基于双锁相环的海上风场综合惯量调频策略研究
摘要：海上风电作为构建以新能源为主体的新型电力系统的重要组成部分将在沿海城市迅速发展，大规模海上风电并网将大幅削减系统惯量，降低频率抗扰能力。为此，提出基于双锁相环的海上风场综合惯量控制策略。首先，从理论上分析了锁相环对风机虚拟惯量的影响机理，探究了参数变化下风机惯量支撑能力和系统频率响应特性；其次，通过分析锁相环参数变化对风机一次调频能力的消极影响，提出基于变参数-快速双锁相环的海上风场综合惯量调频策略；最后，通过仿真验证所提调频策略的有效性。结果表明，综合惯量控制策略在频率响应快速性、抑制测量噪声等方面均具有显著优势。
Abstract:To build the new power system with the main body of new energy, the offshore wind farm (OWF) is an important part and has been rapidly developed in coastal cities. However, the large-scale OWFs also reduce the inertia of power systems, which significantly decreases the anti-disturbance capability of system frequency Therefore, a synthetic inertia control strategy for OWF based on dual phase-locked loops (PLL) was proposed. First, the influence mechanism of PLL on virtual inertia of wind turbine was theoretically analyzed for variable parameter PLL. And the variation rule of wind turbine inertia support capacity and system frequency response characteristics with parameter changing PLL was explored. Then, the double PLL based OWF frequency regulation strategy was proposed through analyzing the negative effect of primary frequency regulation characteristics caused by the variable parameter of PLL. Finally, the effectiveness of the proposed frequency regulation strategy was verified though simulations. The results show that the proposed method has significant advantages in frequency response speed and frequency measurement noise suppression.
标题：基于双锁相环的海上风场综合惯量调频策略研究
title:Study on Double Phase-Locked Loop on the Synthetic Inertia Control of Offshore Wind Farm Frequency Regulation
作者：刘林, 王大龙, 綦晓, 周振波, 林焕新, 蔡传卫
authors:Lin LIU, Dalong WANG, Xiao QI, Zhenbo ZHOU, Huanxin LIN, Chuanwei CAI
关键词：海上风场,综合惯量控制,调频策略,新型电力系统,锁相环,
keywords:offshore wind farm,synthetic inertia control,frequency regulation strategy,new-type power system,phase-locked loop,
发表日期：2024-04-30
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