上面的是初始相位和频率，下面的是调节器里面的PID参数。 模块计算初始相位和频率与实际输入的差值，通过...
上面的是初始相位和频率，下面的是调节器里面的PID参数。模块计算初始相位和频率与实际输入的差值，通过PID调节计算，最后输出尽量靠近实际值。也就是说，初始相位和频率与实际的相同最好，不相同则需要进行PID调节，有一个收敛的过程。这个过程的长短与PID参数和初始状态有关。
环路滤波器Loop_filter则是我认为在PLL的设计中最难理解的一部分,主要的作用是将Phase_detect输出的误差信号和VCO的电压控制信号建立联系,达到控制整个环路的作用,相比滤波的作用,其更重要的作用在环路的控制,需要根据整个系统的传输函数来进行设计。在大致了解了PLL的构成后,我们再来根据实例看看symbol_timing_PLL的作用...
A new single-phase PLL and active islanding detection algorithm was also proposed for system-level operation in order to meet IEEE standard 1547. The resulting control structure is very simple and presents robust, low transient responses even for extreme load steps between noload and heavy-load ...
PLL is a non-linear closed-loop control system that requires adequate gain parameter design trade-off to provide accurate grid synchronization. Additionally, it creates interdependent loops while estimating the grid frequency and phase-angle. This results in unwanted frequency disturbances during grid ...
APhase-FrequencyDetectorandaChargePumpDesignforPLLApplicationsSinisaMilicevicandLeonardMacEachernCarletonUniversity,DepartmentofElectronics ..
英文缩写 PLL 英文全称Phase Locked Logic 中文解释相同步逻辑 缩写分类电子电工, AA图形保真,消除混叠现象 AA核准当局(特指有权批准军事法庭判决的司令官) AA访问授权 AA现役军人 AA自适应[自调谐]天线阵 AA算术平均数 AA自动进场 AA(=acetonylamine)氨基丙酮,丙酮基胺 ...
Using PLL, first, the instantaneous phase of the grid voltage fundamental component is estimated. This can then be used as the unit template for the reference voltage. By multiplying the unit template with the desired amplitude, the actual reference grid voltage can be calculated. In this study...
Aiming to overcoming the drawbacks of the traditional predictive controller, a scheme for improving the robustness of inverter system is proposed along with a dual-timer control strategy and a software phase-lock-loop (PLL). The controller is designed not only to minimize the control error ...
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