Multi-purpose intelligent distribution network simulation system and simulation method

Abstract

The invention discloses a multi-purpose intelligent distribution network simulation system and a simulation method. The system comprises a power supply module, wherein the power supply module comprises an analog power grid, a photovoltaic power generation or wind power generation or energy storage unit; a switch device, wherein that switch device comprises a contact switch, a circuit break and a switch cabinet; an on-line monitoring module, wherein the on-line monitoring module comprises a fault simulator, a load element and a power monitoring device; The fault simulator comprises a ground fault simulator and an inter-phase short circuit fault simulator. The load element comprises a power cable, an overhead line, a motor, an inductor and a capacitor; The electric power monitoring device comprises an analog electric power monitoring device, a protection device and a power quality analysis device. The invention can directly provide the necessary criterion for the safety evaluation of theoperation of the power grid, and is suitable for the fault simulation, the protection verification and the self-healing reconstruction simulation of the intelligent distribution network.

Description

technical field [0001] The invention relates to the field of safety analysis and evaluation of distribution networks, in particular to a multipurpose intelligent distribution network simulation system and simulation method. Background technique [0002] Smart grid is a new type of power grid formed by highly integrating information technology, communication technology, computer technology and the original power transmission and distribution infrastructure. It is the development trend of the future power grid. , high-quality and other characteristics, the power distribution link has the closest relationship with users, and the vast majority of power system failures occur in the distribution network, which has the most direct impact on the overall performance of the power system and the quality of power supply for users. As the development direction of the future distribution network, the smart distribution network can accommodate a large number of renewable distributed power ...

AI Technical Summary

Problems solved by technology

[0003] With the continuous development and updating of science and technology, the demand of modern industry for power grid stability and power quality continues to expand, but due to the existence of problems such as grid aging and excessive energy consumption of power generation technology, the expansion and development of traditional power grids have been severely restricted, resulting in In recent years, large power outages have occurred frequently

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