考虑断面负载率的县域内部新能源电力自平衡交易调度策略研究

doi:10.3969/j.issn.2097-0706.2022.07.008

摘要/Abstract

摘要：

“双碳”目标下,随着新能源并网规模逐渐增大,新能源出力的随机性和波动性将会进一步影响系统安全稳定运行。针对县域对外联络线断面负载率频繁波动的问题,提出一种考虑断面负载率的县域内部新能源电力自平衡交易调度策略,建立考虑断面负载率的日前-实时双层交易联合优化模型。仿真计算表明,该策略相比于仅运用储能技术的单纯物理方法来说,可以显著提升新能源就地消纳率,减少联络线潮流波动,优化断面负载率,维护电网稳定。

关键词: 碳中和, 新能源并网, 断面负载率, 县域, 电力自平衡, 调度策略, 新型电力系统

Abstract:

The grid-connected new energy is expanding in the context of "dual carbon" targets. But the random and volatile outputs of new energy will affect the safe and stable operation of power systems. In view of the frequent fluctuation of tie lines' section load rates in rural areas,a county-level self-balance transaction scheduling strategy for new energy considering section load rate is proposed. Taking the section load rate into consideration,a joint optimization bi-level transaction model of day-ahead and real-time market is made. The simulation calculation shows that the strategy can significantly improve the local consumption rate of new energy. Compared with the simple physical method taking energy storage technology only, the proposed strategy can relieve the tie line power flow fluctuation, optimize the section load rate and maintain the stability of power grid.

Key words: carbon neutrality, new energy grid connection, section load rate, county, self balance of power, scheduling strategy, new power system

中图分类号:

TK01：TM614

路尧, 顾晓希, 尹硕, 陈兴, 金曼. 考虑断面负载率的县域内部新能源电力自平衡交易调度策略研究[J]. 综合智慧能源, 2022, 44(7): 66-72.

LU Yao, GU Xiaoxi, YIN Shuo, CHEN Xing, JIN Man. Research on county-level self-balance transaction scheduling strategy for new energy considering section load rate[J]. Integrated Intelligent Energy, 2022, 44(7): 66-72.

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类型	额定功率/kW	维护成本/ [美元·(kW·h)^-1]	出力上限/kW	出力下限/kW	爬坡率/（kW·min^-1）
风电机组	140	0.050 0	140	10	5
光伏阵列	180	0.001 6	180	0	—

额定功率/kW	排量/L	压缩比	燃气消耗/ [m³·（kW·h)^-1]	尺寸（长×宽×高）/mm
200	14.0	10.5∶1.0	<0.50	3 000×1 150×1 780
250	18.9	9.5∶1.0	<0.50	3 440×1 550×2 200
300	18.9	9.5∶1.0	<0.50	3 440×1 550×2 200
350	37.8	9.5∶1.0	<0.50	3 440×1 550×2 200
400	37.8	9.5∶1.0	<0.50	4 300×2 300×2 400
450	37.8	9.5∶1.0	<0.50	4 300×2 300×2 400
500	37.8	9.5∶1.0	<0.50	4 300×2 300×2 400
600	50.3	9.5∶1.0	<0.50	5 652×2 286×2 441