What is the power factor correction? Power factor correction (PFC) is a technique used to improve the power factor of an electrical system. Power factor is a measure of how effectively electrical power is being used. It is defined as the ratio of real power (measured in kilowatts, kW) used to perform work to the apparent power (measured in kilovolt-amperes, kVA) drawn from the power source. Power ...
In an electrical power system, harmonics basically means the multiples of the current or voltage at the fundamental voltage frequency. Whenever you look at a waveform and it's not the usual sinewave shape you expect, that means there are harmonics involved. What causes Harmonics? Well, AC signals can be divided into linear and nonlinear. The nonlinear systems draw power in short, sudden pul...
what are the effects of harmonics on electrical systems In the intricate realm of electrical engineering, harmonics emerge as a subtle yet influential phenomenon that can significantly impact the efficiency, reliability, and safety of electrical systems. These unwanted frequencies, riding alongside the fundamental power waveform, can wreak havoc on various components and overall system perf...
What is the active power compensator? Active Power Compensator (APC) is an advanced power electronic device used to manage and optimize the flow of active power in electrical power systems. It helps to enhance power quality, improve voltage stability, and increase the overall efficiency of the power distribution network. APCs are particularly useful in applications where there are significant fluc...
Why Reactive power compensation is necessary on solar site? Backgaround With the development of the economy and the improvement of green energy awareness, more and more regions are using clean energy and installing a large number of solar power generation equipment. With the widespread use of photovoltaic power generation, many users have found that there are power adjustment fees, namely power fi...
kVAr and Amps in power quality Reactive Power (kVAR) Reactive power, measured in kilovolt-amperes reactive (kVAR), is the component of alternating current (AC) power that does not perform any actual work but is necessary for maintaining the voltage levels required for the active (real) power to do useful work. It is associated with the energy storage in inductive and capacitive elements of the pow...
Neutral current and Active harmonic filter Active Harmonic Filter (AHF) and Neutral Current Active Harmonic Filter (AHF) is used to improve power quality, by harmonics filtering, reactive power compensation and 3 phase balancing in power systems. Harmonics are voltage or current waveforms that are integer multiples of the fundamental frequency. They can cause various power quality issues, includin...
Introduction This blog compares harmonic mitigation techniques across various applications in real time. It examines different aspects of active and passive series and shunt filters, focusing on reducing harmonic loading in drive systems. It discusses the pros and cons of parallel and series approaches, as well as active and passive solutions, supplemented by practical results from several case st...