Abstract
This paper considers the improvement of the information-measuring complex for diagnostics and monitoring of traction power supply equipment under high-speed traffic, which has several features associated with a multilevel hierarchical structure, spatial distribution of objects, energy modes and functional relationships. The analysis of the transmission and conversion of measuring analogue information into a digital one, considering the maximum frequency of the primary signal spectrum components according to the sampling and quantization parameters to determine the time of the signal converted into a digital form is made. Functional dependencies and an algorithm for measuring information processing, considering the multilevel structure of traction power supply, which allow increasing the reliability and accuracy of diagnosing the main objects in high-speed traffic, are obtained.
Highlights
An integral part of the information-measuring complex (IMC) for diagnosing traction power supply objects in highspeed traffic is it’s mathematical, algorithmic and software
Considering the fact that the process of modern processing in the PIC for diagnosis and control requires a discrete and digital representation, it is necessary to provide an analogue switch, which should perform two functions: - provide switching of analogue measuring signals coming from primary transducers in independent parallel communication lines via independent parallel communication lines and to one line with the serial transmission of analogue signals via this line
- is the maximum frequency in the spectrum of the rapidly varying process, considering the Fourier decomposition
Summary
An integral part of the information-measuring complex (IMC) for diagnosing traction power supply objects in highspeed traffic is it’s mathematical, algorithmic and software. IIC diagnosis of traction power supply objects have several features that must be considered in the design, creation and operation of its mathematical, algorithmic and software [3,4,5], namely: (a) Various physical parameters that characterize the mode of operation of interconnected technological objects of substation power equipment and various elements of the contact network with complex structural and functional relationships under load; b) power supply objects have on the one hand a spatial distribution, and on the other hand, have technological, information and energy interaction of elements, considering the multi-level hierarchical structure, whose input and output parameters must be coordinated structurally, metrologically and with software with the superior devices; c) high speeds cause severe limitations on the duration of information processing in automatic control of motion processes with simultaneous execution of mathematical calculations, data processing programs at given time intervals; The existing system of processing the received measurement information, for example, for installations of the contact network, which is the most vulnerable object, has serious drawbacks, caused by a long interval between visits to their sites by personnel, which leads to a delay in the detection of damage in their work, to the low reliability of data and subjectivity of estimates, and contributes to the development of failure processes. IIC diagnosis of traction power supply objects have several features that must be considered in the design, creation and operation of its mathematical, algorithmic and software [3,4,5], namely: (a) Various physical parameters that characterize the mode of operation of interconnected technological objects of substation power equipment and various elements of the contact network with complex structural and functional relationships under load; b) power supply objects have on the one hand a spatial distribution, and on the other hand, have technological, information and energy interaction of elements, considering the multi-level hierarchical structure, whose input and output parameters must be coordinated structurally, metrologically and with software with the superior devices; c) high speeds cause severe limitations on the duration of information processing in automatic control of motion processes with simultaneous execution of mathematical calculations, data processing programs at given time intervals; The existing system of processing the received measurement information, for example, for installations of the contact network, which is the most vulnerable object, has serious drawbacks, caused by a long interval between visits to their sites by personnel, which leads to a delay in the detection of damage in their work, to the low reliability of data and subjectivity of estimates, and contributes to the development of failure processes. d) The ICP should be improved based on modern microprocessor devices; e) The KIC must be provided with high program stability in the process of diagnostics with the use of joint monitoring methods
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