Description: Performance at the unity power factor for a 5 bus power system. This is used to investigate the the load flow algorithm developed based on Gauss Seidel method. Platform: |
Size: 1024 |
Author:he Shi Hao |
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Description: 基于单位功率因数控制策略的单相有源滤波，去掉非线性负载部分即为单相全控整流。开关器件采用IGBT。-Based on the unity power factor control strategy of single-phase active power filter, remove the part of non-linear load is the single-phase full-controlled rectifier. Switching device IGBT. Platform: |
Size: 7168 |
Author:雷宾 |
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Description: 基于单位功率因数控制策略的三相全控整流。开关器件采用IGBT。PWM波形产生控制电路里使用的饱和限制模块，就是限制波形的幅度的，对输出直流电压幅值影响很大。-Based on the unity power factor control strategy of three-phase full-controlled rectifier. Switching device IGBT. PWM waveform generator control circuit in the saturation limit the use of modules, is to restrict the range of waveform and amplitude of the output DC voltage impact. Platform: |
Size: 8192 |
Author:雷宾 |
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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: 实现光伏并网，实现单位功率因素并网。基于电压外环与电流内环-Realization of photovoltaic grid to achieve unity power factor and net. Based on voltage loop and current loop Platform: |
Size: 33792 |
Author:qi |
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Description: In modal analysis eigen values have to be found out. with these eigen values participation factor has to be found out.
Modal analysis to be done for a 9bus,39 bus,30 and 14 bus system .Modal analysis with and without connecting a squirrel cage induction generator to the above mentioned systems has to be done. single turbine generator has to be considered first and after that a wind farm with more than 10 turbine generators has to be connected.
2. continuation power flow
In continuation power flow the P-V curve, V-lambda curve, P-lambda curves has to be plotted for unity power factor, a lagging power factor .Lambda being the load parameter. Continuation power flow has to be done for 9 bus ,39 bus,14bus,30bus system. Continuation power flow analysis should be done with and without connecting the squirrel cage induction generator to above systems.single turbine generator has to be considered first and after that a wind farm with more than 10 turbine generators has to be connected
-In modal analysis eigen values have to be found out. with these eigen values participation factor has to be found out.
Modal analysis is to be done for a 9bus,39 bus,30 and 14 bus system .Modal analysis with and without connecting a squirrel cage induction generator to the above mentioned systems has to be done. single turbine generator has to be considered first and after that a wind farm with more than 10 turbine generators has to be connected.
2. continuation power flow
In continuation power flow the P-V curve, V-lambda curve, P-lambda curves has to be plotted for unity power factor, a lagging power factor .Lambda being the load parameter. Continuation power flow has to be done for 9 bus ,39 bus,14bus,30bus system. Continuation power flow analysis should be done with and without connecting the squirrel cage induction generator to above systems.single turbine generator has to be considered first and after that a wind farm with more than 10 turbine generators has to be connected
Platform: |
Size: 30720 |
Author:Ravindran |
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Description: 这是单相全桥MOSFET，整流器，包含了单位功率因数控制和电压稳定-This is a single-phase full-bridge MOSFET, rectifier, including the unity power factor and voltage stability control Platform: |
Size: 12288 |
Author:张文军 |
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Description: Modem brushless permanent magnet synchronous motors
may operate near unity power factor and have a large pull-out
torque for a given frame size Platform: |
Size: 3072 |
Author:Shahab |
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Description: 一个光伏并网单位功率因数并网模型，含有光伏阵列，且是三相逆变并网-A photovoltaic grid-unity power factor and network model, containing the PV array, and is a three-phase inverter grid Platform: |
Size: 43008 |
Author:qi |
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Description: A 50 kW, 380 V, 50 Hz load is connected to a 25 kV, 60 Hz grid through a AC-DC-AC power supply. This power supply consists of two voltage source converters, VSC1 and VSC2, connected through a DC link.
VSC1 connected on 60Hz grid is operating as a rectifier. It regulates the DC link voltage at 680 V and keeps unity power factor on AC grid. The PWM chopping frequency is 1980 Hz.
VSC2 connected on 50 Hz load is operating as an inverter. It generates a 50 Hz frequency and regulates load voltage at 380 Vrms. The PWM chopping frequency is 2000 Hz.
The electrical circuit is discretized at 2 microseconds. The sampling time of the VSC1 and VSC2 control systems is 100 microseconds. Platform: |
Size: 148480 |
Author:aid |
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Description: This paper discusses the impact of using 3-phase and multipules converter circuit commonly found in unity power factor at
input AC mains and regulates output voltage.3-phase thyristor rectifiers have been used in industries for obtaining a variable DC
voltage, but they have a problem of including large lower-order harmonics in the input currents. For high-power applications, a 12-
pulse, 18-pulse and 24-pulse configuration is useful for reducing the harmonics, but it still includes the (np±1) th (n: integer, p: pulse)
harmonics. In this paper present the rectifiers are using the MATLAB/SIMULINK simulation model and several common conditions
will be simulated to compare their harmonic levels. Platform: |
Size: 837632 |
Author:Ashok |
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Description: pwm整流器效果很好，达到单位功率因数整流，可作参考用。-PWM rectifier effect is very good, to achieve unity power factor rectifier, can be used as a reference. Platform: |
Size: 12288 |
Author:崔毅 |
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Description: 提出了一种无电流传感器的三相 PWM 整流器控制策略。系统采用双闭环控制，外环
PI 调节器控制直流侧输出电压，内环通过滞环调节器控制有功功率和无功功率，达到单位功率因
数运行的目的。根据整流器的数学模型通过电流重构可获得网侧电流，以实现无电流传感器控制。
仿真实验证明该方案具有良好的控制性能。-In this paper a current sensorless control strategy of three-phase PWM rectifiers is
presented. Double close-loop control method is applied in the system. DC voltage is regulated by the
external loop PI regulator. The system can operate at unity power factor by controlling the active and
reactive power with two inner loop hysteresis controllers. The input AC current can be reconstructed
the mathematical model of PWM rectifiers in order to eliminating current sensors . The simulation
results prove that the system has good performance. Platform: |
Size: 199680 |
Author:liuyue |
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Description: The active power filters have gained much more attention because of its excellent performance to mitigate the harmonic and reactive power issues. A shunt active power filter with Instantaneous active and reactive power theory (P-Q theory) has been proposed for its performance and ability to compensate the harmonics and reactive power.. It has been investigated through simulations that even under unbalanced and distorted conditions of AC distribution supply voltage and unbalanced loading, shunt active filter is able to produce the unity power factor and mitigate the Total Harmonic Distortion (THD) specified by power quality standards. Matlab/Simulink is used as a simulation tool for analysing. Platform: |
Size: 518144 |
Author:khan |
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Description: Active shult filter is used to operate grid at unity power factor. Solar panels are used to fed grid as well as load. Platform: |
Size: 24576 |
Author:ShubhamSundeep |
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