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CN105024582B 一种新型两级式双向储能变流器控制系统及其控制方法 有权

  • 专利标题： 一种新型两级式双向储能变流器控制系统及其控制方法
  • 申请号： CN201510447531.X
    申请日： 2015-07-27
  • 公开(公告)号： CN105024582B
    公开(公告)日： 2018-08-21
  • 发明人: 郑宏 , 徐文成 , 谢超 , 张乐迪
  • 申请人： 江苏大学
  • 申请人地址： 江苏省镇江市京口区学府路301号
  • 专利权人： 江苏大学
  • 当前专利权人： 江苏大学
  • 当前专利权人地址： 江苏省镇江市京口区学府路301号
  • 主分类号： H02M7/797
  • IPC分类号： H02M7/797 ;  H02M3/337 ;  H02J3/32
一种新型两级式双向储能变流器控制系统及其控制方法
摘要：
本发明公开了一种新型两级式双向储能变流器控制系统及其控制方法，该储能变流器主电路主要包括三相电压型PWM整流器、新型半桥三电平推挽式双向DC‑DC变换器、限制电池充电电流的充放电缓冲接口电路与蓄电池组模块，其控制系统电路主要包括电压电流传感器、驱动电路、保护电路、主控制器、SOC检测模块、散热器、蜂鸣器、人机界面、通信接口电路及系统辅助供电电源；本发明可以实时检测交流微网功率或电压以及储能蓄电池荷电状态来灵活控制微网系统中各发电装置与储能变流器的运行模式，在电力系统中能起到“填峰削谷”、风光互补微电网系统中功率平滑等作用，并且具有功率密度高，体积小，效率高，谐波含量低，可靠性高，自控程度高等优点。
摘要（英）：

The invention discloses a novel two-stage bidirectional energy storage converter control system and a control method thereof. An energy storage converter main circuit mainly comprises a three-phase voltage type PWM (Pulse Width Modulation) rectifier, a novel half bridge three-level push-pull bidirectional DC-DC converter, a charging-discharging buffer interface circuit for limiting battery charging current, and a battery pack module. A control system circuit mainly comprises a voltage and current sensor, a driving circuit, a protection circuit, a main controller, an SOC (State of Charge) detection module, a radiator, a buzzer, a man-machine interface, a communication interface circuit and a system auxiliary power supply. The alternating-current micro-grid power or voltage and the states of charge of energy storage batteries can be detected in real time, so that the running modes of each generating set and the energy storage converter in a micro-grid system are controlled flexibly, and the effects of 'filling peaks and clipping valleys' in a power system, smoothening power in a wind-solar hybrid micro-grid system and the like are achieved. Moreover, the control system has the advantages of high power density, small size, high efficiency, low harmonic content, high reliability, high self-control degree and the like.

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