Modeling of Cloud-Edge Collaborated Electricity Market Considering Flexible Ramping Products Provided by VPPs

doi:10.16183/j.cnki.jsjtu.2023.240

Abstract

Abstract:

Due to its load time shifting and power regulation capabilities, virtual power plants (VPPs) have the potential to participate in the electricity market and provide flexible ramping products (FRPs). However, it is hard for VPPs to make accurate bidding in the market, due to the uncertainty of their dispatching capability and system requirements. Therefore, a cloud-edge collaborated market architecture supporting VPPs participation in the electricity market and providing FRPs services is proposed, and the corresponding distributed optimization trading model is established. The market clearing process is completed through the collaborative interaction between the independent system operator and VPPs, which can accurately guide VPPs to optimize the electricity consumption and provide flexible climbing services. The distributed optimization model is iteratively solved using the analytical target cascading (ATC) method, and heuristic constraints are introduced to improve the convergence of the algorithm. Finally, the proposed method is evaluated by the simulation results of typical cases featuring the “duck-curve” net load, which demonstrate that the cloud-edge collaborated market can effectively reduce operating costs and promote the consumption of renewable energy.

Key words: virtual power plant (VPP), flexible ramping product (FRP), cloud-edge collaboration, distributed optimization

CLC Number:

TM732

PENG Chaoyi, CHEN Wenzhe, XU Suyue, LI Jianshe, ZHOU Huafeng, GU Huijie, NIE Yongquan, SUN Haishun. Modeling of Cloud-Edge Collaborated Electricity Market Considering Flexible Ramping Products Provided by VPPs[J]. Journal of Shanghai Jiao Tong University, 2025, 59(2): 186-199.

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对象	购能费用/元
对象	场景1	场景2	场景3
VPP1	118392	91466	83668
VPP2	247826	208825	193741
VPP3	58615	50543	49760
VPP4	95285	89284	92085
VPP5	195258	150644	147212
VPP6	131562	99567	98282
VPP总计	846938	690328	664748
ISO	3285026	3051999	3026178

场景	集中式新能源利用率	分布式新能源利用率	新能源整体利用率
1	82.88	99.47	87.33
2	89.89	100.00	92.60
3	91.70	100.00	93.93

场景	ISO购买爬坡容量费用	传统发电商提供爬坡容量获利	VPP提供爬坡容量获利
1	48660	48660	0
2	7213	3358	3855
3	2037	973	1064

场景	平均迭代次数	VPP优化申报子问题平均求解时间/ms	ISO优化出清子问题平均求解时间/ms
1	2.2	24.9	217.1
2	14.9	113.3	302.5
3	11.6	104.9	302.7

单次优化出清时长/h	算法收敛成功率/%
单次优化出清时长/h	引入启发式约束条件	未引入启发式约束条件
3	100.00	100.00
6	100.00	98.96