Kamcap

  Application Of Supercapacitor   In Smart Grid   Today's society has higher and higher requirements for the quality and safety and reliability of energy and power supply. The traditional large-grid power supply method cannot meet this requirement because of its own defects. A new type of power grid capable of integrating distributed power generation – micro-grid emerges as the times require. It can save investment, reduce energy consumption, improve system safety and flexibility, and is the future development direction. Capacitance plays an important role as an indispensable energy storage system in the microgrid. As a new type of energy storage device, supercapacitor has become one of the preferred devices for microgrid energy storage with its irreplaceable superiority. The microgrid consists of micro power supplies, loads, energy storage, and energy managers. The form of energy storage in the microgrid is: connected to the DC bus of the micro power supply, the feeder c...

  Any Super capacitor/ultra capacitor will discharge through an internal shunt resistance in the case of electrification. This discharge current is called leakage current, which affects the self-discharge of the Super capacitor/ultra capacitor unit. Similar to some secondary battery technologies, the voltage of Super capacitor/ultra capacitor also needs to be balanced when used in series, because the leakage current exists in the super capacitor, and the magnitude of the internal shunt resistance determines the voltage distribution on the series Super capacitor/ultra capacitor unit. When the voltage of ultracapacitor ups  is stable, the voltage on each cell will change with the leakage current, not with the capacitance. The larger the leakage current, the smaller the rated voltage. On the contrary, the smaller the leakage current, the higher the rated voltage. This is because the leakage current will cause the discharge of Super capacitor/ultra capacitor cells and reduce the v...

Conventional capacitors can only meet the requirements of circuit operation with a simple structure and small load, but it is difficult to store charge for circuit operation with a large load. In recent years, the popularization and application of supercaps have effectively solved the problem of large load circuit operation and ensured the normal performance of power electronic equipment. Super capacitor advantages Ultra capacitors are the upgrade of ordinary capacitor devices, and many improvements have been made to the early capacitors. The main advantages are (1) capacitance. The conventional capacitors used in the early stage have small capacitor storage capacity, which can only meet the needs of small load circuit; while the capacitor level of super capacitor can reach farad level, which can meet the needs of more complex circuit operation. (2) Circuit. Ultra capacitor has a low requirement on the circuit structure. It does not need to set up a special charging circuit an...