Introduction of Multi-functional Power Quality Improvement Energy Storage System to Power Systems

多功能电能质量改善储能系统引入电力系统

• 批准号: 13650311
• 负责人: MIYAUCHI Hajime
• 金额: $ 2.18万
• 依托单位: Kumamoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650311/
• 关键词: SMES; EMTP-ATP; Power Quality; Harmonics; Voltage Sag; Three-phase Balancing; Active Filter; 超伝導エネルギー貯蔵装置; 高調波抑制; 電圧低下補償; 三相平衡化補償; アクティブフィルタ; EMTP; 瞬時電圧低下; 補償制御

Power quality becomes the important problems of power systems recently due to the increase of the sensitive equipments to power qualities, such as personal computers and product facilities of semiconductors. Though the active filter is the most effective countermeasure for the power quality improvement, it cannot control the active power because its stored energy is too small. On the other hand, seeing form the AC system side, SMIES (Superconducting magnetic energy storage) with the voltage type inverter-converter unit has the same configuration as the active filter. Therefore, SMES can work as well as the active filter. The difference is its stored energy.In this paper, using EMTP-ATP, the effect of the power quality improvement by SMES, such as the harmonics current compensation, voltage sag compensation, UPS and three-phase balancing, is examined. These functions are achieved by the basically same control system. Therefore, a couple of these functions are achieved at the same time. To make sure, SMES is modeled on EMTP by PWM converter, DC reversible chopper and inductance. The control system is presented on MODELS of EMTP-ATP. Thus the simulation results are made clear that the control system achieves a couple of these functions at the same time.Next, the coil current of SMES is investigated when these functions are activated. To damp harmonics current and to balance three-phase components, it is found that the coil current is vibrating, because the output of SMES in each phase is different. Though the other functions such as voltage sag compensation and UPS need large energy, these functions do not need large energy. Nevertheless, even for the functions of harmonics current compensation and three-phase balancing, SMES should have amount of stored energy in order to damp the vibration in the coil current.

近年来，由于个人计算机、半导体生产设备等对电能质量敏感的设备不断增多，电能质量成为电力系统的重要问题。有源滤波器虽然是改善电能质量最有效的对策，但由于其存储的能量太小，无法控制有功功率。另一方面，从交流系统侧来看，具有电压型逆变器-变流器单元的SMIES（超导磁能存储）具有与有源滤波器相同的配置。因此，SMES 可以像有源滤波器一样工作。不同之处在于其存储的能量不同。本文利用EMTP-ATP，考察了SMES的谐波电流补偿、电压暂降补偿、UPS和三相平衡等改善电能质量的效果。这些功能都是通过基本相同的控制系统来实现的。因此，同时实现了其中几个功能。为了确保这一点，SMES 通过 PWM 转换器、直流可逆斩波器和电感以 EMTP 为模型。控制系统在EMTP-ATP模型上提出。仿真结果表明控制系统同时实现了这几个功能。接下来,研究了这些功能激活时SMES的线圈电流。为了抑制谐波电流并平衡三相分量，发现由于各相SMES的输出不同，线圈电流产生振动。虽然电压暂降补偿和UPS等其他功能需要大量能量，但这些功能不需要大量能量。然而，即使是为了谐波电流补偿和三相平衡的功能，SMES也应该具有一定的存储能量，以抑制线圈电流的振动。

项目成果

H.Miyauchi, K.Eguchi, Y.Okubayashi: "Power Quality Improvement of Power Systems by SMES"Proc. of European Conference on Applied Superconductivity 2003. (to be published). (2004)

H.Miyauchi、K.Eguchi、Y.Okubayashi：“SMES 改善电力系统的电能质量”Proc。

宮内 肇, 江口恵介, 林 秀美: "電力品質改善へのSMESの適用"平成14年電気学会電力・エネルギー部門大会論文集. 分冊A. 110-115 (2002)

Hajime Miyauchi、Keisuke Eguchi、Hidemi Hayashi：“SMES 在电能质量改善中的应用”2002 年 IEEJ 电力和能源分会会议记录，第 A. 110-115 卷（2002 年）。

H.Miyauchi, K.Eguchi, Y.Okubayashi: "Power quality improvement of power systems by SMES"Proc.of EUCAS 2003. (to be published). (2004)

H.Miyauchi、K.Eguchi、Y.Okubayashi：“SMES 改善电力系统的电能质量”Proc.of EUCAS 2003。（待出版）。

H.Miyauchi, K.Eguchi, H.Hayashi: "Application of SMES to Power Quality Improvement"Proc. of the 13^<th> Annual Conference of Power & Energy Society, IEE of Japan. Vol.A. 110-115 (2002)

H.Miyauchi、K.Eguchi、H.Hayashi：“SMES 在电能质量改善中的应用”Proc。

宮内 肇, 江口恵介, 林 秀美: "電力品質改善へのSMESの適用"平成14年電気学会電力エネルギー部門大会論文集. 分冊A. 110-115 (2002)

Hajime Miyauchi、Keisuke Eguchi、Hidemi Hayashi：“应用 SMES 改善电能质量”2002 年 IEEJ 电力能源部门会议记录，第 A. 110-115 卷（2002 年）。