CAJ | 학술논문

探讨了蓄电池／超级电容器混合储能系统的建模与控制问题．将储能系统接人配电网中，通过逆变器控制单元双向调节储能系统的有功和无功功率，达到改善接人配电网公共连接点处电能质量的目的．在逆变器控制单元中，采用将电压闭环控制和功率补偿控制相结合的方法．该控制方法可充分发挥蓄电池／超级电容器各自的特点，减小电压波动和负荷波动的影响．采用MatlabSimulink进行仿真，表明混合储能系统可有效地改善配电网的电能质量．
탐토료축전지／초급전용기혼합저능계통적건모여공제문제．장저능계통접인배전망중，통과역변기공제단원쌍향조절저능계통적유공화무공공솔，체도개선접인배전망공공련접점처전능질량적목적．재역변기공제단원중，채용장전압폐배공제화공솔보상공제상결합적방법．해공제방법가충분발휘축전지／초급전용기각자적특점，감소전압파동화부하파동적영향．채용MatlabSimulink진행방진，표명혼합저능계통가유효지개선배전망적전능질량．
The equivalent model of paralleled EDLC/Battery hybrid system was set up and the control strategy was discussed. After connecting it with the distribution network, the hybrid improves power quality in PCC （public access point）, because the inverter controller realizes P and Q bidirectional flows of the hybrid system. Combining a voltage closed-loop control with a power control, the inverter can fully take EDLC and Battery＇s advantages to stabilize the fluctuations of load and voltage. Through Matlab Sim- ulink, the simulation study proves that the hybrid system is able to improve the power quality of distribu- tion network effectively.