Description: Three level pulse converter is VSI converter used to convert the DC voltage to AC voltage using Sin Pulse Width Modulation technique.-Three level pulse converter is VSI converter used to convert the DC voltage to AC voltage using Sin Pulse Width Modulation technique. Platform: |
Size: 11264 |
Author:sathish |
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Description: 在传统矩阵变换器和多电平逆变器的基础上,提出一种新颖的多电平矩阵变换器,介绍了其拓扑结构和工
作原理.多电平矩阵变换器的能量传递,是通过三相输入电压对中点电容充电到一个恒定直流电压而实现的.选择适
当的控制算法和电容电压,能在变换器的两侧合成低次谐波含量小且波形近似于正弦的可控输入/输出电压.对多电
平矩阵变换器进行建模和仿真,并探讨了其输出能控性.
- On the basis of a conventional matrix converter and a multilevel inverter, a novel multilevel matrix
converter is proposed, and its topology configuration and principle are introduced. This converter operates as a
bidirectional converter and transfers energy between its two sides by charging the midpoint capacitors to a known
constant DC voltage level. Proper selection of control algorithms and capacitor voltages helps synthesize controllable
and waveforms almost sinusoidal three-phases AC voltage with minimum low-order harmonics at both sides of the
converter. The multilevel matrix converter is modeled and simulated with its output controllability discussed.
Platform: |
Size: 46080 |
Author:haha |
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Description: This paper
presents a PSCAD/EMTDC model of PV solar panels, the grid
connected three phase voltage sourced inverter (VSI) and its
controller system. The VSI control is implemented with current
control loops. A maximum power point tracking (MPPT)
algorithm is implemented to get the maximum output power for
any given solar irradiation and temperature. This is integrated
with the inverter control in such a way that the requirement of
DC-DC converter is eliminated to harvest the maximum power.
The inverter model also maintains near unity power factor
regardless of the level of power output and maintains an
acceptable level of current harmonics. Finally, the developed
model is validated with the output of a commercially used PV
module. Platform: |
Size: 355328 |
Author:起个名字真难 |
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Description: Hybrid PV-wind generation shows higher
availability as compared to PV or wind alone. For rural
electrifications, researches are focused on hybrid power system
which provides sustainable power. The variable voltage and
frequency of the self excited induction generator (SEIG) is
rectified through Vienna rectifier (three switches) to the required
D.C voltage level and fed to common D.C bus. The variable output
voltage of PV module is controlled by DC/DC converter using
proposed fuzzy logic controller and fed to common D.C bus. The
DC bus collects the total power from the wind and photovoltaic
system and used to charge the battery as well as to supply the A.C
loads through inverter. A dynamic mathematical model and
MATLAB simulations for the entire scheme is presented. Results
from the simulations and experimental tests bring out the
suitability of the proposed hybrid scheme in remote areas. Platform: |
Size: 48128 |
Author:hareesh |
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Description: 光伏电池模块封装，升压电路，三相逆变，并网-This example shows an average model of a 100-kW array connected to a 25-kV grid via a DC-DC boost converter and a three-phase three-level VSC.
