Dynamic Power Decoupling Control of Virtual Synchronous Generator Based on Improved Virtual Impedance [PDF]
ObjectivesWhen a virtual synchronous generator (VSG) is connected to a medium and low voltage distribution network, the line impedance exhibits resistive and inductive characteristics, resulting in strong coupling in the VSG output power.
REN Mingwei +4 more
core +1 more source
Grid-connected control strategy of GFM inverter in solar-powered ship photovoltaic system [PDF]
Objective The paper aims to solve the problem of the overall stability of the ship's power system being reduced due to the use of grid-following (GFL) control for grid connection in existing solar ship photovoltaic (PV) power generation systems ...
Chunhua ZHAO +2 more
core +1 more source
Review of Grid-Forming Energy Storage and Its Applications [PDF]
ObjectivesThe characteristics of low inertia and low damping in “double-high” (high renewable energy penetration and high power electronics application) power system pose significant challenges to grid stability, particularly in terms of frequency and ...
FAN Xuejun, LI Yalou, ZHAO Fei
core +1 more source
Sub-Synchronous Oscillation Suppression Based on VSG Virtual Impedance Feasible Domains [PDF]
[Objective] The virtual synchronous generator (VSG) system exhibits negative damping characteristics under weak grid connection, which triggers subsynchronous oscillations and leads to system instability.
Qin SUN, Yi DU, Yuxin SUN
core +1 more source
Mechanism of Inertia Loss and Evaluation of Inertia Level in Power Systems with Large Scale New Energy Access [PDF]
[Introduction] In order to meet the national goals of "30·60" - peak carbon emissions by 2030 and achieving carbon neutrality by 2060, an influx of new energy sources such as wind and photovoltaic power is integrated into the system via converter ...
Liwei YU +6 more
core +1 more source
Energy Storage Configuration Considering the System Wind Power Reserve Capacity Under High Wind Power Permeability [PDF]
The high proportion penetration of the wind power weakens the inertia and frequency regulation capacity of the power system. The energy storage system (ESS) is widely used in the inertia support and frequency regulation of the power grid with the ...
LIU Hongbo +4 more
core +1 more source
Research on Fault Location in Integrated Energy Systems Based on Improved Binary Particle Swarm Optimization Algorithm [PDF]
ObjectivesThe coverage of power systems continues to expand, and the structure of integrated energy systems is becoming increasingly complex. This trend leads to a significant decline in the accuracy of fault location in the distribution network that is ...
GAO Yang +5 more
core +1 more source
Review of Application on Optimization Strategies for New-Type Power System Based on Reinforcement Learning [PDF]
ObjectivesAs power systems evolve toward higher levels of intelligence and automation, reinforcement learning (RL), a key technology in artificial intelligence, shows great potential in the intelligent development of the power sector.
WANG Kai, YAN Zhengyi, ZHAO Kang
core +1 more source
Review of Energy Management Systems for Islanded Microgrids [PDF]
ObjectivesAgainst the backdrop of energy resource scarcity and increasing environmental demands, distributed energy supply technologies, particularly renewable energy technologies, have attracted significant attention due to their high energy efficiency,
BIE Yu +4 more
core +1 more source
Gaoya dianqi, 2016 随着风能资源的不断开发与利用,电力系统中风电比例也逐渐增大,现阶段绝大部分风电机组尤其是PMSG不具备在系统频率振荡时向系统注入阻尼功率的能力,因此大规模PMSG风电场的接入将削弱系统相对惯性和阻尼特性。针对该问题,提出通过控制电力电子器件建立风机与系统的耦合关系,使PMSG虚拟出与同步发电机类似的惯性响应,同时附加PSS控制器使PMSG能够在电网故障振荡时提供功率支持,从而提高区域电网稳定性。最后,在四机两区域系统中进行了时域仿真,验证了该方法具有改善高风电渗透率区域电网的系统惯性,提高系统阻尼比 ...
彭章刚, 周步祥, 冯超
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