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机构地区:[1]天津大学智能电网教育部重点实验室,天津300072
出 处:《电力系统保护与控制》2012年第11期127-132,139,共7页Power System Protection and Control
基 金:国家重点基础研究发展计划(973计划)(2009CB219704);国家高技术研究发展计划(863计划)(2007AA05Z241);天津市自然科学基金项目(08JCYBJC13500)~~
摘 要:为了克服风能和太阳能等可再生能源其固有的间隙性、不可预测性的缺点,提高用户的供电质量,采用分布式电源、储能单元和负荷构成微网将是可再生能源有效利用的方式之一。针对飞轮储能系统所用永磁无刷直流电机的控制和能量转换问题,采用双向DC-DC的电能变换电路,实现储能和释能的双向控制,并给出其双PI闭环控制策略。在理论研究仿真的基础上,研制了基于双DSP的控制平台。搭建了飞轮储能实验系统,进行了储能和释能的实验,成功地将飞轮平稳升速至设定转速并维持恒转速,且能实现对负载的恒压放电,验证了控制算法和硬件平台的有效性。In order to utilize renewable energy efficiently and overcome their inherent intermittent and unpredictable nature, it is necessary to construct micro grids not only with distributed generation and load, but also with energy storage units. To solve the problems of permanent magnet brushless DC motor control and energy conversion in a flywheel energy storage system, a bi-directional DC-DC power conversion circuit is designed and its dual-PI closed-loop control strategy is proposed. Under theoretical analysis and simulation, a control platform based on dual-DSP is developed to accomplish the control tasks in charging and discharging processes. On the experimental system of flywheel energy storage, charging and discharging experiments are carried out. The flywheel accelerates smoothly to the target speed and maintains the constant speed when charging, and it can achieve a constant voltage discharging on the load. Results show the effectiveness of both control platform and control strategy.
关 键 词:可再生能源发电 储能 飞轮 永磁无刷直流电机 双向DC-DC 双DSP
分 类 号:TM919[电气工程—电力电子与电力传动]
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