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Abstract:Along w ith increa singly promine nt enviro nment and en ergy issues, the polic y support for solar P V pow er generation in China is co nstantly strengthened. With a batch o f concentrated PV power stations (at 100 M Wp and above) combined to the grid for power generation, the proportion of installed capacity of solar power generation in the grid structure continuously increases. The connection of a large quantity of PV power supplies to power grid will affect the electric energy quality of power distribution network. The l evel of au tomation, informatization and intelligence of pow er station ca n be improved by means of a data acquis ition and con trol, anal ysis, predic tion and di agnosis system which can o perate automatically and has c omplete functions, to maintain safe a nd stable operation of power grid. This pa per introduces the characteristics of computer supervisory control system for concentrated grid-connected PV power station (at 100 MWp an d above) and corresponding solution by taking the application of H9000 computer supervisory control system in the G onghe Industrial Park Phase-III 200 MWp Grid-connected PV Power Station undertaken by Huan ghe Hydropower Development Co., Ltd. in Qinghai as an example.

Key words:H9000; PV power station; Supervisory control system; 200 MWp

Object-oriented design of data model of iP9000 intelligent integrated platform for hydropower station

WEN Zheng-guo, CHEN Xiao-song
(Beijing IWHR Technology CO., Ltd., Beijing 100038, China)

Abstract:Considering t he di sadvantage of tradit ional data mode ling mode (i.e. mainly by data poi nt definiti on) o f automation system of hydropow er station, a data modelin g method, which is object-orie nted and mainly covers objec t definition and object relation definition, is proposed for the iP9000 intelligent integrated platform of hydropower station. This paper introduces basic principl es, concept an d design meth od of object-or iented model d esign, describes key points in object-oriented model design, and proposes requirements on the database suitable for object-oriented model storage.

iP9000 intelligent integrated platform; Object-oriented; Modeling

Research on solution to security protection of H9000 supervisory control system

HAN Chang-lin
(Beijing IWHR Technology CO., Ltd., Beijing 100038, China)

Abstract:Recently, information security events have occurred in succession in the in dustrial control field and the electric power industry. To eliminate potential information security hazards of supervisory control system, according to requirements on the security of electric power system as specified in the Provisions on Security Protection of Electric Power Supervisory Control System and the A dministrative Measures for the P rotection of Information Secur ity, this pa per analyzes system vulnerabilities based on the solution of IP III security protection, elaborates the causes of vulnerabilities from the perspective of information security, and proposes a response solution to vulnerabilities.

Key words:Information secu rity o f SCADA; Secu rity p rotection sch eme; Ev aluation sch eme o f l evel o f p rotection; Information security of supervisory control

Research on condition evaluation data characteristics of hydropower unit based on probability statistics

ZHOU Ye, PAN Luo-ping, CAO Deng-feng
(China Institute of Water Resources and Hydropower Research, Beijing 100038, China)

Abstract:This paper briefly introduces the cond ition evaluation method of hydropower unit based on sound samples, proposes that a complete and sound mode l is divided into three parts (i.e. characteristic data, influence factors, and sound samples), and c onducts analysis and research on the statist ical properties of characteristic data. In this paper, sensor and signal parameters reflecting the operating conditions of unit are classified first, and then divided into basic characteristic data and c ombined characteristic data acc ording to the comp lexity of p arameter relatio nship, and c orresponding c alculation methods and selection of ch aracteristic values are also giv en respectively. Finally, statistical analysis o n the two types of characteristic data is conducted in this paper through selection of actual lon g-time operation data of hydropower station, to obtain data characteristics and influence factors. Meanwhile, relevant conclusions are also made in this paper.

Key words:Hydropower unit; Sound samples; Characteristic data; Statistical properties; Condition evaluation

Design and application of computer supervisory control system for 200 MWp PV power station

ZHANG Wei-jun, ZHANG Xian-bing, QIU Yang
(Beijing IWHR Technology CO., Ltd., Beijing 100038, China)