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18 2025-02 What power quality problems can active power filters solve in power systems
Active power filter is an advanced power electronic device mainly used to solve power quality problems caused by nonlinear loads in power systems. It actively generates compensation currents opposite to the parameters of harmonics, reactive power, and unbalanced current in the power grid through real-time monitoring, thereby achieving active governance of the power grid. Active power filters play an important role in solving power quality problems in the power system. The following will discuss in detail which problems they can solve.
18 2025-02 Does a static reactive power generator have the function of a capacitor?
Static Var Generator (SVG) has the function of a capacitor, but the two differ in function and principle.
18 2025-02 What is the working principle of a static reactive power generator?
The working principle of Static Var Generator (SVG) is to use switchable power electronic devices (such as IGBT) to form a self commutation bridge circuit, which is connected in parallel to the power grid through a reactor. The amplitude and phase of the output voltage on the AC side of the bridge circuit are adjusted appropriately, or the AC side current is directly controlled to quickly absorb or emit the required reactive power, achieving the goal of rapid dynamic adjustment of reactive power.