摘要
在目前常用的双馈机潮流计算模型基础上,根据双馈电机有功特性,提出了双馈机在恒功率因数运行方式下的两种简化潮流计算模型。其一是在计算转子侧有功时忽略定、转子绕组损耗,另一简化模型则直接将双馈风电机组看成能处理成PQ节点的传统发电机参与潮流计算,这使得潮流计算过程大为简化。此外,在风电场等效环节计及了风电场内部变压器的损耗。最后在一含风电场的系统中对此模型进行了验证,结果表明简化计算模型是合理可行的。
Based on the commonly-used power flow calculation model and the characteristics of active power of doubly-fed induction generator （DFIG）, two simplified calculation models of DFIG which is in the mode of constant power factor are proposed. First, when calculating the active power of rotor side, the winding power loss of the stator and rotor is not taken into account, in the other model the wind power generator is directly considered as the conventional generator which can be treated as PQ node. The process of power flow calculation can be dramatically simplified due to the usage of the simplified models. Besides, while carrying out the equivalent calculation of wind farm, power loss of transformers is considered. At last the power flow calculation using the simplified models is performed for a power system connected with wind power, and calculation results show that both simplified calculation models are reasonable and feasible.
出处
《电气自动化》
2009年第4期21-23,共3页
Electrical Automation
基金
山东电力集团重大科技项目子课题(2008A-03-4)
关键词
双馈发电机
简化计算模型
变压器损耗
潮流计算
doubly-fed induction generator （DFIG） simplified calculation model power loss of transformer power flow calculation
