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在风力发电网侧逆变器动态数学模型基础上 采用空间矢量脉冲宽度调制 SVPWM 方式和电网电压合成矢量定向 实现了电流有功分量和无功分量的解耦及功率因数的可调控制.-Dynamic mathematical model based on wind power grid-side inverter the resultant vector of the vector mode and the grid voltage space vector pulse width modulation direc
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Single-stage grid-connected photovoltaic (PV) systems
have advantages such as simple topology, high efficiency, etc.
However, since all the control objectives such as the maximum
power point tracking (MPPT), synchronizationwith the utility volt
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在MATLAB/Simulink环境中搭建了光伏发电系统模型,其采用最大功率点跟踪(MPPT)控制算法,并加入继电保护逻辑控制模块.通过PSASP的用户程序接口,可将该模型以电流源的形式接入电网模型进行暂态稳定计算.同时提出在电流源并网模式下并网光伏发电系统控制其与电网的无功功率交换为0,因此在潮流计算中可将光伏电站设为PQ节点,并设无功功率为0.CEPRI 36节点系统的仿真结果验证了该模型的正确性,并表明所提模型比常规同步电机二阶经典模型对电网故障的反应更为灵敏,但其对于改善全系统的暂态稳定
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Modeling and Control of a DFIG-Based Wind
Turbine During a Grid Voltage Drop
Doubly-fed induction generators (DFIG) are widely
used in wind energy generation systems. During a grid voltage
drop, performance is degraded with rotor over current
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Active Harmonic Filtering Using Current Controlled Grid-
Connected DG Units with Closed-Loop Power Control
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三相光伏并网逆变器SVPWM电流控制技术研究-Three-phase photovoltaic grid-connected inverter SVPWM current control technology
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In this paper it is presented a detailed descr iption
of the analog implementation of the control for a DC-AC
converter composed by a DC-DC Zeta converter and a low
frequency inverter. Using only analog components, it was
developed the MPPT t
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In this paper, simulation and practical
implementation of direct power control is presented for a PWM
Rectifier application. The proposed DPC control has several
advantages, including the grid current very close to sinusoidal
waveforms (TDH <1
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