摘要
特高压工程具有建设规模大、电压等级高、设计复杂等特点。对特高压工程造价进行定量分析有助于增强各施工单位和管理部门成本控制和施工管理水平,提高经济效益。首先,对特高压工程造价进行了费用分析并利用其数字特征构建波动率指标。然后,通过费用占比对特高压工程相对造价进行了分析。将特高压变电工程与500 kV变电工程数据进行对比,分析了各自的特点。接着,用主成分分析法对特高压工程造价费用进行分析,构建评估系数筛选造价管控对象。最后,通过特高压变电工程和换流站工程分析结果的对比,给出一定定量结论。
UHV project has the characteristics of large-scale construction, high voltage level and complicated design. Quantitative analysis of UHV project cost will help to enhance the cost control and construction management level of construction organizations and management departments and improve economic efficiency. First, the cost analysis of UHV project is carried out and a volatility index is established by numerical characteristics. Then, the relative cost of UHV project is analyzed by the cost proportion. The characteristics of UHV substation project and 500 kV substation project are compared and analyzed. Then, the principal component analysis method is used to analyze the cost of the UHV project and to establish the evaluation coefficient to select the cost control object. Finally, a quantitative conclusion is given by quantitative analysis and comparison of UHV substation project and converter station project.
