SU1575085A1 - Apparatus for controlling power of locomotive diesel-generator set - Google Patents

Abstract

This invention relates to the testing of power plants. The aim of the invention is to automate the process of controlling the power of a diesel generator set of a locomotive during a rheostatic test. This is achieved by automatically measuring the voltage parameters and the load current at the generator output, controlling the load power range and changing the load current in a given range. The use of the device improves the measurement accuracy of the monitored parameters. 1 il.

Description

The invention relates to testing power plants, in particular to devices for diagnosing and monitoring parameters of diesel generators, and can be used in the process of rheostatic testing of hot water, s

The purpose of the invention is to automate the process of monitoring the parameters of a diesel generator set of a locomotive during rheostatic tests.

The drawing shows a diagram of the device.

The device contains current and voltage meters 1 and 2, respectively, the inputs of which are connected to the control object, the diesel generator, the first discriminator 3 and the second discriminator 4, the multiplication unit 5, the inputs of which are connected to the outputs of the meters 1 and 2, the output of the current meter 1 connected to the input of the second discriminator 4, and its output is connected to the control object through the unit 6 for controlling the load resistor. Parallel to the inputs of meters i and 2, the inputs of analog switch 7 are connected, the control of the output is sometime directly, and the information is connected via an analog-to-digital converter (ADC) 8 to the first and second inputs of the switch 9 codes, the third input of which is connected to the output of unit 5 multiplying, the input of the display unit 10 and the input of the first discriminator 3, the output of the discriminator 3 is connected to the control input of the transcriptor 11, the information input of which is connected to the output of the switch 9 of codes, and the information and control inputs transcriptor 1 1 displayed on the recorder 12 parameters of the diesel generator 13.

The device works as follows.

When connecting a diesel generator set (LSU} locomotive to a load resistor (control object)

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setting on the first Discriminator 3 (control input not shown) of the allowable power range corresponding to the mode to be monitored, and on the second rum discriminator 4 (control not shown) of the range of current variation of the load, narrow and switching on of the load resistor control unit 6 automatically changes - Generator load current from minimum to maximum values. At this time, meters 2 and 1 measure the voltage at the output of the diesel generator set and the load current of the generator, convert the analog information to digital, and transfer it to the inputs of the unit. 5 multiplying the result is in digital form on a display unit 10, peredaet- with the third input of the switch 9 codes and the input of the first discriminator 3, where 20 is compared with a definable setpoint. If the power value is in the start field, then the control input of the transcriptor 11 receives a signal that is converted, and from an informational output, it goes to the electromagnets of the recorder 12, which sets the black ribbon for printing, if the power value is outside the tolerance field The red tape is then installed.

At the same time, the signal from the measured I and 2 is fed to the inputs of the analog switch 7, which provides alternate connection of signals for example,. and the load current of the diesel generator set to the input of the ADC 8, the information from the output of which is fed to the second input of the switch 9, the sequence of connection of the switch 9 codes to the multiplication unit 5 or the ADC 8 Q is carried out by signals Controls that come from one of the outputs of the analog switch 7 to the first switch input 9 codes. The information from the output of the code switch 9 goes to the information input of the transcriptor 11, where it is converted from code 8-4-2-1 to the decimal code and VYDED SY to the control input of the recorder 12, which prints the information in eg.

The limit value of the load current is controlled by the discriminator 4, for this purpose digital information from the current meter 1.5 output is supplied to its input. When the limit value of the load current of the discriminator 4 is reached, it generates a pulse that is applied to the input of the load resistor control unit b, which stops the automatic measurement of the load current . The control process of this mode ends.

DGU power ranges and load current change are set by test according to the test program,

Invention Formula

A device for monitoring the power of a diesel generator set of a locomotive, containing current and voltage meters, inputs connected to the control object, and a load resistor with an actuator for driving the rheostat blades and a control unit, as well as a display unit other than that to automate the process monitoring the parameters of the diesel generator set during rheostat tests, the device additionally includes the first and second discriminators, a multiplication unit, and an analog switch with. two inputs and a di-outputs, an analog-to-digital converter, a switch with three inputs, a transcriptor with control and information inputs and two outputs, a recorder with control and information inputs, with the outputs of current and voltage meters connected to the inputs the multiplication, whose spin is connected to the input of the display unit, the third input of the switch and the input of the first discriminator, the output of the latter is connected to the control input of the transcriptor, whose information input is connected to the output of the switch The codes and the transcriptor outputs are connected to the control and information input of the recorder, the output of the current meter through the second discriminator is connected to the control unit of the actuator actuator of the rheostat blades, the first and second inputs of the analog switch are connected in parallel to the inputs of the current and voltage meters the switch is connected to the first input of the code switch, the second input of which is connected via the analog-to-digital converter to the second output of the analog switch,

Claims (1)

Claim A device for controlling the power of a locomotive’s diesel generator set, containing current and voltage meters connected to the control object with inputs and a load resistor with an actuator for driving the rheostat knives and a control unit, as well as an indication unit, characterized in that, in order to automate the control process parameters of the diesel generator set during rheostatic tests, the first and second discriminators, a multiplication unit, an analog switch with two inputs are additionally introduced into the device two outputs, an analog-to-digital converter, a code switch with three inputs, a transcriptor with control and information inputs and two outputs, a recorder with control and information inputs, and the outputs of current and voltage meters are connected to the inputs of the multiplication unit, the output of which is connected to the input of the display unit , the third input of the switch and the input of the first discriminator, the output of the latter is connected to the control input of the transcriptor, the information input of which is connected to the output of the code switch, and the outputs of the trans the scripts are connected to the control and information input of the recorder, the current meter output through a second discriminator is connected to the control unit of the actuator for driving the rheostat knives, the first and second inputs of the analog switch are connected in parallel to the inputs of the current and voltage meters, the first output of the analog switch is connected to the first input of the code switch whose second input, through an analog-to-digital converter, is connected to the second output of the analog switch,