Power electronics technology is a modern technology that uses power electronic devices to transform and control electrical energy. The energy saving effect can reach 10% to 40%, which can reduce the volume of electromechanical equipment and achieve the best working efficiency. At present, semiconductor power components are developing toward high voltage and large capacity. In the power electronics industry, flexible AC transmission technology represented by SVC, new ultra-high voltage transmission technology represented by high-voltage direct current transmission, and electric power represented by high-voltage frequency conversion have emerged. Transmission technology, synchronous breaking technology represented by intelligent switch, and user power technology represented by static var generator and dynamic voltage restorer.
Flexible AC transmission technology is one of the key technologies for large-scale access to power grid systems for new energy and clean energy. It combines power electronics technology with modern control technology to reduce power transmission losses by continuously adjusting and controlling power system parameters. Improve the transmission capacity of transmission lines and ensure the stability level of the power system.
High-voltage direct current transmission technology has unique advantages for long-distance transmission and high-voltage direct current transmission. Among them, the light-duty DC transmission system uses a shut-off device such as GTO and IGBT to form an inverter, so that the medium-sized DC transmission project is also competitive at a short transmission distance. In addition, the inverter can be turned off, and can also be used to supply power to isolated small systems such as offshore oil platforms and islands. In the future, it can also be used in urban power distribution systems to access distributed power sources such as fuel cells and photovoltaic power generation. The light-duty DC transmission system is more conducive to solving the problem of clean energy Internet stability.
The biggest advantage of high-voltage frequency conversion technology is that the power saving rate is generally about 30%, but the disadvantage is high cost and high-order harmonic pollution. Synchronous breaking (smart switching) technology completes the opening or closing of a circuit at a specified phase of voltage or current. At present, high-voltage switches are mostly mechanical switches, which have long breaking time and large dispersion, and it is difficult to achieve accurate phasing breaking. The fundamental way to achieve synchronous breaking is to replace the mechanical switch with an electronic switch.
Solid - state capacitors are all called: solid - state Aluminum Electrolytic Capacitors.It with the ordinary capacitance (that is, the liquid aluminum electrolytic capacitors) the biggest difference is that use different dielectric material, liquid aluminum capacitor dielectric material as the electrolyte, and solid-state capacitor dielectric material is conductive polymer materials.Solid-state capacitors / Motor starting capacitors
Solid-State Capacitors / Motor starting capacitors
Solid-state capacitors / Motor starting capacitors,Solid-State Capacitors,Solid-State Small Size Capacitors,Solid-State Low Impedance Capacitors,Long Life Solid-State Capacitors
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