Description: 这是一个电力系统无功优化的MATLAB程序，在MATLAB7上已调试通过，其实例节点有点少，可对其进行改进-This is a reactive power optimization of MATLAB procedures have been debug MATLAB7 passed, the example of a little less nodes may improve their Platform: |
Size: 17408 |
Author:mays |
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Description: SVC无功补偿控制系统项目介绍，希望对大家有用-SVC control system for reactive power compensation projects introduction Platform: |
Size: 14599168 |
Author:白维东 |
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Description: 介绍了交流励磁变速恒频双馈风力发电机组的工作原理,从双馈发电机的数学模型出发,采用矢量控制技术,在
Matlab /Simulink环境下建立了系统模型,进行了发电机有功无功独立调节的仿真研究。研究结果表明变速恒频双馈风力发电
机组具有良好的动态特性,并为风力发电系统的进一步应用研究提供了可靠的理论依据.-Introduced the AC-excited doubly-fed VSCF wind turbine working principle, from the doubly-fed generator mathematical model, the use of vector control technology, in the Matlab/Simulink environment to establish a system model for the generator active and reactive power independently Simulation of regulation. The results show that the doubly-fed VSCF wind turbine has a good dynamic characteristics and wind power generation system for further applied research to provide a reliable theoretical basis. Platform: |
Size: 502784 |
Author:朱珠 |
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Description: Matlab Simulink file for simulating a grid-tie three phase spwm inverter with active and reactive power control. Platform: |
Size: 20480 |
Author:anvargas |
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Description: 单级倒立摆LQR控制仿真 最优控制理论主要通过对性能的优化寻找可以使目标极小的控制器-Inverted Pendulum Control Simulation of LQR optimal control theory, mainly through the optimization of the performance objectives can find a very small controller Platform: |
Size: 1024 |
Author:杨波 |
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Description: 基于瞬时无功功率理论、滞环电流控制的三相电力有源滤波器Matlab仿真模型-The model of APF is established by the Power System of Matlab.The calculation of harmonic current based on three-phase instantaneous reactive power theory and hysteresis current tracking control strategy are analyzed. Platform: |
Size: 460800 |
Author:赵峰 |
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Description: In this paper Static Synchronous Compensator
(STATCOM) is used for voltage stability and the
compensation of reactive power. The STATCOM contains an
Insulated Gate Bipolar Transistor (IGBT) based voltage
source converter for voltage control and reactive power
compensation. The STATCOM is used to control the reactive
power with the voltage source converter in combination with a
DC voltage source. The values of the DC link capacitor and
battery source were optimized using the Genetic Algorithm
technique and the simulations results for the same were
observed under the inductive as well as capacitive load
conditions. The comparison of voltage compensation for
various conditions show that the performance of STATCOM
tuned with GA was the best and closest to the nominal value of
voltage. The simulation is done in MATLAB for STATCOM
and Voltage Source Converter (VSC). Platform: |
Size: 391168 |
Author:alok |
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Description: 程序为改进的遗传算法对配电网无功优化补偿问题。电力系统配电网的无功优化规划是保证配电网安全、经济运行的一项有效手段，是降低网损、提高电压质量的重要措施。-Reactive power optimization is one of the most important control methods to ensure power system operation securely and economically,and an effective measure to improve the voltage quality and reduce the power loss.Study on reactive power optimization has the great significance in theory and practical application. Transmission network optimal planning problem is a nonlinear，large scale combinatorial optimization problem. Platform: |
Size: 8192 |
Author:徐正 |
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Description: 首先提出了基于微分几何控制理论的双馈发电机非线性多输入多输
状态反馈解藕控制方案，通过非线性坐标变换和非线性状态反馈，使双
发电机的磁链和转速两个子系统实现了动态完全解藕。其次采用基于定
磁场定向的双馈发电机矢量控制，实现定子侧有功功率和无功功率的解藕
为了消除交叉藕合电动势对发电机参数的影响，采用内模控制解藕控制
案，使系统具有良好的输出动态性能。最后在分析双馈发电机的数学模
和矢量控制的基础上，提出了一种基于模型参考自适应方法的定子、转
磁链观测、发电机转速估计和转子电阻辨识算法，应用Lyapunov原理证
了估计的收敛性，并应用于上述解藕控制方案中。在对算法进行理论推
的基础上，应用Matlab/simulink，对各个算法和系统进行了仿真，检验了
算法和控制方案的可行性。
