农业科技与装备
農業科技與裝備
농업과기여장비
AGRICULTURAL SCIENCE & TECHNOLOGY AND EQUIPMENT
2015年
1期
47-50
,共4页
分布式电源%配电网%潮流计算%前推回代
分佈式電源%配電網%潮流計算%前推迴代
분포식전원%배전망%조류계산%전추회대
distributed generation%distribution network%power flow calculation%back/forward sweep
配电网在接入分布式电源后会发生很大变化,使传统的潮流计算方法无法满足计算要求。根据PQ型、PV型及PQ(V)型节点模型的技术特点,对其进行适当处理后,在阐述前推回代法基本原理的基础上,提出改进后的潮流计算方法。应用该方法在IEEE33节点系统上进行仿真计算,计算不同类型DG在接入位置、容量及布局变化时对系统电压的影响,验证各种情况下该算法的收敛性。
配電網在接入分佈式電源後會髮生很大變化,使傳統的潮流計算方法無法滿足計算要求。根據PQ型、PV型及PQ(V)型節點模型的技術特點,對其進行適噹處理後,在闡述前推迴代法基本原理的基礎上,提齣改進後的潮流計算方法。應用該方法在IEEE33節點繫統上進行倣真計算,計算不同類型DG在接入位置、容量及佈跼變化時對繫統電壓的影響,驗證各種情況下該算法的收斂性。
배전망재접입분포식전원후회발생흔대변화,사전통적조류계산방법무법만족계산요구。근거PQ형、PV형급PQ(V)형절점모형적기술특점,대기진행괄당처리후,재천술전추회대법기본원리적기출상,제출개진후적조류계산방법。응용해방법재IEEE33절점계통상진행방진계산,계산불동류형DG재접입위치、용량급포국변화시대계통전압적영향,험증각충정황하해산법적수렴성。
Distribution network will be changed greatly when some distributed generations (DGs) are added into it. This makes traditional method of power flow calculation failed. Therefore, an improved method which based on traditional back/forward sweep algorithm will be presented in this paper. According to the technical features of PQ model, PV model and PQ (V) model, some modifications were made for meeting the requirements of the improved method, and then it raised the improved power flow calculation method based on the explanation of basic theory of back/forward sweep algorithm. In the end, plenty of simulations with IEEE 33 buses system were carried out to illustrate the performance of the proposed method, stated the influence of different types of DG to system voltage during the changes of insert position, capacity and layout, and verified the convergence of the method in various situations.