error n. 1.錯誤;失錯。 2.謬見,誤想;誤信;誤解。 3.罪過。 4.【數(shù)學】誤差;【法律】誤審,違法;(棒球中的)錯打。 commit [make] an error 犯[出]錯。 correct errors 改正錯誤。 a clerk's [clerical] error 筆誤。 mean errors 標準誤差。 a writ of error 【法律】(推翻錯誤原判的)再審命令。 nature's error 天生畸形。 in error 弄錯了的;錯誤地。 errors of commission [omission] 違犯[疏忽]罪。 fall into error 誤入歧途。 nature's error 天生畸形。 adj. -less 無錯誤的,正確的。
Offset error , which is a basic problem in subdivision surface , is also presented in the paper 作為細分曲面等距的一個基本問題,本文還對等距曲面誤差進行了分析。
Specific issues examined are : compensation for the variation of the stator resistance , the offset error of the dc bus voltage , the voltage error generated by the forward voltage drop the dead time of the switches , improvement of the steady state performance , and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis 定子電阻變化,直流母線電壓漂移,開關器件反向相電壓降、逆變器死區(qū)時間引起的電壓誤差的補償,提高系統(tǒng)穩(wěn)態(tài)運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制算法的一個卓越的性能。
The accurate calculation of the input voltage and the compensation for the dc - offset error and the variation of the stator resistance are important factors in practical implementation of the integration since they can cause a drift in the stator flux linkage trajectory and furthermore deteriorate the quality of torque control 因此,輸入電壓的準確計算、直流漂移量的補償以及定子電阻變化的補償都是影響積分計算準確性的重要因素,這些誤差會導致定子磁鏈軌跡的偏移,進而降低系統(tǒng)轉矩控制的性能。