The randomness and intermittency of renewable energy on the stability of the power system are overcame by the combination of wind-photovoltaic-pumped storage. Thirdly, the model for the joint optimal dispatch of short-term wind, photovoltaic, hydropower and thermal power systems with pumped storage is developed with system economics as the goal.
An optimal dispatching method for distributed energy resources considering new energy consumption is proposed. The optimal dispatching method used in this paper integrates various available resources of the microgrid, enhances the flexibility of system dispatching, relieves the pressure on the grid.
According to the data presented in this figure, by configuring energy storage systems at node 32, maximum power of the load is reduced from nearly 1 MW to 0.74 MW, effectively alleviating the problem of heavy load on this line and enhancing the regulatory ability of the system.
Results show that ESS function well on the basis of the proposed model and control scheme, and also demonstrate the superiority of the novel algorithm. Energy storage systems (ESS) are indispensable building blocks of power systems with a high share of variable renewable energy.
In the intra-day stage, the adjustment reserve of generation and AA-CAES can also decrease. In this way, the total dispatch cost decreases. Therefore, by adjusting the confidence level and the quantity of sampling data, the power grid operators can balance the dispatch economy and frequency security. Table 5.
The integrated system of multiple energy sources in a county-wide station area contains multiple energy sources, and the optimization objectives of economy, reliability and environmental protection should be considered to establish accurate models of different distributed power sources. 3.1. Photovoltaic power generation system
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