Constructing an industrial system for a large-scale,non-grid-connected wind power industry is a key step towards the diverse utilization of wind power.However,wind power exploitation is not only a technical challenge ...Constructing an industrial system for a large-scale,non-grid-connected wind power industry is a key step towards the diverse utilization of wind power.However,wind power exploitation is not only a technical challenge but an industrial problem as well.The objective of this study is to introduce a concept of large-scale,non-grid-connected wind power(LSNGCWP) industrial zones and establish an evaluation model to assess their industrial arrangement.The data of wind energy,industry,nature resources and socio-economy were collected in this study.Using spatial overlay analysis of geographic information system,this study proposes a spatial arrangement of the LSNGCWP indus-trial zones in the coastal areas of China,which could be summarized as the 'one line and three circles' structure,which will contribute to the optimization of the industrial structure,advance the wind power technology,coordinate the multi-industrial cooperation,and upgrade the industrial transformation of China's coastal areas.展开更多
大规模风电并网系统在受到大功率缺额扰动后,电网会出现频率骤降,而低频减载(Under Frequency Load Shedding,UFLS)控制是防止频率失稳的有效手段。首先,基于含UFLS的改进系统频率响应模型(System Frequency Model,SFR),研究了新型电力...大规模风电并网系统在受到大功率缺额扰动后,电网会出现频率骤降,而低频减载(Under Frequency Load Shedding,UFLS)控制是防止频率失稳的有效手段。首先,基于含UFLS的改进系统频率响应模型(System Frequency Model,SFR),研究了新型电力系统受到大功率扰动下的频率特征,基于经典频率响应模型建立改进的系统频率响应模型,考虑火电、风电联合调频控制策略,并引入UFLS频率控制;然后,根据所建立的系统频率响应模型对大规模风电并网系统参数进行整定,并建立多资源参与调频下的大规模风电并网系统频率特征表达式;最后,通过Matlab/Simulink仿真平台,验证UFLS控制策略参与调频的可行性及UFLS控制参数对频率调制效果的影响。展开更多
基金Under the auspices of National Basic Research Program (No.2007CB210306)
文摘Constructing an industrial system for a large-scale,non-grid-connected wind power industry is a key step towards the diverse utilization of wind power.However,wind power exploitation is not only a technical challenge but an industrial problem as well.The objective of this study is to introduce a concept of large-scale,non-grid-connected wind power(LSNGCWP) industrial zones and establish an evaluation model to assess their industrial arrangement.The data of wind energy,industry,nature resources and socio-economy were collected in this study.Using spatial overlay analysis of geographic information system,this study proposes a spatial arrangement of the LSNGCWP indus-trial zones in the coastal areas of China,which could be summarized as the 'one line and three circles' structure,which will contribute to the optimization of the industrial structure,advance the wind power technology,coordinate the multi-industrial cooperation,and upgrade the industrial transformation of China's coastal areas.
文摘大规模风电并网系统在受到大功率缺额扰动后,电网会出现频率骤降,而低频减载(Under Frequency Load Shedding,UFLS)控制是防止频率失稳的有效手段。首先,基于含UFLS的改进系统频率响应模型(System Frequency Model,SFR),研究了新型电力系统受到大功率扰动下的频率特征,基于经典频率响应模型建立改进的系统频率响应模型,考虑火电、风电联合调频控制策略,并引入UFLS频率控制;然后,根据所建立的系统频率响应模型对大规模风电并网系统参数进行整定,并建立多资源参与调频下的大规模风电并网系统频率特征表达式;最后,通过Matlab/Simulink仿真平台,验证UFLS控制策略参与调频的可行性及UFLS控制参数对频率调制效果的影响。