The Financial and Economic Committee of the Central Committee of the Communist Party of China proposed to deepen the reform of the electric power system and establish a new electric power system primarily relying on renewable energy. New energy power generation is constrained by factors such as resources and environment. The development scale of most regions is limited, and most stations are in a distributed layout; Planning for a distributed new energy station is generally done in stages. The construction of a centralized control center is not a one-time investment, but rather a gradual and progressive process. To tackle the problems faced by the industry, CYG ET has developed a distributed PV centralized control system. The overall design of the system is based on the principle of combining far and near sites, and implementing construction in phases. The technical scheme offers certain scalability in terms of system performance, structure, and functions. As distributed power stations increase, the system can meet the needs for expansion of functions and hardware.
Distributed PV Centralized Control System
Product Overview
Product advantages
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01
Functions of real-time monitoring, statistical analysis, fault diagnosis, production management, visual display, etc. -
02
Local/private cloud-based deployment -
03
Centralized and unified data management for providing data basis for the planning, operation and decision-making of new energy enterprises -
04
Security zoning in the system, and security classification for control -
05
Efficient processing of massive data, and millisecond-level data storage -
06
Organic integration of various subsystems for realizing integrated monitoring -
07
A visual monitoring platform with C/S-B/S architecture -
08
Easy expansion and high-level integration
Technical parameters
Item | Index | |
Capacit | Number of stations connected | ≥102 |
Real-time data capacity | ≥1,200,000 | |
Control capacity | ≥100,000 | |
Calculation capacity | ≥10,000 | |
Real-time capability | Time of response of the real-time monitoring screen to a command | ≤2s |
Automatic refresh time of the screen | 1-10s (adjustable) | |
Time of automatic accident scene display | ≤10s | |
Transmission time of teleindication shift data | ≤3s | |
Time of telemetry change transmission | ≤3s | |
CPU load rate | Average CPU load rate of each computer node (within any 5 consecutive minutes) | ＜20% |
Network load rate | Load rate of LAN operation (within any 5 consecutive minutes) | ＜20% |
Reliability | Time of switching between dual machines | Hot standby≤20s; Cold standby≤10min |
Annual availability of the system | ≥99.99% | |
MTBF of key equipment | ≥30000h | |
MTBF of peripheral equipment | ≥10000h | |
Information processing indexes | SOE inter-station resolution | ≤20ms |
Synthetic error of analog telemetry | ≤1.5％ | |
Accuracy of teleindication actio | =100% | |