The article discusses the issues of modernization of the automated system for filling petroleum products (ASN). The complexity of maintenance of the automated control system due to the lack of up-to-date documentation and updated software, as well as periodic failures and high cost of spare parts became the main reasons for the implementation of modernization. Automatic control systems based on the law of proportional-integral-differential regulation have been developed: using a shut-off control valve with a positional actuator or a frequency converter to control the ACN. Mathematical models of the automatic control system have been developed in the MATLAB program using the Simulink library. An experimental model of a pumping station was assembled in laboratory conditions, and simulation modeling of the operation of an automated control system for a discharge and filling station was carried out. According to the results of experimental studies on the direct characteristics of assessing the quality of the transient process, the graph of a circuit with a frequency converter demonstrates the best results.

Keywords: automated pumping station, petroleum products, mathematical models, PID controller

The article lists the main sources (objects and processes) that generate costs - a total of 19 possible sources, grouped into four groups. To monitor and take measures to reduce costs, it is advisable to build a formalized model and on its basis a software system that would allow to estimate all costs. This article is devoted to the construction of this model. An article on the estimation of total costs for all possible factors leading to losses and costs in warehouse freight turnover is not available in the literature.

Keywords: warehouses, warehouse, transport logistics, costs, functional scheme