Influence of Wind Power Integration on Power Grid and its Strategy

Liu, Xiao Ming; Niu, Xin; Jia, Shan Jie; Zhang, Jie

doi:10.4028/www.scientific.net/amm.347-350.1398

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…A wind turbine can contribute to the grid side flexibility by improving the voltage profile through the process of generating and absorbing reactive power [48] Maintaining the voltage within the operational limit is always considered as one of the critical issues, especially when introducing new technology associated with the load or power generation. For instance, the fluctuation of wind power output causes voltage fluctuations and flickers that depend on the variation of wind speed and type of generation system [49]. Generators that dominate the wind turbine industry are divided into fixed-speed, variable-speed induction generators.…”

Section: B Reactive Power/voltage Supportmentioning

confidence: 99%

Grid Integration Challenges of Wind Energy: A Review

et al. 2020

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The strengthening of electric energy security and the reduction of greenhouse gas emissions have gained enormous momentum in previous decades. The integration of large-scale intermittent renewable energy resources (RER) like wind energy into the existing electricity grids has increased significantly in the last decade. However, this integration poses many operational and control challenges that hamper the reliable and stable operation of the grids. This article aims to review the reported challenges caused by the integration of wind energy and the proposed solutions methodologies. Among the various challenges, the generation uncertainty, power quality issues, angular and voltage stability, reactive power support, and fault ride-through capability are reviewed and discussed. Besides, socioeconomic, environmental, and electricity market challenges due to the grid integration of wind power are also investigated. Many of the solutions used and proposed to mitigate the impact of these challenges, such as energy storage systems, wind energy policy, and grid codes, are also reviewed and discussed. This paper will assist the enthusiastic readers in seeing the full picture of wind energy integration challenges. It also puts in the hands of policymakers all aspects of the challenges so that they can adopt sustainable policies that support and overcome the difficulties facing the integration of wind energy into electricity grids. INDEX TERMS Angular stability, energy storage system, fault ride-through capability, frequency response, grid codes, reactive power support, voltage stability, wind intermittency. • Induction generator (squirrel cage (type 1) and wound rotor (type 2))

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Section: B Reactive Power/voltage Supportmentioning

confidence: 99%

Grid Integration Challenges of Wind Energy: A Review

et al. 2020

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“…Installed capacity of self-supplied power plants 16 The flexibility of thermal power units of northwest China is much lower than the world's leading level such as Denmark, and the technical potential has not been fully freed. Under the combined influence of the government pricing, the lack of a spot market of electricity, auxiliary service and capacity market system, the thermal power as the main power source has no incentive to release and improve its flexibility, seriously constraining the possibility of flexible operation and accommodating renewable energy of the electricity system.…”

Section: Gansu Ningxia Qinghaimentioning

confidence: 99%

“…A small number of empirical studies only analyzed some specific factors that affect wind curtailment from one aspect. Liu analyzed the impact of wind power integration on the existing power grid [16]. Zhang et al analyzed the average annual government revenue and tax increase for 10,000 yuan of investment in thermal power or wind power of two typical districts based on the input-output method and concluded that thermal power generation has obvious advantages over wind power generation [17].…”

Section: Introductionmentioning

confidence: 99%

Why the Wind Curtailment of Northwest China Remains High

et al. 2018

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Abstract:The total grid-connected installed capacity of wind power in northwest China has grown from 16,260 MW in 2013 to 43,290 MW in 2016; an increase of 88.7% each year. However, this region has suffered from increasingly serious wind curtailment since 2014, and the wind curtailment amount accounts for nearly a half of China's total. The wind curtailment rate of Gansu Province, Xinjiang Uygur Autonomous Region and Ningxia Hui Autonomous Region in this area has increased and remains high. This paper constructs an analytical model to explore the reasons of the high wind curtailment of these three provinces from the four aspects of the wind power supply capacity, demand, grid transmission capacity, power system flexibility and market mechanism and laws. The results show that the relationship between the wind energy distribution and supply and the local load is incompatible, which is the source causing the high wind curtailment in northwest China. On the one hand, the game between the local government and developers has driven the development of wind power bases. On the other hand, the electricity sector is growing slowly and oversupply of electricity is seen in many areas of China. The wind power grid of northwest China not only faces limit of grid transmission capacity, but also constraint of insufficient flexibility of the electricity system. Presently, China has not set up a market mechanism and subsidy mechanism for the peak load adjustment, thus the thermal power companies lack motivation to voluntarily adjust the peak load. Moreover, the regional segregation and market barriers are also obstacles for the wind power outward transmission.

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Influence of Wind Power Integration on Power Grid and its Strategy

Cited by 2 publications

References 4 publications

Grid Integration Challenges of Wind Energy: A Review

Grid Integration Challenges of Wind Energy: A Review

Why the Wind Curtailment of Northwest China Remains High

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