Research On Park Friendly Power Supply Service Model Based On Voltage Sag Prevention

With the improvement of industrial automation and intelligence,a large number of sensitive devices have been put into use,and the power supply environment has undergone significant changes.Voltage sags have become the most serious type of power quality issues.Users of high-end manufacturing enterprises,such as semiconductors,new energy materials and biopharmaceuticals,have caused significant economic losses due to voltage sags,and complain seriously.In order to meet the special electricity needs of power users and create greater commercial value,the park investor relies on existing customized power technology to research on a new form of park friendly power supply business model,which can achieve friendly power supply services and attract a large number of users with significant sensitive load ratios to settle in.In this paper,the basic concept of friendly power supply service and its business model based on voltage sag prevention and control is first proposed.Two friendly power supply service business models of the park are designed from the perspectives of participating stakeholders,physical power supply network,prevention capital and business model elements.Namely,the investment service model and the friendly service model on game pricing of voltage sag prevention and control under financial credit.Then,aiming at the customer voltage sag prevention and control investment service model under financial credit,the financial credit service of banks is introduced to solve the problem of insufficient original funds of power users,and the cost and total income of users and banks in the whole life cycle of voltage sag prevention and control project are analyzed.The optimal loan ratio calculation model and decision method are put forward to minimize the contribution ratio and maximize the profit of power users.Finally,in the voltage sag friendly prevention and control service mode on game pricing,power users entrust the power company or the third party service company to temporarily prevent and control.The service market of voltage sag prevention and control for power companies,third party service companies and both of them can compete in is constructed.The cost-benefit model under different prevention and control methods and the game pricing model of voltage sag friendly prevention and control service with the highest net income and comprehensive satisfaction of both parties are established.The particle swarm optimization algorithm is selected to solve the problem.Combined with the example of the park,the prevention and control effect,service pricing,the net income and comprehensive satisfaction of both parties,and the average annual profit rate were verified.At the end of the paper,the two business models are compared and analyzed,and the advantages and disadvantages are compared.