电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2013年
19期
103-109
,共7页
张冰冰%邱晓燕%刘念%孙斌%刘明%朱椤方%崔伟%魏杰%郑乔%庄哲
張冰冰%邱曉燕%劉唸%孫斌%劉明%硃欏方%崔偉%魏傑%鄭喬%莊哲
장빙빙%구효연%류념%손빈%류명%주라방%최위%위걸%정교%장철
光伏发电系统%超级电容器%蓄电池%混合储能%改进型MPPT%功率平抑
光伏髮電繫統%超級電容器%蓄電池%混閤儲能%改進型MPPT%功率平抑
광복발전계통%초급전용기%축전지%혼합저능%개진형MPPT%공솔평억
PV system%ultra capacitor%battery%hybrid energy storage%improved MPPT%power stabilization
针对光伏发电系统中发电功率波动问题，构建了一种基于混合储能的光伏并网发电系统模型，以平抑并网功率的波动。该模型引入了由超级电容器和蓄电池组成的混合储能系统，可以有效应对在各种天气条件下所引起的光伏输出功率波动问题，从而对并网功率进行削峰填谷。同时，对现有的MPPT法进行相应改进，提出了单向变步长追踪法，能够更加稳定且迅速地调整光伏系统的最大输出功率，提高发电效率。最后，在Matlab/Simulink上进行仿真，结果表明该混合储能控制系统能够有效提高光伏并网功率输送的稳定性能。
針對光伏髮電繫統中髮電功率波動問題，構建瞭一種基于混閤儲能的光伏併網髮電繫統模型，以平抑併網功率的波動。該模型引入瞭由超級電容器和蓄電池組成的混閤儲能繫統，可以有效應對在各種天氣條件下所引起的光伏輸齣功率波動問題，從而對併網功率進行削峰填穀。同時，對現有的MPPT法進行相應改進，提齣瞭單嚮變步長追蹤法，能夠更加穩定且迅速地調整光伏繫統的最大輸齣功率，提高髮電效率。最後，在Matlab/Simulink上進行倣真，結果錶明該混閤儲能控製繫統能夠有效提高光伏併網功率輸送的穩定性能。
침대광복발전계통중발전공솔파동문제，구건료일충기우혼합저능적광복병망발전계통모형，이평억병망공솔적파동。해모형인입료유초급전용기화축전지조성적혼합저능계통，가이유효응대재각충천기조건하소인기적광복수출공솔파동문제，종이대병망공솔진행삭봉전곡。동시，대현유적MPPT법진행상응개진，제출료단향변보장추종법，능구경가은정차신속지조정광복계통적최대수출공솔，제고발전효솔。최후，재Matlab/Simulink상진행방진，결과표명해혼합저능공제계통능구유효제고광복병망공솔수송적은정성능。
Aiming at the question of balancing the fluctuating photovoltaic grid-connected generation system, a hybrid energy storage-based grid-connected PV power system model is proposed to overcome the fluctuation of grid-injected power caused by the change of illumination intensity and temperature. An ultracapacitor-battery based energy storage control system is employed to smooth the fluctuation of grid-injected power caused by the change of various weather conditions. A new method to track the maximum power point is proposed to modulate the maximum output power of PV system more stably and instantly, and it can also improve the power generation efficiency. Finally, this model is tested by using Matlab/Simulink. The result proves that the hybrid energy storage-based control system can efficiently improve the stability of PV grid-injected power.
