Xinyang Power Supply Company

Henan’an, China

Xinyang Power Supply Company

Henan’an, China
SEARCH FILTERS
Time filter
Source Type

Zhang M.,Xinyang Power Supply Company | Wei H.,Xinyang Power Supply Company | Feng W.,Zhengzhou University of Light Industry
Lecture Notes in Electrical Engineering | Year: 2014

In time domain the asynchronous sampling is easy realized in hardware, but it leads to measurement error in energy measurement. Modified compound Simpson integral method is proposed to reduce the error. The computing formula is deduced. Ideal signals and distortion signals are simulated. Simulating results show the proposed integral method has the highest precision, compared with previous method, the precision is improved dramatically. The results also show the sampling rate has little influence on the measurement accuracy. So the new algorithm is practical and is easy realized by DSP. © Springer International Publishing Switzerland 2014.


Ren G.W.,Xinyang Power Supply Company | Ren R.,Luoshan Power Supply Company | Dai H.Y.,North China Electrical Power University
Applied Mechanics and Materials | Year: 2014

An important part of power grid voltage stability online intelligent warning system was to research into the current Energy Management System real-time power grid operation parameters and power networks offline data splicing integration, form a set of online dynamic simulation trend data, and implement preventive voltage stability calculation. A splicing model of power grid online data integration and practice was established, and a grid online data splicing method was proposed, which had been verified by actual data. The method of practical data online and offline networks data integration can significantly improve the accuracy of the simulation data. © (2014) Trans Tech Publications, Switzerland.


Ren G.W.,Xinyang Power Supply Company | Ren R.,Luoshan Power Supply Company | An N.,China Electric Power Research Institute
Applied Mechanics and Materials | Year: 2014

An important part of the Xinyang power grid voltage stability online intelligent warning system was to research into the current system of EMS real-time power grid operation parameters and power networks offline data splicing integration, forming a set of online PSASP (Power System Analysis Software Package) trend data, implementing preventive voltage stability calculation. By splicing model of Xinyang grid online data integration and practice, summed up the grid online data splicing method and the model, this article mainly introduced the offline and online data mapping change reason, function is established. It had been verified by actual data achieved by the method can significantly improve the accuracy of the data. It was a kind of practical data online and offline networks data integration method. © (2014) Trans Tech Publications, Switzerland.


Fan Y.L.,Xinyang Power Supply Company | Li Q.E.,Xinyang Power Supply Company
Advanced Materials Research | Year: 2014

Relaying protection is very important for electric system, in order to ensure electric system normal usage, the safeguard procedures are needed. The protective relaying is main and active manner. The protective relaying significance and equipment employments and maintain is analyzed in this paper, and protective relaying technology developing prospect is also introduced in this paper. © (2014) Trans Tech Publications, Switzerland.


Jia Y.,Xinyang Power Supply Company | Liu J.C.,Xinyang Power Supply Company
Advanced Materials Research | Year: 2014

This paper introduces the reactive power compensation technology in the development of power system. From the new technology of reactive power compensation, controller, capacitor connection mode and switching on-off switch to briefly describes the current situation of the development of reactive compensation technology. © (2013) Trans Tech Publications, Switzerland.


Xu J.,Xinyang power supply company | Huang Y.-F.,Xinyang power supply company | Wang Z.X.,Xinyang power supply company
Advanced Materials Research | Year: 2014

The safety of power grid scheduling is the key to ensure the safe and stable operation of power grid. Scheduling work dangerous point analysis, formulate measures, strengthen precontrol is important means to ensure the safety of power grid. Introduces the analysis of the dispatching work dangerous points and preview. This paper expounds the main work and status quo of power system dispatching operation management, and puts forward solutions. © (2014) Trans Tech Publications, Switzerland.


Ren G.W.,Xinyang Power Supply Company
Advanced Materials Research | Year: 2013

Based on low frequency load-shedding practice experiments of Xinyang power supply company, work principles as 'three reports, one examination and a table modification' is proposed to improve the management of power grid in substitute district. The methods introduced in the paper is proved to be effective in the practice. © (2013) Trans Tech Publications, Switzerland.


Juan X.,Xinyang Power Supply Company | Yang J.,Xinyang Power Supply Company | Zhen Y.,Xinyang Power Supply Company
WIT Transactions on Information and Communication Technologies | Year: 2014

The four-phase transmission line has good symmetry and simple tower structure. Thus, it has a unique advantage in the multiphase transmission lines and can meet the needs of the current environmental protection and electric power market, which has a broad development prospects. In this paper, the mature coordinate transform theory in three-phase has been expanded to the four-phase system. Therefore, park transformation, Clarke transform and symmetrical component transformation about four-phase system have been put forward preliminary. The study in this paper has improved the theory about four-phase transmission system, which has a certain theoretical research and practical application value. © 2014 WIT Press.


Fan Y.L.,Xinyang Power Supply Company | Li Q.E.,Xinyang Power Supply Company
Advanced Materials Research | Year: 2013

The low-voltage distribution system is the key component of the electrical power system. Some analysis and research of the low-voltage distribution system is carried out in this paper, which provides some scientific basis to design the low-voltage distribution system. Firstly, the summarize of low-voltage distribution system is taken. The influence to productions and livings of low-voltage distribution system is introduced. Secondly, the mode of connection and design philosophy of low-voltage distribution system is studied in detail, especially the high-rise buildings low-voltage distribution system is concluded and summarized. © (2013) Trans Tech Publications, Switzerland.


Long H.,Xinyang Power Supply Company
WIT Transactions on Information and Communication Technologies | Year: 2014

Multistage transmission expansion planning (MTEP) problem is a nonlinear and nonconvex optimization problem. The complexity will increase rapidly when the decision variables and the number of the planning stages increase. In this paper, we use an improved plant growth simulation algorithm (PGSA) to solve this problem. Due to the ineffective convergence of the classic PGSA, an optimal growth strategy based on greedy idea is applied to accelerate its convergence. As a result, the optimal solution can be obtained even faster. Then a test is performed on a 19-bus system to verify the practicability and effectiveness of the improved PGSA. Compared with the classic PGSA, it is showed that our algorithm has certain advantages on computation and convergence speed when solving MTEP. © 2014 WIT Press.

Loading Xinyang Power Supply Company collaborators
Loading Xinyang Power Supply Company collaborators