外文翻譯---無(wú)電解電容的永磁同步電動(dòng)機(jī)調(diào)速系統(tǒng)的特點(diǎn)

1、外文資料原文 外文資料原文Characteristics of IPMSM Speed Control SystemWithout Electrolytic CapacitorTatsuya Nishihara,Shigeo Morimoto,and Masayuki SanadaOsaka Prefecture University,1-1,Gakuen-cho,Nakaku,Sakai,Osaka,JapanAbstract—Eli

2、mination of the electrolytic capacitor in the inverters of motor system driven domestic appliances is desirable, because the electrolytic capacitor increases the appliance volume and has the problem of short lifetime. Tw

3、o different control methods for an interior permanent magnet synchronous machine(IPMSM)speed control system without an electrolytic capacitor are compared. The performance of the speed control system is then exami

4、ned using the superior control method and the influence of the motor parameters on the IPMSM drive performance without an electrolytic capacitor is examined. As a result, the influence of inductance is clarified.

5、 Index Terms—elimination of electrolytic capacitor, maximum torque per ampere control, flux weakening control, IPMSM.I.INTRODUCTIONRecently, electrical power converters such as the diode rectifier and inver

6、ter have been adopted in some domestic electric appliances. However, with an electrical power converter, high performance, high efficiency, downsizing, weight saving, low-cost, and long life are desirable. Additionally,

7、harmonic problem at power side must be considered. These are important factors to consider for the evaluation of electrical power converters.[1-3] Therefore, there have been many studies regarding power conversion method

8、s and circuit construction. In general, AC-DC-AC electrical power converters are used as AC-AC frequency converters. However, this method requires a high-capacity electrolytic capacitor, and the size of the electrolytic

9、capacitor for a converter is large Fig.1.Simulation model.III.COMPARISON OF TWO DIFFERENT CONTROL METHODSThe specifications of the simulated machine are shown in Table.I.A comparison of the id=0 and MTPA+FW control metho

10、ds is presented in Fig.2.The motor efficiency is calculated by dividing the mechanical output power by the electrical input power.Iron loss is neglected.The reference speed is 1800 and the load torque is 1 min?1.0 Nm i

11、n the simulations.When the capacity of the capacitor is small,the motor efficiency decreases and the torque ripple increases.The MTPA+FW control method achieves higher motor efficiency and smaller torque ripple than the

12、id=0 control method.IV.CHARACTERISTICS OF THE MAXIMUM TORQUE PERAMPERE AND FLUX WEAKENING CONTROL METHODThe characteristics of the MTPA+FW control method were examined in detail.The reference speed and load torque used w

13、ere 1800 min-1 and 1.0 Nm,respectively.The dc-bus voltage characteristics are shown in Fig.3,and those of the converter input voltage and current are shown in Fig.4.When the capacity of the smoothing capacitor is 1000μF,