What is a multi-storage integrated energy system?

To address the insufficient flexibility of multi-energy coupling in the integrated energy system and the overall strategic demand of low-carbon development, a multi-storage integrated energy system architecture that includes electric storage, heat storage and hydrogen storage is established.

Is hydrogen storage a hybrid energy storage unit?

Literature 19 considers hydrogen storage and electric storage as hybrid energy storage units, and a multisource microgrid optimal scheduling model is built to solve the uncertainty of renewable energy in the power market and the penalty deviation in the regulatory market.

What is the hierarchical control strategy for Integrated Energy Systems?

The hierarchical control strategy proposed in this paper mainly focuses on exploring the effects of active power fluctuations on the operation of integrated energy systems, without considering other factors such as reactive power and power factor, which may lead to incomplete adaptation to the actual load demand characteristics.

How are energy supply priority weight values assigned to different energy storage units?

According to the carbon emission cost of various energy sources, different energy supply priority weight values are assigned to various energy storage units according to the carbon emission cost. The hierarchical energy supply control strategy is shown in Fig. 2: Hierarchical energy supply control strategy.

What are the energy supply units in the IES?

The energy supply unit in the IES includes new energy units, diesel units, gas turbine units and refrigeration units, among which the coupling transformation constraints of various units have been stated in Section II, and only the upper and lower limits of power are restricted here. The expression is as follows:

Does multi-level energy supply strategy improve IES economic benefits and local consumption?

At the same time, the feasibility and superiority of the multi-level energy supply strategy in the annual cycle were verified by multi-scenario simulation analysis. The results showed that the multi-level energy supply strategy had a significant effect on the improvement of IES economic benefits and local consumption of new energy.