Transitioning to a New Power System with High Renewable Penetration in the Context of China’s Carbon Peak and Neutrality: Challenges and Key Technologies

A novel design of multi-layer-coordinated scheduling strategy for the distribution system

“…With the emergence of grid-connected operation scenarios of new energy represented by wind power and photovoltaic, their large-scale access to the distribution network will have an impact on various aspects such as reliability and economy of the original power supply [1][2][3]. Power system dispatching faces serious challenges, and the existing dispatching technology is severely inadequate for scenic energy consumption [4]. It is of great theoretical and practical significance to study new coordinated scheduling methods from the perspective of the convergence of long-period trend-guided benefits and short-period real-time precise control to effectively cope with the stochastic volatility of wind power photovoltaic and improve the power system's electric energy consumption capacity.…”

The Online Frequency Security Assessment of a Power System Considering the Time-Varying Characteristics of Renewable Energy Inertia

“…A low-carbon and clean energy structure has become the development direction of future energy patterns. In this context, the renewable energy industry, represented by wind power and photovoltaics, has developed rapidly [1][2][3][4]. For renewable energy systems, such as wind energy and photovoltaic (PV) systems, the maximum power point tracking (mppt) operation mode decouples the rotor kinetic energy from the grid frequency and cannot provide rotational inertia support for frequency changes when the grid frequency is disturbed [5].…”