基于特征时段提取的月度发电计划与安全校核模型  

Monthly Generation Scheduling and Security Correction Model Based on Characteristic Time Periods

作　　者：张传成[1] 许丹[1] 戴赛[1] 丁强[1] 董炜[1] 朱泽磊[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2016年第11期3342-3347,共6页Power System Technology

基　　金：国家电网公司科技项目(DZB17201400047)~~

摘　　要：针对月度发电计划编制的高维度、大规模优化问题,提出基于局部最小偏差的分段线性化方法,提取负荷等发用电曲线的特征时段,大幅缩减了计算规模。考虑市场化改革下中长期电量调控的刚性转变对月度发、输电量校核和调整的要求,提出电力电量解耦的发电计划和安全校核模型。模型中引入输电通道的传输电量做为决策变量,评估了输电通道输送能力需求,校核了月度电量能否满足交易执行和电网运行的要求,实现了月度发电计划优化与电力电量安全校核的一体化建模和求解。通过建立输电通道与机组负荷的网络特性约束,保证了输电通道传输电量求解的合理性。IEEE 118节点系统的仿真分析验证了所提模型和算法的有效性。In view of high dimension and large scale optimization of monthly generation scheduling, a piecewise linearization method based on local minimum deviation is proposed, extracting characteristic time periods of load and other power curves to significantly decrease model scale. Considering strengthened rigid requirement of dispatch control of medium-long term electric energy in power market reform, a monthly generation scheduling and security correction model is developed with power-energy decoupling. In the model, transmission energy is introduced as decision variable evaluating transmission capacity requirements of transmission channel. Based on this, monthly electric energy is checked whether requirements of transaction execution and power grid operation are satisfied, thus integrated modeling and solving for monthly generation schedule optimization and security correction is realized. Network performance constraints among generating units, load and transmission channel ensure rationality of transmission energy solution on transmission channels. Simulation in IEEE 118-bus system demonstrates effectiveness of the proposed model and algorithm.

关 键 词：分段线性 特征时段 月度发电计划 安全校核 输电通道 

分 类 号：TM73[电气工程—电力系统及自动化]