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This paper presents a model predictive control (MPC) approach to economic scheduling for a building microgrid at California State University, Long Beach. We first propose a peak demand cost model to extend MPC-based microgrid energy scheduling. The corresponding objective function is then formulated as a mixed-integer linear programming (MILP) problem. The MPC framework is implemented into MILP optimization...
This paper studies the effects of inter-area oscillations on a practical two-area system using Real-Time Digital Simulator (RTDS). RTDS is a hardware-in-the-loop simulator, which enables the real-time analysis and testing of devices in a controlled environment before they are actually connected to the grid. We study the two-area system stability with and without power system stabilizer (PSS). The...
This paper presents a model-based validation process for selecting the components of a hybrid electric race vehicle. We analyze the performance of the electrical and mechanical systems of a high performance hydrogen fuel cell/ultracapacitor hybrid go-kart with four Brushless DC motors during its initial acceleration, top speed, and braking operation. Verification and refinement is made to achieve...
This paper proposes a resilient architecture for distributed frequency regulation (DFR) during communication failures. The DFR algorithm relies on the communication network for exchanging information between prosumers and obtaining stabilizing control actions, which can bring overall frequency deviations to nominal. Failures in the communication network can jeopardize the functionality of DFR and...
This paper proposes a general framework for determining the effect of communication delays on the convergence of certain distributed frequency regulation (DFR) protocols for prosumer-based energy systems, where prosumers are serving as balancing areas. DFR relies on iterative and distributed optimization algorithms to obtain an optimal feedback law for frequency regulation. But, it is, in general,...
This paper proposes a general framework for implementing distributed frequency regulation (DFR) on large-scale prosumer-based power systems, where each prosumer represents a frequency control area. DFR is a distributed architecture for balancing power between larger prosumers, such as utilities and ISOs (Independent System Operators). This paper first introduces a framework to obtain quasi-steady...
This paper proposes that a reliable and efficient integration of distributed generators (DGs) needs strategic planning and operation for distribution systems. The paper illustrates that today's policies such as plug-and-play and those outlined under IEEE standard 1547 cannot support a large penetration of DGs sending power to the grid. The paper explores possible challenges and potential opportunities...
This paper recognizes that the large resistance to reactance line ratio in distribution systems may create strong coupling between real and reactive power dynamics. To model this coupling, a new coupled real-power voltage dynamic model for future distribution energy systems with a large penetration of distributed generation (DG) units is derived. The proposed dynamic model offers an intuitive physical...
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