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首页> 外文期刊>Electronic product design & test >It can't always be lead:supercapacitor-based power buffer modules
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It can't always be lead:supercapacitor-based power buffer modules

机译：它不能总是领先：基于超级电容器的功率缓冲模块

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摘要

The recent lowering price trend in electrochemical double layer capacitors (EDLCs) can make them an attractive alternative in many applications. Also known as ultracapacitors (ultracaps), supercapacitors (supercaps) or green-caps, EDLCs have been available on the market for more than 15 years, and have proven to be a well-known and reliable component. Initially expensive, these components were therefore unsuitable as energy storage devices in DC-UPS applications, and were reserved for other applications, such as energy storage for regenerative braking systems or for providing short peak currents. However, the standard price for these capacitors has reduced by almost half over the past five years, which now makes it possible to utilise them as energy storage devices in DC-UPS systems.Comparing the buffer times of capacitor and battery-based systems does not achieve any meaningful purpose. Batteries always win when energy densities are compared. It is much more important to take the actual required buffer time into account. If this is between 15 and 150 seconds, then EDLC capacitors can compete on price - and at the same time, still demonstrate many advantages.Among these advantages are low weight, absolute freedom from maintenance, no follow-up costs, short charging time, no requirement for disposal of batteries, regulated output voltage in buffer mode and many more.
机译：近期电化学双层电容器（EDLC）的降低价格趋势可以使它们在许多应用中具有吸引力的替代品。又称超级电容器（Ultracaps），超级电容器（超级胶囊）或绿色帽，EDLC在市场上可用超过15年，已被证明是一个众所周知和可靠的组成部分。因此，这些部件因此不适合作为DC-UPS应用中的能量存储装置，并且被保留用于其他应用，例如用于再生制动系统的能量存储器或用于提供短峰值电流。但是，这些电容器的标准价格降低了几乎五年的几乎一半，现在可以将它们用作DC-UPS Systems中的能量存储设备..可以将电容器的缓冲时间和基于电池的系统不可行达到任何有意义的目的。电池总是赢得能量密度时赢得比较。考虑实际所需的缓冲时间是更重要的。如果这是在15到150秒之间，EDLC电容器可以在价格上竞争 - 并且同时仍然表现出许多优点。这些优势的重量低，维护绝对自由，无需后续成本，充电时间短，收费短无需处理电池，缓冲模式中的调节输出电压等等。

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