| 1. | These years more and more emphasize have been focused soft - switching control in phase - shifted zvs pwm full - bridge dc / dc converter and more research need to be made . the principles of phase - shifted zvs pwm full - bridge converter are described and analyzed
基于移相控制的零电压脉宽调制dc - dc全桥变换器是软开关控制的一个研究热点，还有许多理论问题需要研究。 |
| 2. | Compared with digital integrator composed of reversible counter , the trapezoidal formula digital integrator is utilized in integrating element of phase - lock controller , it has advantages in simple realization , fast transient response , wide lock range , insensitivity to disturbance
对锁相控制的积分环节采用了梯形公式数字积分器，与可逆计数器构成的数字积分器相比，梯形公式数字积分器具有实现简单、动态响应快、入锁范围大、抗扰动能力强等优点。 |
| 3. | Aimed to the above mentioned defects of reactive power compensation devices being used widely up to now and no value of practical application , the article described the principle of compensation reactive power controlled by intellectual static auto - compensation system which is of every phrase active power compensation and three phrase balance compensation
针对这些实用性不强的无功功率补偿装置，本文提出了采用静止式无功功率自动补偿分相控制的系统总体方案，使补偿响应速度和补偿精度大为提高。 |
| 4. | Secondly , the specific circuit effects in the phase - shift pwm converter and their impact on the converter dynamics are analyzed . the small - signal model is derived incorporating the effects of phase - shift control . the design of control stage of the converter are optimized based on the small - signal model theoretically
针对全桥移相控制zvsdc dc变换器特有的电路性能以及变换器的动态特性，并结合移相控制的特点建立了全桥移相zvsdc dc变换器电路的小信号模型。 |
| 5. | The twelve kinds of modes and equivalent circuits of this inverter with high frequency link within one high frequency switching period are carefully analyzed ; by using the state - space averaging approach , the inverter ’ s averaging model is presented , and the design criterion of key circuit parameters and the output characteristic curve are given ; the analyses of the system stabilization and the mathematic analyzes of the principle of high - frequency - link of this inverter have also be done . prototypes for 1kva 270v 10 % dc / 115v400hzac uni - polarity phase shifting controlled bi - directional voltage mode inverter with high frequency link is designed
以全桥桥式拓扑为例,论述了双向电压源型高频环节逆变器单极性移相控制的原理、逆变器在一个高频开关周期内的十二个工作模式及其等效电路;采用状态空间平均法建立了逆变器平均模型,获得了这类逆变器的关键电路参数的设计准则和外特性曲线;分析了系统稳定性,并对逆变器高频环节原理进行了数学分析。 |
| 6. | Aiming at the features of grid - connected pv system , a kind of grid - connected control strategy is presented , which is based on the multi - variable double - loop control and synchronization phase - locked control . the multi - variable double - loop control is used for the real - time tracking , and the inherent principle error existing in the single - loop control is eliminated . the synchronization phase - locked control makes the frequency and phase of output current equal to those of utility voltage
针对光伏并网的特点，本文提出了一种基于多变量双环控制与同步锁相控制的并网控制策略，多变量双环控制用于电流的实时跟踪，解决了只采用单环控制存在的原理性误差问题；同步锁相控制则保证输出电流与电网电压同频和同相。 |
| 7. | The twelve kinds of modes and equivalent circuits of voltage mode ac - ac mode ac / ac converters with high frequency link within one high frequency switching period are carefully analyses . by using the state - space averaging approach , the converter ' s averaging model is presented , and the design criterion of key circuit parameters and the output characteristic curve are given
以全桥桥式拓扑为例，论述了单极性移相控制的原理、单极性移相控制电压源交?交型高频环节ac ac变换器在一个高频开关周期内的十二个工作模式及其等效电路。采用状态空间平均法建立了变换器平均模型，获得了关键电路参数的设计准则和变换器的外特性曲线。 |
| 8. | In this paper , research and manufacture work on high efficiency high power density high - voltage high - power dc power is undertaken on the basis of basic theories and past production . by inquisition the basic theory and project of sreies - parallel resonant converter witch is a soft - switch converter was selected to outspread research and design work
本文是在吸收前人研究成果的基础上，理论联系实际，针对高效、高功率密度、高压大功率直流电源展开的研制工作。在经过大量的实际调研工作的基础上，选择了一种软开关变换器（移相控制的串-并联谐振变换器）的技术方案，并围绕该方案展开理论研究和实际的设计工作。 |
| 9. | In this paper phase shift full bridge sreies - parallel resonant converter is expatiated witch is good project for design of high - voltage high - power power at present . besides those we discussed basic process and practical rc load model of sreies - parallel resonant converter
论文阐述了移相控制的全桥串并联谐振变换器，目前它是满足高效、高功率密度、高压大功率直流电源设计的一种很好技术方案；本文阐述了运用基波分析方法建立的串并联谐振变换器的等效电路模型。 |