-First proposed nonlinear multi-input multi-input state feedback the decoupled control programs through nonlinear coordinate transformation and nonlinear state feedback control theory based on differential geometry doubly-fed generator, dual generator flux and speed sub-systems to achieve the dynamic completely decoupled. Secondly, based on the fixed magnetic field oriented vector control of doubly-fed generator stator side active power and reactive power decoupling in order to eliminate the cross-coupling of the electromotive force of the generator parameters using the internal model control decoupling control case, so that the system which has good dynamic performance. Finally, in the analysis of the doubly-fed generator based on the mathematical model, and vector control, a method based on the model reference adaptive stator, turn flux observer, generator speed estimation and rotor resistance identification algorithm using the Lyapunov principle permit estimated convergence, and appl Platform: |
Size: 6056960 |
Author:zhangjie |
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Description: 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性作用不大.-Built in MATLAB/Simulink environment, the photovoltaic power generation system model, which uses maximum power point tracking (MPPT) control algorithm and adding relay logic control module via the user program interface PSASP of the model can be in the form of a current source connected to the grid computing model for transient stability, while raised in the current source and network mode and grid-connected PV systems control the reactive power exchange with the grid is zero, so the flow calculation of photovoltaic power plants can be set to PQ node, reactive power and set the simulation results 0.CEPRI 36 node system to verify the correctness of the model and show that the proposed model is more sensitive than conventional synchronous motor response of the second-order classical model of grid failure, but the whole to improve transient stability is not the role of the system. Platform: |
Size: 1011712 |
Author:李雷 |
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Description: SVG无功发生器的matlab仿真，采用PI解耦控制。基于matlab 2014a编写。-SVG simulation of MATLAB reactive power generator, using PI decoupling control. Based on 2014a matlab. Platform: |
Size: 27648 |
Author:郝正强 |
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Description: This paper deals with the design and implementation of
a multilevel voltage source converter based static synchronous
compensator (STATCOM) employing an effective modulation
control technique simulated in a MATLAB Simulink
environment. The main objective of this paper is to maintain the
voltage stability by compensating the reactive power in the power
system. Hence, a new efficient control strategy is proposed, in
order to reduce the voltage fluctuations like sag and swell
conditions and also to isolate current and voltage harmonics in
the transmission system. The multilevel STATCOM which can be
used at the point of common coupling (PC C), for improving
power quality is modelled and simulated using proposed control
strategy and the performance is compared by applying it to an
llOkv line with and without STATCOM. Relative Harmonic
analysis is also discussed in this paper based on the total
harmonic distortion (THD) calculations. Platform: |
Size: 35840 |
Author:hareesh |
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Description: Grid-connected distributed generation sources interfaced
with voltage source inverters (VSIs) need to be disconnected
the grid under: 1) excessive dc-link voltage 2) excessive ac
currents and 3) loss of grid-voltage synchronization. In this paper,
the control of single- and two-stage grid-connected VSIs in photovoltaic
(PV) power plants is developed to address the issue of
inverter disconnecting under various grid faults. Inverter control
incorporates reactive power support in the case of voltage sags
based on the grid codes’ (GCs) requirements to ride-through the
faults and support the grid voltages. A case study of a 1-MW
system simulated in MATLAB/Simulink software is used to illustrate
the proposed control. Problems that may occur during grid
faults along with associated remedies are discussed. The results
presented illustrate the capability of the system to ride-through
different types of grid faults.-Grid-connected distributed generation sources interfaced
with voltage source inverters (VSIs) need to be disconnected
the grid under: 1) excessive dc-link voltage 2) excessive ac
currents and 3) loss of grid-voltage synchronization. In this paper,
the control of single- and two-stage grid-connected VSIs in photovoltaic
