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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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AC motor drives are widely used to control the speed
of conveyor systems, blower speeds, pump speeds, machine tool
speeds, and other applications that require variable speed with
variable torque. The complete system consists of an ac voltage input
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short circuit power analysis of inverter for different rise time, fall time and capacitor value as simulated in Tanner tool.
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实现三相逆变器的闭环控制,基于电感电流和电容电流。实现逆变器的双闭环控制,动态性能良好,通过坐标转化为DQ坐标轴使得追踪精度良好,这里只提供了主函数部分,包括坐标变换,PI计算,相关的外设初始化,需要自己配置。(Realizes closed-loop control of three-phase inverters based on inductor current and capacitor current. Inverter dual-loop control, dynamic perfo
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BOOST电感、BUKC电感、逆变电容、电感计算表,比较详细的计算表格(BOOST Inductance, BUKC Inductance, Inverter Capacitor, Inductance Calculating Table)
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使用扰动观察法实现最大功率跟踪,使用电容电压外环,电感电流内环实现单位功率因数的并网逆变器双环控制。(The method of disturbance observation is used to realize the maximum power tracking, the outer loop of capacitor voltage and the inner loop of inductor current are used to realize the double loop con
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