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中频感应加热以其加热效率高、速度快,可控性好及易于实现机械化、自动化等优点,已在熔炼、铸造、弯管、热锻、焊接和表面热处理等行业得到广泛的应用。
本设计根据设计任务进行了方案设计,设计了相应的硬件电路,研制了20KW中频感应加热电源。
本设计中感应加热电源采用IGBT作为开关器件,可工作在10 Hz~10 kHz频段。它由整流器、滤波器、和逆变器组成。整流器采用不可控三相全桥式整流电路。滤波器采用两个电解电容和一个电感组成Ⅱ型滤波器滤波和无源功率因数校正。逆变器主要由PWM控制器SG352
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1、基于Ip/Iq方法控制PWM整流器,实现有功无功解耦控制,实现直流电容的稳压控制。
2、分别采用滞环电流和电压空间矢量技术进行PWM调制
3、DSTATCOM无功补偿仿真验证
4、系统采用了在带有前馈解耦控制的基础上产生的电压电流双闭环控制结构,其中电压外环保证了稳定的直流输出,电流内环提高了电流的动态响应速度,并且这种控制方法使电流的相位和输入电压的相位保持一致。-1, based on Ip/Iq way to control the PWM rectifier to
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Methods for limitation and elimination of disturbances and harmonic pollution in the power system have been widely investigated. This problem rapidly intensifies with the increasing amount of electronic equipment (computers, radio set, printers, TV
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current closed loop pwm rectifier which work in open loop for traction systems.matlab simulink modal is aasigned with it.
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pwm rectifier which work in open loop for traction systems.matlab simulink modal is aasigned with it.
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Dq frame pwm rectifier which work in open loop for traction systems.matlab simulink modal is aasigned with it.
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voltage and current control loop pwm rectifier which work in open loop for traction systems.matlab simulink modal is aasigned with it.
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mathmatical average model of pwm rectifier with dq controllerpwm rectifier which work in open loop for traction systems.matlab simulink modal is aasigned with it.
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PDF files for pwm rectifier with LC filter
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PWM发生器模型,给做逆变整流电路的一点方便,全部都是用模块搭建的-PWM generator model, to make the point easy inverter rectifier circuit, all built with the modules
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带有电网电压反馈的单相PWM整流器反馈,输出的波形很好,适合初学者学习观摩-With power grid voltage feedback single-phase PWM rectifier feedback, the output waveform is very good, suitable for beginners learning view
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its an rectifier circuit with PWM PI control technique for high accuracy and better output with very low THD.
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MATLAB仿真三相pwm整流控制策略,与SVPWM控制策略不同-MATLAB simulation of three-phase rectifier pwm control strategy, with different control strategies SVPWM
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自己编的,用两电平电压型PWM整流器实现网侧单位功率因数整流,SVPWM调制-control rectifier with svpwm
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tree phase pmw rectifier whith pfc powersim simulation run in psim demos and plot result of this rectifier
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本文阐述了PWM整流器发展过程、发展现状以及发展方向,分析了PWM整流器的基本工作原理及其分类,然后采用LabVIEW-Multisim协同仿真对AC-DC变换进行完整系统的闭环仿真,结合脉冲宽度调制(PWM)信号的控制策略对整流器进行控制,最后对仿真结果进行分析。-This paper describes the development of PWM rectifier produced and present domestic and foreign research hot topic,
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三相光伏逆变并网的仿真,PAgiDxa参数调试通过可以使用,仿真效果非常好,pwm整流器的建模仿真,NTnOYAb条件包括调制,解调,信噪比计算,对于初学者具有参考意义。- Three-phase photovoltaic inverter and network simulation, PAgiDxa parameter Debugging can be used, Simulation of the effect is very good, Modeling and simulation
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用空间矢量控制法设计三相电压型PWM整流器,要求输入380V,输出650V。-Design of Three- Phase Voltage PWM Rectifier with Space Vector Control Act requires input 380V, output 650V.
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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
presente
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对pwm整流器双环控制进行仿真,包括速度外环和电流内环。(Simulation for thePWM rectifier control with speed outer control loop and the current inner control loop.)
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