Article
Green & Sustainable Science & Technology
Jiaqian Wu, Yu Chen, Lean Yu, Jinkai Li
Summary: This study proposes a simulation model to investigate the complex relationship between China's consumption side renewable portfolio standards (RPS) and domestic nationwide carbon emission trading (CET) scheme. The results show that both mechanisms can facilitate the expansion of renewable electricity, but the quota goals need to be reasonably set, and more demand incentive mechanisms are required for the tradable green certificates (TGC) market.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Energy & Fuels
Philipp Glaum, Fabian Hofmann
Summary: The integration of wind and solar power into the power system is improved by transmission network expansion. However, the construction of new power lines is often delayed by citizen protests. This study shows that using Dynamic Line Rating (DLR) as an alternative can optimize the existing grid and improve the integration of renewables, resulting in cost savings of up to 5.5% for a fully decarbonized electricity system.
Article
Green & Sustainable Science & Technology
Kai Jiang, Peng Wang, Jianxiao Wang, Nian Liu
Summary: In this paper, a modification of the clearing procedure with a physical contract-based renewable portfolio standard (RPS) restriction is proposed, along with a new reserve cost allocation mechanism dominated by net loads and RPS obligations. A tri-level model is formulated to evaluate these modifications, and case studies demonstrate their effectiveness.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2022)
Article
Engineering, Environmental
Dequn Zhou, Fanshuai Hu, Qingyuan Zhu, Qunwei Wang
Summary: Renewable energy quota in China is allocated at provincial level using a zero sum gains data envelopment analysis (ZSG-DEA) model and entropy model, with the rationality evaluated by an environmental Gini coefficient. The allocation results successfully transfer the responsibility of renewable energy quota from western provinces to eastern provinces.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Engineering, Electrical & Electronic
Xunhang Sun, Xiaoyu Cao, Bo Zeng, Qiaozhu Zhai, Xiaohong Guan
Summary: This paper studies the dynamic planning problem of integrated hydrogen-electrical (IHE) microgrids and proposes a multistage stochastic mixed-integer program (MS-MIP) model. A scenario-tree based sampling strategy is used to capture uncertainties at different time scales. The effectiveness and solution capacity of the proposed method are validated through case studies.
IEEE TRANSACTIONS ON SMART GRID
(2023)
Article
Economics
Xiao-hua Song, Jing-jing Han, Lu Zhang, Cai-ping Zhao, Peng Wang, Xiao-yan Liu, Qiao-chu Li
Summary: China has implemented brand new renewable portfolio standards (RPS) since 2020, impacting multiple markets including the renewable electricity market, consumption above quota market, and tradable green certificate (TGC) market. Research findings show that setting RPS quota planning goals is crucial for market stability and renewable energy production growth, while appropriately increasing unit penalties can stimulate market consumer demand.
Article
Thermodynamics
Qinliang Tan, Yihong Ding, Jin Zheng, Mei Dai, Yimei Zhang
Summary: The study shows that the impact of carbon emissions trading and renewable portfolio standards on the multi-energy combined power-dispatching system varies: the former is more conducive to emission reduction, while the latter is more suitable for energy saving. The renewable portfolio standards have a constant effect on the penetration rate of renewable power, providing insight for the design optimization of these two policies in China.
Article
Business
Abhinav Jindal, Gireesh Shrimali
Summary: India plans to achieve a 450 gigawatt increase in renewable energy capacity by 2030. Renewable energy and battery storage have become cost-competitive alternatives to new coal power, starting from 2022. To maximize battery storage deployment, India should implement a battery portfolio standard linked to the existing renewable portfolio standard, and adopt renewable dispatchable generation power purchase agreements to meet multiple policy criteria.
TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE
(2022)
Article
Economics
Charalampos Avraam, John E. T. Bistline, Maxwell Brown, Kathleen Vaillancourt, Sauleh Siddiqui
Summary: The study found that lower RPS coordination among regions results in increased U.S. natural gas exports to Canada, increased U.S. natural gas prices, and decreased net U.S. natural gas exports to Mexico in the long term. Moreover, international coordination of RPS in the electricity sector leads to smaller price discrepancies in the U.S. natural gas market when compared to the reference scenario.
Article
Economics
Jonathan M. Lee, Gregory Howard
Summary: Renewable energy is a promising technology for combating climate change, and utilizing stochastic frontier models allows us to assess the economic viability of solar and wind projects. Innovation has led to cost reductions, making continued solar and wind expansion profitable for the majority of states.
