This paper is focused on utilizing customers' flexible energy demand, including both heat demand and electricity to provide balancing resources relieve the difficulties of integrating variable wind power with combined power. The integration systems providing customers multiple options for fulfilling their described. Customer aggregators are introduced supply downstream in most economical way. Controlling consumption behaviors enables adjust response conditions. Incorporating aggregators'...

The electricity output of combined heat and power (CHP) units is constrained by their corresponding to customers' demand, which makes it difficult for the CHP frequently adjust output. Therefore, additional balancing required integrate variable wind in CHP-based integrated energy system (HE-IES). This paper expands demand response (DR) concept HE-IES. A comprehensive DR strategy combining substitution load shifting first developed exploit flexibility smart buildings. Besides electric power,...

Large-scale adoption of gas-fired power plants (GPPs) significantly accelerates the integration systems and natural gas (NGSs). Because operation NGS has a significant impact on reliability system, it is important to simultaneously evaluate reliabilities system NGS. Moreover, due stochastic failures various operating characteristics components, integrated (IGPS) considering multiple states can be viewed as multi-state system. Therefore, model proposed for evaluation IGPS based universal...

With the development of energy intelligent technology, integrated system (IES) has been widely used in field supply. While IES significantly improves efficiency, interaction between different systems may also bring multiple operational risks to reliability supply, which necessitates an effective assessment technique. Considering dynamic characteristics gas and heat can reduce losses during contingencies, provides instrument improve reliability. This paper for first time contributes a novel...

The ever-increasing utilization of natural gas has strengthened the interdependence between power system and (NGS). Due to bidirectional interactions two systems, disturbances in one may spread tothe other one, triggering a disruptive avalanche subsequent failures. When considering cascading effects, failure very small fraction components can lead catastrophic outages interdependent systems (IGPSs). This paper proposes an approach for reliability evaluation IGPSs interdependence-induced...

With the exploration of deep decarbonization around world, it has become a broad consensus that carbon trading mechanism can promote low-carbon operation energy system by exploring underlying driver emissions. The end-users, as motivator emission in integrated electricity-gas (IEGS), have not been developed so far to participate market and help emissions abatement. This paper proposes bi-level scheme on demand side considering consumption level users response. In upper-level market, an...

With the exploration of deep decarbonization around world, contradiction between low-carbon operation and energy supply in systems has been aggravating. There is an urgent need to tap interactive potential source demand sides. In view current lack efficient incentive measures for consumption, integrated response exchange (IDRX) mechanism proposed promote coordinated dispatching on source-demand side electricity-gas system (IEGS). The value model IDRX emission reduction built measure ability...

Air conditioners (ACs) are widely considered as good candidates to provide operating reserve. Demand response rebound, i.e., the rebound peak of aggregate power, may exist when ACs controlled by changing set point temperature. The during recovery period, named lag cause significantly higher demand than that prior reserve deployment event. lead is rarely in previous researches but will constrain duration time a short period (e.g., 10 min), which greatly limits utilization ACs. This paper...

The integration of the variable renewable energies makes operation conditions power system ever-changeable. Consequently, operational reliability evaluation is increasingly important. This paper introduces concept decision-dependent uncertainty (DDU) in evaluation. Unlike exogenous uncertainties, DDU reveals that decisions could significantly affect resolution uncertainties which influence metrics. In this paper, proposed modeling method links device indices, i.e., forced outage rate, and...

Conventionally, the 2-parameter Weibull model, Arrhenius-Weibull has been used vastly for transformer aging-dependent unavailability modeling. However, this model only uses lifetime feature to describe transformer's degradation process and calibrate parameters, which harms accuracy of forecasting. In response, paper develops a 3-calibratable-parameter evaluating unavailability. proposed both individualized aging threshold are taken into calibration parameters accurately characterize...

The continuous-time model is widely used to design load frequency control (LFC) schemes for power systems with delays and demand response (DR). In practice, however, the LFC system works in a sampled-data manner. plant operates continuously while updates every few seconds. This paper focuses on DR delay. Based linear quadratic regulator (LQR) theory, an optimal scheme designed regulate generation units LQR controller can be applied constant time-varying delays, regardless of DR. An observer...

This article proposes a computation offloading method to improve the revenue of virtual power plant (VPP). The cloud-edge collaboration framework is developed facilitate task, while handling communication and computational delays encountered in offered frequency regulation. impact such time on VPP's regulation worth further investigation. To this end, study optimization model for VPP based related performance. An evaluation was also built account delay VPP. Both models are used quantify...

Nowadays, integrated electricity and natural gas system (IENGS) stands as one of the most discussed topics among industry academic sectors. The interdependency issues may limit operational flexibility IENGS consequently prevent wind power integration. This article aims to solve problem by incorporating demand-side energy hubs (EHs) into scheduling IENGS. To fully exploit flexibility, detailed demand response (IDR) model is developed for EHs. Unlike traditional programs in which only elastic...

The ever-increasing penetration of renewable generation is demanding additional flexibility for the operation power systems. In this sense, it has been proved that wind generators (WPGs) can provide part required operating reserve through pitch angle control (PAC) under a deloaded strategy. Unlike conventional sources, however, provided by WPGs can't always be considered reliable, which renders system dispatch more challenging. research, capacity modeled considering decision-dependent...

Transmission defense hardening (TDH) is an effective practice to ensure the safe operation of power system during and after natural disasters, such as typhoons. However, coupling among typhoon disaster, decision, transmission line status not addressed in previous research works. Besides, enhancement measures for different types failures have yet been assessed. This paper proposes a comprehensive framework improve resilience against disasters. Firstly, motion path wind field typhoons are...

As the share of wind power in systems continues to increase, limited predictability generation brings serious potential risks system reliability. Previous research works have generally described uncertainty forecast errors (WPFEs) based on normal distribution or other standard models, which only characterize aleatory uncertainty. In fact, epistemic WPFE modeling due data and knowledge should also be addressed. This paper proposes a multi-source information fusion method (MSIFM) quantify...

The power system and the water are two important infrastructures of human society that closely related interdependent. However, reliability problems becoming more prominent. To better reveal impact complex coupling relationship between on Integrated Electricity–Water System (IEWS), this paper investigates a evaluation method IEWS based multi-state models equipment in system. Firstly, model is established failure mechanism system, such as pipes Reverse Osmosis (RO) desalination plants....

Dynamic line rating (DLR) technology dynamically adjusts the current-carrying capacity of transmission lines based on real-time environmental parameters and plays a critical role in maximizing utilization, alleviating power flow congestion, enhancing security economic efficiency systems. However, strong coupling between dynamic conditions increases system’s sensitivity to multiple uncertainties causes complications overload risk assessment. Furthermore, conventional evaluation methods...

This article presents a decentralized decision-making strategy for the multi-area integrated electricity and natural gas system (IEGS). Independent operators (ISOs) in electric power sector (NGSOs) operate their respective systems independently with consideration that limited set of information is shared, privacy independence are preserved among operators. In this article, uncertainties associated proliferation variable wind solar generation as well load forecast errors addressed...

The icing on transmission lines threatens the power system security while heat caused by losses can prevent growth. This paper proposes a preventive scheduling model for mitigating glaze optimizing distribution of ice-coated lines. An analytical growth is established based balance theory, which builds direct relationship between and losses. Accordingly, embedded into proposed to quantify impact schedules line reduce co-optimizes active dispatch, demand response, reactive optimization...