In this paper, an active damping control strategy based on capacitance and voltage feedback is proposed to solve the resonance problem of three-phase LCL inverter grid-connected system. To solve the problem that the p...
详细信息
Under the background that countries all over the world constantly advocate energy conservation and emission reduction and seek to deepen the reform of powersystems and introduce new energy trading policies, this stud...
详细信息
With the rise of the application of sharing economy in various fields of powersystem, As a typical application of shared economy in the field of energy storage, the optimal allocation of shared energy storage on the ...
With the rise of the application of sharing economy in various fields of powersystem, As a typical application of shared economy in the field of energy storage, the optimal allocation of shared energy storage on the source-network-load side has been a great topic. The problem dealt with in this paper is the configuration result of the source-grid-load energy storage system under the same control strategy. This paper designs an optimization method for the source-network-load side configuration of generalized shared energy storage in regional power grid: Firstly, according to the extensional usage scenario and demand of energy storage, the alternative set of shared energy storage configuration is constructed. Secondly, based on the profit model of shared energy storage, a powersystem source-network-load optimization scheduling strategy is proposed. Finally, a numerical example is carried out to prove the feasibility and efficacy of the suggested method.
The large-scale access of renewableenergy to the power grid leads to a sharp increase in the demand for powersystem regulation capacity. In order to solve this problem, this paper explores the mechanism of supply an...
详细信息
ISBN:
(数字)9798331518806
ISBN:
(纸本)9798331518813
The large-scale access of renewableenergy to the power grid leads to a sharp increase in the demand for powersystem regulation capacity. In order to solve this problem, this paper explores the mechanism of supply and demand balance of powersystem regulation capacity, analyzes the transmission characteristics of regulation capacity, and proposes the adequacy index of node regulation capacity and the adequacy index of network transmission regulation capacity. The Garver-6 node system is used to verify the effectiveness and practicability of the proposed method. The example shows that the proposed evaluation method can accurately identify the weak links of regulation ability and clarify the causes of insufficient regulation ability.
The operating conditions of the powersystem have become more complex and changeable. This paper proposes a probabilistic power flow calculation method based on the cumulant method for the voltage sourced converter hi...
详细信息
High penetration wind power grid with energy storage system can effectively improve peak load regulation pressure and increase wind power capacity. In this paper, a capacity allocation method of energy storage system ...
详细信息
Large wind farms connected to the grid through MMC-HVDC systems can cause overloading of the non-faulty converter station after a DC fault. This short communication proposes a system fault ride-through method by coord...
详细信息
DC grid based on hybrid modular multilevel converter (MMC) is an effective means to achieve large-scale renewableenergy integration, multi-energy complementarity and friendly grid-connection. Aiming at the problem th...
详细信息
Modular multilevel converter (MMC) has complex topology, control architecture and broadband harmonic spectrum. For this, linear-time-periodic (LTP) theory, covering multi-harmonic coupling relations, has been adopted ...
详细信息
With the increasing proportion of renewableenergy sources such as wind power in the energy structure, high penetration of wind power has become crucial for the normal operation of the powersystem. In order to improv...
详细信息
ISBN:
(数字)9798331523527
ISBN:
(纸本)9798331523534
With the increasing proportion of renewableenergy sources such as wind power in the energy structure, high penetration of wind power has become crucial for the normal operation of the powersystem. In order to improve the accuracy of wind power prediction, this study proposes a wind speed correction algorithm based on improved Hilbert-Huang Transform (iHHT), and introduces TSLANet network for multi-step prediction of ultra short term wind power. Firstly, the improved HHT method was used to decompose and analyze the wind speed in Numerical Weather Prediction (NWP), effectively solving the mode mixing problem in Empirical Mode Decomposition (EMD). Next, model the model through linear network layers and determine the weight coefficients. Finally, the corrected wind speed data is input into the TSLANet network for feature learning and ultra short term multi-step wind power prediction. The experimental results indicate that the method proposed in this study can effectively improve the accuracy of power prediction.
暂无评论