逆的

Then analyzed has compared the contravariant controller control strategy, in established in the SPWM inversion linearization model foundation to analyze the necessity which double-circle controlled, and in controlled in the link to introduce the PID adjustment, enhanced the control the dynamic response ability and the system stability, enhanced the power source the load compatibility and the output stability.

接着分析比较了逆变控制器的控制策略，在建立了SPWM逆变器的线性化模型基础上分析了双环控制的必要性，并在控制环节中引入PID调节，来提高控制的动态响应能力和系统的稳定性，以提高逆变电源的负载适应性和输出的稳定性。

In this paper, taking the downward continuation of potential field as an inverse problem of upward continuation, we obtain a convolution type linear integral equation for downward continuation. Making use of the orthogonal symmetry characteristic of Fourier transform matrix, and combining the principles of singular value decomposition of matrix and generalized inverse, we proposed a stable generalized inverse method for downward continuation of potential field, called wavenumber domain generalized inverse algorithm, which doesn't need the computation for inverse matrix. It resolves the instability of potential field downward continuation of large depth.

本文通过把位场向下延拓视为向上延拓的反问题，得到向下延拓的褶积型线性积分方程，再利用Fourier变换矩阵的正交对称特性，并结合矩阵的奇异值分解和广义逆原理，提出了一种稳定的不需要进行求逆运算的位场向下延拓广义逆方法——波数域广义逆算法，解决了位场大深度向下延拓的不稳定性问题。

By the means of theory, simulation and experiment, the second part of this paper is then analyzed which is on the equivalent output resistance and inductance of the selected inverter and the effect to the output voltage"s amplitude and phase caused by the different values of the inverter"s component. It is concluded that by selecting certain precision level components, the difference of the output voltage amplitude is much greater than that of the output voltage phase.

其次通过理论、仿真和实验分析了本文所采用的电压电流双闭环瞬时控制方式逆变器的等效输出阻抗和两台逆变器器件差异对输出电压的幅值差和相位差的影响，从而得出选用一定精度的器件，两台逆变器输出电压的幅值差比相位差大得多的结论。

Presents the design of longitudinal control for ASTOVL lift-fan aircraft, a multi-variable, strong-coupling, complicated nonlinear system to make the system nonlinear offset and decouple, and the method used for linear system in designing the system to gain expectant flying qualities and the combination of aerodynamic control surfaces with thrust vectors to delay the control surfaces getting into saturation, and the minimum N-norm generalized inverse theorem of weighted generalized inverse adopted to apportion the moments commands, which make the control surfaces gain appropriate deflection and the simulation results to verify the dynamic inverse control laws designed really make the system nonlinear offset and decouple; when one command is given, only this output will response, and others do not response; when all commands are given together, the responses will be just the linear superpose of the response of each command, therefore the operation of the pilot will be simplified greatly.

摘 要： ASTOVL升力风扇飞机是多变量、强耦合、复杂的非线性系统，采用非线性动态逆理论设计控制律以实现系统的非线性对消及解耦，然后，采用线性系统的设计方法对系统进行设计，以使系统获得期望的飞行品质。同时，考虑到ASTOVL升力风扇飞机是由气动舵面和推力矢量融合作用的，为了延缓各舵面进入饱和的时间，采用加权广义逆中的极小N-范数广义逆定理分配力矩指令，从而使各舵面达到适当的偏转角。并将所设计的控制律进行了仿真，结果验证了所设计的动态逆控制律使系统实现了非线性对消和解耦，单个指令作用时，只有该项响应，其余不受影响；所有指令作用时，其结果就等于单个指令作用时的线性叠加，这样使驾驶员的操纵大大简化而易于控制，从而大大降低了飞行事故率。

A detailed analysis of the main circuit introduction, control method and working principle of the direct-drive wind energy conversion system are given to introduce the two important parts a of this paper: First part is the control method of the multiple boost convertor, the important instantaneous current control method of this paper is given through the analysis of the main circuit structure, control method and working principle. Then a steady-state analysis for low-frequency, a high-frequency component analysis, and a closed-loop tracking performance analysis for dynamic response are provided to analyze the method proposed; And the second part is the control method of invertor.

在系统变流器整体结构分析的基础上，引出本文重点研究的两个变流环节的控制：第一部分是系统升压斩波器的控制，通过分析相关主电路结构、原理，建立了数学模型，引出本文重点研究的瞬时值控制策略的概念和具体实现，并对升压斩波器的瞬时值控制策略进行了详细的高频、低频模型分析和稳态、动态性能分析；第二部分是系统并网逆变器的控制，通过对逆变器主电路的数学建模和控制要求分析，研究了并网逆变器的瞬时值控制策略，包括电感电流控制内环和直流电压控制外环的具体设计和实现方法。

The method comprises the steps: S402: an inverse process multiplexing for a terminal to transmit channels; S404: CRC verifies a statistical module and judges whether CRC verified calculation in the inverse process is right and after relevant processing is taken according to the results of the judgment, the right circumstances in the CRC verification in the reverse process are added up; S406: the terminal outputs the link quality of the transmission channels according to the stastical results of the verified statistical module in the CRC; S408: RNC sends out request message for counting, and the terminal makes response to the counting in pre-set conditions and feedbacks the link quality of the transmission channels; S410: after receiving the counting response of the preset quantity, the RNC counts the link quality given feedback by the terminal and confirms whether to regulate power allocation of the signal channel loading MBMS according to the statistical results.

