园区级-设备级电压暂降协同治理优化方案及其投融资策略

Optimal cooperative governance scheme of park-level and equipment-level voltage sag and its investment and financing strategy

工业用户在生产过程中受电压暂降影响承受着巨大的经济损失,对电压暂降治理有强烈需求。为了经济、高效地治理园区电压暂降问题,提出一种园区级-设备级电压暂降协同治理优化方案及其投融资策略。考虑治理装置技术指标特性,根据用户敏感设备的耐受时间,将敏感设备分组,分别采用园区级和设备级治理;根据敏感设备的耐受电压,对设备级治理再进行分组,实现设备级多级治理。考虑园区级和设备级治理装置的购置、运维、安装等成本,以园区净收益最大为目标,满足分组电压、容量等约束,建立园区级-设备级电压暂降协同治理优化模型。提出一种考虑博弈关系和成本合理分摊的公私合营模式作为投融资策略,明确划分园区管委会、用户的成本分摊比例,实现各参与方投资收益比相等。对西南地区某工业园区进行实例分析,结果表明所提园区级-设备级电压暂降协同治理优化方案经济、可行,可为推动各方参与的电压暂降市场化解决方案提供思路。

Industrial users are affected by voltage sags in the production process and bear huge economic losses,so they have a strong demand for voltage sag governance. In order to solve the voltage sag problem economically and efficiently,an optimal cooperative governance scheme of park-level and equipment-level voltage sag and its investment and financing strategy are proposed. Considering the technical index characteristics of governance devices and according to the tolerance time of users’ sensitive equipment,the sensitive equipment is grouped into two groups,which are governed with park-level and equipment-level respectively. According to the tolerance voltage of sensitive equipment,the equipment-level governance is grouped again to achieve multi-level governance. Considering the purchasing cost,operation and maintenance cost and installation cost of park-level and equipment-level governance devices,the optimal cooperative governance model of park-level and equipment-level voltage sag is established with the maximum net income of the park as its objective with meeting the constraints of grouping voltage,capacity,and so on. A PPP(Public Private Partnership) mode considering game relationship and reasonable cost allocation is proposed as the investment and financing strategy,which clearly divides the cost allocation proportion of park management committee and users,and achieves the equal investment return ratio of each participant. The example of an industrial park in Southwest China is analyzed and the results show that the proposed optimal cooperative governance scheme of park-level and equipment-level voltage sag is economic and feasible,which can provide ideas for promoting the market-oriented solutions of voltage sags involving all parties.