What is HFL matrix converter?
The high-frequency link (HFL) three-phase four-leg matrix converter (MC) is a new type of inverter topology developed on the basis of ordinary three-phase four-leg inverter. It can satisfy the increasing demand of high power density and does not affect the performance and reliability of the inverter.
What is a hybrid pulse width modulation strategy for a four-wire matrix converter?
This paper presents a hybrid pulse width modulation (HPWM) strategy for a four-wire matrix converter based on the fourth bridge leg compensation method. Firstly, the rear-stage topology of a high-frequency link three-phase four-leg matrix converter is decoupled into two sets of ordinary three-phase four-wire inverters.
Can a four-wire matrix converter output balanced voltage for unbalanced load conditions?
A high-frequency link (HFL) three-phase four-leg matrix converter (MC) can output three-phase balanced voltage for unbalanced load conditions. It is an inverter with great development potential. This paper presents a hybrid pulse width modulation (HPWM) strategy for a four-wire matrix converter based on the fourth bridge leg compensation method.
How is a three-phase matrix converter decoupled?
Firstly, the rear-stage topology of a high-frequency link three-phase four-leg matrix converter is decoupled into two sets of ordinary three-phase four-wire inverters. Then the compensation strategy is applied to separate the fourth bridge leg from the coupling of the ordinary inverter and realize its independent control.
What is a high-frequency isolation transformer?
In the topology, a high-frequency isolation transformer is used to transfer energy, so that it not only has the function of electrical isolation, but also reduces the volume and mass of the system through the frequency rise of the transformer.
How do you change a three-phase matrix converter to an unbalanced load?
Keep the B-phase and C-phase resistances unchanged at 15 Ω, replace the phase A resistor with 50 Ω, changing the system with a balanced load to an unbalanced load. Figure 8 a,b shows the three-phase voltage and current waveform of the high-frequency link three-phase four-leg matrix converter under unbalanced load, respectively.
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A new control strategy of high-frequency link inverter
A De-Re-coupling uni-polarity phase-shifted controlled single-phase high-frequency link matrix inverter (SPHFLMI), a novel optimized waveform method is introduced to solve the problem of low voltage utilization and high harmonic components caused by dead-time through changing the setup of adding dead- time. Expand
Get Price →Research on the Voltage Spike Suppression Strategy for Three-Phase High ...
The problem of high-voltage spikes on the secondary side of a high-frequency transformer (HFT) in the commutation process of a three-phase high-frequency link matrix-type inverter (HFLMI) is studied. Considering the parasitic capacitance of MOSFETs, the mechanism of voltage spikes during HFLMI commutation is revealed. According to the characteristics of the topology, the …
Get Price →Research on the Voltage Spike Suppression Strategy for Three-Phase High ...
The problem of high voltage spikes on the secondary side of high frequency transformer (HFT) in the commutation process of three-phase high frequency link matrix-type inverter (HFLMI) is studied.
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In order to expand the system capacity,realize the electrical isolation of the inverter,and overcome the shortcomings of the traditional inverter,such as big volume,high cost and large noise,the high frequency link matrix inverters are adopted to be paralleled.On the
Get Price →Matrix converter: Model and control
As shown in Fig. 4.12, HFMC is characterized by a high-frequency transformer (turns ratio is n:1 and leakage inductance is L lk), and other links such as LC filters, CSR, and a single-phase inverter. The high-frequency link shown in Fig. 4.12 is a kind of dual-active bridge structure, whereas other resonance compensation networks can be added ...
Get Price →Leg control strategy of high frequency link three-phase four-leg matrix ...
In order to solve the problem of the output voltage unbalance, which is caused by unbalanced load or nonlinear load. This paper proposes the high frequency link (HFL) three-phase four-leg matrix inverter which is not only having perfect ability with the unbalanced load or the linear load, but also can realize the input and output electrical isolation. It also can change the range of …
Get Price →A new de-re-coupling SPWPM modulation strategy of current source high ...
