Analysis on the design scheme of harmonic controller using DSP

With its powerful capabilities in the acquisition, analysis, processing, control, and feedback of entity attribute information (location, status, behavior, characteristics, etc.), the Internet of Things will definitely promote the development of smart grids. Typical applications of smart grid based on the Internet of Things are as follows.

Power grid intelligent maintenance system

The function of the system is mainly to intelligently monitor the power grid equipment and maintain the power grid. The inspection of power transmission, substation, and distribution equipment in my country's power grids mainly relies on inspectors to conduct manual inspections on a regular basis. Due to the constraints of many objective factors such as climatic conditions and environmental factors, the inspection quality and in-place rate cannot be guaranteed.

The intelligent inspection system for power transmission, transformation, and distribution equipment of the power grid based on sensor network can identify tag auxiliary equipment positioning, monitor the operating environment of the equipment, grasp the operating status information, realize the supervision of personnel in place, and guide the inspection personnel to perform standardized and standardized work Processes, auxiliary state maintenance and standardized operations, etc., to effectively solve the quality supervision problems in the patrol inspection of unattended substation equipment.

For power equipment, real-time monitoring and early warning diagnosis of environmental status information, mechanical status information, and operating status information of the equipment can be carried out through the Internet of Things, and fault prediction, equipment maintenance and other work can be done in advance, so as to improve equipment maintenance, automatic diagnosis and safety The level of operation. Using the Internet of Things technology can improve the perception ability of primary equipment, and combine secondary equipment well to realize functions such as joint processing, data transmission, and comprehensive judgment, and improve the technical level and intelligence of the power grid.

The system must have the following important functions:

Video Surveillance. Check the status of the equipment, if the equipment is damaged by man-made or natural factors, it can be found in time.

Sensor network. Being able to perceive the operating environment of power grid equipment in a timely manner is conducive to taking corresponding measures to reduce the harm of harsh environments to power grid equipment.

Satellite positioning function. Install smart tags on related equipment. When the sensor detects that the equipment is malfunctioning, it can accurately locate the location of the malfunctioning equipment and repair it in time.