直驱开关磁阻网络波能捕获最优协调机制研究

项目名称： 直驱开关磁阻网络波能捕获最优协调机制研究

项目编号： No.51477103

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 潘剑飞

作者单位： 深圳大学

项目金额： 82万元

中文摘要： 针对波能利用的产业化需求及发电单体效率低、品质差、收集点外能量无法获取的缺陷，提出基于多直驱开关磁阻单元协调发电网络实现区域波能捕获，为波能的有效转化提供新思路。本项目以直驱开关磁阻分布式网络波能转化及提高电能质量为核心，围绕网络波能捕获机理和电压、电流协调控制两个关键问题展开研究。首先研究单元对发电网络影响因素及共波浪能流单元捕获关联特性，揭示发电网络波能转化规律；其次结合区域波能分布感知信息，辨识网络单元行为，探索直驱发电网络协调关系机理；重点研究发电网络分布式最优协调控制新方法。通过广义无源理论及同步域分析，揭示单元自反馈与网络层控制项内在联系，探索信息拓扑的图特性与网络层控制增益的耦合本质，实现信息拓扑与网络层控制独立优化。最终使发电网络根据供需平衡和储能情况等约束下实现网络最优波能捕获，同时网络电压控制精度及电流平滑性得到有效改善,为分布式波能捕获网络的技术创新提供基础理论支撑。

中文关键词： 直驱式；开关磁阻；发电网络；协调机制；海浪发电

英文摘要： If multiple linear direct generation units form a coordinated power generation network to realize regional wave energy extraction, the disadvantages inherent from a wave energy conversion unit such as low efficiency, poor power quality and the incapability of energy extraction outside the collection point, etc., can be solved. However, due to the uncertainties of the distribution from the wave energy, the imbalance of the energy storage and action performance from the generation unit and its nonlinear, time-variant, periodic excitation/generation characteristics, the power generation network exhibits asynchronous power output and low power quality features, and it is difficult for smooth main grid connection and synchronization. In addition, these factors eventually lead to the design challenges for the coordination operation of the network. From the above analysis, this project first investigates the power conversion mechanism of the network. Then, behavior identification for the generation units is performed based on the sensed information of the regional wave energy distribution. The key research from this project is to develop a suitable distributed optimal coordination control algorithm for the direct drive power generation network: First, the design interaction between the control term from the network level and the self-feedback control term from the unit is decoupled, based on the generalized passive method; then, through the synchronization domain analysis, the connection between the graph characteristics of the information topology and control gains of the network level can be eliminated. Therefore, the design difficulties of the coordination control law can be alleviated and the information topology and the control gains from the network level can be independently optimized. Finally, the ultimate goal of the optimized regional power conversion can be realized, considering both demand-supply requirements and energy storage conditions. In addition, the voltage precision and current smoothness from the power generation network can be effectively guaranteed and improved for future applications, such as main grid connection and synchronization.

英文关键词： direct drive;switched reluctance;power generation network;coordination mechanism;wave power generation