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    A designed and developed prototype for DC 3kVA 27V / AC 200V400Hz three-phase inverter with high frequency soft-switching has excellent comprehensive performances such as small bulk,lower weight, high conversion efficiency,high steady precision,fast dynamic response, wide input voltage range, good output waveforms, strong over-load and short-circuit ability, strong ability with different nature load and three-phase unbalanced load, and ZVS of the inverter bridge.
    设计并研制成功了3kVA27VDC/200V400HzAC高频软开关三相逆变电源,它具有体积重量小、变换效率高、静态精度高、动态响应快、输入电压变化范围宽、输出波形质量高、过载与短路能力强、带三相不平衡负载的能力强、逆变桥功率开关实现ZVS等优良的综合性能。
    A designed and developed prototype for 3kVA 27VDC/200V400HzAC combined three-phase inverter with high frequency pulse DC link has excellent comprehensive performances such as small bulk, lower weight, high conversion efficiency, high steady precision, fast dynamic response, wide input voltage range, good output waveforms, strong over-load and short-circuit ability, and strong ability with different nature load and three-phase unbalanced load.
    设计并研制成功的3kVA 27VDC/200V400HzAC 组合式三相高频脉冲直流环节逆变器,具有体积重量小、变换效率高、静态精度高、动态响应快、输入电压变化范围宽、输出波形质量高、过载与短路能力强、带三相不平衡负载的能力强等综合性能。
    The designed and developed 1kVA 220V ± 10%50HzAC/110V50HzAC prototype shows that the converters have perfect comprehensive performances such as good output waveforms,high efficiency,high power density,high line power factor,strong adaptability to various loads,strong over-load ability,low audio noise,small bulk and weight etc.
    设计并研制成功的1kVA220V±10%50HzAC/110V50HzAC正激式高频环节交-交变换器工程样机表明,该类变换器具有输出波形质量高、变换效率高、功率密度高、网侧功率因数高、负载适应和过载能力强、音频噪音低、体积重量小等优良的综合性能。
    The simulation result shows the inverter can get ideal output waveforms with good dynamic and static property.
    仿真结果表明,逆变电源输出波形具有良好的动静态性能。
    In the paper the output waveforms of the Arbitrary WaveformGenerator wereanalyzed qualitatively or quantitatively in spectrum zone.
    在系统性能分析上,本文主要对任意波形发生器的输出波形进行了定性或定量的理论分析。
    The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over-load and short-circuit ability, and strong function with different nature load and three-phase unbalanced load.
    试验结果表明,该变流器具有体积重量小、变换效率高、静态精度高、动态响应快、输入电压变化范围宽、输出波形质量高、过载与短路能力强、带不同性质负载和带三相不平衡负载的能力强等优良的综合性能。
    The test results demonstrate that this prototype has excellent comprehensive performances such as high efficiency, small bulk, lower weight, good output spectrum characteristics, easy design of the output filtering circuit, good output waveforms, good stability, high steady precision, fast dynamic response, strong function with different nature load, strong over-load and short-circuit ability, low noise and low cost, etc.
    试验结果表明,该原理样机具有变换效率高、体积重量小、输出频谱特性优、输出滤波器设计容易、输出波形质量高、稳定性好、静态精度高、动态响应快、负载适应能力强、过载与短路能力强、音频噪音低、成本低等优越的综合性能。
    Based on the above-all study, the design and experiment of UPFC device has been completed, including power circuit, control circuit, IGBT buffer circuit, sampling circuit and protecting driving circuit. DSP TMS320LF2407 has been selected as controller to control three-phase inverter. In this paper, the results of the experiment is given, it is shown that the experimental device meets the demand of keeping work-performance stabilization and better output waveforms.
    在理论分析的基础上,完成了UPFC实验装置平台的设计、制作和调试,包括主电路、控制电路、IGBT缓冲电路、驱动电路、采样和保护电路等,采用TI公司DSP TMS320LF2407作为控制器核心控制三相逆变器工作,论文给出了实验结果,实验结果说明该实验装置工作性能稳定,输出波形满足要求,达到了实验研究的目的。
    Considering improving the output waveforms and increasing the output frequency, paper includes the contents as follows.
