Journal of Shanghai Jiao Tong University ›› 2025, Vol. 59 ›› Issue (2): 221-229.doi: 10.16183/j.cnki.jsjtu.2023.312

• New Type Power System and the Integrated Energy • Previous Articles     Next Articles

A Strategy for Smoothing Power Fluctuations of New Energy Based on Improved Power Prediction Accuracy and Market Transaction

LIANG Yiheng1,2, YANG Dongmei1,2, LIU Gang1,2, YE Wenjie1,2, YANG Yize1,2, QIAN Tao3, HU Qinran3()   

  1. 1. NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211100, China
    2. NARI Technology Co., Ltd., Nanjing 211100, China
    3. School of Electrical Engineering, Southeast University, Nanjing 210096, China
  • Received:2023-07-12 Revised:2023-09-18 Accepted:2023-09-19 Online:2025-02-28 Published:2025-03-11

Abstract:

The uncertainty of new energy results in power prediction errors, causing new energy producers to bear high wind curtailment losses and deviation penalties due to bidding deviations. To address these issues, this paper proposes a feature-constrained multi-layer perception (MLP) power prediction algorithm, combined with storage-based bilateral transactions, to provide power support and reduce bidding deviations. First, the MLP model is enhanced by improving the relevancy of the hidden layers through adaptive learning, which strengthens its ability to capture nonlinear rules in input data and improves power prediction accuracy. Then, the algorithm allows for bilateral transactions between new energy producers and storage enterprise before entering the day-ahead market, helping mitigate the penalties associated with prediction errors including deviation and curtailment costs. Finally, the case study demonstrates that the feature-constrained MLP effectively improves the power prediction accuracy. Additionally, engaging in bilateral transactions with storage enterprise significantly reduces the costs incurred by new energy producers due to bid deviations.

Key words: new energy power prediction, feature-constrained multi-layer perception (MLP), bilateral transaction

CLC Number: