CAJ | 학술논문

日负荷曲线变化特性受到多种外在因素的影响，政策因素是其中的一个重要方面。以深圳市日负荷曲线变化特性为例，分析了分时电价、阶梯电价和节能家电补贴三种政策的实施对负荷特性的影响。构建了 Sigmoid函数模型反映用户对于电价变化的用电功率响应特性，分析执行分时电价后的负荷转移量及日负荷曲线的变化特性；通过对深圳市阶梯电价实施前后工作日负荷相对于上一年同一月份中平均最高气温最为接近一周的工作日负荷的增长情况进行对比，分析阶梯电价政策实施对负荷特性的影响；通过对各种节能家电的节电效果进行测算，并结合居民对各种家电的使用习惯，分析了节能家电推广使用对负荷特性的影响。分析结果表明，三种政策的实施能够有效缓解电力供应紧张，降低峰谷差。
일부하곡선변화특성수도다충외재인소적영향，정책인소시기중적일개중요방면。이심수시일부하곡선변화특성위례，분석료분시전개、계제전개화절능가전보첩삼충정책적실시대부하특성적영향。구건료 Sigmoid함수모형반영용호대우전개변화적용전공솔향응특성，분석집행분시전개후적부하전이량급일부하곡선적변화특성；통과대심수시계제전개실시전후공작일부하상대우상일년동일월빈중평균최고기온최위접근일주적공작일부하적증장정황진행대비，분석계제전개정책실시대부하특성적영향；통과대각충절능가전적절전효과진행측산，병결합거민대각충가전적사용습관，분석료절능가전추엄사용대부하특성적영향。분석결과표명，삼충정책적실시능구유효완해전력공응긴장，강저봉곡차。
Changing characteristic of daily load curve is affected by various external factors and policy factor is one of impor-tant aspects.Taking changing characteristic of daily load curve of Shenzhen city for an example,affect on load characteris-tic by implementation of three policies including time-of-use price,step electricity price and subsidies for energy-saving appli-ances.Sigmoid function model was constructed to reflect electric power response characteristic of customers on change of e-lectricity price and analyze changing characteristics of load transfer amount and daily load curve after implementing time-of-use price.By comparing load increase in working days of one week before and after implementation of step electricity price in Shenzhen city with that in the same month of last year with nearest average highest temperature,affect on load character-istic by implementation of step electricity price.By measuring and calculating effects of electricity saving of various energy-saving appliances and considering habits of residents on various appliances,affect on load characteristic by promotion and use of energy-saving appliances was analyzed.Results indicate that implementation of these three policies could effectively ease tension of electric power supply and reduce difference between peak and valley.