| 引用本文: | 袁泉,吴云亮,李豹,等.计及源荷不确定性的多时间尺度滚动调度计划模型与方法[J].电力系统保护与控制,2019,47(16):8-16.[点击复制] |
| YUAN Quan,WU Yunliang,LI Bao,et al.Multi-timescale coordinated dispatch model and approach considering generation and load uncertainty[J].Power System Protection and Control,2019,47(16):8-16[点击复制] |
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| 摘要: |
| 考虑风电和负荷预测偏差随时间尺度变化的规律以及分时电价条件下负荷响应偏差，综合表述系统运行的不确定性因素及其影响，提出了一种基于偏差预控的负荷调度模式。为实现风电、慢机、快机以及价格型和激励型需求响应在不同时间尺度上逐级协调优化的潜力，构建了“日前-日内-实时”多时间尺度滚动调度计划模型。算例结果验证了决策模型与求解的有效性，并进一步分析了不确定性因素对调度计划的影响以及多时间尺度经济运行域滚动决策的效果。提高不确定因素的预测精度以提升系统整体运行水平的同时，应充分考虑不确定性偏差随时间尺度的变化规律和不同类型资源的互补特征。在系统可靠运行的前提下，可根据系统运行不确定因素的偏差大小同步滚动生成不同时间尺度的经济运行域，进一步增强系统运行的经济性。 |
| 关键词: 风电 需求响应 调度计划 多时间尺度 不确定性 经济运行域 |
| DOI：10.19783/j.cnki.pspc.181123 |
| 投稿时间：2018-08-31修订日期：2018-12-14 |
| 基金项目:国家自然科学基金项目资助(51777102);中国南方电网公司“电力市场环境下备用容量评估与规划”研究项目资助 |
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| Multi-timescale coordinated dispatch model and approach considering generation and load uncertainty |
| YUAN Quan,WU Yunliang,LI Bao,SUN Yujun,LAI Xiaowen,ZHONG Haiwang |
| (CSG Power Dispatching Control Center, Guangzhou 510663, China;Beijing Tsintergy Technology Co., Ltd., Beijing 100084, China;Department of Electrical Engineering, Tsinghua University, Beijing 100084, China) |
| Abstract: |
| The uncertain factors and their effects on system operation are comprehensively explained in this paper, of which the laws of wind and load prediction errors on different time scales and load response deviation under time-of-use price are both considered. And a load dispatch mode based on the pre-control of the deviation is proposed as well. To realize the potential of cooperatively optimization of the wind power, conventional unit, fast unit, price-based and incentive-based demand response, this paper develops a rolling dispatch model on “day ahead-in day-real time” scales. Case study verifies the effectiveness of the model and solving methods, and also analyzes the way in which the uncertain factors affect the dispatch plan. And the optimal results of the multi-timescale rolling decision on economic operation area are verified as well. Although dispatch plans could be optimized by improving the prediction accuracy, the change laws of uncertain factor deviation on multi-time scales and complementary characteristics of different resources should be considered as well. On condition that reliability constrains are satisfied, the economic operation area of different time scales could be decided by the deviation size of uncertain factors on the same time-scale, thus the cost of the system operation could be reduced. This work is supported by National Natural Science Foundation of China (No. 51777102) and China Southern Power Grid Company “Reserve Capacity Assessment and Planning under Electricity Market Environment”. |
| Key words: wind power demand response dispatch multi-timescale uncertainty economic operation area |
