基于滤波原理的光氢超并网系统建模与功率控制  

Modeling and power control of active PV electrolyzer and supercapacitor grid-connected system based on the principle of filtering

作　　者：杨少帅 刘易 Yang Shaoshuai Liu Yi(School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200082, China Yingtan Electric Power Supply Company, State Grid Jiangxi Electric Power Company, Yingtan 335000, Jiangxi, China)

机构地区：[1]上海电力学院电气工程学院,上海200082 [2]国网江西省电力有限公司鹰潭供电公司,江西鹰潭335000

出　　处：《电测与仪表》2017年第15期86-90,共5页Electrical Measurement & Instrumentation

基　　金：上海绿色能源并网工程技术研究中心资助项目(13DZ2251900)

摘　　要：针对光伏新能源功率输出随机性强、波动性大的缺陷,提出了基于低通滤波原理的能量型电解槽制氢和密度型超级电容器共同作为储能设备的功率分配控制策略,该策略能够有效地利用电解槽和超级电容器能量优势互补的特性来平抑直流母线功率波动。同时对其功率分配初始参考值进行修正以满足电解槽额定出力和超级电容器荷电状态上下限等约束条件,从而保证混合系统向电网可靠供电。通过PSCAD/EMTDC仿真平台对系统建模,仿真分析结果验证了所述控制策略的有效性。For the defects of output randomness volatility and large fluctuation of photovoltaic new energy, this paper proposes a control strategy, taking common energy storage device as a power distribution, which is based on the prin- ciples of the low-pass filter and an energy density of electrolyzer and supercapacitor, as a result, it can effectively uti- lize electrolyzer and supercapacitor energy complementary features to stabilize the DC bus power fluctuations. While its power allocation initial reference value is corrected to meet the rated output of the electrolyzer and supercapacitor charge state constraints such as to ensure reliable power supply to the grid hybrid system. The system modeling is fin- ished through PSCAD / EMTDC simulation platform, and simulation results demonstrate the effectiveness of the pro- posed control strategy.

关 键 词：光伏发电 电解槽 超级电容器 功率控制 

分 类 号：TM933[电气工程—电力电子与电力传动]