| 引用本文: | 苑田润,李凤婷,尹纯亚.应对直流闭锁故障的调相机励磁控制参数优化策略[J].电力系统保护与控制,2025,53(1):125-134.[点击复制] |
| YUAN Tianrun,LI Fengting,YIN Chunya.Optimization strategy of condenser excitation control parameters under DC blocking faults[J].Power System Protection and Control,2025,53(1):125-134[点击复制] |
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| 摘要: |
| 针对直流闭锁故障引起的暂态过电压问题，提出了一种调相机励磁系统控制参数优化策略。首先，引入暂态电压影响因子量化分析了直流闭锁故障下调相机无功出力对暂态电压的影响。基于调相机的暂态特性分析，明确了励磁系统控制参数对调相机暂态无功出力的影响机理。其次，推导建立了直流闭锁故障下调相机动态无功出力与暂态过电压的量化关系，并量化分析了调相机暂态无功出力与励磁控制参数之间的关系。提出了一种抑制过电压的励磁系统控制参数优化策略，可实现直流闭锁故障下调相机暂态无功调节能力的深度挖掘。最后，在PSCAD仿真平台中搭建含调相机的交直流混联系统，仿真验证了所提出的励磁参数优化策略具有较好的暂态过电压抑制能力。 |
| 关键词: 调相机 暂态过电压 直流闭锁 励磁系统 |
| DOI：10.19783/j.cnki.pspc.240264 |
| 投稿时间：2024-03-07修订日期：2024-10-04 |
| 基金项目:国家自然科学基金项目资助(5236070148) |
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| Optimization strategy of condenser excitation control parameters under DC blocking faults |
| YUAN Tianrun,LI Fengting,YIN Chunya |
| (College of Electrical Engineering, Xinjiang University, Urumqi 830017, China) |
| Abstract: |
| To address a transient overvoltage problem caused by DC blocking faults, an optimization strategy of the excitation system control parameters of the condenser is proposed. First, a transient voltage influence factor is introduced to quantitatively analyze the influence of the reactive power output of the condenser on the transient voltage under a DC blocking fault, and based on the transient characteristic analysis of the condenser, the influence mechanism of the excitation system control parameters on the transient reactive power output of the condenser is clarified. Secondly, the quantitative relationship between the dynamic reactive power output and transient overvoltage of the condenser under a DC blocking fault is established, and the relationship between the transient reactive power output of the condenser and the excitation control parameters is quantitatively analyzed. An optimization strategy of the excitation system control parameters for suppressing the overvoltage is put forward. This can realize deep mining of the condenser’s transient reactive power regulating capability under a DC blocking fault. Finally, an AC-DC hybrid system with a condenser is constructed on the PSCAD simulation platform. The simulation verifies that the proposed excitation parameter optimization strategy has good transient overvoltage suppression capability. |
| Key words: condenser transient overvoltage DC blocking excitation system |
