黑龙江电力
黑龍江電力
흑룡강전력
Heilongjiang Electric Power
2015年
5期
377-380
,共4页
光伏电源%弱电网%电网阻抗%准入功率
光伏電源%弱電網%電網阻抗%準入功率
광복전원%약전망%전망조항%준입공솔
photovoltaic power%weak network%grid impedance%penetrationlevel
针对光伏电源接入弱电网引起电压越限的问题,提出了利用电网阻抗来求取准入功率的方法. 通过光伏电源接入弱电网潮流分析模型和功率传输过程中功率和电压的关系,把电压不越限的约束条件表达为光伏电源准入功率与电网阻抗之间的函数关系,克服了传统方法中重复潮流法计算量大、费时的缺点. 通过对IEEE33节点配电网的计算分析,验证了该方法的合理性和可行性.
針對光伏電源接入弱電網引起電壓越限的問題,提齣瞭利用電網阻抗來求取準入功率的方法. 通過光伏電源接入弱電網潮流分析模型和功率傳輸過程中功率和電壓的關繫,把電壓不越限的約束條件錶達為光伏電源準入功率與電網阻抗之間的函數關繫,剋服瞭傳統方法中重複潮流法計算量大、費時的缺點. 通過對IEEE33節點配電網的計算分析,驗證瞭該方法的閤理性和可行性.
침대광복전원접입약전망인기전압월한적문제,제출료이용전망조항래구취준입공솔적방법. 통과광복전원접입약전망조류분석모형화공솔전수과정중공솔화전압적관계,파전압불월한적약속조건표체위광복전원준입공솔여전망조항지간적함수관계,극복료전통방법중중복조류법계산량대、비시적결점. 통과대IEEE33절점배전망적계산분석,험증료해방법적합이성화가행성.
Aiming at the out-of-limit voltage when the photovoltaic power connects into a weak network, a meth-od to calculate the penetration level using grid impedance was proposed. Based on the power flow analysis model and the relations between voltage and power in the power transmission process, the constraint conditions of voltage were expressed as a function of the relationship between the penetration level and grid impedance. It is a method that overcomes the shortcomings of complex calculation and time consuming. The rationality and feasibility of this method were tested and verified by IEEE 33 nodes system.
