Research on Optimal Allocation of Multi-Energy Complementary Project of Wind-Solar-Thermal Integration

doi:10.12096/j.2096-4528.pgt.21101

Abstract

Abstract:

Multi-energy complementary project of wind-solar-thermal integration can play a coordinating and mutually beneficial role among different generations, and is one of the implementation paths for safe and efficient use of renewable energy, and achieving carbon neutrality and carbon peak. How to reasonably match the installed capacity of thermal power, wind power, photovoltaic power and the transmission capacity, to ensure the full consumption and efficient utilization of wind power and photovoltaic power, is the core issue of the multi-energy complementary project of wind-solar-thermal integration. Based on the analysis of the output characteristics and multi-energy complementary characteristics of different generations, an optimal allocation model of multi-energy complementary project of wind-solar-thermal integration was constructed with the objective of minimizing the total cost and maximizing the matching degree between the sending curve and the receiving load curve. The installed capacity of wind power, photovoltaic power and the transmission capacity were optimized at the planning level, and the thermal power operation mode, output curve and transmission curve were optimized at the operation level. According to the case analysis, the optimal allocation model can optimize and determine the installed capacity of wind power, photovoltaic power and the transmission capacity, so that different generations can coordinate with each other on monthly and daily time scales. The transmission curve is more friendly to the receiving-end grid, and the horizontal multi-energy complementary and longitudinal generation-load coordination are realized.

Key words: new energy, carbon neutrality, carbon peak, wind-solar-thermal integration, multi-energy complementary, optimal allocation, mixed integer programming

CLC Number:

TK019

Baozhong ZHOU, Dunnan LIU, Jiguang ZHANG, Yi LI, Erfeng XU, Sheng BI. Research on Optimal Allocation of Multi-Energy Complementary Project of Wind-Solar-Thermal Integration[J]. Power Generation Technology, 2022, 43(1): 10-18.

Figures/Tables 8

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序号i	电能成本/(元/MW)			开机成本/ (10⁶元/次)
序号i	a_i /10^-5	b_i	c_i	开机成本/ (10⁶元/次)
1和5	0.644	0.224	11.71	6
2和6	0.935	0.219	13.21	6
3和7	0.944	0.218	8.80	6
4和8	0.631	0.222	12.68	6

序号i	电能成本/(元/MW)			开机成本/ (10⁶元/次)
序号i	a_i /10^-5	b_i	c_i	开机成本/ (10⁶元/次)
1和5	0.644	0.224	11.71	6
2和6	0.935	0.219	13.21	6
3和7	0.944	0.218	8.80	6
4和8	0.631	0.222	12.68	6

电源类型	装机容量/MW	装机容量占比/%	年发电量/(亿kW·h)	年发电量占比/%	年利用时间/h
风电	7 889	53.3	190	41.3	2 405
光伏	2 096	14.2	40	8.7	1 894
火电	4 800	32.5	229	50.0	4 779

电源类型	装机容量/MW	装机容量占比/%	年发电量/(亿kW·h)	年发电量占比/%	年利用时间/h
风电	7 889	53.3	190	41.3	2 405
光伏	2 096	14.2	40	8.7	1 894
火电	4 800	32.5	229	50.0	4 779

季节	外送电量/ (亿kW·h)	风电电量占比/%	光伏电量占比/%	火电电量占比/%	火电运行方式
春季	104	56.7	10.7	32.6	开4停4
夏季	126	27.2	8.6	64.2	开8停0
秋季	123	41.5	7.6	50.9	开8停0
冬季	106	43.1	8.0	49.0	开6停2