The modern centralized dispatch control system represents a multilevel, geographically distributed, and reserved software and hardware complex. This complex coexists with the process of updating regulatory documentation, increasing requirements for systems, and intensification of competition among developers. The development and implementation of the complex are accompanied by the analysis of calculation procedures, development of object models, calculation examples, software and hardware stands. High standards for the reliability and accuracy of calculations of the dispatch control system lead to the development of a method for input data validation and calculation algorithms verification. The article proposes a method for calculation development that represents an iteration procedure: the search for a calculated example in open sources and its implementation (repetition of the sequence); the search for alternative options for calculating the parameters of the example (branching); verifying the calculation results in the modeling program and identifying the reasons for the discrepancy (analysis); correction of input data and bringing to the updated regulatory framework (verification). The paper presents the results of the application of the method: refined calculation examples, proposals for updating regulatory documentation, a new algorithm for solving the problem of determining the possible or actual hydrate formation in a gas pipeline. The results of the method were used during the development of the software dispatching complex Potok-DU, the implementation phase begins with the Power of Siberia pipeline. In March 2017, Gazprom avtomatizatsiya PJSC successfully tested the Potok-DU complex at the production facilities of Gazprom transgaz Tomsk LLC in the Khabarovsk Linear Production Department of the Main Gas Pipelines and the Far Eastern Regional Dispatch Center. The scientific side of the method got approval at the 7th International Scientific and Technical Conference “Gas Transmission Systems: Present and Future” (GTS-2017) on October 26–27, 2017.
Keywords: ALGORITHM, CALCULATION EXAMPLE, HYDRATE, DEW POINT, SOFTWARE DISPATCH COMPLEX.