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With the increasing of thermostatically controlled load proportion and the accessing of renewable energy, problems caused by the uncertainty of load becoming non-negligible for load restoration. In this paper, we focus on deal with uncertainty problems of load restoration during the last stage of network reconfiguration. Primarily, Conditional Value-at-Risk (CVaR) is introduced to describe load randomness...
Wind power ramp event has obvious time-sequence characteristics whose probability is small but the risk is high. It is a small probability and high risk event. The risk assessment method based on the traditional expected utility theory is difficult to distinguish them from the conventional wind power fluctuation. Aiming at this problem, according to the rule of risk aversion, a model of risk assessment...
With the increase of wind power penetration, the impact of wind power ramp event on power system becomes more and more serious. To assess the impact of it on power system, the characteristic and development process of wind power ramp event is analyzed, and a time-dependent outage model of conventional generators which is appropriate to wind power ramp event is constructed base on Monte-Carlo method...
The component outage models in operation risk assessment should reflect not only system operation information but also the weather conditions. A composite outage model combining the weather conditioned time-varying model and overload conditioned outage model is built to simulate transmission line failure rates. This paper focuses on the weather impact on system risk as weather conditions influence...
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