摘要
高比例可再生能源发电并网构成了多种能源共同参与的电力系统新体系。梯级水电是具有良好调蓄性能的高灵活性的电源,能够作为一种补偿电源来平抑新能源发电波动,促进其电网消纳比例。提出了一种含梯级水电的水风光混合能源短期互补协调调度策略,该策略定义平稳性指标和源荷匹配指标为互补性评估指标,以协调控制出力波动和对负荷的追踪度与平滑效果;同时,从“源源互补”和“源荷匹配”两个不同角度构建调度模型,分别采用花粉算法与逐步优化算法优化求解目标问题;最后通过分析互补效果,总结水风光短期调度策略。通过案例验证了上述调度策略的有效性,为高比例水电电网大规模消纳新能源提供了新思路。
The power system shows a new structure consisting of hybrid powers with large-scale renewable energy incorporated into grid.As a power source with high flexibility,the cascade hydropower stations have good capacity for regulation and storage,which can be used as a compensation power to regulate and compensate the fluctuation of new energy power generation and increase the proportion of its grid consumption.A short-term complementary dispatch strategy for hydro-wind-PV hybrid energy with cascade hydropower stations is proposed,which defines the stability index and the source-load matching index as complementary evaluation indexes to coordinate and control the fluctuation of generation output and the tracking degree and smoothing effect of load.Meanwhile,the model are constructed from two different angles of“Source-source complements”and“Source-load matching”,which can be optimized by flower pollination algorithm and progress optimality algorithm respectively.Finally,by analyzing the complementary effects,the short-term complementary coordinated dispatch strategy for hydro-wind-PV hybrid energy is summarized.The results of case study verify the validity of the proposed dispatch strategy.This study provides a new idea for hydropower dominated power grid to consume the large-scale new energy power.
作者
谢航
朱燕梅
马光文
陈仕军
黄炜斌
XIE Hang;ZHU Yanmei;MA Guangwen;CHEN Shijun;HUA Weibin(State Key Laboratory of Hydraulics and Mountain River Engineering,Sichuan University,Chengdu 610065,Sichuan,China;Business School,Sichuan University,Chengdu 610065,Sichuan,China)
出处
《水力发电》
CAS
2021年第9期100-105,137,共7页
Water Power
基金
国家重点研发计划(2018YFB0905204)。
关键词
水风光互补特性
短期协调调度
梯级水电站
策略
hydro-wind-PV complementary characteristics
short-term coordinated dispatch
cascade hydropower station
strategy