    论文从改善输出波形质量、提高输出频率入手,主要涉及以下几个方面的内容。
    Based on the multilevel inverter and in conditions of improving the output waveforms and increasing the output frequency, paper selects the Triangular carrier phase shifting SPWM technique, which can increase the effective frequency of switching power amplifier, and to improve the output waveforms and increase the output frequency.
    文章以多电平电路为基础,以改善输出波形质量及提高输出频率为条件,从众多的控制方案中选择出三角载波移相SPWM控制方法,它可以提高等效开关频率,从而来改善输出波形质量及提高输出频率。
    The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, good effect on current-sharing strong over-load and short-circuit ability, and strong function with different nature load and non-linear load.
    试验结果表明,该并联逆变器具有体积重量小、变换效率高、静态精度高、动态响应快、输入电压变化范围宽、输出波形质量高、均流效果好、过载与短路能力强、带不同性质负载能力强等优良的综合性能。
    To begin with traditional multilevel topologies, this paper focuses on topologies and modulation methods of hybrid multilevel inverters. Besides, mathematic models illustrating modulation process are constructed to parse complicated output waveforms.
    本文以传统多电平逆变器拓扑为起点,重点研究混合多电平逆变器拓扑及其调制方法,并且构建了调制过程的数学模型,进而解析复杂的输出波形
    In this paper, the results of the experiment is given, it is shown that the experimental device meets the demand of keeping work-performance stabilization and better output waveforms.
    论文给出了实验结果,说明该实验装置工作性能稳定,输出波形满足要求,达到了实验研究的目的。
    The dissertation [26] presented a novel Buck-type voltage source converter (BVSC) and a novel dual-frequency Buck-type voltage source converter (DBVSC). Comparing with the conventional converters, the BVSC can achieve excellent output waveforms, and the DBVSC can reduce switching loss and improve power grade, which is suitable for large power situation.
    论文[26]提出了一种新型的双Buck型电压源换流器逆变电路(BVSC)及由此推导出来的双频双Buck型电压源换流器逆变电路(DBVSC),与传统的的变换器相比,BVSC仅利用两个高频开关就可取得较好的输出波形,DBVSC可以减小开关损耗,提高功率等级,特别适合大功率场合应用。
    The output waveforms of various spontaneous emission were observed and the formation mechanism of the laser output waveform was analyzed.
    通过观察各种自发辐射谱线输出波形,分析研究了激光输出波形的形成机理。
    This paper analyses in detail the error of high and low frequency responses for measuring explosion acceleration system in the frequency domain. The error caused by measuring system is calculated by means of spectrum analysis of input and output waveforms and different areas enclosed by ampli- tude-frequency curves.
    本文首先介绍了在频率域上对爆破加速度测量系统的低频响应误差和高频响应误差的详细分析过程,并对输入、输出波形采用频谱分析及计算幅频曲线,用幅频曲线所包围的不同面积来计算经过测量系统后所引起的误差.
    This paper discusses the method for eliminating a fixed number of harmonics in three-phase PWM voltage inverter—output waveforms.
    本文论述了在三相PWM电压型逆变器输出波形中消除预定数目谐波的方法.
    The inverter has the advantages of lower noise, lower loss, less volume, lighter weight, better output waveforms and without damping circuit.
    这种逆变器具有噪音低、损耗小、重量轻、体积小,输出波形好且不需要吸收电路等优点。
    The macromodel ,which provides a good pin-to-pin representation,simulates very well the output waveforms of LM565 and models satisfactorily the controls of external elements over the performance of LM565. The macromodel can be used in computer-aided-analysis of the circuits containing LM565.
    宏模型引出脚与实际器件一一对应,较好地模拟了LM565各个引脚的输出波形及外部元件对其性能的控制,使之能实际应用到由LM565构成的各种电路的计算机辅助分析中。
    おhis article introduces a smallsize multi-burst signal generator by applying digital memory technique. Its main features are as follows:(1)its output waveforms are steady and unifrom;
    本文介绍一种利用数字存储技术的小型多波型信号发生器.其主要特点是:(1)输出波形稳定、整齐;
 

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