Smart Grid Dispatching Optimization for System Resilience Improvement

• Published in: Complexity (New York, N.Y.) Vol. 2020; no. 2020; pp. 1 - 12
• Main Authors: Liao, Li, Ji, Chengjun
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 2020; Hindawi; Hindawi Limited; Hindawi-Wiley
• Subjects: Algorithms; Alternative energy sources; Combinatorial analysis; Communication; Computer centers; Constraint modelling; Construction costs; Control algorithms; Electric power generation; Electric power grids; Electrical loads; Electricity; Electricity distribution; Energy consumption; Energy management; Maintenance; Operating costs; Optimal control; Optimization; Overhauling; Power supply; Real time; Renewable energy; Renewable resources; Scheduling; Smart grid; Smart grid technology; Wind power; Wind power generation
• ISSN: 1076-2787; 1099-0526
• DOI: 10.1155/2020/8884279

A large number of modern communication technologies and sensing technologies are incorporated into the smart grid, which makes its structure unique. The centralized optimized dispatch method of traditional power grids is difficult to achieve effective dispatch of smart grids. Based on the analysis of power generation plan and maintenance plan optimization model, this paper establishes a smart grid power generation and maintenance collaborative optimization model with distributed renewable energy. The objective function of this collaborative optimization problem is the operating cost of conventional units, the cost of wind power generation, and the cost of overhauling units; the constraints considered mainly include system constraints and overhaul constraints. The solution method of combinatorial optimization is analyzed, and the genetic optimization algorithm adopted in this paper is selected and discussed. According to the characteristics of the system, various loads are modeled, and power supply constraints are considered. By establishing an effective objective function, the adjustable load scheduling problem is transformed into a solvable optimal control problem. Taking into account the uncertain factors in the system, the advantage of the real-time control system is that it can realize the dynamic update scheduling of the load, so it is more in line with the requirements of the actual system. The real-time algorithm proposed in the paper is based on a distributed control strategy, which can not only realize dynamic compensation for random fluctuations in renewable energy power generation but also satisfy the load curve optimization under the premise of making full use of power supply resources. In addition, simulation experiments compare the load dispatching capabilities of the proposed algorithm with the existing algorithms, thereby verifying the performance of the proposed method.