Short Term Scheduling of Decentralized Peer-To-Peer Energy Trading in an Industrial Microgrid Considering the Central Shared Energy

In recent years, with the growth and development of technology in electricity generation, the cost of distributed energy generation has decreased. So public access to this type of energy production technology has developed. In addition to the above, many countries have structured an incentive policy to motivate the industries to employ local energy generation along with the upstream network. These industries will also help reducing air pollution and carbon dioxide emissions. In most cases, the installed capacity is higher than the demand of the unit. Due to the unpredictable nature of solar or wind energy production, the amount of electricity generated in some hours of the day may exceed the demand. Sometimes these consumers, who can also be called producers(Prosumer), sell their extra energy to the local grid at certain hours. Selling energy to the upstream network at the distribution level increases the complexity and difficulty of detecting errors in the network. But it has some advantages such as improving the voltage profile, reducing the peak load and, reducing line congestion. The price difference in the non-subsidized system, makes the owners of distributed production think of selling their surplus production power to other customers at a higher price by eliminating brokers. With the development of communication technologies and increasing security and speed of data transfer among customers, a new market in low voltage networks is formed under the peer-to-peer market. In the new market, old customers who were only a consumer become power generators in a few hours and can share the extra energy in microgrids. Specifically, every energy producer has only two ways to sell their excess power. The first way is to sell power to the upstream network and the second way is to sell power to other customers. Therefore, if the purchase and sale price of peer-to-peer energy is kept between the purchase and sale price of the upstream network, the buyer and seller of peer-to-peer will both benefit. one of the most brilliant advantages of the peer-to-peer market is paving the way for another technology. One of the most attractive ones is shared energy storage, which can be enabled in the peer-to-peer market. Shared battery energy storage system born with cooperating of the market participants to investment on central battery storage. This battery is a central system installed in a microgrid that shared its capacity with the customers. The peer-to-peer market has lots of complexity and shared battery energy storage complicates it. Hence, we are working on the optimal scheduling of this problem by considering the customers as rational players.