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| Study on optimal operation of unit combination based on power market environment |
| Wang Li1, Du Jiyuan2 |
1. Guangdong Power Grid Co., Ltd, Guangzhou 510600;
2. Xi’an Kaitian Power Electronics Technology Co., Ltd, Xi’an 710000; |
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Abstract Unit commitment problem is an important part of economy dispatch in power system and a basic problem of short term generation schedule. It had been studied for many years and been used broadly. Its benefit is very remarkable. The basic assignment of unit commitment problem is to make the total cost of generation operating minimum by electing proper generators in system. At the same time we must know the system load demand of the short future and satisfy the some constraints, e.g. load demand, spinning reserve, the constraint of generation itself and other constraints. This paper proposes a new mathematic function of Unit commitment problem in power market which is based on the traditional Unit commitment function. Then give an example of IEEE 26 generators, 24 buses, 38 lines system and system load demand in one day, calculated its 24 hours’ Unit commitment, using the Dynamic programming with order of priority to limit the number of Unit commitment state. In this method, the economic dispatch of system load among generators of different Unit commitment state is solved by Dynamic programming also, inside of the traditional equal Incremental. At the end, the calculated result will show the effect and efficiency of this method.
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Received: 27 November 2018
Published: 19 August 2019
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| Cite this article: |
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Wang Li,Du Jiyuan. Study on optimal operation of unit combination based on power market environment[J]. Electrical Engineering, 2019, 20(8): 38-44.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2019/V20/I8/38
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[1] 赵霞, 叶晓斌, 杨仑, 等. 网省两级AGC机组协调调度的二层规划模型[J]. 电工技术学报, 2018, 33(20): 4876-4887.
[2] 张大波, 朱志鹏, 连帅. 考虑发电计划的电网阻塞疏导UPFC配置研究[J]. 电气技术, 2018, 19(6): 14-19.
[3] 张津玮, 顾秀芳. 基于Gurobi的抽水蓄能电站优化运行分析[J]. 电气技术, 2018, 19(2): 22-26.
[4] 仲启树, 唐志军, 金涛. 基于部分左特征结构配置的电力系统优化阻尼控制[J]. 电工技术学报, 2018, 33(13): 3012-3022.
[5] 赵冬梅, 殷加玞. 考虑源荷双侧不确定性的模糊随机机会约束优先目标规划调度模型[J]. 电工技术学报, 2018, 33(5): 1076-1085.
[6] 赵彪, 孙智华, 宗薇薇. 含风/火/水发电的电力系统中长期优化调度[J]. 电气技术, 2016, 17(9): 34-38.
[7] Wang S J, Shahidehpour S M, Kirschen D S, et al.Short-term generation scheduling with transmission and environmental con- straints using an augmented lagrangian relaxation[J]. IEEE Transactions on Power Systems, 1995, 10(3): 1294-1301.
[8] Wang C, Shahidehpour S M.Effects of ramp-rate limits on unit commitment and economic-dispatch in corporating rotor fatigue effect[J]. IEEE Transactions on Power Systems, 1994, 9(3): 1539-1545.
[9] 袁燕玲, 邓长虹. 基于动态规划法的电力市场下最优发电计划的实现[J]. 现代电力, 2003, 20(3): 30-34.
[10] 王鹏. 发电市场合约管理与机组组合问题研究[D]. 北京: 华北电力大学, 2001. |
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2019, Vol. 20 
