Hybrid APFC Panels in Automotive Manufacture

In modern industrial processes, the number of nonlinear loads - known to be a major source of current harmonics - is constantly growing. At the same time, the number of reactive-power compensators operating in these networks is growing too. Though the compensators are not the source of harmonic distortions, they may cause high amplifications of harmonics by creating resonance conditions. This can cause malfunctions or even loss of equipment. 

Background

Nanjing Honghe Precision Forging Co., Ltd. is specialized in producing forged parts of important parts of automobile engines. It is manufacturing enterprises of metal power pendant forgings and common mechanical parts and other die forgings. The production process requires high power quality. In order to minimize the harm of harmonics to the system, it is necessary to control the harmonics of the power grid.

YT Power Quality Solution

Hybrid Active Power Factor Correction (HAPFC) combines the technological advantages of Active Harmonic Filtration (AHF) or Static VAR Generation (SVG) with conventional contactor or thyristor capacitor banks to provide step-less, real-time compensation.

The 200A AHF Active Harmonic Filter controlled 200kVAr Capacitors is used to harmonics mitigation and reactive power compensation. Two 100A AHF modules and 200kVAr Capacitors(Thyristor switched type) are installed in one cabinet.

YT's HAPFC units are high performance, customisable, modular and cost effective power quality solutions that provide an instantaneous, dynamic and effective response to identified power quality issues within electrical systems.

Technical Performance

On-site harmonic current is mainly 3rd, 5th, 7th, 11th and 13th harmonic. After Hybrid AHF and Capacitor banks, the THDi is reduced to below 5% and the power factor is increased up to 0.99.

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