超导储能在改善电能质量方面的应用

随着现代科学技术的发展,电力用户对电能质量的要求不断提高。超导储能系统不仅可以进行电压跌落补偿,还可以实现负载波动补偿和有源滤波等功能,从而实现了统一电能质量调节。本文阐述了SMES系统的主要组成,并针对不同应用给出了相应的控制算法和实验结果。实验结果表明,超导储能系统可以有效地改善用户电能质量。

Application of SMES to Improve Power Quality

With the development of modern technology, high quality power supply becomes more desirable in everyday life. Among problems related with the power quality, the most urgent is the voltage sag; with the application of power electronics devices, the power system is polluted by harmonics. SMES (Superconducting Magnet Energy Storage) system can not only compensate the voltage sag, but also provide a load-fluctuation compensation and active power filtering. In addition, the SMES system has the advantage of quick response, high power output, high efficiency and the ability to output both active and reactive power. As a result, the SMES system can be used as the unified power quality conditioner. The main structure of SMES system is introduced; control algorithm and experiment results with different applications are demonstrated. The results show that SMES system is effective in improving the power quality.