A mobile detection system for grid adaptability testing of high-altitude photovoltaic power stations

Abstract

The invention provides a mobile detection system for power grid adaptability testing for a high-altitude photovoltaic power station. The mobile detection system comprises a step-down transformer container connected with a power grid, a boosting transformer container connected with a tested generating unit of a photovoltaic power station, and a centralized control container. The step-down transformer container consists of a network side switch cabinet and a step-down transformer connected to the centralized control container. The boosting transformer container includes a machine-side switch cabinet and a boosting transformer connected to the centralized control container. The centralized control container includes a grid disturbance device and a centralized control operation device; the grid disturbance device is used for simulating the operating state of the power grid; and the centralized control operation device is used for adjusting the working state of the mobile detection system and putting forward technical requirements that need to be met by the system in a high-altitude environment. Compared with the prior art, the provided mobile detection system has the following beneficial effects: power grid adaptability testing optimization is realized; the detection process becomes reliable; and the high altitude requirement can be met.

Description

technical field [0001] The invention relates to a mobile detection system for grid adaptability testing, in particular to a mobile detection system for high-altitude photovoltaic power station grid adaptability testing. Background technique [0002] At present, photovoltaic power generation technology is developing rapidly in the world, and a large number of grid-connected photovoltaic power stations have been established. Changes in the operating status of the power grid do not affect the equipment safety of photovoltaic power plants. Power grid companies in various countries have put forward new strict requirements for photovoltaic grid-connected power generation systems, and have formulated grid-connected access standards and grid-connected testing standards for photovoltaic power plants. The grid-connection inspection of relevant institutions and the grid-connection qualifications can ensure the safe operation of photovoltaic power plants connected to the grid. Among the...

AI Technical Summary

Problems solved by technology

In addition, the accuracy and degree of automation of the adaptability test of photovoltaic power plants are not high, and the operating status information during the test cannot be fully monitored. The test process requires more human intervention, which increases the complexity of the test operation and brings personnel. risk of operational error

In addition, the control principle and structural defects of the detection system, excessive harmonics, and low control accuracy will cause a certain impact on the overall equipment or components of the detection system, which will lead to resonance in severe cases, which will have a negative impact on the entire photovoltaic system. The safety of the detection system, the equipment under test and even the power grid all have certain potential safety hazards

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