一个增强增益非隔离的二进制提升直流-直流转换器,具有连续源电流
Nafis Subhani1, Zazilah May2, Md Khorshed Alam3
1Department of Electrical and Electronic Engineering, Leading University, Sylhet, Bangladesh.
PloS one
|December 7, 2023
概括
一个新的非隔离的二进制提升直流-直流转换器提供了更少的组件高电压增益. 它的连续输入电流和共享开关接地简化了光伏应用的设计.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
背景情况:
- 直流-直流转换器对于电源管理至关重要.
- 现有的转换器可能在电压增益,组件数量或适用于可再生能源的适用性方面存在局限性.
研究的目的:
- 提出一种新的非隔离的二次提升直流-直流转换器拓.
- 为了实现高输出电压增益,减少组件数量.
- 为了提高适用于光伏 (PV) 应用的适用性.
主要方法:
- 详细的数学建模和稳定状态分析.
- 组件电压应力和功率损耗计算.
- 使用Matlab/Simulink进行模拟并对250W原型进行实验验证.
主要成果:
- 拟议的转换器可以在较低的组件数量下实现高输出电压增益.
- 连续输入电流简化了输入波器设计,非常适合光伏系统.
- 在50%的工作周期中达到92%的峰值效率,验证了设计.
结论:
- 非隔离的二次增压转换器是光伏电力系统的高效和简化解决方案.
- 该设计在组件数量,输入电流特性和控制电源要求方面具有优势.
- 实验结果证实了理论和模拟发现,证明了实际可行性.
相关概念视频
MOSFET Amplifiers
163
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
163
Voltage Doubler Circuit
591
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.
591
MOSFET: Enhancement Mode
346
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
346
Small-Signal Analysis of MOSFET Amplifiers
566
In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...
566
Design Example: Capacitance Multiplier Circuit
786
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
786
Cascaded Op Amps
639
Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
639


