High-speed dsp control power grid intelligent monitoring voltage regulation compensation and protection control system

Abstract

The invention provides an intelligent monitoring voltage regulating compensation and protection control system for a high-speed DSP control power grid. A transformer isolation switch and a power griddetection device are connected with a transformer; a load isolating switch and a load detecting device are used for being connected with a load; the power grid detection device and the load detectingdevice transmit voltage and current signals of a plurality of paths as power grid detection signal data to a signal acquisition and analysis device; the signal acquisition and analysis device analyzesand calculates power grid signal data and parameters about power grid harmonics and reactive harmful power and transmits the power grid signal data and the parameters into a master controller; the master controller calculates a control instruction and power grid and load operation state signal of a power grid voltage regulating compensation controller and a power grid system protection controller; the power grid voltage regulating compensation controller and the power grid system protection controller respectively control and drive a power grid voltage regulating compensation device, the transformer isolation switch and the load isolating switch to execute voltage regulation and protecting operation for a power grid. The intelligent monitoring voltage regulating compensation and protection control system provided by the invention realizes monitoring voltage regulating compensation and protection control of a smart power grid.

Description

technical field [0001] The invention relates to the technical field of power grid intelligent monitoring and system protection control, in particular to a high-speed DSP-controlled power grid intelligent monitoring voltage regulation compensation and protection control system. Background technique [0002] With the rapid development of my country's steel and aluminum metal smelting industry and high-speed tram railway, China's steel, aluminum and other metal production has grown to more than 50% of the world's output, and the development speed of high-speed tram railway is the first in the world. Due to the electric arc furnace or high-frequency furnace smelting system or electrolytic smelting system used in the metal smelting system, the particularity of frequent start-up and phase-modulation and variable-speed operation of railway trams generates a large number of high-order harmonics and reactive harmful power, causing great damage to the power grid. The impact and interf...

AI Technical Summary

Problems solved by technology

Only related hardware faults or software logic defects can be found by consulting software logic, replacing faulty hardware, and measuring analog and switching values. In these DC projects, CAN bus faults are usually not easy to determine the cause of the fault, and it is impossible to find CAN bus network overload or Defects such as load mutation

[0006] 3. The patent number is 201711128945, and the name is "A Single-pole Fault Isolation System for True Bipolar Flexible DC Transmission Project", which includes the sending-end converter station, the receiving-end converter station and its control and protection system. It is characterized in that : It includes a fault isolation device, and the fault isolation device includes a current transformer and a The neutral bus area, another current transformer on another neutral bus drawn from the MMC lower bridge arm of pole II in the sending-end converter station and the receiving-end converter station, and the pole II neutral bus area, and The neutral line differential protection device is installed on the metal return line connected to the two neutral bus outlets; but this patent cannot detect, detect and protect the high-voltage power grid and load

[0008] At present, there is no description or report of similar technology to the present invention, and no similar information has been collected at home and abroad

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