Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters

Nguyen, Minh-Khai; Choi, Youn-Ok

doi:10.3390/en10040553

Cited by 23 publications

(33 citation statements)

References 26 publications

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“…From (2), (3) and (14), the transmission mechanism model of the inductor current ripple (15) and capacitor voltage ripple (16) can be obtained with Laplace transforms.…”

Section: Ripple Transmission Mechanismmentioning

confidence: 99%

“…From (2), (11), (12), (15), and (16), in the steady state, assuming a constant shoot-through duty cycle, we can get…”

Section: Ripple Transmission Mechanismmentioning

confidence: 99%

“…However, they still need filters or sensors to detect the 2ω ripple components, which will increase the cost. Therefore, the relationship between the variation of the shoot-through duty cycle and the 2ω ripple in the DC side, and realizing the suppression of the 2ω ripple with less hardware, needs further study.Reducing the modulation ratio of QZSI can effectively reduce the ripple content in the DC side; however, with the decrease of the modulation ratio and the increase of the shoot-through duty cycle, the harmonic distortion value of the inverter output voltage and the loss of switching devices will increase [15]. Some new modified modulation strategies have been addressed.…”

mentioning

confidence: 99%

“…Reducing the modulation ratio of QZSI can effectively reduce the ripple content in the DC side; however, with the decrease of the modulation ratio and the increase of the shoot-through duty cycle, the harmonic distortion value of the inverter output voltage and the loss of switching devices will increase [15]. Some new modified modulation strategies have been addressed.…”

mentioning

confidence: 99%

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Ripple Vector Cancellation Modulation Strategy for Single-Phase Quasi-Z-Source Inverter

Tang¹,

Li²,

Chen³

et al. 2019

Energies

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The double-frequency (2ω) power flows through the DC side of the single-phase quasi-Z-source inverter (QZSI) leads to the 2ω voltage ripple of capacitors and 2ω current ripple of inductors. This paper proposes a ripple vector cancellation modulation strategy (RVCMS) based on the thought of ripple vector cancellation. By analyzing the mechanism of ripple generation and transmission, we can obtain a variation of a shoot-through duty cycle to generate a compensated 2ω ripple used to cancel the 2ω current ripple of inductors caused by the 2ω ripple of DC link current, and the 2ω compensated variation of a shoot-through duty cycle with a specific amplitude and phase is added to the constant shoot-through duty cycle. Finally, simulation and experimental results demonstrate the correctness and effectiveness of the proposed modulation strategy for the single-phase QZSI.Energies 2019, 12, 3344 2 of 12The active power filter (APF) technology is usually applied to the ripple suppression for QZSI. In [11], an active-filter-integrated single-phase QZSI was proposed: The APF consists of an extra switch leg and a second-order filter; the 2ω pulsating power of the AC load is transferred to the filter and the extra leg; the capacitor voltage and the inductor current in the DC side will no longer have the 2ω ripple component with this method, but an extra circuit means a higher cost and more complicated control. In [12,13], 2ω ripple control strategies were proposed based on feed-back control. In [12], a low-pass filter was used to obtain the 2ω ripple of the inductor current in the DC side by extracting its DC component, which is used to generate a small variation of the shoot-through duty cycle, and Reference [13] regards the 2ω voltage ripple of the DC source as the feed-back signal. Reference [14] proposes a 2ω ripple suppression method based on feed-forward control: The feed-forward signal is obtained by a ripple observer, which can observe the 2ω current of the DC link by detecting the output current of the inverter. References [12][13][14] can realize the suppression of the 2ω ripple without an extra active filter circuit; we can call it virtual APF technology. However, they still need filters or sensors to detect the 2ω ripple components, which will increase the cost. Therefore, the relationship between the variation of the shoot-through duty cycle and the 2ω ripple in the DC side, and realizing the suppression of the 2ω ripple with less hardware, needs further study.Reducing the modulation ratio of QZSI can effectively reduce the ripple content in the DC side; however, with the decrease of the modulation ratio and the increase of the shoot-through duty cycle, the harmonic distortion value of the inverter output voltage and the loss of switching devices will increase [15]. Some new modified modulation strategies have been addressed. In [16], a modified modulation strategy was proposed, which was different from the traditional modulation strategy; the shoot-through control lines are modified to a line with a 2ω component. R...

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“…From (2), (3) and (14), the transmission mechanism model of the inductor current ripple (15) and capacitor voltage ripple (16) can be obtained with Laplace transforms.…”

Section: Ripple Transmission Mechanismmentioning

confidence: 99%

“…From (2), (11), (12), (15), and (16), in the steady state, assuming a constant shoot-through duty cycle, we can get…”

Section: Ripple Transmission Mechanismmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Ripple Vector Cancellation Modulation Strategy for Single-Phase Quasi-Z-Source Inverter

Tang¹,

Li²,

Chen³

et al. 2019

Energies

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show abstract

“…Sections 3 and 4 discuss conventional perturb and observe method and particle swarm optimization method, respectively. To integrate the output of PV panel to load through Z-Source inverter is discussed in Section 5 [34][35][36][37][38]. Finally, the results are conferred in Section 6.…”

Section: Introductionmentioning

confidence: 99%

Maximum Power Point Tracking Implementation by Dspace Controller Integrated Through Z-Source Inverter Using Particle Swarm Optimization Technique for Photovoltaic Applications

et al. 2018

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Maximum Power Point Tracking (MPPT) technique is used to extract maximum power from the photovoltaic system. This paper involves working on an enhanced Particle Swarm Optimization (PSO) based MPPT method for the photovoltaic (PV) system integrated through Z-Source inverter. The main benefit of the proposed method is the diminishing of the steady-state oscillation when the maximum power point (MPP) is located. Additionally, during an extreme environmental condition, such as partial shading and large fluctuations of irradiance and temperature, the proposed method has the capability to track the MPP. This algorithm is implemented in dspace 1104 controller. MATLAB simulations are carried out under varying irradiance and temperature conditions to evaluate its effectiveness. Its performance is compared with a conventional method like Perturb and observe (P&O) method.

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Physical Modeling and Analysis of Gate Drive DC-DC Converter Impact on Photovoltaic Inverter Efficiency

Stepenko,

Prystupa,

Yershov

et al. 2023

Lecture Notes in Networks and Systems

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Maximum Boost Control Method for Single-Phase Quasi-Switched-Boost and Quasi-Z-Source Inverters

Cited by 23 publications

References 26 publications

Ripple Vector Cancellation Modulation Strategy for Single-Phase Quasi-Z-Source Inverter

Ripple Vector Cancellation Modulation Strategy for Single-Phase Quasi-Z-Source Inverter

Maximum Power Point Tracking Implementation by Dspace Controller Integrated Through Z-Source Inverter Using Particle Swarm Optimization Technique for Photovoltaic Applications

Physical Modeling and Analysis of Gate Drive DC-DC Converter Impact on Photovoltaic Inverter Efficiency

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