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Harmonic reduction by pure sine wave inverters

Click: 160    Date: 08/23/2023 5::02::43 PM

Pure sine wave inverters, such as those produced by YUCOO, play a crucial role in reducing harmonics in the power supply. This is particularly important when powering sensitive electronic devices, such as medical equipment, which can be adversely affected by these harmonics. Here are some key aspects of harmonic reduction by pure sine wave inverters:

  1. Harmonic Suppression: Harmonics are higher frequencies that can cause noise and interfere with the operation of devices. A pure sine wave inverter helps reduce these harmonics. This is because a sine wave is the smoothest periodic wave, and it contains fewer harmonics compared to other waveforms like square or modified sine waves.

  2. Total Harmonic Distortion (THD): High-quality grid-tied inverters have a THD of less than 5%. THD is a measure of the sum of the powers of all the harmonic frequencies (except the fundamental frequency) to the power of the fundamental frequency. Lower THD means fewer harmonics, which translates to a purer sine wave.

  3. Harmonic Extraction: Pure sine wave inverters can produce a pure sine wave by generating a high-quality square wave and then filtering out the harmonics, leaving only the fundamental. This process, known as harmonic extraction, is crucial in reducing the harmonic content of the output.

  4. Harmonic Filtering: In addition to harmonic extraction, pure sine wave inverters use filters to block certain frequencies but allow other frequencies to pass to a load. This is another method that helps to reduce the harmonic content in the output wave, ensuring the delivery of a pure sine wave.

  5. SPWM Technology: YUCOO's pure sine wave inverters adopt SPWM (Sinusoidal Pulse Width Modulation) technology controlled by MCU (Microcontroller Unit) micro-processing. This technology ensures the production of a pure sine wave output, hence significantly reducing the harmonic content.

In conclusion, pure sine wave inverters from YUCOO effectively reduce harmonic content, ensuring a smooth and reliable power source. This is particularly beneficial for medical devices, which require a stable and high-quality power source for optimal operation.