| 引用本文: | 熊宏锦,饶喆,熊鹏文,等.多态的大功率可控硅开关功率放大器的仿真.[J].国防科技大学学报,2014,36(5):136-142.[点击复制] |
| XIONG Hongjin,RAO Zhe,XIONG Pengwen,et al.Simulation and research of high-power silicon controlled rectifier switching power amplifier based on various working state[J].Journal of National University of Defense Technology,2014,36(5):136-142[点击复制] |
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| 多态的大功率可控硅开关功率放大器的仿真 |
| 熊宏锦1, 饶喆1, 熊鹏文2, 苑秉成1 |
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(1.海军工程大学 兵器工程系, 湖北 武汉 430033;2.东南大学 仪器科学与工程学院，江苏 南京 210096)
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| 摘要: |
| 为了满足远距离海底探测对发射信号大功率的需求，选用了一种大功率可控硅开关功率放大器。在临界换流、自然换流和强迫换流3种工作状态下，分析了该功率放大器的工作原理，并建立了等效电路模型。运用OrCAD仿真了临界换流状态时的等效电路模型；在自然换流状态和强迫换流状态下，为获得功放电流值和负载电流值，对其等效电路模型分别建立了非线性数学模型，并通过Matlab和VC++采用四阶Runge-Kutta法对非线性数学模型进行求解。以上方法能够求得该功率放大器电路在任意时刻、任意点处的电流电压值，能较客观、真实地反映电路的工作状况，对工程应用具有一定的参考价值。 |
| 关键词: 开关功率放大器 换流状态 Runge-Kutta法 数值分析 OrCAD |
| DOI：10.11887/j.cn.201405023 |
| 投稿日期：2013-10-13 |
| 基金项目:国家自然科学基金资助项目（61074191）；国家部委资助项目（51303020308）；海军工程大学自然科学基金资助项目(201300000151) |
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| Simulation and research of high-power silicon controlled rectifier switching power amplifier based on various working state |
| XIONG Hongjin1, RAO Zhe1, XIONG Pengwen2, YUAN Bingcheng1 |
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(1．Department of Weapon Engineering, Naval University of Engineering, Wuhan 430033, China;2.School of Instrument Science and Engineering,Southeast University,Nanjing 210096,China)
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| Abstract: |
| For the requirement of high-power transmit signals in long-distance submarine detection, a high-power siticon controlled rectifier switching power amplifier (SPA) was used. The operating principle of this SPA was analyzed and the equivalent circuit models were established under different working states including critical commutating state, natural commutating state and compulsive commutating state. The equivalent circuit models were emulated in OrCAD when the SPA worked in critical commutating state. For the acquisition of power amplifier and load current value about SPA in natural and compulsive commutating state, the nonlinear mathematical models were established in the base of equivalent circuit models, then they were solved by fourth-order Runge-Kutta method under the platform of Matlab and VC++. The methods mentioned can calculate the voltage and current at any time any point of the SPA; it can reflect the working state of circuit objectively and factually; the research may be of certain reference for engineering application. |
| Keywords: switching power amplifier commutating state Runge-Kutta method numerical analysis OrCAD |
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