针对蓄电池和超级电容器储能特性不同的特点,将风电功率信号进行多尺度小波包分解,得到蓄电池和超级电容器的充放电参考功率。提出基于蓄电池和超级电容器荷电状态SOC(state of charge)的功率分配优化方法,详细讨论两种储能元件协调工...针对蓄电池和超级电容器储能特性不同的特点,将风电功率信号进行多尺度小波包分解,得到蓄电池和超级电容器的充放电参考功率。提出基于蓄电池和超级电容器荷电状态SOC(state of charge)的功率分配优化方法,详细讨论两种储能元件协调工作时可能出现的所有工作状态,实时检测储能元件SOC的大小,当处于非正常工作状态时调整储能元件的实时充放电参考功率,进行相应的过充过放保护。该方法对风电功率波动具有较好的平抑效果,且能有效延长蓄电池和超级电容器的使用寿命,在Matlab/Simulink中搭建仿真模型验证了该控制方法的有效性。展开更多
The network-on-chip （NoC） design methodology is an important trend for large system-on-chip designs to reduce the bandwidth and power constraints in traditional synchronous bus architectures. In the design of packet...The network-on-chip （NoC） design methodology is an important trend for large system-on-chip designs to reduce the bandwidth and power constraints in traditional synchronous bus architectures. In the design of packet-based NoC, the packet-length plays an important role in the NoC throughput, latency, and energy consumption. The appropriate NoC packet-length was selected based on simulation and analysis of the packet-length effect on NoC for variable average data block length （ADBL） configuration parameters. A trade-off curve among throughput, latency, and energy consumption was developed and shows that the optimum packet length increases as the ADBL increases.展开更多
文摘针对蓄电池和超级电容器储能特性不同的特点,将风电功率信号进行多尺度小波包分解,得到蓄电池和超级电容器的充放电参考功率。提出基于蓄电池和超级电容器荷电状态SOC(state of charge)的功率分配优化方法,详细讨论两种储能元件协调工作时可能出现的所有工作状态,实时检测储能元件SOC的大小,当处于非正常工作状态时调整储能元件的实时充放电参考功率,进行相应的过充过放保护。该方法对风电功率波动具有较好的平抑效果,且能有效延长蓄电池和超级电容器的使用寿命,在Matlab/Simulink中搭建仿真模型验证了该控制方法的有效性。
基金Supported by the National Natural Science Foundation of China(No. 90607009)the National High-Tech Research and Development (863) Program of China (No. 2008AA01Z107)the Na-tional Key Basic Research and Development (973) Program of China (No. 2007CB310701)
文摘The network-on-chip （NoC） design methodology is an important trend for large system-on-chip designs to reduce the bandwidth and power constraints in traditional synchronous bus architectures. In the design of packet-based NoC, the packet-length plays an important role in the NoC throughput, latency, and energy consumption. The appropriate NoC packet-length was selected based on simulation and analysis of the packet-length effect on NoC for variable average data block length （ADBL） configuration parameters. A trade-off curve among throughput, latency, and energy consumption was developed and shows that the optimum packet length increases as the ADBL increases.
