Novel mid-point balancing for ANPC converter and assessing future DC to MV power converter architectures

ANPC 转换器的新颖中点平衡并评估未来直流到中压电源转换器架构

• 批准号: 490648-2015
• 负责人: Bakhshai, Alireza
• 金额: $ 1.82万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=586557
• 关键词: Novel; mid; point; balancing; ANPC

Schneider Electric has established the research goal of introducing a novel mid-point voltage balancing for ANPC converters and assessing future DC to MV power converter architectures. Although the worldwide headquarters of Schnieder Electric's Solar Business is Burnaby, BC, they do not have the in-house expertise to address the research challenges. This Engage Grant will establish a research collaboration which will hopefully provide the foundation for future interactions, and maintain Canada's position as a leader in this field.The use of renewable distributed energy resources (DERs) offers a variety of economic, environmental and technological benefits compared to conventional large scale generating units. Grid-tie DC/AC inverters are commonly used to feed the renewable energy into the grid by converting direct current (DC) electricity into alternating sinusoidalcurrent (AC). This AC voltage is generated by switch-mode power converters. Major concerns in grid-tie inverters are their weight, size, efficiency, reliability and life time. Technically, inverter topologies, materials, control methods and interior design layouts are major tools to address these concerns. Medium-voltage, high-power DC/AC grid-tie inverters are a future trend for high power renewable energy. Neutral-Point-Clamped (NPC) inverters, due to their unique characteristics, have proven to be among the best choices for Medium-voltage high-power DC/AC converters. However, mid-point voltage balancing and symmetrical semiconductor loss distribution are major goals that must be achieved. In Active Neutral-Point-Clamped (ANPC) inverters clamping diodes are replaced by controlled bi-directional switches to provide redundancy in switching. However, voltage balancing in APNCs is still a challenging issue that requires further investigation. In this research, we are looking for a novel control scheme and switching methodology to improve output voltage quality of grid-connected APNCs with balanced DC-side voltages for the whole range of power transfer.

施耐德电气确立了研究目标，即引入一种新颖的中点电压平衡 ANPC 转换器并评估未来的直流到中压电源转换器架构。尽管在世界范围内 施尼德电气太阳能业务的总部位于不列颠哥伦比亚省伯纳比，他们没有内部专业知识来 解决研究挑战。这项参与资助将建立一项研究合作，希望能够 为未来的互动奠定基础，并保持加拿大在该领域的领先地位。 可再生分布式能源 (DER) 提供了各种经济、环境和 与传统大型发电机组相比，技术优势明显。并网 DC/AC 逆变器 通常用于通过将直流（DC）电转换为可再生能源并入电网 交流正弦电流（AC）。该交流电压由开关模式电源转换器产生。 并网逆变器的主要关注点是其重量、尺寸、效率、可靠性和使用寿命。从技术上来说， 逆变器拓扑、材料、控制方法和内部设计布局是解决这些问题的主要工具 的担忧。中压、大功率DC/AC并网逆变器是大功率可再生能源的未来趋势 活力。 中性点钳位 (NPC) 逆变器由于其独特的特性，已被证明是最好的逆变器之一 中压大功率 DC/AC 转换器的选择。然而，中点电压平衡和 对称的半导体损耗分布是必须实现的主要目标。活跃中 中性点钳位 (ANPC) 逆变器钳位二极管由受控双向开关取代， 提供切换冗余。然而，APNC 中的电压平衡仍然是一个具有挑战性的问题 需要进一步调查。在这项研究中，我们正在寻找一种新颖的控制方案和切换 提高并网 APNC 输出电压质量的方法，具有平衡直流侧电压 整个功率传输范围。