Article
Environmental Studies
Kayla P. Garrett, Kyra S. Rose, Ryan A. McManamay
Summary: Renewable energy transitions at global and national scales are slower than expected, leading regional and localized entities to take action themselves. Over 200 communities in the US have pledged to achieve 100% renewable energy, but there are still uncertainties and significant gaps in the plans. A study showed that only 40% of communities had public action plans, indicating shortcomings in energy transition plans even at the community scale.
ENERGY RESEARCH & SOCIAL SCIENCE
(2023)
Article
Energy & Fuels
Mojtaba Moradi-Sepahvand, Turaj Amraee
Summary: This paper presents a multi-stage expansion model for the co-planning of transmission lines, battery energy storage (ES), and wind power plants (WPP). The proposed model integrates high penetration of renewable energy sources (RES) and considers the bundling of existing transmission lines to uprate power flow capacity. Battery ES devices are coplanned to defer transmission expansion and renewable management. The effectiveness of the proposed co-planning model is evaluated using IEEE RTS 24-bus and IEEE 118-bus test systems.
Article
Thermodynamics
Xianyang Zhou, Dequn Zhou, Hao Ding, Siqi Zhao, Qunwei Wang
Summary: Low-carbon transition of the power sector is crucial for China to achieve carbon neutrality. This study evaluates the impacts of renewable portfolio standards (RPS) and carbon cap on China's power system. The results show that different policy mixes have effects on energy structure, CO2 emissions, and costs.
Article
Energy & Fuels
Ciara O'Dwyer, Jody Dillon, Terence O'Donnell
Summary: Complex models are necessary for optimizing investments and operations in future low-carbon systems with high shares of variable renewable generation. An advanced energy system model of the Irish power system demonstrates the importance of model detail and highlights the increasing investments in hydrogen technologies as demand grows. Hydrogen fuelled compressed air energy storage is identified as a strong investment candidate in all scenarios.
Article
Engineering, Electrical & Electronic
Xiaohe Yan, Hongcai Zhang, Chenghong Gu, Nian Liu, Furong Li, Yonghua Song
Summary: This paper proposes a dynamic pricing signal for energy storage (ES) operation based on the truncated strategy, aiming to reduce the network investment cost. The design includes an operation strategy for ES to optimize network investment considering uncertainties, as well as a time of use (ToU) pricing scheme to reflect the impact of ES operation on network investment. The proposed method demonstrates a significant reduction in network charges with ES operation, ensuring fairness and efficiency of the pricing signal.
JOURNAL OF MODERN POWER SYSTEMS AND CLEAN ENERGY
(2023)
Article
Acoustics
Penghan Li, Jie Wang, Linyun Xiong, Meiling Ma, Muhammad W. Khan, Sunhua Huang
Summary: This study proposes a robust nonlinear control for a rotor-side converter in a wind farm with doubly fed induction generators by using a fractional-order sliding mode controller to alleviate subsynchronous resonance. The designed controller achieves finite-time control, reduces control time, and enhances robustness against external disturbances, ensuring the safe operation of the wind farm. Simulation results demonstrate the effectiveness of the fractional-order sliding mode controller in damping SSR and improving system transient responses under various operating conditions.
JOURNAL OF VIBRATION AND CONTROL
(2021)
Article
Engineering, Electrical & Electronic
Muhammad Waseem Khan, Jie Wang, Linyun Xiong
Summary: This paper proposed a distributed microgrid known as multi-energy generation grid (MEGG) for optimal resource management to minimize emissions and operational costs. Supervised by an agents-based technique, the optimal energy management scheduling strategy guarantees the maximum use of renewable energy, reduces emissions, and enhances grid reliability.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2021)
Article
Energy & Fuels
Usama Rehman, Donghan Feng, Hao Su, Muhammad Numan, Farukh Abbas
Summary: This study proposes an intelligent charging mechanism utilizing EVBs in RLs to address the issues of network overloading and electric power shortfalls. By employing smart charging/discharging and SMPC technology, fluctuations in power demand in smart communities can be reduced, improving the efficiency of the power network.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Electrical & Electronic
Hao Su, Yun Zhou, Donghan Feng, Hengjie Li, Muhammad Numan
Summary: This paper introduces an expectation-oriented stochastic model for optimal energy management of household batteries to tackle uncertain electricity generation and consumption. Simulation results confirm the convexity and effectiveness of the proposed model, demonstrating its superiority over existing methods in energy storage management.
INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Muhammad Numan, Donghan Feng, Farukh Abbas, Salman Habib, Su Hao
Summary: This paper discusses how to utilize Dynamic Line Rating (DLR) and Optimal Transmission Switching (OTS) technologies to better utilize flexibility in the power system, relieving system congestion, reducing system operating costs, and deepening the integration of renewable energy sources.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Muhammad Waseem Khan, Jie Wang
Summary: This paper proposes a multi-agents based optimal energy scheduling technique at microgrid level, using distributed resource management and linear programming to address actual grid uncertainties and electric vehicle states.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2022)
Article
Engineering, Electrical & Electronic
Linyun Xiong, Shaobo Yang, Sunhua Huang, Donglin He, Penghan Li, Muhammad Waseem Khan, Jie Wang
Summary: This paper proposes an optimal ESS allocation (OEA) scheme for doubly fed induction generator (DFIG) based wind farms to mitigate the impact of wake effect in frequency support. The study analyzes the synchronous stability of wind turbines under frequency dips using the concept of frequency support margin (FSM), and investigates the detrimental impact of wake effect. The role of ESSs in improving wind turbines' synchronous stability is demonstrated. The OEA problem is formulated by segmenting the wind turbines into different clusters based on the received wind speed, with the objective of optimizing the coherency of the wind turbine clusters' FSM level. Simulation results show that ESS can provide secondary frequency support and reduce the risk of loss of synchronous stability.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2022)
Article
Green & Sustainable Science & Technology
Muhammad Ali Raza, Muhammad Yousif, Muhammad Hassan, Muhammad Numan, Syed Ali Abbas Kazmi
Summary: Climate change and scarcity of energy sources have led to a need for developing countries to plan for mature renewable technologies in order to ensure sustainable progress and provide clean and affordable energy. This paper outlines a comprehensive approach for selecting suitable sites for utility scale solar PV and wind projects, incorporating MCDA and GIS. It also proposes an innovative approach for implementing small scale solar PV in areas without electricity access. The methodology was applied to a case study in Pakistan, resulting in suitable areas for solar PV and wind farms.
Article
Engineering, Electrical & Electronic
Linyun Xiong, Sunhua Huang, Yang Zhou, Penghan Li, Ziqiang Wang, Muhammad Waseem Khan, Jie Wang, Tao Niu, Meiling Ma
Summary: This paper proposes a novel voltage and frequency regulation framework for the WT-PV-BESS in a remote weak grid. The BESSs are used to absorb or output power flexibly to solve the issues of bus overvoltage caused by PV generation and system level frequency deviation caused by power output randomness. In this scheme, the BESSs are controlled by a novel distributed control method called containment control, which treats frequency and voltage as two independent containment dimensions to simultaneously restrict the system frequency and bus voltage within the allowable range. Simulation case studies validate the performance and superiority of this method.
IEEE TRANSACTIONS ON POWER SYSTEMS
(2023)
Article
Energy & Fuels
Izhar Us Salam, Muhammad Yousif, Muhammad Numan, Kamran Zeb, Moatasim Billah
Summary: This study aims to optimize the location, size, and number of distributed generation (DG) units to minimize power losses and improve distribution system (DS) reliability. The results demonstrate that the optimal DG unit location and size significantly reduce power losses, improve DS reliability, and enable effective load sharing with the substation. Moreover, this study analyzes the impact of DG unit uncertainty on system performance.
Article
Engineering, Electrical & Electronic
Linyun Xiong, Shiwei Guo, Sunhua Huang, Penghan Li, Ziqiang Wang, Muhammad Waseem Khan, Jie Wang, Tao Niu
Summary: This paper proposes a novel power oscillation damping approach for transient stability enhancement of a power system with high penetration of wind power, where the energy storage system (ESS) is utilized. The ESS-based power system stabilizer and power oscillation damper structures are proposed to enhance the flexibility of power input and output. An optimal allocation approach and sizing approach of ESSs are also proposed. Simulations are conducted to validate the effectiveness of the proposed scheme.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2023)
Review
Computer Science, Information Systems
Muhammad Numan, Muhammad Farasat Abbas, Muhammad Yousif, Sherif S. M. Ghoneim, Alsharef Mohammad, Abdulfattah Noorwali
Summary: The integration of variable renewable energy sources into power grids has led to a more complex operating environment, requiring increased grid flexibility. Optimal transmission switching is a cost-effective technology that can alleviate network congestion and improve system reliability. However, there is currently no extensive review paper on this topic in the literature.
Article
Computer Science, Information Systems
Muhammad Numan, Akif Zia Khan, Mansoor Asif, Sarmad Majeed Malik, Kashif Imran
Summary: This study addresses the challenges in the expansion of transmission infrastructure and the increase in wind power generation by developing a co-optimized OTS and DLR model, demonstrating the effectiveness of the FTDLR model in mitigating network congestion, improving wind power accommodation, and reducing system dispatch cost.
