Авіаційно-космічна техніка та технологія (Aug 2019)
FEATURES OF CREATING ELECTRICAL SUPPLY SYSTEMS FOR GROUND-BASED COMPLEXES CONSIDERING OPERATIONAL LIMITATIONS AND OPERATING MODES
Abstract
The article analyses the power supply systems of space rocket complexes PSS SRC, which showed that currently the power consumption of the complexes has increased sufficiently compared to existing complexes, and ground-based technological equipment (GTE) has a completely different configuration, electrical and operational characteristics. As a result of the analysis, the supply ratings of the voltages and capacities of the complexes were identified, providing an external power system as an external power supply system and highlighted the main advantages and disadvantages, among which it can be noted that the structure of power supply systems does not meet modern requirements for the reliability of power supply to consumers. To create an optimized structures PSS ground complex (GC) were determined by the general requirements for the design, technical requirements, external factors. Among the main factors, we can distinguish the number of SRC zones (structure), technical complexes, their distance from each other, power consumption and consumer power category, voltage range, and SRC technology. The number of input boards, distribution points, the number of components of PSS, conversion and switching and protective equipment, UPS power, the number of assembly units, etc. directly depends on them. Based on the requirements and external factors for PSS GC, many features were identified that impose operational limitations. Each of the restrictions is characterized by quantitative and qualitative indicators. The important moment is the determination of the main modes of operation of the PSS, the technological processes at the SRC, the determination of consumers for the construction of cyclograms and the possibility of determining the calculated power through the utilization factor and the average load over the time interval. On the example of a cyclogram of work at the SRC Cyclone-4M technical complex, a graph of electrical loads is presented. The features presented make it possible to improve the process of creating a PSS, and accordingly, to increase the reliability and dependability of the operation of electrical supply systems for ground complexes.
Keywords
