自然约束 meaning in English
natural constraint
Examples
- Secondly , their aims are made the investment of substations , feeders or running cost of electric power system minimum . but they do n ' t take into account of land utilization , street accessibility of right of way , etc . , but demands of electric power system . generally , a straight line distance , namely , euclid distance , was used for calculating the distance between a load point and a substation , which is a straight forward but non - practical way for most planning techniques
其次受研究工具的限制，这些模型以工程投资、运行费用等最小为目标，仅能考虑导线载流量、电压降等电力系统技术约束条件，简化略去了用地限制、街道可达性等重要的自然约束条件，且求解这些模型的前奏是计算负荷点到变电所的欧几里得距离(直线距离) ，简便但不切合实际(这一点在城市电网规划中尤其重要) ，因此较难给出技术上可行的最优解。