摘要
在交直流潮流计算中,如何有效地描述直流输电系统控制方式的转换是实际电力系统运行和分析必须考虑的问题。文中基于功率等值和交直流系统交替解耦求解的原理,利用电力系统分析综合程序的用户自定义建模环境,建立了高压直流输电系统潮流计算的数学模型。该模型考虑了直流输电系统主要控制方式的控制作用和相互转换,具有较好的收敛性。EPRI-36算例的结果表明,自定义模型能够处理运行条件改变导致的运行方式发生的转换,并且有利于大规模电力系统的潮流计算和仿真研究。
In the power flow calculation of AC/DC power grid, it is necessary to be considered that how to effectively describe the conversion of control modes of HVDC power transmission system for the operation and analysis of actual power systems. In this paper, based on the principle of power equivalence and the solution of AC/DC power system by alternative decomposition of AC/DC power system, by use of user-defined modelling environment of power system analysis software package （PSASP） a mathematical model for the power flow calculation of HVDC power transmission system is built, in which the action of main control modes of HVDC power transmission system and the inter-conversion among these main control modes are taken into account. The built model possesses satisfied convergence performance. Calculation results of IEEE 36-bus system show that the built user-defined model can deal with the change of operation mode due to the change of operation conditions, and it can be utilized in power flow calculation of large-scale power grid and simulation study.
出处
《电网技术》
EI
CSCD
北大核心
2010年第6期139-143,共5页
Power System Technology