A new modulation method for further improving the efficiency of high-frequency inverter by de-recoupling sinusoidal pulse width phase modulation (SPWPM), which reduces the number of switching times and reduces the switching loss. This paper presents a current source de-recoupling sinusoidal pulse width phase modulation (SPWPM) strategy for the control of high …
Get Price →Bidirectional three-phase high-frequency ac link dc–ac …
both the high current requirements at the dc side and the high voltage needs at the ac side. For MOSFETs, the on-resistance R DS (on) increases with their voltage ratings, which leads to significant conduction loss. Voltage gain can be adjusted by using a high-frequency (HF) transformer. Widely used voltage-fed HF ac link inverters, as
Get Price →Hybrid Pulse Width Modulation Strategy of a High …
It is an inverter with great development potential. This paper presents a hybrid pulse width modulation (HPWM) strategy for a four-wire matrix converter based on the fourth bridge leg compensation method. Firstly, the rear-stage topology of a high-frequency link three-phase four-leg matrix converter is decoupled into two sets of ordinary
Get Price →Hybrid Pulse Width Modulation Strategy of a …
A high-frequency link (HFL) three-phase four-leg matrix converter (MC) can output three-phase balanced voltage for unbalanced load conditions. It is an inverter with great development potential. This paper presents a hybrid pulse …
Get Price →Research on the Voltage Spike Suppression Strategy for ...
The problem of high-voltage spikes on the secondary side of a high-frequency transformer (HFT) in the commutation process of a three-phase high-frequency link matrix-type inverter (HFLMI) is studied. Considering the parasitic capacitance of MOSFETs, the mechanism of voltage spikes during HFLMI commutation is revealed.
Get Price →Generalized average model for a high-frequency link grid-connected DC ...
Full-order switched and time-continuous models for a High-Frequency Link Grid-Connected DC/AC converter are presented in this paper. The configuration is DAB-based, therefore its transformer leakage inductor current is purely AC as well as the remaining grid-side voltages and current; representing a challenge to obtain an average or time-continuos model, …
Get Price →An Integration SPWM Strategy for High-Frequency Link Matrix Converter ...
This paper presents a model predictive control (MPC) strategy for a three-phase high-frequency link matrix inverter (HFLMI). The de-re-coupling concept will be utilised to decompose the matrix ...
Get Price →High-Frequency-Link Inverter Using Combined Synchronous …
This paper presents a novel combined-synchronous-rectifier high-frequency-link (CSR-HFL) inverter. Three types of conventional HFL inverters are analyzed and their performance is summarized. According to one of the conventional HFL inverters, i.e., cycloconverter-type HFL (CHFL) inverter, a combined rectifier topology is deduced. To prevent …
Get Price →Leg control strategy of high frequency link three-phase four-leg matrix ...
This paper proposes the high frequency link (HFL) three-phase four-leg matrix inverter which is not only having perfect ability with the unbalanced load or the linear load, but also can realize …
Get Price →Leg control strategy of high frequency link three-phase four-leg matrix ...
In order to solve the problem of the output voltage unbalance, which is caused by unbalanced load or nonlinear load. This paper proposes the high frequency link (HFL) three-phase four-leg matrix inverter which is not only having perfect ability with the unbalanced load or the linear load, but also can realize the input and output electrical isolation.
Get Price →De-Re-Coupling Scheme-based Model Predictive Control of …
This paper presents a model predictive control (MPC) strategy for a three-phase high-frequency link matrix inverter (HFLMI). The de-re-coupling concept will be utilised to decompose the matrix ...
Get Price →A waveform control strategy for single-phase high-frequency link matrix ...
A single-phase high frequency link matrix inverter is selected as the study object, and it is made up of three parts such as unidirection full-bridge H type inverter in the DC input side, high ...
