Load-storage combined optimization operation method based on demand response

Abstract

The invention discloses a load-storage combined optimization operation method based on demand response. The method comprises the steps of 1 collecting original data; 2 establishing constraint conditions; 3 calculating the power grid power supply load, the demand response implementation cost, the energy storage power station cost and the daily income of the energy storage power station in the ith time period after the response to the time-of-use electricity price based on the constraint condition and the collected original data; 4 establishing a target function based on the calculation result in the step 3; and 5 inputting a known condition into the target function established in the step 4 to obtain a joint optimization result. According to the invention, energy storage compensation is used to respond to the load power of time-of-use electricity price; the total cost of load-storage combined operation is minimized; peak clipping and valley filling can be realized; the load peak-valleydifference of the power grid is reduced; excessive user loads do not need to be reduced; the configuration capacity of energy storage is reduced on the premise of meeting the load requirements of users; the power consumption cost of the users and the construction cost of the power grid are saved; and the utilization efficiency of power system equipment is improved.

Description

technical field [0001] The invention belongs to the technical field of source-load-storage, and in particular relates to a load-storage joint optimization operation method based on demand response. Background technique [0002] In recent years, with the diversity, randomness and intermittency of distributed power sources and loads, the peak-to-valley difference in power grid load is increasing, and short-term peak or peak loads may appear, resulting in overloading of lines or transformers. The method of upgrading not only has high investment and long construction period, but also the utilization rate of equipment is not high. [0003] Based on Demand side response (DSR) technology, modern communication and measurement technology, through measures such as price and policy incentives, changing the electricity consumption behavior of users can make the load as a whole participate in the dispatch control, optimal operation and coordination of the power system. market transactio...

AI Technical Summary

Problems solved by technology

However, most of the current research simply considers energy storage or load regulation for peak shaving and valley filling, without integrating the respective functions of the two, which often leads to excessive energy storage capacity or unreasonable load control.

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