本发明提供了一种采用外码增强技术反馈链路质量的功率分配调整方法包括：S402，终端进行传输信道复用的逆过程；S404，CRC校验统计模块判断逆过程中的CRC校验计算是否正确，并且在根据判断结果进行相关处理后，统计逆过程中CRC校验的正确情况；S406，终端根据CRC校验统计模块的统计结果输出传输信道的链路质量；S408，RNC发送计数过程请求消息，并且终端在预定条件下响应计数，并反馈传输信道的链路质量；S410，RNC在接收到预定数量的计数响应后，统计终端反馈的链路质量，并根据统计结果确定是否调整承载MBMS的信道的功率分配。

Methods: The methods of document arrangement were used in this study, First of all, from the source of "Inner Canon of Huangdi" in the meaning of Jueni syndrome, the mechanism of the formation of Jue syndrome, Jue syndrome of the classification system described; and then flow from the source, Jueni syndrome are classified according to the difference of cold and heat, asthenia and sthenia in "Treatise on Febrile Diseases", and summarize the treatment of the different methods, Combining with the modern case that treating Jueni syndrome with Zhongjing\' prescription.

方法本课题研究采取文献整理的方法，首先从源头上对《内经》中厥逆证的含义，厥证形成的机理，厥证的分类进行了系统的阐述；然后由源及流的将《伤寒论》中论述(来源：AB68C论文网www.abclunwen.com)厥证的诸多条文，根据寒热虚实的不同，将厥逆证进行分类，总结出厥证的不同治法，并结合现代运用仲景方治疗厥逆证的验案，挖掘仲景辨治厥证的证治规律，反映仲景治疗厥证的特色。

Combined with some problems in debugging, it puts most emphases on the factors which affect the efficiency of inverter; does some simulation and experiments analysis and gets a lot useful results. The paper gets a serious of significant results on how to improve efficiency of inverter such as the choice of switch parts, the choice of parameters of transformer design, and the adjustment of syntony capacitance and loop inductance, which offers better measures for later design of inverters under field operation conditions.

结合调试过程中的问题，重点对影响逆变电源效率的各种因素进行了仿真和实验分析，得出了许多有益的结果，获得了一系列关于电源开关器件的选择、变压器设计参数和绕制方法的选择、软开关电路中谐振电容和电感的调节等对逆变电源效率的提高有显著作用的结论，为下一步野战条件下逆变电源的设计提供了较好的依据。

according to the users′ actually demand for uninterruptible power supply for loads,the internal structure of digital generator is analysed and the reason for its uninterruptible function can′t be achieved.a design of the uninterrupted power supply system which transformed from the digital generator is proposed.the system uses the inverter of generators,ac through inverter for loads,at the same time,charges the battery as ac is normal.inverter the battery dc converters to ac for load,meanwhile,starting generator,when power failure.the system applies uninterruptible power for load,whether the ac is normal or abnormal,and design voltage and frequency stabilization,output zero-interrupted,battery charging and discharging management.without requiring purchase an uninterruptible power supply separately,this design can avoid duplication of investment and wasting of resources.

快速安全提高汽轮发电机转子检修质量。。。摘要：针对用户对负载供电不间断的实际需求，分析了数码发电机的内部结构及其不能实现供电的不间断性能的原因，提出一种由数码发电机改造组成的交流不间断供电系统的设计方法。该设计利用发电机内部的逆变器，在市电正常时，由市电经过逆变器给负载供电，同时给蓄电池充电；在市电断电时，一边启动发电机，一边由蓄电池的直流电通过逆变器转换成交流电供负载使用，实现无论市电正常还是异常，系统对负载提供不间断电源。设计对市电进行稳压、稳频、输出零切换、蓄电池的充放电管理等新功能。此设计无需单独购买不间断电源，避免重复投资和资源浪费。

Based on the field study of fault outcrops and landform deformations ,combining with TL and 14C ages,it is concluded that the north marginal fault of the Yumu mountain is a thrust with left-lateral slipping and the east marginal fault is a thrust with right-lateral slipping,and the Yumu Mountain developed from the resulting uplifting of the Yumu Mountain block along these faults.

根据野外断层露头和地貌体的变形测量和分析，本文认为榆木山北缘断层是一条具有左旋位移的逆断层，东缘断层是一条具有右旋位移的逆断层，这两条断层在全新世期间都有明显的活动。榆木山的发育是沿着北缘断层和东缘断层的逆活动，造成山体内地块叠加变形的结果。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。