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，由于对电能质量敏感的设备如个人计算机和半导体生产设备的增加，电能质量成为电力系统的重要问题。虽然有源滤波器是改善电能质量最有效的措施，但由于其储能太小，无法控制有功功率。另一方面，从AC系统侧来看，具有电压型逆变器-转换器单元的SMIES（超导磁能量存储）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。本文利用EMTP-ATP软件，对超导储能系统（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作用进行了研究。这些功能通过基本相同的控制系统来实现。因此，这些功能可以同时实现。为了保证SMES的可靠性，在EMTP上建立了由PWM变换器、直流可逆斩波器和电感组成的SMES模型。在EMTP-ATP模型的基础上，对控制系统进行了描述。仿真结果表明，该控制系统同时实现了上述几种功能。接下来，研究了这些功能被激活时超导磁储能系统线圈电流的变化规律。为了抑制谐波电流和平衡三相分量，发现由于超导磁储能系统各相输出功率不同，线圈电流是振荡的。虽然其他功能，如电压骤降补偿和UPS需要大量的能量，这些功能并不需要大量的能量。然而，即使是谐波电流补偿和三相平衡功能，超导磁储能系统也应该有一定的储能量，以阻尼线圈电流的振荡。

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, Y.Okubayashi: "Power Quality Improvement of Power Systems by SMES"Proc.of European Conference on Applied Superconductivity. (To be published). (2004)

H.Miyauchi、K.Eguchi、Y.Okubayashi：“通过 SMES 提高电力系统的电能质量”欧洲应用超导会议论文集。

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。