Power grid interconnection has gained attention in Northeast Asia (NEA) as a means to build an economically efficient power system and to effectively utilize renewable energy, such as wind and solar resources in the Gobi Desert and hydro resources in Eastern Russia.
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May 2016
Power system shows a new grid structure consisting of hybrid powers with large-scale renewable energy incorporated into grid. In order to reduce impact of renewable energy on system operation, this paper presents a coping strategy in short-term dispatch level, based on virtual power configuration. The strategy defines load tracking index, using complementary nature of powers and bundling
... [Show full abstract] renewable energy and conventional power according to some proportion, making the power integrated into grid well follow load changes. Then hydropower units play full secondary peak-shaving role on corrected load curve, helping thermal units to incorporate into grid. Ultimately this strategy maximizes peak-shaving, economic and environmental benefits of multi-source hybrid power system including wind, solar, hydro and thermal sources. Taking Gansu power grid as an example, simulation results verify validity of the model. Read more December 2016
The potential increase of the connected capacity of renewable energy sources in Saudi Arabia will open the doors for more investment in energy storage especially pumped storage hydro (PSH). New PSH, particularly in areas with increased wind and solar capacity, would significantly improve system reliability while reducing the need to construct new fossil-fueled generation. PSH is proving to be an
... [Show full abstract] established technology for renewable power because it can absorb excess generation and release it during peak demand times. PSH can also provide many ancillary services to the power system that should be added to the benefits of PSH projects, such as increased flexibility, primary frequency response, following reserves, and fast-acting regulation reserves. PSH is typically not adequately represented during the optimization of the commitment and dispatch formulations in which reduces their perceived benefits. The paper discusses how to quantify PSH benefits to the power system operators so that the PSH projects would be more economically viable to the Kingdom and more appealing for private investment. Potential market changes that can help PSH in today's restructured markets are presented and discussed in this paper. Read more Last Updated: 05 Jul 2022
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