The market illiquidity and inflexible demand response (DR) participation are within the main restrictions in today's existing intra-day (ID) market. This paper proposes a modified ID market which enables direct transactions of updated forecast information regarding power deviations instead of trading deviated power. The modification brings about no significant challenges for participants as suppliers still submit offers revealing the quantity of power deviations despite the deviated power would be settled in real-time (RT) market, while purchasers decide on the optimal behaviors in RT market based on their own judgment on RT market prices with the purchased information instead of directly offsetting the deviated power of suppliers. The flexibility of DR participation could be promoted since DR providers as purchasers no longer have to bid when the ID offers arrive, because the information sold to others would not be removed from the order book and could be purchased by multiple participants. As a result, the modified ID market attracts more participants, and the more purchasers there are, the lower costs each purchaser will pay, thus the market liquidity could be improved. Finally, only effective information can be paid to suppliers so they are restrained from untruthfully revealing the actual forecast when submitting offers and improvement on wind power forecast accuracy can be encouraged. Case studies further illustrate the feasibility and efficiency of the modified ID market.

中文翻译：

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修改后的日内交易市场，用于交易更新的风电集成预测信息

市场缺乏流动性和不灵活的需求响应（DR）参与在当今现有的当日（ID）市场的主要限制之内。本文提出了一种经过修改的ID市场，它可以直接交易有关功率偏差的更新的预测信息，而不是交易偏差的功率。修改不会给参与者带来任何重大挑战，因为尽管偏差的功率将在实时（RT）市场中解决，但供应商仍提交要约以揭示功率偏差的数量，而购买者则根据自己的意愿决定RT市场的最佳行为。用所购买的信息来判断实时市场价格，而不是直接抵消供应商的力量偏差。可以提高灾难恢复参与的灵活性，因为灾难恢复提供者作为购买者在ID报价到达时不再需要竞标，因为出售给其他人的信息不会从订单簿中删除，而是可以由多个参与者购买。结果，经过修改的ID市场吸引了更多的参与者，并且购买者越多，每个购买者将支付的成本越低，从而可以改善市场流动性。最后，只有有效的可以向供应商支付信息，这样就可以避免他们在提交报价时不正确地透露实际预测，并且可以鼓励改善风电预测的准确性。案例研究进一步说明了修改后的ID市场的可行性和效率。