Research On Whole Process Optimization Of Island Microgrid With Controllable Load Of Wastewater Treatment

In recent years,China has vigorously carried out marine construction work,and the rational development and utilization of islands have received attention from all sectors of society.Power supply is the key to the development of remote islands.The high cost of power supply relying on traditional submarine cables is unconducive to the economic construction of islands.Under such circumstances,how to solve the power problem of the islands on the basis of reducing economic costs environmentally friendly and pollution-free is very important.The use of microgrid has many benefits.Fully utilize the island’s own abundant renewable energy on the island and actively establish a multi-energy complementary island microgrid power supply system,which can not only solve the island’s electricity problem but also provide sewage treatment load,it is of great significance to island economic development and environmental protection.The Guangdong Provincial Ocean Planning Research Center provides basic funding support for this topic,which researchs on the overall process optimization plan for the planning and operation of the island microgrid system with controllable sewage treatment load.The specific content is as follows:First,introduce the composition and functions of the system,and propose to use the sewage treatment unit as a controllable load to adjust the auxiliary power of the system,and then supplement the power with the battery and diesel generator for power balance.According to this strategy,an energy exchange model of the island microgrid is established.Second,construct the relevant operating constraints and set the goal of minimizing the investment of the system and the diesel power generation in the system energy supply to establish the whole process optimization model of the island microgrid system with controllable sewage treatment load.Then,optimize the number and operating power of components such as engines,batteries,and diesel generators throughout the process.Third,the optimization of island microgrid in an area is conducted using the proposed method.A PSO algorithm is used to obtain the optimal solution.According to the comparative analysis between considering the auxiliary power adjustment sewage treatment load of and without considering it to verify that the auxiliary power adjustment of sewage treatment load has a significant effect on improving the economy of system operation,and the optimization model is rational.