負轉差率 的英文怎麼說
中文拼音 [fùzhuǎnchālǜ]
負轉差率
英文
negative slip-
The programme logic controller is utilized to control the inverter ' s output frequency which accomplishes controlling the velocity of speed - controlling asynchronous moter. the velocity between main asynchronous moter and speed - controlling asynchronous moter is composed by way of the differential planetary gear train, the tranmission system is made to regulate velocity stepless in large scope which succeed in controlling starting progress of load
使用可編程式控制制器對變頻器的輸出頻率進行控制,實現對調速電機轉速的控制。調速電機與主電機的轉速經差動行星輪系的速度合成,可使傳動系統在很大范圍內無級調速,實現對負載的可控起動。Feedrate planning of continuous micro - line ' s start and end points are discussed, and the constraining conditions, including the machine ' s acceleration and deceleration capability, allowable error of corner machining, maximum acceleration and dynamical behavior of the machine, are established 。
摘要針對連續小直線段高速高精插補演算法中起始點和終止點的速度規劃,建立了包含機床加減速性能、轉接處誤差控制、最大加速度以及機床負載功率等的速度約束條件。Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system, the control of the load and the sliding in stable status, direct - current - brake of ac motor, this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system, calculated the efficiency of load motor in stable status and the moment of load motor in braking. this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters
本文還通過建立慣性制動器試驗臺的包括機電傳動系統的運動方程、穩態運行時負載與轉差率控制、交流電動機直流制動在內的三個數學模型,確定驅動電機的頻率取值范圍和傳動系統的傳動效率,驗算慣性制動器穩態運行時負載電機軸功率和慣性制動器制動時負載電機軸力矩,完成慣性制動器試驗臺設計中的機械部分,為慣性制動器各參數的測量提供工具。Based on slip frequency control strategy for the mutual - feed test bed, it is studied the regulation of traction motor speed as well as the analog load resistance torque with analog load
摘要針對互饋試驗臺,基於轉差頻率控制策略,研究了牽引電機側速度的調節和負載模擬側阻力矩的調節。Firstly, the experimental phase current and input power data obtained from load test are employed to estimate the parameters in ii rated condition. then, the phase current and input power data in locked rotor condition are used to track the variation of the parameters of the secondary coil with slip frequency. the classical method and the direct modification method are also used to estimate the parameters of the induction machine in comparison with this technique
首先利用了負載試驗的定子電流和輸入功率數據來識別額定工況下的電機參數,然後又使用了堵轉時的定子電流、輸入功率數據來識別電機二次繞組參數隨轉差頻率的變化,並與傳統參數測試方法和直接修正參數法進行了比較。For the operation performance of thsc series of sheet cutters, basically the machine speed of 300 m min and the cutting speed of 500 cut min can be reached in the range of 1400 - 1900 series, but it is hardly to reach it under operation of the remain series, such as : 2100 - 3500, however, still depend on the quality of base paper. the deviation of cutting length is approximately about 0. 3 mm
在運轉性能方面: thsc系列切紙機其裁切紙張線速度最高可達300m min ,切刀數500cut min ,其裁切的長度偏差值為0 . mm ,當裁切多層紙張時,切刀的負載可達600gsm ,可以說是真正高科技高效率的切紙機。The analyses show that slip changes with an change in frequency for an induction motor with frequency speed control
給出了在不同性質的負載和頻率條件下,電動機的轉差率和轉速的計算公式。The results suggest fraud companies have higher debt ratio and proportion of other receivable to current assets, slower short - term liquidity, have lower ratio of days " sales in receivables, adjusted operational cash flow per share and smaller equity ' s centralization extent than nonfraud companies have. beside non - fraud companies, fraud companies are easier to receive non - standard unqualified auditing opinion
實證結果顯示:舞弊公司與非舞弊公司相比有更高的負債比率、其他應收款占流動資產的比重,更差的短期償債能力,更低的應收賬款周轉率、調整后每股現金和股權集中度,也更容易被注冊會計師出具非標準無保留審計意見。Based on the torque - speed characteristic curve of induction motors, analyses were done on changes in slip with an variation in frequency when an induction motor drives different kinds of loads, including those with constant torque, constant - maximum torque, variable torque ( except fans and pumps ) and constant power, as well as fans and pumps, the formulas to calculate the slip and the speed under different frequencies and loads were presented
摘要以異步電動機機械特性曲線為基礎,分析了變頻調速異步電動機在拖動恆轉矩負載、恆最大轉矩負載、變轉矩(非風機和泵類)負載、恆功率負載以及風機和泵類負載時,轉差率隨頻率變化的規律。The sub - committee noted that the hong kong dollar exchange rate had strengthened slightly during the reporting period. interbank interest rates had declined and their negative spreads against the us dollar rates had widened
貨幣發行委員會委員會獲悉報告期內港元匯率略為轉強,銀行同業拆息下跌,港元與美元利率的負差距擴大。The sub - committee noted that the hong kong dollar exchange rate had weakened slightly during the reporting period. the patterns of interbank interest rates and their negative spreads against the us dollar rates had been mixed
貨幣發行委員會委員會獲悉報告期內港元匯率略為轉弱,銀行同業拆息及港元與美元利率的負差距表現參差。The factors which affect load frequency characteristics are dissected in this thesis. frequency characteristics of constant revolution controlled load 、 synchronous motor dragged load 、 asynchronous motor dragged load and their effect to dynamic frequency characteristics are analysed. conclusion is reached as : increasing the efficiency of asynchronous motor can recede its slip and improve dynamic frequency characteristics
論文深入分析了影響負荷頻率特性的因素,分析了恆轉速控制工具機、同步機拖動工具機以及異步機拖動工具機的頻率特性和它們分別對系統動態頻率過程的影響,得出了恆轉速控制工具機對系統動態頻率不利;提高異步機的效率可降低其轉差率,從而改善系統動態頻率特性的結論。分享友人