Low Harmonic Drives; Help Reduce Harmonic Distortion and Provide Relatively Safe Power Output

 

Low Harmonic Drives

Harmonic drives, such as low harmonic drives, have been employed in a variety of applications ranging from low-cost consumer applications to sophisticated systems for military/aerospace use. Low harmonic drives are used to reduce harmonic distortion introduced in supply lines and to provide relatively safe power output for general and critical applications. Harmonic distortions are common current and voltage variations due to changes in frequencies within the electrical distribution systems.

Compared to a conventional drives, Low Harmonic Drives help reduce harmonic content by up to 97%. Low harmonic drives are used in many industrial sectors like aerospace, automotive, and dental applications. Low-powered and high-frequency compliant drives are designed to reduce power consumption while improving reliability and durability. There are many drive models in the market that can meet the needs of any industry. The most important advantage of using an AC drive is that it offers a large storage capacity.

Depending on the voltage range and the number of components in the system, the maximum usable capacity is determined. Whereas, depending on the input voltage and the number of components, the maximum attainable speed and torque is determined. Low harmonic drives use special filters with low frequencies that are easy to control without getting too fussy on the harmonics. A passive filter uses a combination of mechanical and electronic means to filter out the undesirable high-frequency components, which are then amplified by the amplifier.

Moreover, Low Harmonic Drives are compact and do not require additional wiring (thereby save significant space) and additional dedicated transformers, and are featured with low loss, robust performance, unity power factor, high overall efficiency. Thus, with the increasing demand for cost-effective products and the need to reduce energy loss, the demand for low harmonic drives is also increasing with a rapid pace. In the United States, utility companies are regulated at the state and municipal levels by public service commissions.

Moreover, the U.S. Department of Energy and Federal Energy Management Program (FEMP) publish notices and rules related to federal energy management.

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