Techno-economic analysis of contingency reserve allocation scheme for combined UHV DC and AC receiving-end power system

Wu, Di; Zhang, Ning; Chen, Kang; Ge, Yi; Xie, Zhengchao; Huang, Junhui

doi:10.17775/cseejpes.2016.00023

Cited by 14 publications

(6 citation statements)

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“…Recently, UHV lines (over 1000 kV UHVAC and ±800 kV UHVDC) have been adopted in China to significantly increase the electricity transmission capability [26].…”

Section: Model Descriptions and Assumptionsmentioning

confidence: 99%

A multi-regional energy transport and structure model for China’s electricity system

Zhang

Guo

2018

Energy

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The imbalance between the distribution of coal resources and electricity demand makes the transport of energy a significant challenge for China's electricity system. Moreover, with China's air pollution control policies, more clean energy resources will be used to generate electricity, which will change regional power generation structures and influence the energy transport among regions. In this paper, a multi-regional model is developed to optimize the long-term generation and transmission structure of China's electricity system by minimizing the accumulative system cost and considering regional resource endowments and air pollution control polices in four key areas. Results indicate that 1) the share of power generation from clean energy will increase from 24% in 2015 to 62% in 2050, 2) the structure of power generation in each region will be influenced by local water resource availability, and the total CO 2 emission will be reduced by around 16% in 2030 owing to the air pollution control policies, and 3) by 2050, coal will be mainly transported from the North to the Central, the South, the East and the Northeast, while the electricity will be transmitted to the Central, the South and the East from the Northwest, the North, the Southwest and the Central.

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“…Recently, UHV lines (over 1000 kV UHVAC and ±800 kV UHVDC) have been adopted in China to significantly increase the electricity transmission capability [26].…”

Section: Model Descriptions and Assumptionsmentioning

confidence: 99%

A multi-regional energy transport and structure model for China’s electricity system

Zhang

Guo

2018

Energy

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show abstract

“…In this AC/DC interconnected power system, there are three inverter stations: QDC, NDC and LDC. It should be noted that the inverter stations QDC and LDC are hierarchically interconnected to the receiving-end power grid [28,29]. Thus, each of them is equivalent to two inverter stations (One is in 1000 kV power grid and another is in 500 kV power grid), respectively.…”

Section: Actual Ac/dc Interconnected Power Systemmentioning

confidence: 99%

Decision Optimization for Power Grid Operating Conditions with High- and Low-Voltage Parallel Loops

Yang¹,

Zhao²,

Tian

et al. 2017

Applied Sciences

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Abstract:With the development of higher-voltage power grids, the high-and low-voltage parallel loops are emerging, which lead to energy losses and even threaten the security and stability of power systems. The multi-infeed high-voltage direct current (HVDC) configurations widely appearing in AC/DC interconnected power systems make this situation even worse. Aimed at energy saving and system security, a decision optimization method for power grid operating conditions with high-and low-voltage parallel loops is proposed in this paper. Firstly, considering hub substation distribution and power grid structure, parallel loop opening schemes are generated with GN (Girvan-Newman) algorithms. Then, candidate opening schemes are preliminarily selected from all these generated schemes based on a filtering index. Finally, with the influence on power system security, stability and operation economy in consideration, an evaluation model for candidate opening schemes is founded based on analytic hierarchy process (AHP). And a fuzzy evaluation algorithm is used to find the optimal scheme. Simulation results of a New England 39-bus system and an actual power system validate the effectiveness and superiority of this proposed method.

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“…In grid topology analysis, complex network theory has been widely applied. Modularity measure has been a measurement standard for power grid judgement [12], In paper [13][14], the capabilities and requirements of the main received power grid structure has been analyzed to adapt to the changes in development and operation mode and to ensure the safe and stable operation of the power grid. In paper [15], with influence of equipment's important difference to power grid operation, applicability and rationality are strengthened by setting correction factor.…”

Section: Introductionmentioning

confidence: 99%

Application of Incentive-Type Variable Weight in Decision of 500/220kV Received Electromagnetic Looped Grid Decomposing Operation

Wang¹,

Zhang

Dong

et al. 2020

IEEE Access

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With the construction of 500kV grid, the 500/220kV electromagnetic looped grid of the received power gird will make short current problems stand out. Effectively and economically, considering the measure of the short current limitation, it is essential to decompose electromagnetic looped grid. Based on grid characteristics, grid operation arrangement should be optimized by strategy. Hence, the aspects, such as topological structure, security and stability, power supply reliability, operation economy and appropriate planning should be considered in decomposing 500/220kV electromagnetic looped grid and establishing evaluation index of the grid characteristics. With calculating constant weight by using maximizing deviation, the incentive-type variable weight multi-attribute decision model is proposed according to variable weight theory. This model guarantees objective analysis of the constant weight and extends discrimination of different potential schemes, simultaneously, the decision model's effect will be improved from two perspectives of the index and the scheme. Last, based on evaluation index and decision model raised by this paper, the real 500/200kV received electromagnetic looped grid will be decomposed and analyzed by different schemes, the accuracy and effectiveness of the conclusion obtained by incentivetype variable weight multi-attribute decision model is verified. INDEX TERMS decomposing grid, evaluation index, grid operation arrangement, multi-attribute decision, received electromagnetic looped grid, variable weight theory,

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Techno-economic analysis of contingency reserve allocation scheme for combined UHV DC and AC receiving-end power system

Cited by 14 publications

References 0 publications

A multi-regional energy transport and structure model for China’s electricity system

A multi-regional energy transport and structure model for China’s electricity system

Decision Optimization for Power Grid Operating Conditions with High- and Low-Voltage Parallel Loops

Application of Incentive-Type Variable Weight in Decision of 500/220kV Received Electromagnetic Looped Grid Decomposing Operation

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