Development of a large-capacity high-efficiency ac/dc power conversion system complying with harmonic guidelines

开发符合谐波准则的大容量高效交流/直流电源转换系统

• 批准号: 09555087
• 负责人: AKAGI Hirofumi
• 金额: $ 8.19万
• 依托单位: OKAYAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555087/
• 关键词: Series active filters; Diode rectifiers; Current harmonics; Power conversion; Power electronics; 電源高調波; アクティブフィルタ; 直流偏磁; PWMインバータ; 高調波; 配電系統; 整流回路

Large-capacity pulse-width-modulated (PWM) rectifiers consisting of the same power circuit topology as PWM inverters have shown promise in meeting the harmonic guidelines enacted on Oct. 3, 1994. The increased cost and switching loss caused by PWM, however, would make a high-power PWM rectifier rated at 1-10 MW economically impractical. The reason is that GTO thyristors of IGBT's used for the PWM rectifier are subjected to high-frequency switching of the full amount of active power.The authors propose a new ac/dc power conversion system providing a solution to the abovementioned problems hidden in PWM rectifiers. A small-rated series active filter for the purpose of achieving harmonic compensation is integrated with a large-rated double-series diode rectifier for the propose of performing ac/dc power conversion. An ac/dc power conversion system consisting of a 20-kVA diode rectifier and 0.2-kVA series active filter has been designed and constructed to verify the practical viability and justification by experiment. Based on experimental results obtained from the laboratory system, along with theoretical results, this research is summarized as follows.・ A delay time as short as 40μs may make the active filter unstable when the ac/dc power conversion system is installed on a "stiff" power system.・ The authors propose and evaluate a new configuration of the harmonic extraction circuit capable of eliminating the effect of delay time on the system stability.・ A switching-ripple filter is designed and tested. The effect of the filter on the system stability is also discussed theoretically and experimentally.

由与 PWM 逆变器相同的电源电路拓扑组成的大容量脉宽调制 (PWM) 整流器有望满足 1994 年 10 月 3 日颁布的谐波准则。然而，由于 PWM 导致成本和开关损耗增加，将使额定功率为 1-10 MW 的大功率 PWM 整流器在经济上不切实际，原因是 IGBT 的 GTO 晶闸管用于该器件。 PWM整流器受到全量有功功率的高频开关。作者提出了一种新的交直流功率变换系统，为解决PWM整流器中隐藏的上述问题提供了一种小额定串联有源滤波器。实现谐波补偿的装置与大额定双串联二极管整流器集成，用于执行交流/直流功率转换由20kVA二极管组成的交流/直流功率转换系统。整流器和 0.2-kVA 系列有源滤波器的设计和构建，通过实验验证了实际可行性和合理性。基于实验室系统获得的实验结果以及理论结果，本研究总结如下。 ・ 延迟时间为当交流/直流电源转换系统安装在“刚性”电力系统上时，短至 40μs 的时间可能会使有源滤波器不稳定。 ・ 作者提出并评估了一种新的谐波提取电路配置，该配置能够消除延迟时间对电源的影响。系统稳定性。设计并测试了开关纹波滤波器，并从理论上和实验上讨论了滤波器对系统稳定性的影响。

项目成果

S. Srianthumrong, H. Fujita and H. Akagi: "Stability Analysis of a Series Active Filter Integrated with a Double-Series Diode Rectifier"IEEE Power Electronics Specialist Conference. to be published with 7 pages. (2000)

S. Srianthumrong、H. Fujita 和 H. Akagi：“与双串联二极管整流器集成的串联有源滤波器的稳定性分析”IEEE 电力电子专家会议。

H. Fujita and H. Akagi: "An Approach to Harmonic-Free AC/DC Power Conversion for Large Industrial Load : The Integration of a Series Active Filter with a Double-Series Diode Rectifier"IEEE Trans. on Industry Applications. vol.33, no.5. 1233-1240 (1997)

H. Fujita 和 H. Akagi：“大型工业负载的无谐波 AC/DC 电源转换方法：串联有源滤波器与双串联二极管整流器的集成”IEEE Trans。

S. Srianthumrong, et al.: "Stability Analysis of a Series Active Filter Integrated with a Double-Series Diode Rectifier"IEEE Power Electronics Specialist Conference. (発表予定). (2000)

S. Srianthumrong 等人：“与双串联二极管整流器集成的串联有源滤波器的稳定性分析”IEEE 电力电子专家会议（即将发表）。

高田,藤田,赤木: "大容量ダイオード整流回路の高調波抑制を目的とした直列形アクティブフィルタ"電気学会半導体電力変換研究会. spc. 35-40 (1999)

Takada、Fujita、Akagi：“用于抑制大容量二极管整流电路中的谐波的串联有源滤波器”日本电气工程师学会半导体功率转换研究组 35-40 (1999)。

H. Fujita and H. Akagi: "An Approach to Harmonic-Free AC/DC Power Conversion for Large Industrial Load : The Integration of a Series Active Filter with a Rectifier"IEEE Trans. on Industry Application. 33. 1233-1240 (1997)

H. Fujita 和 H. Akagi：“大型工业负载的无谐波 AC/DC 电源转换方法：串联有源滤波器与整流器的集成”IEEE Trans。