Soc operation limit of energy storage power station

Should thermal power units meet the SOC state limit?

In the past power grid dispatching, for the frequency regulation constraint of the combined system of thermal and energy storage, the thermal power units should meet its climbing ability and the energy storage should meet the SOC state limit, as described below.

How does SoC planning affect energy storage?

Under the influence of SOC planning, the energy storage stations in Strategy 5 follow the SOC recovery sequence of “higher SOC leads to higher discharge power, while lower SOC leads to higher charging power.” As a result, the SOC of the ESS tends to shift towards 0.5.

Is energy storage frequency regulation loss based on SoC?

Existing research on energy storage frequency regulation loss mainly focuses on two aspects : one is to establish a loss model based on SOC, and the other is to establish a loss cost model. According to the real-time AGC instruction. Literature [17, 18] has proposed supplementary control units for battery energy SOC management.

How is the life of energy storage related to SOC?

The life of energy storage is related to SOC. Taking the SOC offset of energy storage as the goal, considering the SOC off-limit state, the output of energy storage is constrained to ensure sufficient frequency regulation ability. According to the SOC state of energy storage, the SOC deviation coefficient is set to realize SOC recovery.

Can battery Sox control power grid frequency regulation?

To solve these problems, we need to formulate effective power dispatching control and energy management strategies. Therefore, this paper proposes a control method based on battery SOX, which is used for BESS to participate in power grid frequency regulation.

Which section describes energy management strategy considering SOx of battery?

Section 3 describes energy management strategy considering SOX of battery. Simulation results are shown in Section 4. Section 5 is conclusion. 2. Battery management analysis 2.1. SOC error and battery calibration