State Grid’s Lei Pioneers Heat Storage Solution for Winter Grid Stability

In the heart of China’s energy landscape, a groundbreaking study led by Yi Lei from State Grid Hubei Province Power Company Maintenance Company is set to revolutionize how we manage power and heat, especially during the challenging winter months. The research, published in ‘Zhongguo dianli’ (China Electric Power), addresses a critical issue: the simultaneous peak in heating demand, hydropower dry season, and large-scale wind power generation. This overlap often leads to significant wind curtailment and environmental pollution, a problem that Lei and his team have tackled head-on.

The study introduces a novel approach using controllable heat storage electric boilers as peak regulation and dispatch resources. These boilers can help reduce the forced output of combined heat and power (CHP) units, flattening the load curve by lowering peak loads and raising valley loads. This method not only enhances the power grid’s ability to accommodate wind power but also creates a more efficient and environmentally friendly energy system.

“By decoupling heat and power, we can better integrate renewable energy sources like wind power into the grid,” Lei explains. “This not only reduces the strain on traditional power plants but also minimizes environmental impact.”

The research delves into the power-heat coupling characteristics of CHP units, formulating a heat-power decoupling scheme for wind power-heat storage compensation. The team developed a multi-objective load-dispatching model aimed at minimizing both operational costs and pollutant emissions. To solve this complex model, they employed a corrected multi-objective particle swarm optimization algorithm, ensuring the diversity of the Pareto set through a niche method.

The implications of this research are vast. For the energy sector, this means more efficient use of renewable energy sources, reduced reliance on fossil fuels, and a significant cut in greenhouse gas emissions. Commercial impacts could include cost savings for energy providers and consumers alike, as well as new opportunities for innovation in heat storage technologies.

“Our case study shows that the proposed dispatching scheme with electric boiler heat storage can effectively promote the accommodation of wind power with optimum environmental and economic benefits,” Lei states. This breakthrough could pave the way for future developments in smart grid technologies, making energy systems more resilient and sustainable.

As the energy sector continues to evolve, research like Lei’s offers a glimpse into a future where energy is not just clean and efficient but also seamlessly integrated into our daily lives. The study, published in ‘Zhongguo dianli’ (China Electric Power), is a testament to the innovative spirit driving the energy revolution forward.

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