Research of Current Source Converter Suitable for Energy Storage System with Batteries

适用于电池储能系统的电流源变换器的研究

• 批准号: 14550276
• 负责人: IIDA Shoji
• 金额: $ 1.02万
• 依托单位: Tokyo Denki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550276/
• 关键词: Current source converter; Current source inverter; Energy storage system with batteries; Single-phase three-wire distribution system; Three-phase transmission system; System interconnection; Harmonic reduction; DC smoothing reactor; 電力貯蔵; 蓄電池; 系

In this research, we investigate current source converters suitable for energy storage systems with batteries. First, a simplified single-phase cascade current source inverter is proposed. It has the same construction as the conventional three-phase current source inverter that is interconnected to the single-phase three-wire distribution system. Though the proposed circuit has no output transformer, the output currents can be obtained as the five-level waveforms by diverting the pole transformer in the utility system. With discussing several experimental discharging characteristics to the power grid, it is clarified that the output distortions can be decreased sufficiently. Moreover, the proposed equipments are improved so as to minimize the dc smoothing reactor. As a result, the reactor capacity can be decreased to a hundredth, from 300mH to 3.5mH.Next, several PWM control schemes for the three-phase current source inverters are investigated. We propose novel PWM control patterns, which can be simplified effectively by overlapping the control signals to the plural switching devices as long as the inverters are interconnected to the power grid. To decide respective pulse widths composing output currents, a method in proportion to the corresponding system ac voltage is presented. Several experimental discussions for the charging characteristics with the converter and the discharging ones with the inverter are discussed in detail. Then, by improving to the compound control scheme with PWM and PFM, harmonic reductions in the ac line currents can be satisfactory for the Guidelines for System Interconnection.

在这项研究中，我们调查电流源转换器适用于能量存储系统与电池。首先，提出了一种简化的单相级联电流源逆变器。它具有与传统的三相电流源逆变器相同的结构，该逆变器与单相三线配电系统互连。虽然该电路没有输出Transformer，但通过对电力系统中的极间Transformer进行分流，可以获得五电平波形的输出电流。通过对几种实验放电特性的分析，说明了该方法可以有效地减小输出畸变。此外，建议的设备进行了改进，以尽量减少直流平滑电抗器。因此，电抗器的容量可以减少到百分之一，从300mH到3.5mH。接下来，研究了几种用于三相电流型逆变器的PWM控制方案。我们提出了新的PWM控制模式，它可以有效地简化重叠的控制信号的多个开关器件，只要逆变器互连到电网。为了确定构成输出电流的各个脉冲宽度，提出了与相应系统交流电压成比例的方法。文中还对变换器的充电特性和逆变器的放电特性进行了详细的实验讨论。然后，通过改进的PWM和PFM的复合控制方案，在交流线电流的谐波抑制可以令人满意的系统互连的指南。

项目成果

飯田祥二, 枡川重男, 川崎智宏: "三相系統連系用電流形PWMインバータの検討"電気学会全国大会講演論文集. IV. 146-147 (2003)

Shoji Iida、Shigeo Masukawa、Tomohiro Kawasaki：“用于三相电网连接的电流源 PWM 逆变器的研究”日本电气工程师学会全国会议论文集 IV 146-147。

S.Iida, S.Masukawa, T.Kawasaki: "A Simplified PWM Control Scheme for Three-Phase Current Source Converter"European Conference on Power Electronics and Applications. (発表予定). (2003)

S.Iida、S.Masukawa、T.Kawasaki：“三相电流源转换器的简化 PWM 控制方案”欧洲电力电子与应用会议（即将发表）。

S.Iida, T.Kawasaki, S.Masukawa: "A Simplified PWM Control Scheme for Three-Phase Current Source Converter"EPE(10^<th> European Conference on Power Electronics and Applications). CD-ROM. 1-6 (2003)

S.Iida、T.Kawasaki、S.Masukawa：“三相电流源变换器的简化 PWM 控制方案”EPE（第 10 届欧洲电力电子与应用会议）。

T.Kaimi, S.Masukawa, S.Iida: "A Trial Manufacture of a Three-Phase Current Source Inverter Interconnected to Utility"Institution of Electrical Engineers of Japan, Proceedings of Research Meeting on Semiconductor Power Converters. Vol.SPC-04, No.42. 53-58

T.Kaimi、S.Masukawa、S.Iida：“与公用事业互连的三相电流源逆变器的试制”日本电气工程师学会，半导体功率转换器研究会议论文集。

皆見崇之, 枡川重男, 飯田祥二: "系統連系用三相電流形インバータの試作"電気学会半導体電力変換研究会資料. SPC-04-42. 53-58 (2004)

Takayuki Minami、Shigeo Masukawa、Shoji Iida：“用于电网连接的三相电流源逆变器原型”IEEJ 半导体功率转换研究组材料。