Wind power forecasting (WPF) systems are essential to maintain the safe and stable operation of the power system in case of large-scale grid-connected wind farms. However, the current forecasting has the problem of di...
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Humanoid robots,increasingly recognized for their potential to drive economic and social development,have garnered significant attention in recent *** paper aims to provide a comprehensive overview of the progress,cha...
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Humanoid robots,increasingly recognized for their potential to drive economic and social development,have garnered significant attention in recent *** paper aims to provide a comprehensive overview of the progress,challenges,and future directions in humanoid robotics,with a particular emphasis on essential system components and key technological *** a review of historical milestones,this paper explores critical aspects such as the design of the head and body,and examines state-of-the-art technologies in areas like locomotion control,perception,and intelligent *** presenting a thorough analysis of the field,this work aims to serve as a valuable resource for researchers and inspire future innovations that will drive the continued evolution of humanoid robots.
High percentage of photovoltaic gain connect to the wire line, so that the electricity grid from power distribution of the receiving end of the network into a set of production, storage, distribution of multi-source c...
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In N-module motors, uniform carrier phase shifting (UCPS) by 2π/N between modules can effectively suppress torque harmonics caused by high-frequency switching of power devices. In multi-module motors with fractional-...
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Currently, the power electronics-based devices, includinglarge-scale non-synchronized generators and reactivepower compensators, are widely used in power grids. This helpsintroduce the coupling interactions between th...
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Currently, the power electronics-based devices, includinglarge-scale non-synchronized generators and reactivepower compensators, are widely used in power grids. This helpsintroduce the coupling interactions between the devices andthe power grid, resulting in a new sub-synchronous oscillationphenomenon. It is a critical element for the stability operation ofthe power grid and its devices. In this paper, the sub-synchronousoscillation phenomenon of the power grid connected with largescalewind power generation is analyzed in detail. Then, inorder to damp the sub-synchronous oscillation, a coordinateddamping optimization control strategy for wind power generatorsand their reactive power compensators is proposed. The proposedcoordinated control strategy tracks the sub-synchronousoscillation current signal to correct the corresponding controlsignal, which increases the damping of power electronics. Theresponse characteristics of the proposed control strategy areanalyzed, and a self-optimization parameter tuning method basedon sensitivity analysis is proposed. The simulation results validatethe effectiveness and the availability of the proposed controlstrategy.
In this paper, the space regenerative ORC (SRORC) system is proposed. In SRORC system, the superheated working fluid is divided into two parts after it works completely in the expander. The performance of SRORC system...
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The spread of the power electronics, both for control and power applications, in the realization of apparatuses the DC transformation in building distribution and utilization system. Currently, the research and discus...
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1|INTRODUCTION In Linyi,Shandong,China,researchers used 100%grid-forming(GFM)photovoltaics(PVs)to power the microgrid without the conventional synchronous *** microgrid operates independently and stably supporting the...
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1|INTRODUCTION In Linyi,Shandong,China,researchers used 100%grid-forming(GFM)photovoltaics(PVs)to power the microgrid without the conventional synchronous *** microgrid operates independently and stably supporting the seamless transition between islanded and grid-connected *** to the grid-following(GFL)method,GFM enables renewable sources to behave like voltage sources with the transient frequency and voltage *** is the key technology for the renewable generations to replace the con-ventional generations to maintain the synchronous stability of the ***,most GFM methods are developed for the battery energy storage system(BESS)and focus on the single-machine level to emulate the conventional synchronous machine,such as virtual synchronous machine(VSM)1 and droop control.2 These methods tend to lose the synchronous stability in response to the large disturbances under the multi-machine conditions.
The TPU (Thermal power Unit) equipped with HESS (Hybrid Energy Storage System) can effectively increase of FM (Frequency Modulation) performance of the unit and decrease the FM loss of the thermal power unit. The diff...
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Due to the influence of global warming, extreme wind weather occurs frequently, especially in extreme weather such as typhoons and cold waves, problems such as wind turbine shutdown, cutting out, and sudden changes in...
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