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This paper provides a convincing argument for assessing effectiveness of a pseudo-synchronizing power inverter by experimental study using a real inverter and real multiple synchronous machines. Since the renewable energy sources are being rapidly introduced to the power system, synchronous machines will be forced to stop in order to balance the supply and demand. The implementation of virtual inertia...
Reliability of network operation is becoming an important issue due to increase in renewable energy sources (RESs). The system controllability is degenerating, while uncertainty due to RESs is increasing and threatening the system security. We refer to the robustness of power system in this context as “Robust Power System Security.” This paper proposes a new approach to monitor the region of robust...
The rapid growth in the electricity demand and expansion of renewable energy (RE) generation are presenting serious challenges for the optimal network operation. The future perspective of the dramatic increase in renewable generation, such as wind and solar energy will lead to severe problems related to the load dispatch. Power system security is threatened due to increase in the uncertainties of...
Mega penetration of photovoltaic power generation (PV) will be introduced in future electric power systems, dealing with environmental problems such as global warming and energy exhaustion. The authors have pointed out that difficulties will arise in meeting the N‐1 security standard if increases in uncertainties cannot be avoided due to PV penetration. Thus, we have proposed a new concept of “robust...
Penetration of large amount of renewable energy sources (RES) may introduce considerable uncertainties in power systems making difficult the planning and operation tasks. This paper proposes a new concept named “Robust Power System Security (RS)” in order to investigate power system security in the presence of uncertainties. RS region is defined as an area of power system operation in which the system...
This paper presents a new computation method for transient stability analysis for electric power systems. Different from existing methods, a minimization problem is formulated for obtaining critical clearing time (CCT). The method is based on the computation of a trajectory on the stability boundary, which is referred to as critical trajectory in this paper. The critical trajectory is defined as the...
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