However, China’s crude steel production capacity is still subject to policy restrictions, and in 2008 it has climbed to an annual output of 660 million tons. At this time, the financial tsunami caused by the British subprime mortgage crisis has spread to the world. Under the global economic integration, China is also endangered. Foreign trade, investment requirements, real estate and other aspects have been blocked. Steel companies are among the manufacturing industries affected by this.
The power quality analysis and management system of power distribution system in metallurgical iron and steel industry mainly studies the elimination of reactive power compensation and harmonic management problems in power distribution system. The main products include active power filter, low-voltage reactive power compensation device, static var Generators, hybrid dynamic filter compensation devices, hybrid dynamic attenuation compensation devices, intelligent dynamic reactive power compensation devices, suitable for harmonic protectors and other electrical equipment in new construction, reconstruction, expansion, and technical reform projects in industrial, civil and public buildings Reactive power compensation, harmonic suppression and comprehensive management, etc., provide appropriate design solutions according to power quality problems of different industry types and load types, which can improve the quality of power supply and ensure the safe and economical operation of the power system.
Loads such as DC extruders and rectifiers produce a large amount of harmonic current during operation. If not controlled, it will seriously affect the safe operation of the power grid and sensitive loads in the power grid. In addition, the power factor of variable speed loads such as DC extrusion machines is still very low, and the reactive load fluctuates more seriously. The traditional low-voltage reactive power compensation (capacitor cabinet) cannot be put into normal operation, because it cannot resist and eliminate the impact of pulse current, resulting in serious waste of electromagnetic energy. Even if the capacitor cabinet can be put into operation, it is very dangerous to burn out the fuse and discharge the capacitor in a short time.
User Value of Reactive Power Compensation and Harmonic Control
Rectify harmonics, reduce the harmonic current introduced into the system software, and consider our company’s industry standards;
Reactive power dynamic compensation, power factor up to standard, avoiding fines from power supply companies;
After reactive power compensation, the power supply current of the system software is reduced, and the capacity utilization rate of the transformer is increased. Energy saving.
Problems you may encounter?
1. The rolling power factor of the direct current rolling mill is very low, the working cycle is short, the speed is fast, and the invalid fluctuation is large under the impact load
2. The DC rolling mill not only has a low power factor, but also generates high-order harmonics, which affects the normal operation of electrical equipment.
Our solution:
1. Select the single-tuned filter safety channel of the Hongyan passive filter device design scheme to filter out the pulse current of the system software and compensate the reactive load at the same time;
2. Adopt Hongyan dynamic safety compensation device to meet the requirements of impact load reactive power compensation and harmonic control. Reasonably configure the reactance rate according to the harmonic conditions of the system, compensate the reactive power of the system, and make the power factor reach above 0.95;
3. Use Hongyan active filter to control high-order harmonics, and use dynamic safety compensation device to compensate system reactive power, and the harmonic reactive power will reach the standard after being put into operation;
4. Use Hongyan TBB dynamic ineffective generation device to supply ineffective power to each phase of the system, and manage each harmonic of the system.
Post time: Apr-13-2023