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[Software EngineeringShoot_src

Description: 桌面发泄小程序,实现窗口客户区变化,win32声音文件等功能-Desktop vent small program changes to achieve the window client area, win32 sound files and other functions
Platform: | Size: 76800 | Author: Brest Zhao | Hits:

[Software Engineering1

Description: 《Z源逆变器光伏并网系统模型及电路参数设计》 摘要:建立了Z 源逆变器光伏并网系统的小信号模型,定量分析了光伏模块输出电压动态性能与主电路各参数间的 关系。光伏模块输出电压的最大功率点跟踪(MPPT)控制与系统采样平均周期关系密切,而采样平均周期又受主电路 无源元件参数大小的影响。定量分析小信号模型建立了各部分之间的传递函数,这对选择MPPT 控制采样平均周期 和主电路参数优化设计起到了关键性指导作用。实验证明了理论分析的正确性和该模型的实用性。 关键词:逆变器/ 分布式发电; 光伏模块; 最大功率点跟踪; 小信号建模-Modeling of Z-source Inverter Photovoltaic System and its Main Circuit Design TIAN Guo-sheng1, TIAN Yan-bing2, DING Xin-ping2, ZHANG Min2 (1.Liaoning Technical University, Huludao 125105, China; 2.Qingdao Technological University, Qingdao 266520, China) Abstract:This paper focus on the small-signal modeling of the Z-source inverter (ZSI) photovoltaic generation system and its main circuit design.The small-signal modeling of ZSI photovoltaic generation system is set up,and the transfer functions of the input voltage-to-shoot-through duty cycle and capacitor voltage-to-control are analyzed.The sample average period plays an important role in photovoltaic generation maximum power point tracking (MPPT) control,while it is influenced by main circuit parameters including input capacitor,Z-source network capacitors and inductors.Thus,the quantitative analysis in those parameters is the design guideline for the main circuit and sample average period.The experiment carried on prototype
Platform: | Size: 212992 | Author: 赵刚 | Hits:

[File Formatuntitled

Description: In order to reduce the volume and cost of the Z-source network, we need to eliminate the low-frequency current ripple by using a constant shoot-through duty ratio
Platform: | Size: 15360 | Author: azad | Hits:

[Software EngineeringZ_juzhen

Description: :针对传统矩阵变换器存在电压传输比低和输出性能易 受非正常输入影响的两个固有缺陷,提出一种Z–源双级矩 阵变换器(Z-source two-stage matrix converter,ZSTSMC)及 其调制方法。利用Z–源网络的升压特性以提高电压传输比, 通过Z–源网络电容电压闭环对直通因子进行自适应地调 节,从而有效抑制非正常输入对输出性能的影响。闭环控制 中采用一种非线性PID 算法,削弱了Z–源网络表现出的非 最小相位特性带来的不良影响,提高了系统动态性能和抗扰 能力。仿真和实验验证了该拓扑的可行性和正确性。-A novel Z-source two-stage matrix converter (ZSTSMC) and its modulation strategy were proposed to overcome two main drawbacks of conventional matrix converters, i.e., low voltage transfer ratio and low immunity to abnormal input voltages. The Boost voltage characteristics of Z-source network was introduced to improve the voltage transfer ratio. The shoot-through index was adaptively controlled by Z-source capacitor voltage closed-loop, so as to be immune to the disturbance of abnormal input voltages. The nonlinear PID controller was employed to eliminate effects caused by non-minimum-phase characteristic presented in Z-source network and to improve the dynamic performance and robustness of the system. Finally, the validity and feasibility of this topology were verified by simulation and experiment results.
Platform: | Size: 903168 | Author: starcool | Hits:

[3D GraphicDemo2三维桌球

Description: 鼠标移动/输入推荐。 鼠标行为是: *环顾四周 - > Hold-Move左键 瞄准并环顾四周。 - > Hold-Move鼠标右键 *增加/减少射击威力(瞄准时) - > Hold-Move向前/向后鼠标右键 *拍摄 - >释放鼠标右键 *放大/缩小 - > Hold-Move向前/向后鼠标中键 主要输入如下: * Rotate-left: a或keypadleft。 * Rotate-right: d或keypadright。 *放大w或按键。 *缩小s或键盘向下。 *提升:z x *下: *切换拍摄模式空间。 *增加射击功率g。 *减少射击功率f。 *拍摄t *切换激光目标l。 * esc退出(Mouse movement/input is recommended. The mouse behaviours are: * Look around -> Hold-Move Left-Mouse-button * Aim and look around -> Hold-Move Right-Mouse-button * Increase/Decrease power of shot (while aiming) -> Hold-Move forward/backward Right-Mouse-button * Shoot -> Release Right-Mouse-button * Zoom in/out -> Hold-Move forward/backward Middle-Mouse-button Key input is as follows: * Rotate-left: A or Keypad-Left * Rotate-right: D or Keypad-Right * Zoom in W or Keypad-Up * Zoom out S or Keypad-Down * Ascend: Z * Descend: X * Toggle shoot mode space * Increase shot power G * Decrease shot power F * Shoot T * Toggle laser aim L * Exit ESC)
Platform: | Size: 8961024 | Author: 从夫一但 | Hits:

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