(PV) power plants is developed to address the issue of
inverter disconnecting under various grid faults. Inverter control
incorporates reactive power support in the case of voltage sags
based on the grid codes’ (GCs) requirements to ride-through the
faults and support the grid voltages. A case study of a 1-MW
system simulated in MATLAB/Simulink software is used to illustrate
the proposed control. Problems that may occur during grid
faults along with associated remedies are discussed. The results
presented illustrate the capability of the system to ride-through
different types of grid faults. Platform: |
Size: 38912 |
Author:hari |
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Description: 该文件是有源电力滤波器的仿真模型，是在MATLAB环境下做的。实测好用。模型中使用了瞬时无功功率理论，滞环控制和电容电压控制-The file is the active power filter simulation model which is in the matlab environment. It is useful.Instantaneous reactive power theory, hysteresis control and the capacitor voltage control is used in the model. Platform: |
Size: 17408 |
Author:ll |
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Description: A control algorithm for a three-phase hybrid power filter is proposed. It is constituted by a series active filter and a passive
filter connected in parallel with the load. The control strategy is based on the vectorial theory dual formulation of instantaneous
reactive power, so that the voltage waveform injected by the active
filter is able to compensate the reactive power and the load current
harmonics and to balance asymmetrical loads. The proposed algorithm also improves the behavior of the passive filter. Simulationshave been carried out on the MATLAB-Simulink platformwith different loads and with variation in the source impedance.This analysis allowed an experimental prototype to be developed.
Experimental and simulation results are presented. Platform: |
Size: 1004544 |
Author:khan |
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Description: Abstract:
Voltage and reactive power control is a fundamental issue in all-electric shipboard power systems (SPS). However, coordination between generation and propulsion management to match reactive power is poor in current SPS designs. This paper presents a new model predictive control based dynamic Volt/Var control scheme to control the voltage in the system. This method uses a dynamic model of the sources and loads and finds the optimal reactive control inputs to the system to minimize the voltage deviations in the future. Since this method uses prediction of the reactive demand of pulsed loads, it is able to achieve a smooth voltage profile in the SPS in presence of pulsed power loads. This method is also able to control voltage of the system during propulsion motor startup. The controller is tested in presence of high power pulsed loads in the system. Platform: |
Size: 14336 |
Author:Try Wahyudi |
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Description: The amplitude and phase angle of the converter ac output voltage can be controlled simultaneously to achieve rapid and independent control of active and reactive power in all four quadrants. The control of active and reactive power is bidirectional and continuous across the operating range. For active power balance, one of the converters operates on dc voltage control and the other converter is on active power control Platform: |
Size: 53248 |
Author:indra17 |
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Description: 下垂控制就是选择与传统发电机相似的频率一次下垂特性曲线（Droop Character）作为微源的控制方式，即分别通过P/f下垂控制和Q/V下垂控制来获取稳定的频率和电压，这种控制方法对微网中的微源输出的有功功率和无功功率分别进行控制，无需机组间的通信协调，实现了微源即插即用和对等控制的目标，保证了孤岛下微电网内电力平衡和频率的统一，具有简单可靠的特点(Droop control is to choose Droop Character, which is similar to the traditional generator, as the control mode of micro-source, that is, to obtain stable frequency and voltage through P/f droop control and Q/V droop control respectively. This control method controls active power and reactive power of micro-source output in micro-grid separately, without communication coordination between units. The goal of micro-source plug-and-play and peer-to-peer control is realized, which ensures the unification of power balance and frequency in the micro-grid under isolated islands, and has the characteristics of simplicity and reliability.) Platform: |
Size: 45056 |
Author:drfxxq |
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