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1.国网浙江省电力有限公司电力科学研究院,浙江省杭州市 310014
2.华北电力大学电气与电子工程学院,北京市 102206
赵波(1977—),男,通信作者,博士,教授级高级工程师,主要研究方向:分布式电源、储能、微电网及电氢耦合技术。E-mail:zhaobozju@163.com
唐雅洁(1993—),女,硕士,工程师,主要研究方向:新能源与负荷功率预测、微电网运行与控制、大规模分布式电源并网技术。E-mail:tyj_11@163.com
徐浩(1996—),男,硕士研究生,主要研究方向:分布式能源并网技术。E-mail:421974551@qq.com
收稿:2024-02-27,
修回:2024-05-31,
网络出版:2024-08-28,
纸质出版:2024-10-25
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赵波,唐雅洁,徐浩等.基于瞬态搜索优化的电压型分布式光伏-VSG功频参数整定优化[J].电力系统自动化,2024,48(20):25-35.
ZHAO Bo,TANG Yajie,XU Hao,et al.Optimal Setting of Power and Frequency Parameters for Voltage-type Distributed Photovoltaic-Virtual Synchronous Generator Based on Transient Search Optimization[J].Automation of Electric Power Systems,2024,48(20):25-35.
赵波,唐雅洁,徐浩等.基于瞬态搜索优化的电压型分布式光伏-VSG功频参数整定优化[J].电力系统自动化,2024,48(20):25-35. DOI: 10.7500/AEPS20240227009.
ZHAO Bo,TANG Yajie,XU Hao,et al.Optimal Setting of Power and Frequency Parameters for Voltage-type Distributed Photovoltaic-Virtual Synchronous Generator Based on Transient Search Optimization[J].Automation of Electric Power Systems,2024,48(20):25-35. DOI: 10.7500/AEPS20240227009.
随着分布式光伏渗透率的提高,传统能源机组占比持续下降,电力系统所具备的惯量和一次调频能力不断降低。因此,挖掘低惯量系统下分布式光伏的频率支撑能力显得十分关键。基于此,文中首先提出了改进变备用率的电压型分布式光伏虚拟同步机(VSG)频率主动支撑方法,以增强系统惯量、减少响应时延,提升分布式光伏主动参与系统频率支撑的能力。然后,提出了基于瞬态搜索优化算法的功频参数整定优化选取模型,以求解分布式光伏最优初始备用功率和最佳调频参数,改进了光伏初始备用功率固定的局限性。最后,将所提模型分别应用于单机模型及高渗透率分布式光伏接入的实际台区,以验证其有效性。
With the increasing penetration of distributed photovoltaic (DPV)
the proportion of traditional energy units continues to decline
resulting in a reduction of inertia and primary frequency regulation capabilities in power systems. Therefore
it is crucial to explore the frequency support capabilities of DPV in low-inertia systems. On this basis
first
this paper proposes an improved frequency active support method for voltage-type DPV-virtual synchronous generator (DPV-VSG) with variable reserve rate to enhance the system inertia
reduce the response delay
and improve the ability of DPV for active participation in system frequency support. Then
an optimal selection model for setting the power and frequency parameters based on the transient search optimization (TSO) algorithm is proposed to solve the optimal initial reserve power and best frequency regulation parameters of DPV
which improves the limitation of fixed photovoltaic initial reserve power. Finally
the proposed model is applied in a single-generator model and an actual distribution station area model with high penetration of DPV to verify its effectiveness.
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