High-altitude photovoltaic power station grid fault simulation test system mobile detection equipment

Abstract

The invention relates to a power grid fault simulation test system movement detection device for a high-altitude photovoltaic power station. The movement detection device is of a vehicle-mounted container structure, is concentrated in three containers by adopting highly integrated design, the three containers are respectively a switch cabinet, a 35 kV electric reactor vehicle and a 10 kV electric reactor vehicle, each container is of a standard size, the transportation limitation requirements are met, and in addition, a centralized control vehicle carries a control system for totally controlling the whole device. The device can perform low voltage ride-through detection capability detection on the photovoltaic power station, can assist users in performing a wind power low voltage ride-through test, can finish switching of a wind power control system and a photovoltaic control system which are different, and is wide in coverage and high in adaptability.

Description

technical field [0001] The invention relates to the mobile detection of the power grid fault simulation system of a photovoltaic power station, in particular to a mobile detection device for a grid fault simulation test system of a high-altitude photovoltaic power station. Background technique [0002] In recent years, my country has vigorously supported the development of new energy technologies. With the rapid increase in the proportion of solar photovoltaic power generation installed capacity, the power system, like wind turbines, puts forward the requirements for the operation capacity of large and medium-sized photovoltaic power stations connected to the power grid when the power grid has a transient fault. The State Grid Corporation of China's "Technical Regulations on Connecting Photovoltaic Power Stations to the Grid" clearly requires large and medium-sized photovoltaic power stations to have low-voltage ride-through capabilities. [0003] With the continuous progress...

AI Technical Summary

Problems solved by technology

[0004] Due to its own characteristics, power electronic components will inevitably generate harmonics, which cannot actually reflect the real characteristics of the grid; in addition, grid faults will generate fault currents, and detection equipment based on power electronic equipment cannot truly simulate the grid failure. real state

[0005] At present, in the domestic grid fault simulation test for large-scale grid-connected photovoltaic power plants in high-altitude areas, the development of testing equipment designed and manufactured based on the principle of impedance voltage division is still in the introductory stage. Before this set of equipment, there is no related field. Research

Images