Get Price →Three-mode one-cycle controlled current-source single …
A current-source single-stage multi-input high-frequency-link grid-connected inverter and a three-mode one-cycle control strategy are proposed and deeply investigated in this paper. The inverter contains multiple current-source inverting units, a multi-input high-frequency transformer, and a cycloconverter. It achieves single-stage power conversion and high …
Get Price →High Gain, High Frequency Link DC-AC Converter with …
The steady-state voltage gain achieved is twice that of the conventional H-bridge phase-shift converter and the input current is continuous in the proposed converter which reduces the DC bus capacitor requirement for solar PV fed applications. A high gain, single-stage DC-AC converter with high frequency AC link is proposed in this paper. The single-stage DC-AC …
Get Price →A New Method of High Frequency Link Matrix Inverter in …
In order to solve this problem, the parallel connection of three-phase high frequency link matrix inverter is studied in this paper. By using the high frequency transformer, the volume of the …
Get Price →Research on the Voltage Spike Suppression Strategy for Three-Phase High ...
The problem of high-voltage spikes on the secondary side of a high-frequency transformer (HFT) in the commutation process of a three-phase high-frequency link m
Get Price →A New Method of High Frequency Link Matrix Inverter in …
In order to solve this problem, the parallel connection of three-phase high frequency link matrix inverter is studied in this paper. By using the high frequency transformer, the …
Get Price →A waveform control strategy for single-phase high-frequency link matrix ...
For the uni-polarity phase-shifted controlled single-phase high-frequency link matrix inverter (SPHFLMI), a novel optimized waveform method is introduced to solve the problem of low voltage utilization and high harmonic components caused by dead-time through changing the setup of adding dead-time in this paper. The feasibility and effectiveness ...
Get Price →A new de-re-coupling SPWPM modulation strategy of voltage source high ...
A single-phase high frequency link matrix inverter is selected as the study object, and it is made up of three parts such as unidirection full-bridge H type inverter in the DC input side, high ...
Get Price →Research on single phase Z source high frequency link matrix inverter ...
In this paper, the operating mode of single phase Z source high frequency link inverter is analyzed. Secondly, the mathematical model of Z source high frequency link matrix …
Get Price →An Integration SPWM Strategy for High-Frequency Link Matrix …
HFL matrix converter (HFLMC) can be divided into two types: high-frequency link matrix inverter (HFLMI) and high-frequency link matrix rectifier (HFLMR). A three-phase output HFLMI is selected as the object of this study, and a novel integration sinusoidal pulse width modulation (SPWM) control strategy with one-step adaptive commutation based ...
Get Price →High-Frequency-Link Inverter Using Combined Synchronous Rectifiers ...
HFL matrix converter (HFLMC) can be divided into two types: high-frequency link matrix inverter (HFLMI) and high-frequency link matrix rectifier (HFLMR). A three-phase output HFLMI is selected as ...
Get Price →Three‑mode one‑cycle controlled current‑source …
multi‑input high‑frequency‑link inverter Yanhui Qiu1 · Daolian Chen2 Received: 16 March 2022 / Revised: 26 August 2022 / Accepted: 29 August 2022 / Published online: 13 September 2022 ... The matrix inverting unit based on a buck type circuit achieves the converter single-stage * Daolian Chen chendaolian@hotmail 1 College of ...
Get Price →Frontiers | Soft switching modulation strategy …
The Cycloconverter-type high-frequency link inverter (CHFLI) topology is composed of a primary-side inverter and a secondary-side cycloconverter with a high-frequency transformer (HFT) interposed between …
Get Price →A novel matrix high frequency link inverter control method
The high-frequency inverter bridge adopts PWM modulation, and the matrix converter adopts SPWM modulation to realize the control of the matrix high-frequency link inverter, which …
Get Price →High Frequency Bidirectional Isolated Matrix Converter for …
This paper aims to develop the inverter mode of high frequency isolated matrix converter (HFI-MC) for on-board integrated motor drive and battery charger in electric vehicle. Unlike grid side, motor drive requires that HFI-MC could control flexibly amplitude and angle of AC voltage, especially at zero or low speed, it need to output extremely low voltage and high …
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