.

Claims (5)

In the light rail system, (a) supplying a high voltage for starting the vehicle, which is applied from a wire, to a secondary power supply device through a current collector of the light rail vehicle; (b) detecting a voltage of a filter capacitor FC provided at a front end of the inverter unit constituting the auxiliary power supply unit to suppress the outflow of high frequency current and smoothing the input voltage of the inverter unit; Calculating an FC charging voltage which is a voltage value of the sensed filter capacitor; (c) transmitting the calculated FC charge voltage data to a train control system (TCMS); (d) comparing the transmitted FC charging voltage data with the set reference value in the train control system TCMS and applying a control signal to the control unit of the auxiliary power supply to continuously maintain the starting state of the vehicle when the reference value is equal to or greater than the reference value; Doing; Method of maintaining a vehicle control circuit for a light rail, characterized in that consisting of. The method of claim 1, wherein step (b) (b1) detecting a voltage of a filter capacitor (FC) provided at the front end of the inverter unit constituting the auxiliary power supply device to suppress the outflow of high frequency current and smooth the input voltage of the inverter unit; (b2) converting the FC charging voltage in the form of an analog signal detected by the voltage sensing unit into a digital signal form in an A / D converter; (b3) calculating data by converting the FC charging voltage converted into a digital signal form by the A / D conversion unit from a control unit of the static power inverter; Method of maintaining a vehicle control circuit for a light rail, characterized in that it further comprises. The method of claim 1, The inverter unit is a maintenance method of a vehicle control circuit for a light rail, characterized in that consisting of a three-level inverter. The method of claim 1, The light rail is a method of maintaining a vehicle control circuit for light rail, characterized in that the rubber wheel light rail. The method of claim 1, The control unit is composed of a microcomputer card for applying a control signal to the inverter unit consisting of a plurality of IBGT, and the input and output card in charge of the interface for the data communication between the microcomputer and the TCMS (TCMS). A method of maintaining a vehicle control circuit for a light train.

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