RTDS simulation resource distribution method and system based on multi-backpack problem analysis

Abstract

The invention discloses an RTDS simulation resource distribution method and system based on multi-backpack problem analysis. The method comprises the following steps of dividing a power grid into a plurality of sub-networks at a cross section meeting decoupling conditions, calculating the total amount of simulation storage unit resources required by power grid modeling, wherein each RACK can storea resource calculation result, calculating the number of RACK required by the primary power grid model, abstracting the divided sub-networks as to-be-loaded objects, abstracting each RACK as a backpack, and establishing a multi-backpack problem mathematical model for RTDS simulation resource distribution, and solving a multi-backpack dynamic programming algorithm for RTDS simulation resource distribution, and carrying out RTDS simulation resource distribution. According to the method, the modeling designers can be effectively assisted to distribute the RTDS simulation resources through quantitative analysis, and the rationality of the RACK resource distribution and the stability of the simulation operation are improved.

Description

technical field [0001] The invention belongs to the technical field of real-time digital simulation of power systems. More precisely, the invention relates to an RTDS simulation resource allocation method based on multi-knapsack problem analysis and a system thereof. Background technique [0002] With the rapid development of UHV DC, my country's power grid has entered the stage of AC-DC hybrid transmission and regional grid interconnection, which has played an important role in realizing the overall planning and optimal allocation of resources on a large scale. But at the same time, during the transition period of UHV power grid construction, the characteristics of the power grid's "strong direct current and weak AC" are obvious, and the safe operation of the system faces greater risks. Under the new pattern of multi-DC intensive feed-in, the degree of dependence on receiving external power continues to increase. With economic development entering the new normal, under the ...

AI Technical Summary

Problems solved by technology

[0004] However, building a large power grid model requires a large amount of RTDS simulation resources, especially under the condition of a limited number of RTDS, how to plan and utilize RTDS simulation resources to ensure the orderly development of various experiments is a problem that modelers need to solve

[0005] Regarding this problem, there is still a lack of methods to achieve effective planning of RTDS simulation resources through quantitative analysis. Usually, modelers can only allocate the use of RTDS simulation resources by a power grid model once based on past experience. Storage and real-time operation capabilities of the RTDS emulator) are not balanced, and even individual RACK usage overflows, etc.

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