In conventional finite-control-set model predictive control (FCS-MPC) for NPC-type grid-connected inverters, issues such as large output current harmonics and poor parameter robustness are prevalent. To address these challenges, this article presents a novel model-free predictive control method with dual vector.
MPC can effectively handle the constraints and nonlinearities of inverter systems, showing great potential in the control of grid-connected inverters for micro-grids . In high-voltage, high-power energy storage systems, power electronic converters are typically based on a three-level topology.
This research presents a transformerless five-level neutral point clamped (NPC) inverter with a coupled inductor for grid-connected PV systems, addressing key challenges such as total harmonic distortion (THD) reduction, common mode voltage (CMV) mitigation, and neutral current balancing.
These inverters are crucial for converting direct current (DC) from renewable sources like solar panels into alternating current (AC) suitable for the electrical grid [4, 5]. However, the operation of NPC inverters can be compromised by faults, which can affect both their performance and the stability of the power grid.
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Investigating and addressing fault detection is crucial for advancing the reliability, performance, and cost-effectiveness of grid …
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This paper presents the design and control of a grid-connected three-phase 3-level Neutral Point Clamped (NPC) inverter for Building Integrated Photovoltaic (BIPV) systems. …
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This paper uses the proposed converter for a grid-connected solar PV system with an NPC inverter controlled using Space Vector Pulse Width Modulation (SVPWM) technique. …
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This paper presents a closed-loop space vector modulation (SVM)-based sliding mode controller (SMC) for a three-level grid-connected neutral point clamped (3L-NPC) …
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1 Overview This demonstration illustrates a neutral-point clamped (NPC), three-level voltage-source inverter. The NPC topology has been adopted for high power applications …
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The main function of the grid-side converter is to stabilize the DC-side voltage and adjust the grid-connected power, and suppress the current harmonic input to the grid. Fig. 4 …
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Three-level NPC inverters have been widely used in grid-connected systems due to their superior performance compared with two …
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In conventional finite-control-set model predictive control (FCS-MPC) for NPC-type grid-connected inverters, issues such as large output current harmonics and poor parameter …
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Abstract This paper focuses on control design of three phase neutral point clamped multilevel inverters (NPC-MLI) interconnected with PV array to the existing grid together …
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Inverters are essential in converting solar panel-generated direct current (DC) into alternating current (AC) for seamless integration with electrical grids. This paper presents the …
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Consequently, in order to control currents and guarantee the voltage balance of the dc link capacitor, this inverter requires a closed …
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To ensure the three-level neutral point clamped (NPC) grid-connected inverter in a grid-connected system continuous operation after a single-phase bridge arm short circuit or open circuit …
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Optimal Switching Sequence Model Predictive Control for Three-Level NPC Grid-Connected Inverters Jianguo Lyu 1*, Han Yan2, Jinyong Ding1, Qiuwei Wu3, Xun Lyu1, Zhuang Sun1.
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This paper introduces a control strategy for a distributed generation system utilizing photovoltaics. The system employs a dual-stage configuration consisting of a DC-DC boost …
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PV grid-connected inverter S-FCS-MPC control structure Comparison of PV output power under partial shade +1 Voltage vectors involved in the calculation for each sector
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1 Overview This demo model shows the simulation of a grid-connected NPC inverter in closed current loop using SVPWM (Space-Vector PWM) and a neutral-point …
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This research investigates a transformerless five-level neutral point clamped (NPC) inverter for grid-connected PV applications, aiming to overcome these challenges.
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