Pierre Giroux, Gilbert Sybille (Hydro-Quebec, IREQ) Carlos Osorio, Shripad Chandrachood (The Mathworks) Platform: |
Size: 67584 |
Author:黄敏 |
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Description: PV array_Grid_IncCondReg_det.mdl is a detailed model of a 100-kW array connected to a 25-kV grid via a DC-DC boost converter and a three-phase three-level Voltage Source Converter (VSC). Maximum Platform: |
Size: 1207296 |
Author:smart soltuion |
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Description: 在传统反激变换器基础上，引入三电平技术，并针对传统反激三电平 DC-DC 变换器电源两端并联的分压电容不均
压的问题，提出了一种交错并联反激式三电平 DC-DC 变换器。该变换器具有电路拓扑简洁，输出只需电容滤波，减小输出滤波器，
提高了变换器功率密度等优点。深入分析了该变换器的工作原理及工作过程，推导了其输入输出关系，和传统的反激两电平变
换器相比，可以得出该并联交错三电平反激变换器能减小输出电容，降低功率开关管电压应力等结论。最后设计了闭环控制策略，
并基于 saber 对电路进行仿真，验证了该拓扑的正确性和输出电容小、功率开关管电压应力低等特点。-This paper, based on the traditional flyback converter, introduces three-level technology, and proposes a Interleaved flyback
three-level DC-DC converter to solve the capacitor voltage divider uneven pressure problems of traditional three-level flyback DC-DC
power converter. The converter has the advantages of simple topology, just capacitor filter output, reducing the output filter, improves
the converter power density, etc. This paper deeply analyzes the working principle and the work process of the converter, derive the
relationship between its input and output. Compared to the traditional two-level flyback converter, the Interleaved flyback three-level DCDC converter can reduce the output capacitance, reduce the power switch voltage stress. Finally design the closed-loop control strateg, and
simulate circuit in saber. Verify the correctness of the topology and output capacitance, power switches and low voltage stress. Platform: |
Size: 1114112 |
Author:mr zhang |
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Description: Two demos illustrate use of SimPowerSystems for modeling a PV array connected to a utility grid.
PVarray_Grid_IncCondReg_det.mdl is a detailed model of a 100-kW array connected to a 25-kV grid via a DC-DC boost converter and a three-phase three-level Voltage Source Converter (VSC). Maximum Power Point Tracking (MPPT) is implemented in the boost converter by means of a Simulink model using the “Incremental Conductance + Integral Regulator” technique.
PVarray_Grid_PandO_avg.mdl is an average model of a 200-kW array connected to a 25-kV grid via two DC-DC boost converters and a single three-phase VSC. The MPPT controller based on the “Perturb and Observe” technique is implemented by means of a MATLAB Function block that generates embeddable C code. Platform: |
Size: 589824 |
Author:Soremekun Nurudeen |
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Description: This paper presents a nonlinear control scheme for back-to-back High Voltage Direct Current (HVDC) system based on feedback linearization control, using three-phase three-level voltage source converter. The design of the proposed nonlinear controller has been performed in a synchronous rotating reference frame (d-q) the aim to provide high dynamic performance, complete decouple control of active and reactive power and to maintain the DC bus voltage at its reference value.
The objective of maintaining balanced voltages in DC-link capacitors is achieved by using the three-level space vector modulation with balancing strategy based on the effective use of the redundant switching states of the converters voltage vectors. Finally, some simulations results are presented and discussed in order to verify and compared the feasibility and effectiveness of the proposed control scheme with the conventional controller (PI).
Platform: |
Size: 1242112 |
Author:zakary |
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Description: 这个例子示出了连接到经由DC-DC升压转换器25千伏电网和三相三电平VSC100千瓦阵列的详细模型。-This example shows a detailed model of a 100-kW array connected to a 25-kV grid via a DC-DC boost converter and a three-phase three-level VSC. Platform: |
Size: 51200 |
Author:bin |
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Description: AC-DC转换器采用三相三电平PWM电压源转换器,通过线性预测算法预测谐波电流在下一个时刻的参考值以实现谐波电流的跟踪-AC-DC converter uses three-phase three-level PWM voltage source converter, through the linear prediction algorithm to predict the harmonic current at the next moment of reference value to achieve harmonic current tracking Platform: |
Size: 18432 |
Author:zhangcheng |
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Description: This example shows an average model of a 100-kW array connected to a 25-kV grid via a DC-DC boost converter and a three-phase three-level VSC Platform: |
Size: 13312 |
Author:mascara |
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Description: 三相模块化多电平换流器，可以实现直流电压到三相电压的逆变，控制方式有两种(Three-phase modular multi-level converter can realize the inversion from DC voltage to three-phase voltage. There are two control modes.) Platform: |
Size: 43008 |
Author:zhaowz17 |
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