柔性边界控制的微电网协调调度  

Coordinated scheduling with flexible boundary control of a microgrid

作　　者：齐志远[1] 张如意 张慧敏 于国晨[1] QI Zhiyuan;ZHANG Ruyi;ZHANG Huimin;YU Guochen(College of Electronic Information Engineering,Inner Mongolia University,Hohhot 010021,China)

机构地区：[1]内蒙古大学电子信息工程学院,内蒙古呼和浩特010021

出　　处：《电力系统保护与控制》2023年第23期179-186,共8页Power System Protection and Control

基　　金：内蒙古自然科学基金项目资助(2021MS06013)。

摘　　要：针对微电网调度中微燃机和储能装置因功率分配导致频繁调节问题,提出了柔性边界控制的微电网协调调度方法。首先,微燃机根据蓄电池的调节能力柔性改变其输出功率的调整边界。然后,蓄电池采用变电流充放电方法快速捕集随机变化的可再生能源和最大限度地释放储存的能量。最后,案例仿真表明微燃机减少了调节次数,蓄电池更加合理地进行充放电控制,可再生能源的利用率也得到了提高。因此,所提出的调度方法能够避免微燃机频繁调节、延长蓄电池使用寿命、降低设备损耗和系统运行成本,提高了微电网调度灵活性并降低了其对配电网的依赖度。To solve the problem that micro gas turbines(MGT)and energy storage devices are frequently adjusted because of power distribution in microgrid scheduling,a micro-grid coordinated scheduling method with flexible boundary control is proposed.First,the MGT flexibly changes its power output adjustment boundary according to the adjustment ability of the battery.Then,the battery adopts a variable current charging and discharging method to quickly capture randomly renewable energy and release stored energy to the maximum extent.Finally,the case simulation shows that the MGT reduces the number of adjustments,the battery is controlled more reasonably to charge and discharge,and the utilization rate of renewable energy is also improved.Therefore the proposed scheduling method can avoid MGT frequent adjustment,prolong the service life of the battery,cut down equipment loss and system operating costs,improve the scheduling flexibility of the microgrid,and reduce its dependence on the distribution network.

关 键 词：微电网 协调调度 柔性边界控制 储能 变电流控制 

分 类 号：TM73[电气工程—电力系统及自动化]