| 引用本文: | 邢长达,郭家虎,朱成杰,梁克靖.MMC控制系统中子模块控制器的设计[J].电力系统保护与控制,2016,44(3):114-121.[点击复制] |
| XING Changda,GUO Jiahu,ZHU Chengjie,LIANG Kejing.Design of the sub-module controller of the MMC control system[J].Power System Protection and Control,2016,44(3):114-121[点击复制] |
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| 摘要: |
| 为了保证模块化多电平变换器(Modular Multilevel Converters，MMC)的正常工作，实现电容电压的平衡控制，设计了MMC控制系统中的子模块控制器。首先阐述了MMC控制系统的总体结构和工作原理，介绍子模块控制器在MMC控制系统中的作用。然后介绍了子模块控制器的主要硬件模块和软件部分的设计，着重介绍了在硬件上实现对IGBT的欠压与过流保护和用软件产生带死区保护的PWM驱动脉冲。最后在基于MMC的直流/交流(DC-AC)变换器实验平台上验证了设计的子模块控制器的合理性和可行性。 |
| 关键词: 模块化多电平换流器 控制系统 电容电压 子模块控制器 直流/交流变换器 |
| DOI：10.7667/PSPC150525 |
| 投稿时间：2015-04-01修订日期：2015-11-28 |
| 基金项目: |
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| Design of the sub-module controller of the MMC control system |
| XING Changda,GUO Jiahu,ZHU Chengjie,LIANG Kejing |
| (Anhui University of Science and Technology, Huainan 232001, China) |
| Abstract: |
| In order to ensure the normal work of Modular Multilevel Converters (MMC) and realize the capacitor voltage balancing, a sub-module controller in MMC control system is designed. First, the overall structure and working principle of MMC control system are described and effect of the sub-module controller in MMC control system is introduced. Then the design of main hardware modules and software module of the sub-module controller is presented, the implementation of the undervoltage and overcurrent protection for IGBT in hardware and PWM driven pulse with dead zone protection generated by using software are emphatically introduced. Finally, the rationality and feasibility of the sub-module controller is verified based on DC-AC converter of MMC experimental platform. |
| Key words: MMC control system capacitor voltage sub-module controller DC-AC converter |
