1) Dynamic compensation reactive power, reduce line loss, energy saving and consumption
Large loads in the distribution system, such as asynchronous motors, induction furnaces and large capacity rectifier equipment, electricity.The power locomotive, etc., can be manifested as inductive in operation, which needs to consume a lot of reactive power and increase the power supply line. The loss of electrical energy on the road reduces the voltage quality, and the reactive current also reduces the power generation, transmission, and supply system
The effective utilization rate of the standby; For power users, low power factor will increase the cost of electricity and increase the variation. Pressure loss, increase production costs. SVG dynamic reactive power generator can follow the change of load reactive power to realize dynamic compensation of reactive power, minimize line loss, and fully improve the utilization rate of power generation, transmission and supply equipment.
2) Dynamic filter harmonics, improve power quality, energy saving and consumption reduction
The nonlinear load often injects a large amount of harmonics into the public power network while generating the impact reactive power.The SVG dynamic reactive power generator adopts the active filter technology using IGBT as a power semiconductor device.The technique has the advantages of fast response, high reliability, dynamic tracking and filtering of harmonics, and dynamic reactive power generation of SVG. The device has outstanding advantages such as filtering performance is not affected by changes in system parameters, no danger of harmonic amplification, etc. It is the preferred energy saving solution for dynamic reactive power compensation and harmonic control.
3) Transmission system stability control to improve line transmission capacity
SVG dynamic reactive power generator can be installed in long distance transmission lines not only under normal conditions Compensates the reactive power of the line, and can provide timely and fast reactive power adjustment in case of system failure. Section, damping coefficient oscillation, improve the stability of the transmission system, so as to effectively improve the line transmission capacity.
4) Maintain the load terminal voltage and strengthen the system voltage stability
For the load center, because the load capacity is large, and there is no large reactive power supply support, it is easy to cause. Low voltage or even voltage collapse accident. SVG dynamic reactive power generator has fast regulation none. The function of power can effectively maintain the load side voltage and improve the voltage stability of the power supply system.
5) Voltage fluctuation and flicker suppression
Nonlinear loads, such as electric arc furnaces, rolling mills, electrified railways, etc., are caused by rapid changes in load voltage. Fluctuations and flickers, can not meet the user’s requirements for voltage quality, will lead to poor equipment operating performance, Accidents such as overcurrent, overheating, misoperation of protective devices and equipment burning occur, and equipment performance and production. Both efficiency and product quality will suffer. Voltage fluctuation and flicker are important to safety production and human health. Extremely unfavorable. The full response speed of SVG dynamic reactive power generators of less than 10ms makes it particularly suitable for the suppression of voltage fluctuations and flickers, and the International Power Grid (CRGRE) also recommends it as the preferred solution for the suppression of voltage fluctuations and flickers caused by rapidly fluctuating loads such as electric arc furnaces.
6) Compensation for three-phase unbalance
Three-phase voltage imbalance causes great harm to the user’s electrical equipment and the power transmission and transformation equipment of the grid. It causes the neutral point to form a high voltage to the ground, which makes the electronic equipment accumulate a lot of static electricity and cause fatal damage; The negative sequence current will increase the transformer loss, cause the transformer heating, and reduce the effective output capacity.
Post time: Jul-17-2023