1、

the aim of this paper is making two motors to achieve synchronous operation, and making an excavator to work in the best operating conditions through the frequency control technology of asynchronous motor and the use of digital pid to control the two motors.

本文的研究正是想通过交流电动机的变频调速技术,采用数字PID控制两个电动机,使两个电动机实现同步运转,使挖掘机在最佳的工作状态下运转。

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investigation on feasibility of γ simulator and emp simulator synchronous operation

γ模拟器与EMP模拟器同步运行可行性研究

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Traditionally, the stability problem has been one of maintaining synchronous operation.

传统上, 稳定性问题一直是一个保持同步运行.

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B, in the synchronous operation and most are multi-threaded and overtime control.

在同步操作时大多数采用了 多线程 和超时控制.

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Direct Thrust Control for Linear Synchronous Motors and Sensorless Operation

直线同步电动机直接牵引力控制及无速度传感器运行研究

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Analysis of the usual operation trouble and abnormal working position of the synchronous generator

同步发电机运行故障和不正常工作状态分析

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It can serve for synchronous spinning reserve, load following, frequency control and synchronous condenser operation.

抽水蓄能电站具有运行灵活、启动迅速的特点,其在电力系统的动态效益主要表现在紧急事故备用、负荷跟踪、调频和同步调相上。

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Dynamic benefits come from its fast starting and flexible operation, including frequency regulation, synchronous condenser operation, fast coverage of steep load gradient and synchronous spinning reserve.

动态效益则是由于蓄能电站启动迅速、运行灵活,在承担系统调频、调相、负荷调整和紧急事故备用等动态任务,满足系统动态运行需要而产生的经济效益。

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with wider operation range and faster response time, the static synchronous compensator ( statcom) possesses better performance than other reactive compensate devices used before.

相比于传统无功补偿装置,STATCOM有着更好的工作性能,如工作范围宽、响应速度快等。

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Direct thrust control for interior permanent magnet linear synchronous motor ( IPMLSM) with hysteresis causes notable thrust as well as flux and current pulses during steady-state operation or with uncertain switch frequency.

直线永磁同步电机直接推力滞环控制,导致开关频率不定及稳态运行时会有明显的推力和磁链脉动产生。

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Direct drive permanent magnet synchronous generation system plays an important role in the variable speed constant frequency wind power generation field because of its good operation performance, high efficiency and high reliability.

直驱式永磁同步风力发电系统因其良好的运行性能、效率高与高可靠性等优点,在变速恒频发电领域占据着越来越重要的地位。

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The paper offers a scheme of improved loop integration with digital mixer, operation speed of synchronous counting chain is much lower than the routine ones, but other functions of this loop would be the same with a common loop.

本文提出一种带数字混频器的改进环合成方案,其同步计数链的运算速度较之常规大为降低,而其他性能仍可做到和常规环一样。

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The multiple fault testing of synchronous sequential circuit with the dynamic Boolean equation method which reduces the Exclusive-OR operation to the logic addition one is proposed.

本文提出了同步时序线路多故障测试动态布尔方程方法,它将同步时序线路中的异或运算归结为逻辑加运算,可一次求出被测线上双固定型故障s-a-1和s-a-0的全部测试集。

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Moreover, atomic operation, hybrid logging, database spaces pseudo-release policy, group commit, two-way-scan recovery and synchronous database loading algorithm are adopted in this prototype.

另外,原型系统中采用了原子操作、混合日志、数据库空间伪释放、成组提交、两趟扫描恢复、同步加载等方面的技术。

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application of piker transformation in the operation of synchronous

派克变换在同步发电机运行中的应用

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analysis of the field-weakening operation designed for spindle permanent synchronous motor

电主轴永磁同步电机的弱磁过程研究

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study on pulsating torque of single - phase permanent - magnet synchronous motor at variable frequency operation

单相永磁同步电动机变频调速的脉动转矩研究

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20、

analysis and practice for electric generator operation as synchronous condenser

发电机组作调相机运行的分析与实践

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