Its concrete method is : firstly , precondition the program code . secondly , collect information which will be put use to simulate . lastly , make use of the information collected to simulate to compute , and associate with the controlled object ’ s program module to carry out the multi - cyclical closed - loop simulation 它的实现过程是:先对控制计算程序代码进行预处理,接着提取程序代码的结构信息和变量信息,最后利用提取的信息模拟代码做控制计算,并调用受控对象程序模块,得到反馈信号变量的实时值,实现多周期闭环的控制计算仿真。
In this paper point to point control , constant frequency control and up and down frequency control are studied , in which current lagging loop control method is used to restrict over currents . and using flux tracking method , position open loop , position close loop control system are also studied . and research results indicate that larger current ripples are restricted by means of subdividing space vectors 本文以永磁同步电动机为研究对象，分别对同步电动机的点动控制、恒频控制以及升降频控制进行了分析与研究，研究中采用了电流滞环控制方法，可有效地限制过电流现象；此外采用磁链跟踪法对位置开环和位置闭环的步进控制系统分别进行了探讨与研究，研究表明，采用矢量细分后，可有效地减小电流波动。
Finally , the thesis concludes the designing features of the system and the direction in which the research goes in future . on the basis of learning , researching and analyzing the theory of training and development , the system absorbs the successful experience of training from the enterprises at home and abroad . combining the research on the subject with the excellent cases of training in various fields , it finds out the system of training and development that tallies with the actual situation in power plant 在学习、研究、分析培训与发展理论的基础上，本设计体系吸收了国内外企业一些成功培训经验，采用专题研究和社会各界优秀的培训案例相结合，探索符合电力企业实际情况的培训与发展系统；采用理论研究与实际分析相结合，找出存在的问题和差距；从培训需求分析到培训结果的评估，设计出一套闭环的培训管理体系，说明了培训工作也是一个系统工程，需要培训管理者从系统思考的角度来看待和管理培训工作。
In the end , this thesis tests the resonator with three methods in case that it is both open looped and closed looped , and gets the results listed below : 1 taking 1 mhz frequency width ld as the light source , using current injecting frequency modulation method , the output characteristic of the resonator is got , which proves that the laser used in the lab can be used to modulate the frequency using current injecting frequency modulation 本文最后采用三种不同的方法对谐振式光纤陀螺进行了开环和闭环的实验测试，并取得了以下实验结果： 1 、用频宽1mhz的ld作光源，采用电流注入调频的方法，观测到了谐振腔的输出特性曲线。证明了实验采用的激光器可以通过注入电流的方法实现调频。
Nowadays , most chinese enterprises are focusing on how to effectively execute to get things well done . execution is a management procedure that integrates the objective , discipline , business processes , information and persons . an enterprise planning and performance tracing architecture based kpi is put forward to assuring that during the executive procedure , the enterprise ' s strategy intention is effectively carried out and implemented , which means a closed - loop , continually - improved and self - adaptive operation management system should be set up 中国大多数企业目前所面临的主要问题正是目标不能够得到有效的执行，执行是一个集成了目标、制度、流程、信息与人的经营管理过程，本文提出了一套基于kpi ，具备有效的监控与调整能力的企业经营计划与业绩跟踪的管理流程体系，以闭环的、持续改进的自适应运营管理系统保证执行过程中贯彻企业的战略意图，实现既定的目标；并且将其信息系统相应的纳入企业信息化的整体框架中，成为联系战略规划层和业务操作层的桥梁。
