"基于MATLAB的P-Q分解法电力系统潮流计算"

Based on the contents provided, the summary is as follows: The power system flow calculation is an important analysis tool in studying the stability of power systems. It is used in both power system planning and research on existing power system operation to quantitatively analyze the feasibility, reliability, and economy of different supply schemes or operating methods. This paper focuses on introducing the basic principles of power system flow calculation, including the mathematical models of the power network and the flow calculation, as well as several common methods used in flow calculations. In particular, the P-Q decomposition method is emphasized. The P-Q decomposition method, derived from the polar coordinate representation of the Newton-Raphson method, is one of the commonly used methods in power flow calculations. It offers a simplified calculation procedure and improves computational efficiency. The paper provides a detailed explanation of the formation process and computational procedure of the P-Q decomposition method. Furthermore, it presents a representative case where the P-Q decomposition method is applied for power flow calculation. The calculations are implemented using MATLAB software, and a brief analysis of the results is provided. In conclusion, this paper introduces the principles and methods of power system flow calculation, with a focus on the P-Q decomposition method. The paper demonstrates the application of the P-Q decomposition method in a case study using MATLAB software, highlighting its computational efficiency. The results of the power flow calculation are briefly analyzed. This research contributes to the understanding and application of power system flow calculation, providing insights into its feasibility, reliability, and economic aspects. Keywords: power system flow calculation, P-Q decomposition method, MATLAB software.