| 引用本文: | 张芳,仇雪芳,李传栋.电力系统中长期过程动态仿真的组合积分算法[J].电力自动化设备,2017,37(2): |
| ZHANG Fang,QIU Xuefang,LI Chuandong.Combined integral method for mid/long-term dynamic simulation of power system[J].Electric Power Automation Equipment,2017,37(2): |
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| 摘要: |
| 电力系统中长期过程具有非线性、强刚性的特点，其仿真时间框架长，与电力系统机电暂态过程相比，中长期过程对数值积分算法的数值稳定性、收敛性和计算效率的要求更高。针对此问题，将隐式梯形积分法和多步高阶隐式Taylor级数法进行组合，提出新的组合积分算法。在机电暂态过程采用隐式梯形积分法，在中长期过程采用多步高阶隐式Taylor级数法。算例仿真与分析结果验证了新组合积分算法的有效性和可行性。 |
| 关键词: 电力系统 机电暂态 中长期动态 刚性系统 新组合积分算法 |
| DOI：10.16081/j.issn.1006-6047.2017.02.017 |
| 分类号:TM761 |
| 基金项目: |
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| Combined integral method for mid/long-term dynamic simulation of power system |
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ZHANG Fang1, QIU Xuefang1, LI Chuandong2
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1.Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China;2.Electric Power Research Institute of Fujian Provincial Power Co.,Ltd.,Fuzhou 350007, China
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| Abstract: |
| The mid/long-term process of power system is nonlinear and strong stiff, its simulation time-span is long, and compared with the electromechanical transient process, it requires the numerical integral algorithm has higher numerical stability, convergence and computational efficiency. A new integral method combining the implicit trapezoidal integral method and the multi-step multi-derivative implicit Taylor series method is proposed. The implicit trapezoidal integral method is used in the electromechanical transient process while the multi-step multi-derivative implicit Taylor series method in the mid/long-term process. Results of case simulation and analysis show the effectiveness and feasibility of the proposed method. |
| Key words: electric power systems electromechanical transient mid/long-term dynamic stiff system new combined integral method |
