The resonant inverter accepts a dc input voltage, and generates very high frequency (VHF) ac, which is processed through the transformation stage to produce different ac voltage and current levels. The resonant rectifier then converts the trans-formed ac power back to dc.
In many applications, it is important for an inverter to be lightweight and of a relatively small size. This can be achieved by using a High-Frequency Inverter that involves an isolated DC-DC stage (Voltage Fed Push-Pull/Full Bridge) and the DC-AC section, which provides the AC output.
The impedance-based analysis reveals that the dc-link voltage control may cause low-frequency oscillations in the rectifier mode and high-frequency oscillations in the inverter mode. Case studies on the rectifier and inverter operation modes are presented, and subsequently validated by using time-domain simulations and experimental tests.
Zero-voltage-switching (ZVS) resonant dc-dc converters offer the opportunity to operate at higher frequencies, but pose a number of design challenges. First, designs of this type often suffer from high device voltage stress –.
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The zero-sequence voltage and its corresponding ranges are carefully derived to control the dc-link capacitor voltages separately. Considering the specific constraint of this …
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The proposed control scheme provides multiple objectives, which comprise of the reducing DC-link voltage oscillations, eliminating the power oscillations and protection of the …
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1.1 Inverter-Rectifier Discussion The widely used controlled rectifier/inverter shown in Fig. 1.1, known as the three-phase PWM voltage source inverter (VSI)/boost rectifier offers …
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Introduction The basis for the discussion is a current controlled, line connected, PWM voltage source converter as shown in Figure 1 (used for instance as active rectifier / …
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The operation of grid-tied single-phase inverters generates oscillations in its DC link voltage. If only active/reactive power is controlled by the in…
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This study examines the impact of midpoint voltage fluctuations on the performance of multilevel converters and proposes an advanced control strategy to reduce the …
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Index Terms—Voltage-source converters, dc-link voltage-based synchronization, constant power dynamics, small-signal stability, active damping.
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The impedance-based analysis reveals that the dc-link voltage control may cause low-frequency oscillations in the rectifier mode and high-frequency oscillations in the inverter …
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Back-to-back (BTB) converters, which consist of an AC/DC rectifier cascaded with a DC/AC inverter, have been widely adopted in the interconnection of power systems. The DC …
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This paper analyzes the small-signal stability of dc-link voltage-synchronized VSCs, considering the effect of constant power load/source …
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Inverters are used in a large number of electrical power applications. Voltage inverters are divided into three categories, Pulse …
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To solve the problem of high output voltage spike of fixed dc link Inverter, this paper establishes the mathematical model of the rectifier output voltage. Based on the model, …
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1. Introduction In the two-stage single-phase inverter, the second harmonic current with twice output voltage frequency exists in the former DC converter because the …
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The operation of grid-tied single-phase inverters generates oscillations in its DC link voltage. If only active/reactive power is controlled by the inverter, this oscillation is at twice the …
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The resonant inverter accepts a dc input voltage, and generates very high frequency (VHF) ac, which is processed through the transformation stage to produce different …
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Inverter Vs. Rectifier: Definition What is an Inverter? An inverter is an electronic device that converts direct current (DC) into alternating …
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This paper analyzes the low-frequency oscillations of dc-link voltage-synchronized VSCs, which is due to the impact of constant power …
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The energy storage battery is connected to the DC side of the PWM rectifier through a bidirectional DC/DC converter and the DC side voltage can be maintained by its fast …
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In many applications, it is important for an inverter to be lightweight and of a relatively small size. This can be achieved by using a High-Frequency Inverter that involves an …
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Back-to-back (BTB) converters, which consist of an AC/DC rectifier cascaded with a DC/AC inverter, have been widely adopted in the …
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