Abstract—The equalization strategy simply based on cell voltage or state of charge is used in pure electric racing car. However, there is deviation in estimating state of charge or detecting cell voltage, which causes switches to open and close frequently or improperly, lowing equalization efficiency....

Abstract—In order to analyze the gas decomposition products under partial discharge by quality and by quantity, designed a 126kV AC industrial frequency power supply, a GIS partial discharge testing platform and a gas detection system, simulated the fault model of ground discharge, used pulse current...

Abstract—This paper presents a controller for DER inverters in the distribution side to act as shunt active filters and mitigate the power quality issues in the grid without the installation of additional FACTS devices. The inverter is able to inject the real power available at the DC link from renewable...

Abstract—With the promotion of the new urbanization and beautiful countryside macro policy in China, the development of the rural power grid is driven fast. Rural customers have higher expectations of power supply service, and they pay more attention to service experience and efficiency. Under the new...

Abstract—Performances of AGC and generators’ valve controllers, connected through AGC allocation strategy, both influence active power balance in power systems. In this paper, authors consider that when distributing the whole regulation demand, AGC should give consideration to the bottom-level generator...

Abstract—Transformer power system is one of the most important electrical equipment, winding transformer failure is an important cause of damage and threaten the safe operation of the power grid. Through theoretical analysis, we propose a Lissajous analysis of transformer voltage / current characteristic...

Abstract—The integrated intelligent multi-window alarm interactive interface has been widely used in dispatching automation system in recent years. Integrated intelligent alarm picture is a multi-window interface which is composed of power-flow diagram, station maps, tables, text and other elements....

Abstract—The popularity of electric vehicle (EV) will greatly impact on the distribution network. An intelligent charging mode based on the current peak-valley time-of-use (TOU) power price is presented. Charging models of private EV under three charging modes in residential districts are established....

Abstract—The insulating state detection of capacitive equipment has been a long time, but the actual effect is not satisfactory. It mainly because low-precision measurement and cannot overcome the location interference which can cause mutation of measured data. The reliability of the device is low. This...

Abstract—In order to optimize the design of optical current transformer and cut down the development cycle, the electromagnetic design software with Ansoft and VB is developed in this paper. The interface technology between Ansoft and VB is proposed to achieve the mixed programming, obtain the visualization...

Abstract—Power quality improvement can be done effectively by adding passive or active filters in series or parallel with the line. Active filters perform efficiently but it is not cost effective. Traditional passive filters are cost effective but they are permanently connected to the system and draw...

Abstract—The major content of this paper is to study the operation data of a demonstration program in Shanghai to match the system’s output power curves with power load in practical through its different installed capacity. Efforts was made to find out a more optimized scheme for PV system’s capacity...

Abstract—This paper, firstly, pointed out the reactive power compensation concepts, principles and importance for safe and economic operation of the grid. It had a detailed description of the technical principles of several major reactive power compensation devices and illustrated the application of...

Abstract—In order to meet the development trend of smart grid, the correlated equilibrium Q-learning (CEQ) algorithm is proposed for multi-regional reactive power optimization. Meanwhile, in response to the national strategy of low carbon environmental protection, CO2 emission is considered as one of...

Abstract—Uncertainty assessment is a quantitative method about accuracy grade. This essay mainly focused on the principle of uncertainty analysis, including establish the uncertainty analysis model, assess the uncertainty components of type A and type B, and calculate the sensitivity coefficient and...

Abstract—By study on lightning data in 2010~2013 from lightning location system of Hainan Power Grid Corporation, the spatial-temporal distribution of flashes on Hainan island were achieved. The results showed that Hainan thunderstorm activity was very frequent, where a high number of lightning occurred...

Abstract—Distributed photovoltaic power generation system can better alleviate the problems of energy shortage and environmental pollution. To save the photovoltaic industry, the state introduced continuous policiesy since 2012, strongly supported the development of distributed photovoltaic power generation...

Abstract—The paper establishes an energy efficiency index system of pumped storage power station, and designs a dynamic comprehensive evaluation algorithm of energy efficiency levels for pumped storage power station based on comprehensive objective and subjective weighting method, which uses the historical...

Abstract—The power emergency data transmission and collection need to grasp the overall data and the inter-departmental data. Research on emergency data exchange technology is important for electricity emergency projects. This paper in-depth studies the power emergency data exchange technology. The author...