| 引用本文: | 李 鹏,王成山,黄碧斌,高 菲,丁承第,于 浩.分布式发电微网系统暂态时域仿真方法研究——（一）基本框架与仿真算法[J].电力自动化设备,2013,33(2): |
| LI Peng,WANG Chengshan,HUANG Bibin,GAO Fei,DING Chengdi,YU Hao.[J].Electric Power Automation Equipment,2013,33(2): |
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| 摘要: |
| 分布式发电微网系统具有较强的非线性与随机性，其动态过程更加复杂，详细的暂态时域响应特性需要对元件进行详细建模，采用基于节点方程的电磁暂态仿真的基本框架作为实现分布式发电微网系统暂态仿真的基础。介绍了实现暂态仿真所采用的各种算法，比较了不同方法的优劣。具体为：采用增广的改进节点方程扩展了电气系统的建模能力；采用牛顿法迭代求解控制系统消除了非线性元件的内部时延，利用伪牛顿法提高了控制系统的计算速度；采用插值算法解决电力电子开关仿真时的各种问题。最后，讨论了分布式发电微网系统的初始化方法。 |
| 关键词: 分布式发电 微网 暂态仿真 节点方程 插值 时域 |
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| 基金项目:国家自然科学基金资助项目（51207100，５１２６１１３０-４７３）；国家重点基础研究发展计划（973计划）项目（2009CB21-9700，2010CB234600） |
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LI Peng1, WANG Chengshan1, HUANG Bibin2, GAO Fei3, DING Chengdi1, YU Hao1
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1.Key Laboratory of Smart Grid of Ministry of Education，Tianjin University，Tianjin 300072，China;2.State Grid Energy Research Institute，Beijing 100052，China;3.China Electric Power Research Institute，Beijing 100192，China
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| Abstract: |
| DG（Distributed Generation） and microgrid are featured with nonlinearity and randomness and the transient simulation of their response characteristics in time domain requires detailed modeling of the elements，for which，the framework of electromagnetic transient simulation based on nodal analysis is adopted. Different algorithms of transient simulation are introduced and compared. The modified augmented nodal analysis is applied to extend the modeling capability of electrical system，the Newton iteration is applied to obtain the solution of control system and eliminate the inner time-delay of nonlinear elements，the pseudo Newton method is applied to enhance the calculation speed of control system，and the interpolation scheme is applied in the simulation of power electronic switching. The initialization methods for the transient simulation are discussed. |
| Key words: distributed power generation microgrid transient simulation nodal equation interpolation time domain |
