Description: 在电网不平衡状态下风力异步发电机的并网分析,给出了不平衡状态下风机模型-Imbalance in the power grid under the induction generator of wind power grid analysis, given the uneven state fan model Platform: |
Size: 476160 |
Author:陈天赐 |
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Description: 针对兆瓦级风电并网逆变器主电路研制中存在的并联扩容、开关频率较低和LCL滤波器难以优化设计等问题，提出了采用交流侧串接电感再进行并联的均流方案，采用载波移相技术提高变流器的等效开关频率，提出了LCL滤波器的设计原则，并给出了上述设计的理论依据和实现方法。通过对2兆瓦风电变流器主电路的仿真验证了上述技术方案。-MW-class wind power for grid-inverter main circuit of the parallel development of existing capacity, a lower switching frequency and LCL filter design difficult to optimize the problem, a series inductor AC side in parallel are further flow program, the use of carrier phase-shifting technology to enhance the equivalent converter switching frequency, a LCL filter design principles, and gives the above-mentioned theoretical basis for the design and implementation. 2 MW of wind power converter main circuit simulation program to verify the above-mentioned technology. Platform: |
Size: 212992 |
Author:cesc |
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Description: 基于PQ解耦法的双馈风力发电机并网潮流计算，主要针对稳态情况下-PQ decoupled method based on doubly-fed wind generator grid power flow calculation, mainly for the steady-state case Platform: |
Size: 22528 |
Author:dw |
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Description: 为满足在电网发生故障时风电机组需保持与电网连接并向系统不间断供电的要求,提出
了双馈风力发电机的动态模型、变流器模型、变流器保护及电网模型,以研究双馈风力发电机的暂
态特性.以1·5MW SUT-1500双馈风力发电机为原型,由一个无穷大电源等效电网模型,变流器模
型采用定子磁链的定向电流矢量控制方法,利用PSCAD软件对双馈电机的暂态特性进行仿真.仿
真结果表明,矢量控制能够实现双馈电机的有功、无功解耦,并可改善系统的低压穿越能力.
-To meet the power failure to keep their wind turbine grid-connected uninterruptible power supply to the system requirements, proposed doubly-fed wind turbine dynamic models of converter model, inverter protection and network model to Study of double-fed wind generator transient characteristics. to 1.5 MW SUT-1500 double-fed wind turbine prototypes, by an infinite power grid equivalent model of converter model uses the stator flux orientation of current vector control methods, using PSCAD software to double-fed motor simulation of transient characteristics. The simulation results show that vector control can be achieved double-fed motor active and reactive decoupling, and can improve the system through the capacity of low-voltage. Platform: |
Size: 619520 |
Author:mengxianghua |
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Description: Wind Turbines with Doubly-Fed Induction
Generator Systems with Improved Performance
due to Grid Requirements Platform: |
Size: 683008 |
Author:dida |
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Description: This report is the conclusion of the post-course work following the Nordic PhD-course on
Wind Power, which was held on Smø la 5th – 11th June 2005. The goal of the project was to
construct a Simulink model of a 2.5 MW wind turbine with direct-driven permanent magnet
generator connected to the grid via a back-to-back three-phase converter. The model was then
to be tested in simulation runs. Platform: |
Size: 153600 |
Author:proust |
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Description: a new circuit topology of a
phase-locked loop that can be used for synchronising a singlephase
wind turbine generator (WTG) with the low voltage utility
grid. The circuit is based on the time-delay digital tanlock loop
(TDTL) architecture and was modelled and simulated using
Simulink/MATLAB. The results presented demonstrate the
ability of the circuit not only to synchronise a WTG with the grid,
but also to re-gain synchronization following a sudden
disturbance in the grid voltage. The simulated disturbances
included a ramp and a multi-step change in the phase of the grid
voltage waveform. Platform: |
Size: 16384 |
Author:Amr |
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Description: The generating systems use Doubly-Fed Induction Generators (DFIGs) to achieve high
conversion efficiency and to reduce the installation cost. This paper presents a modeling and Maximum
Power Point Tracking (MPPT) control method of DFIG-based variable-speed wind energy conversion
system. The generator considered is a wound rotor induction machine whose stator is connected directly
to the grid and the rotor is fed through back-to-back Pulse-Width Modulation (PWM) converters. Stator
flux-oriented vector control is applied to control the active and reactive current loops independently. The
MPPT control method in a Wind Energy Conversion System (WECS) is proposed. The proposed control
solution aims at driving the position of the operating point near to optimality. This is a very important
aspect to maintain DFIGs efficiently in a variable wind speed. The wind generator is modeled in RSCAD
program which is interfaced with the Real Time Digital Simulator (RTDS). Platform: |
Size: 678912 |
Author:menaouer |
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Description: Power flow analysis of a grid connected
PMSG based direct driven wind electric
generator Platform: |
Size: 1858560 |
Author:benkhada |
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Description: This file contains a wind turbine model. It includes a three-dimensional mechanical model of the tower, nacelle, and blades modeled in Simscape Multibody, hydraulic pitch actuators, electrical yaw actuators, a simple generator and electrical grid model. Supporting models show how to develop each of the systems separately and integrate them into the overall model. Platform: |
Size: 2356224 |
Author:subaja
|
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Description: This file contains a wind turbine model. It includes a three-dimensional mechanical model of the tower, nacelle, and blades modeled in Simscape Multibody, hydraulic pitch actuators, electrical yaw actuators, a simple generator and electrical grid model. Supporting models show how to develop each of the systems Platform: |
Size: 3525632 |
Author:subaja
|
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Description: 本程序可以实现的功能是：建立直接驱动风力发电机、单级光伏发电系统和储能电池的风力发电和光伏混合微电网模型。通过平滑蓄电池的输出功率平滑风能和光伏功率来维持PCC的电压。(The function of this program is to establish a hybrid micro grid model of wind power generation and photovoltaic power generation directly driven by wind power generator, single stage photovoltaic power generation system and energy storage battery. The PCC voltage is maintained by smoothing the output power of the battery and smoothing the wind and photovoltaic power.) Platform: |
Size: 47104 |
Author:Teresazjj |
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Description: This file contains a wind turbine model. It includes a three-dimensional mechanical model of the tower, nacelle, and blades modeled in Simscape Multibody, hydraulic pitch actuators, electrical yaw actuators, a simple generator and electrical grid model. Supporting models show how to develop each of the systems separately and integrate them into the overall model. The level of fidelity for each subsystem can be varied as you work through the design. Platform: |
Size: 2384896 |
Author:subaja |
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