Optimal Planning of Power Systems with Flexible Resources for High Penetrated Renewable Energy Accommodation

doi:10.16183/j.cnki.jsjtu.2022.269

Abstract

Abstract:

High penetrated renewable energy has brought great challenges to the flexibility of the power system due to its volatility and intermittency. To improve the capacity of renewable energy accommodation, the flexibility reformation of thermal power units, the construction of gas-fired units, and the electrical energy storage installation are considered as effective solutions. Thus, an optimization model for power system planning scheme considering multi-type flexible resources with their different output characteristics is established. The simulation results on a modified IEEE 24-bus power system and 12-node natural gas system demonstrate the effectiveness of the proposed model. In addition, the applicability of different flexible resource planning schemes is comprehensively evaluated from the perspectives of economy, accommodation capacity, and carbon reduction, so as to meet the different planning goals.

Key words: high penetrated renewable energy, flexibility resources, power system planning, scheme optimization

CLC Number:

TM715

GUO Yongtao, XIANG Yue, LIU Junyong. Optimal Planning of Power Systems with Flexible Resources for High Penetrated Renewable Energy Accommodation[J]. Journal of Shanghai Jiao Tong University, 2023, 57(9): 1146-1155.

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灵活性资源	安装节点	容量	投资成本×10^-4 / (元·MW^-1)
燃气轮机#1	Bus 23	110 MW	182
燃气轮机#2	Bus 20	120 MW	180
燃气轮机#3	Bus 13	100 MW	182
燃气轮机#4	Bus 10	110 MW	182
储能#1	Bus 6	100 MW·h	140
储能#2	Bus 4	80 MW·h	142
储能#3	Bus 11	100 MW·h	140
储能#4	Bus 24	100 MW·h	144
待改造的火电机组G1~G10	—	—	50

规划方案	规划结果
方案1,火电灵活性改造	火电改造机组G1, G3, G9
方案2,投建燃气机组	投建燃气轮机#1燃气轮机#2 燃气轮机#3燃气轮机#4
方案3,投建储能	投建储能#1储能#2储能#3

方案	C_op	C_inv	C
初始状态	2.6765	—	2.6765
方案1	1.6830	0.0275	1.7105
方案2	1.6297	0.0323	1.6620
方案3	1.6583	0.0166	1.6749

方案	C₁+C₂	C₃	C₄	C₅	C_op
初始状态	2.1144	0.2677	0.0535	0.2409	2.6765
方案1	1.3489	0.2523	0.0224	0.0869	1.7105
方案2	1.3382	0.2302	0.0126	0.0810	1.6620
方案3	1.3239	0.2603	0.0083	0.0824	1.6749

规划方案	灵活性充裕度/ (MW·min^-1)		灵活性不足度/ (MW·min^-1)		灵活性充足率
规划方案	上调	下调	上调	下调	上调	下调
初始	2.5175	2.7683	0.0145	0.0204	0.9003	0.8760
改造	2.5242	2.7744	0.0000	0.0085	1.0000	0.9587
燃气	2.5242	2.7776	0.0000	0.0025	1.0000	0.9703
储能	2.5144	2.7774	0.0119	0.0000	0.9034	1.0000