Comparative Performance Analysis of Conventional and Strategic PWM Shoot-Through Placement in Maximum Boost-Controlled Z-Source Inverters
最大ブースト制御Zソースインバータにおける従来型および戦略的PWM短絡配置の比較性能解析 (AI 翻訳)
Johannes TR, Kabeya M, Ngongoma MSP
🤖 gxceed AI 要約
日本語
本論文は、再生可能エネルギー応用向けZソースインバータにおいて、従来の最大ブースト制御（MBC）と提案する改良型MBC（MMBC）のPWM短絡配置を比較した。MMBCは電圧歪率（THDV）を4.05%から1.69%に低減するが、出力電圧が低下する。このトレードオフは電力品質向上とフィルタ要件低減に寄与する。
English
This paper compares conventional and strategic PWM shoot-through placement for Z-source inverters in renewable energy applications. The proposed Modified Maximum Boost Control (MMBC) reduces voltage THD from 4.05% to 1.69% at the cost of lower output voltage, improving power quality and reducing filter requirements.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では太陽光発電の急増に伴い、系統連系インバータの高調波対策が重要課題となっている。本手法はフィルタコスト削減と電力品質向上に寄与し、日本の再生可能エネルギー導入拡大に資する。
In the global GX context
Globally, as renewable energy penetration rises, grid-connected inverters must meet strict harmonic standards. This modulation technique reduces THD and filtering needs, offering a cost-effective solution for inverter manufacturers and grid operators.
👥 読者別の含意
🔬研究者:Power electronics researchers can build on the MMBC modulation strategy for further optimization.
🏢実務担当者:Inverter manufacturers can adopt the MMBC technique to improve product power quality and reduce filter costs.
📄 Abstract（原文）
The Z-source inverter (ZSI) has emerged as an effective single-stage power conversion topology for renewable energy applications owing to its inherent capability to perform both voltage buck and boost operations. However, the shoot-through states required to achieve voltage boosting introduce additional harmonic distortion that can degrade output power quality and increase the dependence on passive filtering. This paper presents a comparative performance analysis of conventional and strategic PWM shoot-through placement within the Maximum Boost Control (MBC) framework for three-phase Z-source inverters. A strategic shoot-through placement approach, referred to as Modified Maximum Boost Control (MMBC), is proposed to redistribute shoot-through intervals without compromising the voltage boost capability. Both control strategies were modelled and evaluated in MATLAB/Simulink under identical operating conditions. Their performance was assessed using Voltage Total Harmonic Distortion (THDV), voltage gain, and boost factor as the primary evaluation metrics. The simulation results indicate that the proposed MMBC achieved a minimum THDV of approximately 1.69%, compared with 4.05% obtained using conventional MBC. The improved harmonic performance was accompanied by a reduction in the output voltage magnitude, highlighting the trade-off between power quality enhancement and voltage utilisation. These findings demonstrate that strategic PWM shoot-through placement can substantially enhance the power quality of Z-source inverters and reduce harmonic filtering requirements, making the proposed approach suitable for renewable energy conversion applications.
🔗 Provenance — このレコードを発見したソース
- Research Square https://doi.org/10.20944/preprints202607.1451.v1first seen 2026-07-25 04:38:43
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