Research On P2P Trading Mechanism And Strategy Of Distributed PV Generation

With the development of the economy and the improvement of living standards,the increasing growth of energy demand poses severe challenges to production and consumption of energy.According to the global energy report,power generation is still heavily dependent on non-renewable resources such as coal,natural gas,etc,which is a serious problem to be addressed for sustainable development.The non-renewable resources are gradually exhausted under large-scale consumption due to the limitation of their total amount.In addition,the massive use of non-renewable resources has brought serious environmental problems including pollution emissions,greenhouse effects and nuclear waste.Renewable energy has the characteristics of large reserves,low pollution,low cost,and recyclability.The development of renewable energy will promote the clean energy transformation and achieve sustainable energy development.However,centralized photovoltaic power plants have difficulties in power generation fluctuations and energy consumption.Benefiting from the advantages of low threshold,high flexibility,easy deployment consumption of distributed photovoltaics,it is more suitable for the energy development demands in the urban energy Internet environment.The construction of the electricity market with distributed photovoltaic participation can facilitate regional photovoltaic consumption and further promote the development of renewable energy.Therefore,it is of great significant to incorporate distributed PVs into electricity market considering their economics and transaction efficiency by means of market mechanisms.Based on the analysis of the characteristics of distributed PVs and the electricity market,this dissertation studies the methodology,mechanisms,and strategies of distributed PVs participating in market transactions.The main contents are as follows:(1)The basic characteristic of the market under the participation of distributed PVs is studied.By analyzing the two aspects of the market feasibility of distributed PVs and the advantages of P2 P trading,a three-level market mechanism for distributed PVs participation is proposed,and the trading advantages of this mechanism are analyzed.(2)For the day-ahead market research,a P2 P trading mechanism for distributed PV and a continuous matching and clearing mechanism are designed.Moreover,a quantitative analysis is made through a case to show that users can get increased trading income under this trading mechanism.(3)According to the risk factors and transaction behavior of users participating in the transaction,a bidding tendency expectation model that considers the user's risk preference is proposed,and an optimized bidding method for single user is designed.It is obtained that the optimized bidding method used in the P2 P power market will further increase users' transaction income based on quantitative analysis.