Development history of IGBTThe Insulated Gate Bipolar Transistor (IGBT) has revolutionized power electronics since its inception, marking a pivotal milestone in the development of high-efficiency energy conversion systems. Born in the late 1970s and early 1980s, the IGBT emerged as a hybrid semiconductor device that combined the advantages of Bipolar Junction Transistors (BJTs) and Metal-Oxide-Sem...
In today's rapidly advancing world, the reliability and quality of power have become more critical than ever. The interconnected systems and sensitive electronic devices of the modern digital economy require an almost perfect power supply. However, power quality (PQ) issues such as voltage sags, harmonics, and transients remain prevalent, posing significant challenges to utilities and end-users al...
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...
In the realm of power systems, achieving top-notch power quality is a constant pursuit. One key technology that comes to the rescue is the Active Power Filter (APF). The Active Power Filter Production Line plays a crucial role in ensuring the efficient and reliable operation of power systems. Often, we only notice power quality problems when disasters strike. System malfunctions, equ...
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...
Reasons of Neutral Current The neutral current is the current flowing through the neutral conductor in a multi-phase electrical system. In a perfectly balanced system, the sum of the currents in all phases should theoretically cancel each other out, resulting in zero neutral current. However, in practice, various factors cause current to flow in the neutral conductor. Reasons for Neutral Cur...
Understanding the IEEE 519–2014 Standard for Harmonics The IEEE 519-2014 standard establishes criteria for voltage and current harmonics distortion in electrical system design. It provides detailed explanations of the existing voltage and current waveforms throughout the system and sets waveform distortion goals for system designers. The standard undergoes periodic updates to stay align...
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