Power quality monitoring仪Voltage fluctuations and flickers:

The fluctuation and flicker of voltage are mainly caused by impulsive loads. Setting aside the performance of equipment, improving the power supply capacity of the power grid and installing compensation equipment can be used to control voltage fluctuation and flicker.Measures to improve power supply capacity:Improve the power supply voltage level;Install dedicated lines for special large load groups;Adopting decentralized power generation technology near sensitive loads.Install compensation equipment:

1Static reactive power compensatorSVC。One of the simpler methods is to use thyristors to switch capacitors. A contactless power electronic switch composed of thyristors can quickly switch capacitor banks to achieve the regulation of capacitive reactive power. The key technology is the instantaneous disconnection when the capacitor current crosses zero.

2Static reactive power generatorSVG。The static reactive power generator has the advantages of continuous regulation, large adjustment range, fast response speed, high control accuracy, and reliable operation, making it a currently high-performance dynamic reactive power compensation device.SVGIt refers to a device that uses a self commutating power electronic bridge rectifier for dynamic reactive power compensation, with the ability to self rectify charging,SVGIn fact, the self commutating bridge circuit is connected in parallel to the power grid through reactors, forming an inverter that can generate leading or lagging phase currents.Power system power quality monitoring instrumentManufacturer IntroductionTCR型与SVCWhat sets the device apart isSVGThe voltage regulation range is not affected by the reference voltage of the power grid, and the effect speed is fast.