电力系统交流可行负荷域的完整刻画方法研究OA
Complete Characterization Method of AC Feasible Loadability Region in Power Systems
[目的]静态安全域表示电力系统满足运行约束的可行功率注入的集合.为充分研究和表征电力系统负荷需求的灵活性,将静态安全域投影到负荷需求空间上,定义了交流可行负荷域.[方法]首先,采用非线性交流潮流模型对系统的交流可行负荷域进行完整刻画.同时,为探讨负荷特性对交流可行负荷域的影响,在负荷域模型中引入了描述非线性负荷特性的多项式负荷模型(ZIP负荷模型).最后,通过数值计算结果,验证了所提刻画方法在完整准确刻画负荷域的优势.[结果]文章通过在IEEE 30节点、IEEE 57节点和IEEE 118节点系统上将该方法与现有的几种方法进行对比,结果表明本文所得刻画结果更精准,验证了所提方法的准确性和优越性.
[Purposes]The steady-state security region represents the set of AC feasible power in-jections that satisfy operational constraints in the power system.To fully explore and characterize the flexibility of power system load demand,the steady-state security region is projected onto the load de-mand space and an AC feasible loadability region is defined.[Methods]First,a nonlinear AC power flow model was used to completely characterize the AC feasible loadability region of the system.At the same time,to explore the impact of load characteristics on AC feasible loadability region,a poly-nomial load model(ZIP load model)describing nonlinear load characteristics was introduced into the load domain model.Finally,the advantages of the proposed characterization method in fully and accu-rately characterizing the loadability region were verified through numerical calculations.[Results]By comparing the proposed method with existing methods on the IEEE 30-bus,IEEE 57-bus,and IEEE 118-bus systems,the results demonstrate that the characterization obtained in this paper is more precise,validating the accuracy and superiority of the proposed method.
姜海鹏;苏珈;江晓东;杜欣慧;张文轩;常堃;张日新
太原理工大学 电气与动力工程学院,山西 太原太原理工大学 电气与动力工程学院,山西 太原天津大学 电气自动化与信息工程学院,天津太原理工大学 电气与动力工程学院,山西 太原太原理工大学 电气与动力工程学院,山西 太原太原理工大学 电气与动力工程学院,山西 太原太原理工大学 电气与动力工程学院,山西 太原
信息技术与安全科学
交流可行负荷域交流潮流模型完整刻画非线性动力系统ZIP负荷模型
AC feasible loadability regionAC power flow modelcomplete characterizationnonlinear dynamical systemZIP load model
《太原理工大学学报》 2026 (2)
219-228,10
国家自然科学基金青年基金资助项目(52307130)
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