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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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This
paper proposes an optimal control strategy for an HVdc light system
using a direct current vector control mechanism. The proposed
approach is compared with the traditional vector control
method for different HVdc control requirements, su
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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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关于风能发电并网的策略研究，双环控制模式内环电流外环电压-Strategy Research on wind power grid, double-loop control mode inner ring current outer loop voltage
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This paper proposes a new and explicitly frequencyadaptive
method for Virtual Flux estimation and voltage sensorless
grid synchronization under unbalanced conditions.
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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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本文研究了一种用于三相电压型并网逆变器的新型直接功率控制策略——预测直接功率控制（Predictive Direct Power Control，简称P-DPC）。重点讨论了P-DPC不同的电压矢量选择原则和电压矢量作用时间的处理方法，以降低低次电流谐波成分，获得更好的动、静态性能。-In this paper, a new direct method for three-phase voltage power grid-connected inverter control strategy-
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In this paper, a new direct method for three-phase voltage power grid-connected inverter control strategy - predictive direct power control (Predictive Direct Power Control, called P-DPC). Focused on the P-DPC different voltage vector selection princ
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In this paper, a new direct method for three-phase voltage power grid-connected inverter control strategy - predictive direct power control (Predictive Direct Power Control, called P-DPC). Focused on the P-DPC different voltage vector selection princ
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The existence of the modules capacitors necessitates the control of their voltage level. A
dedicated controller is described that has two main parts the averaging controller that takes
care of the average capacitor voltage level per leg and the b
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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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