基于负载均衡的含风电场电力系统优化调度方法  

Load Balance-Based Optimal Dispatching Method for Power Systems With Wind Farms

作　　者：马燕峰[1] 陈磊[1] 蒋云涛[1] 赵书强[1] 

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),河北省保定市071003

出　　处：《电网技术》2017年第9期2784-2791,共8页Power System Technology

基　　金：国家重点研发计划资助项目(2017YFB0902203);教育部中央高校基本科研业务费专项资金资助项目(2016MS86);河北省自然科学基金项目(E2017502077)~~

摘　　要：随着风电并网容量的增加,大功率风电爬坡事件给电力系统调度带来了巨大的风险,研究相应的含风电场电力系统的调度策略十分必要。根据风电爬坡特性的特点,建立了风电爬坡事件模型,进而建立考虑风电爬坡约束的含风电场电力系统优化调度模型;借鉴负载均衡算法,提出了一种常规机组出力的重调度方法;并将其应用于风火系统调度,制定联合调度策略;通过对发生不同剧烈程度风电爬坡事件的计算,验证模型和调度策略的有效性。结果表明,通过负载均衡算法的应用,常规机组能有效平衡风电爬坡事件发生引起的风电功率缺额,保证系统爬坡容量的实际需求。With increase of wind power penetration in power system, wind power ramp events pose serious operational risk to power system dispatching. It is necessary to study dispatching strategies for power systems with wind power integrated. Based on wind power ramping characteristics, a wind power ramp event model is developed, and an optimal dispatching model considering wind power ramp event constraint is constructed. Dispatching strategy of thermal power units is proposed by adopting load balancing algorithm, and applied to dispatching of power systems with wind power. Effectiveness of the model and algorithm is verified by dispatching results of power systems with wind power ramp events at different levels. The results prove that by adopting load balancing algorithm, thermal units can effectively balance wind power vacancy caused by wind power ramp events and ensure demand of actual ramp capacity in power system.

关 键 词：风电爬坡事件 优化调度模型 负载均衡 旋转备用 调度策略 

分 类 号：TM73[电气工程—电力系统及自动化]