Matrix converter is an " all silicon " power converter with an advanced circuit topology . it permits frequency conversion in a single - stage processing without the need of large reactive energy storage components , such as dc capacitor <中文摘要> =矩阵式变换器是一种先进拓扑结构的“全硅”功率变换器，它允许频率单级变换，无需大容量的贮能元件。
Based on the urban informatization characteristics and in light of the six elements in china s national informatization and two clues in the informatization of principal parts , we have raised the tiered matrix framework for the capital information work 根据城市信息化的特点，借鉴中国国家信息化六要素和主体信息化两条线索，我们提出了首都城市信息化的矩阵式分层框架模型
The framework and managing pattern of conventional enterprises have already not adapted to the modern management , so we came up with a framework between cooperative enterprises combining with the idea of matrix organizational structure in project management 传统企业内的组织结构管理模式已经不适合现代化的管理，结合项目管理的矩阵式组织管理的思想，我们提出了一种协作企业之间的组织结构模式。
Spindle flowmeter , a new type of differential pressure flowmeter , is used as the sensor of flow measurement . and aiming for a small and intelligent design , we use the mcu named sst89e564rd as the main controller , the leds and the keyboard as the user interface 本着小型化、智能化的原则,该积算仪采用sst公司的微控制器sst89e564rd作为控制核心,并设计了由数码管和矩阵式键盘组成的人机对话接口。
This model was composed of a tracking process model based on activity network diagram and multi sub closed loop processes , a boolean matrix description model of tracking sections and associations among sections , a matrix style organization structure and a quality problem driven organization model 该模型包含基于活动网络图的多个闭环子过程的追踪过程模型、追踪过程节点及节点间联系的布尔矩阵描述模型，以及矩阵式的管理组织结构和以质量问题为驱动的组织模型。
The management of projects of two directing route makes the connection of general director and general designer clearly , but it cannot construct the structure of the organize and it is not beneficial to the management of projects . now it is mature to practice item management of projects and the management form of matrix structure is very suitable 两条指挥线的型号管理，理顺了型号总指挥与总设计师的关系，明确了责任制，但并没有构建两条指挥线的组织结构，不利于型号管理，在现实条件下，航天型号研制实行项目管理的条件已经成熟，建立矩阵式结构的项目管理最为合适。
This paper introduces the general design method of soc ( system on a chip ) using eda tools , gives some cases of ip , then implement a real system on epm7128slc84 - 15 , a chip of altera company , this system including : scan and recognition of matrix keyboard , calculation of add , sutu multiply under the control of state machine , the display of result on computer screen 本文首先介绍了用eda工具设计片上系统的一般方法，给出了几个ip ，然后在altera公司的芯片epm7128slc84 - 15上实现了一个soc实例，该实例包括：对矩阵式键盘的扫描、识别，在状态机控制下进行加、减、乘法运算，以及结果在计算机屏幕的显示。
Then it illustrates the epc function , strong financing ability , advanced technics and engineering technology , global sales net and procurement net , designing as main body , and other main characteristics of international engineering companies . comments on designing , procurement , construction and running services are also included . characteristics of the responsibility system of site managers , triangular management , epc whole process system management , applying bcwp principle to manage projects are analyzed and anatomised as well 其次，本文对国际型工程公司产生过程、主要特点、组织结构等进行了实证分析；对国际型工程公司所具有的epc全功能、较强的融资能力、先进的工艺技术和工程技术、全球营销网和采购网、以设计为主体等主要特点进行了论述；对国际型工程公司设计、采购、施工、开车服务进行了评述；并侧重对国际型工程公司实行项目经理负责制、矩阵式管理、 epc全过程系统管理、运用赢得值原理进行项目管理的特点进行了剖析研究。
So there are good prospects for alternating current excitation generators . in this thesis , the operation principle of aceg and the excitation control strategy based on dynamical synchronous reference frame are analyzed , the simulation models of the generator and excitation controller are established based on the saber simulator . according to the requirement of aceg , the converter should have regeneration capability , and the input and output currents of converter should be sinusoidal 由于交流励磁发电机既可能运行于励磁系统向电机转子方输入电功率，也可能运行于励磁系统将转子方输出的电功率回馈给电网，根据交流励磁发电机系统对励磁变频器功率双向流动及变频器输入和输出电流谐波含量少、谐波幅值小的要求，本文提出采用输入和输出性能优良的矩阵式交-交变频器作为励磁电源。
According to the space vector modulation method of the equivalent structure of the ac - dc - ac transformation , the transformation relations of the matrix converter are deeply investigated . the ac - ac direct conversion control and the double - space - vector pwm scheme of the matrix converter are deduced , the four - step current commutation strategy of matrix converter is expatiated , the design method of input filter and over voltage protection circuit is analyzed , and the modeling and simulation of a three - phase matrix converter are implemented 从等效交-直-交变换的空间矢量调制方法出发，深入分析了矩阵式变频器的变换关系，导出了交-交直接变换控制规律和双空间矢量脉宽调制技术，阐述了矩阵式变频器的换流控制策略，分析了输入滤波器和过电压保护电路的设计方法，实现了矩阵式变频器的建模和运行分析。
