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.

施耐德电气已经确立了研究目标，即引入一种新型中点电压平衡， ANPC转换器和评估未来的DC到MV功率转换器架构。虽然世界范围内 Schnieder Electric的太阳能业务总部位于卑诗省本拿比，他们没有内部专业知识， 应对研究挑战。这项参与补助金将建立一个研究合作， 为未来的互动提供基础，并保持加拿大在这一领域的领导地位。 可再生分布式能源（DER）提供了各种经济，环境和 与传统的大型发电机组相比，并网DC/AC逆变器 通常用于通过将直流（DC）电转换成 交流正弦电流（AC）。该AC电压由开关模式功率转换器生成。 并网逆变器的主要关注点是它们的重量、尺寸、效率、可靠性和寿命。从技术上讲， 逆变器拓扑结构、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 性问题中压、大功率DC/AC并网逆变器是大功率可再生能源的未来发展趋势 能源 中性点箝位（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 是中压大功率DC/AC转换器的理想选择。然而，中点电压平衡和 对称半导体损耗分布是必须实现的主要目标。于活跃 中性点箝位（ANPC）逆变器箝位二极管由受控双向开关取代， 提供交换冗余。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的控制方案和开关 改善具有平衡DC侧电压的并网APNC的输出电压质量的方法， 整个能量传输范围。