Why does Korean power system plan to provide Bess?
Due to the wide range of BESS capabilities as mentioned above, Korean power system plans to provision BESS to relieve generation curtailment and to provide FR service in the short-term applications, and to maintain frequency stability by providing FFR service in a low-inertia system for the long-term applications.
Will KEPCO tender a Bess project in ?
According to a June report by Electronic Times (ET News), an information technology media outlet based in South Korea, KEPCO announced its plan to tender contracts to build the five BESS installations, selecting bidders by October of that year.
When is a Bess allowed to operate if a power system exceeds FDB?
As previously mentioned, the BESS is allowed to operate if the power system exceeds a certain level of frequency. Instead, if the system operation is within the range of frequency dead band (∆ fdb), the SOC of BESS will be managed to be close to the desired SOC setpoint.
Does Bess charge energy if SOC is lower than setpoint?
BESS will discharge energy when the SOC is higher than the setpoint and charge the energy when the SOC is lower than the setpoint. Since the SOC control mode is operated when system frequency is within the dead-band range, it would not interfere with the FR of the system.
Why is Bess a good choice for power systems with low inertia?
Moreover, with a proper control strategy, BESS is also able to provide a fast frequency response (FFR) service needed by power systems with low inertia , , . This purpose is later addressed for solving the long-term stability issues in the Korean power system.
How many companies are involved in the Bess project?
In total, 14 companies were involved, including HD Hyundai Electric, Hyosung Heavy Industries, LS Electric, Samsung SDI, LG Energy Solution, and others. HD Hyundai Electric announced the completion and start of operation of its 336MW BESS for the utility a couple of months ago.
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