The work develops an insect-scale soft robot capable of fast directional locomotion actuated by itself spring-like body composed shape memory alloy wires (SMAWs)-based composite. composite is fabricated integrating polydimethylsiloxane (PDMS) matrix, 3D printed acrylonitrile-butadiene-styrene (ABS) substrate, and parallel multi-SMAWs with the diameter 0.075 mm. Since it can implant thermal-induced SMAW deformation rapidly cause elastic recovery feature ABS resin material, act as robotic...

With the mass introduction of wind power in Northern China, variability has appeared. In this article, both existing electric heat pumps (EHPs) and coal-fired combined (CHP) facilities, which are generally equipped with extraction-condensing steam turbines coupled district heating for space purposes, proposed to incorporate equivalently. The authors’ proposal arises from facts that: (1) EHPs can provide domestic sector little thermal comfort change (e.g., energy carriers purposes be switched...

Aiming at the challenge of large-scale wind power integration, a new method for integrating heating load and storage control is proposed based on district energy system with core CHP. In method, thermal (TES) can increase flexibility CHP's heat output to follow fluctuation power. The distributed electric pumps (EHPs) are used capability balance electricity demand. addition, building inertia human comfort taken into account make consumption EHPs At last, simulation results show effect...

This paper proposes a new scheme for locating the faults of three-terminal double-circuit transmission line without transposer in phase domain that is not affected by type fault. Synchronous voltage and current were measured phasor measurement units (PMUs) installed at three busbars. Considering coupling effect parallel lines, distribution model was used to obtain more accurate results third-order Taylor series expansion decouple distributed model. The branch all on lines effectively...

In Northern China, due to the high penetration of coal-fired cogeneration facilities, which are generally equipped with extraction-condensing steam turbines, lots wind power resources may be wasted during heating season. contrast, considerable coal is consumed in generation sector. this article, firstly it revealed that there exists a serious divergence ratio electrical thermal energy between end users’ demand and cogenerations’ production off-peak load at night, negate active...

In China, there have been high penetrations of coalfired cogeneration facilities which are generally equipped with extraction-condensing steam turbines. Considerable coal is consumed in the power generation sector, and a lot wind resources may be abandoned simultaneously, has ridiculous phenomenon practice Northern China. A proposal given this article, so as to enable more integration power. The authors suggest that if energy carrier for part end users' space heating switched from water...

The climate and environmental pollution problems caused by carbon dioxide other harmful gases emitted from traditional fossil fuel thermal power plants are increasingly threatening the living environment of mankind. In September, 2020, Chinese government clearly put forward national strategic goal "Carbon Peak Carbon Neutrality". Distributed generation is main means to effectively reduce emissions, especially rapid development wind generation. Accurate stable speed prediction can reasonably...

This paper aims at the difficulties in peak load supply and wind power integration with combined heat (CHP) widely used North of China. Currently CHP units are excluded for electricity regulation is abandoned time low demand. In this paper, a method integrated heating control based on smart grid technology proposed introduction electric pumps (EHPs) considering delay due to distance. According aforementioned methodologies, enabled: Firstly, or power, water from suggested be shaved so as...

The rapid increase in the number of 5G base stations has led to a massive energy consumption. Therefore, research on energy-saving technologies for is paramount importance. To deal with characteristics small-scale, widely distributed, and unattended stations, cabinet-level cooling solution based integrated heat pipe system proposed. And genetic algorithm linear fitting efficiency optimization strategy introduced. An experiment was carried out verify accuracy saving effects optimization....

In this paper, the environmental and economic indicators based on reactive power pricing are proposed so as to formulate novel dispatch (NEED) problems for electricity trading. Here, a new way of calculating total cost is instead pure fuel cost, which leads NEED problems. addition, an improved tunicate swarm algorithm (ITSA) deal with Different from original (TSA), adaptive weight parameter mutation process used improve disadvantages TSA converges too fast easily falls into local optimum....

In order to effectively solve the problems of power system front-end technology diversification and low explicit programming efficiency, a "visual programming" method based on low-code development platform is proposed. This uses component-based graphical tools build pages, designs data collection forms through platform, delivers collected back-end neural network model for training, so as predict fault risk distribution line units, improve enterprise's ability adapt demand changes, carry out...

As distributed power sources and electronic equipment are continuously connected to the distribution network, electronics on network side increasingly deepened. At same time, unreasonable access a large number of can negatively affect radial network. In this paper, we consider drop control realize for impact brought by basis, improved Tunicate Swarm algorithm(ISC-TSA) conduct simulation experiments in IEEE-69 system optimal allocation compare scenarios with without considering respectively....

In response to the unique topographical challenges posed by mountainous environments, this paper investigates a probabilistic model of electric vehicle charging load, taking into account traffic behavior and regional characteristics cities. Regarding behavior, first, road network for cities is proposed. Next, travel chain theory combined with consider functional partition city, which can better describe patterns users. Based on analysis exploring influences ambient temperature, grade,...

In order to mitigate the impact of large-scale new energy vehicle charging access grid, edge computing technology is widely used in smart perception scenarios. By deploying various terminal devices or application software at sites, it can collect and predict power load regions, so as effectively guide control amount vehicles. However, with increase demand brought by device nodes, server may face problem insufficient resources, which will affect low latency characteristics. To alleviate this...

In today's distribution networks, there is an increasing proportion of power electronic devices and a large-scale integration new energy generation, which has led to the emergence "double high" problem transformed network into active network. The faces challenges such as growing demand for load renewable sources. order improve reliability network, reduce transmission losses, promote utilization energy, this paper introduces distributed generation (DG) static compensator (SC) considering...

This paper presents an enhanced prediction model for short-term forecasting of photovoltaic (PV) output, utilizing a Convolutional Neural Network-Gated Recurrent Unit (CNN-GRU) network improved by the Dung Beetle Optimization algorithm (DBO). Comparative analyses with traditional methods (LSTM, BiLSTM, CNN-BiLSTM) reveal that DBO-CNN-GRU exhibits superior local and global search performance. Addressing cooperative optimization scheduling challenges in transmission distribution networks post-...

In the original version of article published in Energies [1], insufficient acknowledgement was given for contributors Mr. Li Guo and Prof. Kai Wu Xi’an Jiaotong University. The main work completed by research group University led Wu. his master student who gave a lot efforts measurement daily loads heating electricity different families, data used Section 2.1. involved whole work; he put forward basic idea, made plan participated detailed discussion about algorithm calculation. [...]

Abstract Due to high power load peaks and long durations in extreme weather conditions, as well large-scale unscheduled electric vehicles charging, it may cause “peak plus peak” loading local areas of the grid, moreover, lead transformer substations overload operation areas, which is not good for distribution safe stable grid. Considering driver’s willingness, this study proposes an orderly charging strategy based on temperature control vehicle on-board air conditioner. The proposed first...

In electricity market, both power system safety and cost need to be considered during the trading. So multi-objective optimal flow (MOOPF) mathematical model is formulated for with reactive cost, which contains various operational constraints, equation inequality constraints. addition, a modified sooty tern optimization algorithm (MSTOA) proposed solve MOOPF problem, fully validated on IEEE30 test system. Moreover, constrained prior strategy based Pareto-dominant (CPSP) solving constraints...