政院国家科学委员会补助专题研究计画成果报告
应用於内嵌式永磁无刷电动机驱动器之新型宽广速驱动策之研制
(Development of a New Control Strategy for Interior Permanent Magnet Brushless Motor Drives over Extended Speed Range)
计画别:■个别型计画
□ 整合型计画
计画编号:NSC 95-2221-E-159-029 执期间:95 8 月 1 日至 96 7 月 31 日
计画主持人:苏信铭 共同主持人: 计画与人员:吴昆
成果报告型(依经费核定清单规定缴交):■简报告 本成果报告包括以下应缴交之附件: □赴国外出差或研习心得报告一份 □赴大地区出差或研习心得报告一份 ■出席国际学术会议心得报告及发表之文各一份 □国际合作研究计画国外研究报告书一份
□完整报告
处方式:除产学合作研究计画,提升产业技术及人才培育研究计画, 管计画及下情形者外,得即公开查询 ■涉及专或其他智慧财产权,□一■二后可公开查询 执单位:明新科技大学电机工程系 中 华 民 国 96 8 月 31 日
应用於内嵌式永磁无刷电动机驱动器之新型宽广速驱动策之研制
Development of a New Control Strategy for Interior Permanent Magnet Brushless Motor Drives over Extended Speed Range 计画编号:NSC 95-2221-E-159-029 执期间:95 8 月 1 日至 96 7 月 31 日 计画主持人:苏信铭 计画与人员:吴昆 执单位:明新科技大学电机工程系
1.摘要 本计画主要目的在研发内嵌式永磁无刷电动机 驱动器之新型宽广速驱动策.在本计画中已经 成功地研制驱动内嵌式永磁无刷电动机的新型换向 相位超前方法达到高速弱磁控制的目的,由实验 结果得知其性能比传统的弱磁换方法具有较低脉 动转矩与较低功损失.而且本驱动器反器采用 电压控制方式,可以节电感测元件的成本,但 是其功能仍保有反器过电保护的功能.本驱动 方法使电动机转速范围可和缓延伸到高转速弱磁 区,实验结果亦显示高速弱磁区的输出功比额定 转速输出额定功时为高,所以本策已使用内嵌 式永磁无刷电动机的磁阻转矩提高弱磁区的输出 功,即定转矩极限区已经可延伸至较高转速区 域.本计画是采用一颗位信号处器为控制核心 建驱动器的雏形,在本报告并附上一些实验 波形图印证本换方法的好性能. 关键字:弱磁控制,内嵌式永磁无刷电动机. Abstract---The major purpose of this project is to develop a new control strategy for interior permanent magnet brushless motor (IPM-BLDC) drives over extended speed range. A new phase-advanced commutation method for the field-weakening control has been successfully developed in this project. Experimental results have shown that the new method has lower pulsating torque and higher efficiency than the conventional one. In addition, the drive uses only 1
voltage control strategy such that the current sensors can be eliminated to reduce the hardware cost. Hence, an indirect over current detection method is developed to protect the drive from over load. The motor speed has a smooth transition from low speed region to the field-weakening high speed region by using the method. Experimental results also show that the speed range of the constant torque limit region has been extended. It indicates that the reluctance torque has been developed by applying the field-weakening control. A DSP-based prototype drive is constructed to verify the feasibility of the proposed scheme and some experimental results are provided to show the satisfactory performances of the drive. Keywords: field weakening control, interior permanent magnet brushless motor (IPM-BLDC). 2.报告内容 2.1 前言 本研究计画之背景是针对国科会电工程学门 规划的研究方向,配合政府发展高效能驱动与节能 政策而提出之一期计画.鉴於最近各项有关能源 与地球环保的议题广受重视并纷纷投入资源加以研 究.而如地球石油能源的逐渐耗尽,石油的蕴藏只 剩约 50 的使用,限制温室气体(如二氧化碳) 排放的京议定书已经在 2005 2 月生效,从 2006 到 2007 间国际石油价格飙涨,2007 欧洲

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