Power security production personal experience - Database & Sql Blog Articles

Power production is a highly complex system engineering, and ensuring safety in this process requires the integration of multiple factors. Generally speaking, there are three main types of power production accidents: first, "natural disasters" such as lightning, strong winds, heavy rain, or construction blasting—events that are often unpredictable and sudden. Second, "inherent weaknesses" in equipment or infrastructure, which may be hidden and difficult to detect. Third, "man-made disasters," which result from human error, negligence, or violations of safety protocols, often driven by carelessness or lack of awareness. Among these, man-made causes account for the majority of incidents. Those who engage in unsafe practices are not only responsible for the accidents but also often end up being the victims. However, it's important to note that most accidents do not occur with the intention of causing harm. After an incident occurs, common conclusions tend to focus on issues like weak safety awareness, poor management, low technical standards, or habitual violations. While these are valid observations, the real challenge lies in addressing the root causes of unsafe behavior and implementing practical solutions at the source. Are these deeper issues truly being prioritized by our safety departments, managers, and workers at all levels? Through years of experience and learning from past mistakes, effective rules and regulations have been developed to ensure the safety of power production. Each company has also created specific measures tailored to their operational conditions, along with targeted instructions and requirements for safety. These serve as the foundation for safe operations. However, power production is a dynamic and ever-changing field, and the people involved play a critical role in determining its success. Differences in knowledge, experience, and mindset among workers mean that safety must be internalized and turned into daily actions. This is a long-term, challenging task that requires continuous effort. The key solution lies in constant learning. First, individuals must take the initiative to learn. Safety is not just a requirement for the industry—it’s essential for the well-being of every worker. Safety regulations reflect both the objective laws of power production and the behavioral standards expected from employees. Therefore, every worker should recognize the importance of learning safety skills, which benefits both the company and themselves. This requires a commitment to understanding and following rules rather than adopting a superficial or pragmatic approach. By combining mandatory training with personal responsibility, we can build a culture of continuous learning, starting from individuals and expanding to teams. Second, effective training is crucial. In recent years, many organizations have recognized the need for better skills and stronger safety awareness among their workforce. Training programs are a powerful way to address these challenges. However, it's important to ensure that training is properly structured at all levels, from top management down to frontline workers. Often, safety policies are created at higher levels but lose effectiveness as they move down the chain. To avoid this, companies should categorize personnel, set clear training goals, and implement regular sessions. Using weekly team meetings and daily pre-shift briefings can help reinforce safety concepts and eliminate potential risks on a consistent basis. Finally, it's essential to identify and correct deviations in the production process. The key is to face problems honestly and take action before they escalate. The saying "a sharp knife doesn’t miss the woodworker" reminds us that proactive measures prevent future issues. Learning from both personal and others' experiences, treating small problems as major ones, and addressing harmful trends early on are all part of a comprehensive safety strategy. In the true sense, this reflects the principle of "safety first, prevention foremost, and comprehensive management."

Solar Energy System

Photovoltaic power generation system is the use of photovoltaic effect to convert solar energy into electricity system, its categories can be divided according to different classification standards. The following is an introduction to the main categories of photovoltaic power generation systems:

First, according to the access to the power grid classification
Grid-connected photovoltaic power generation system
Definition: Connected to the public grid, the generated electrical energy is input to the grid.
Composition: mainly includes photovoltaic array, grid-connected inverter, load and power grid. Grid-connected photovoltaic power generation systems usually do not need to configure batteries, relying on the grid for energy storage regulation.
Application scenario: Suitable for photovoltaic power generation projects of various scales, including large ground power stations, medium-sized industrial and commercial power stations and small household power stations.
Advantages: It can make full use of the power of photovoltaic array, reduce energy loss and reduce system cost. At the same time, the excess energy can be sold to the power company at a profit.
Off-grid photovoltaic power generation system
Definition: photovoltaic power generation system that is not connected to the public grid and operates independently.
Composition: Mainly includes solar modules, controllers, batteries and inverters (if AC is required).
Application scenario: It is usually built in remote areas far from the power grid or used as a mobile portable power supply in the field, such as remote mountains, no power areas, islands, communication base stations and street lights.
Advantages: not subject to regional restrictions, not dependent on the power grid, wide range of use. It can be installed and used wherever there is sunlight.
Second, classified by energy storage device
Photovoltaic power generation system with energy storage device
Features: The system contains energy storage devices such as batteries, which are used to store excess electric energy to ensure that it can still supply power when there is no light or power grid outage.
Application scenario: Applicable to situations where continuous power supply is required, such as communication base stations, hospitals, and data centers.
Photovoltaic power generation system without energy storage device
Features: The system does not contain storage devices such as batteries, and all the generated electricity is directly input into the grid or supplied to the load.
Application scenario: Applicable to areas where the power grid is stable and the light is sufficient, and where users do not have high requirements on the continuity of power supply.
3. Classification by system structure
Centralized grid-connected photovoltaic power generation system
Features: Mainly use desert and other concentrated areas to build large-scale photovoltaic power stations, power generation directly into the public grid, access to high-voltage transmission system.
Application scenario: Suitable for large-scale photovoltaic power generation projects, such as national power stations.
Distributed grid-connected photovoltaic power generation system
Features: Generally built in the vicinity of users, such as industrial plants, public buildings, residential roofs and so on. The electricity produced is mainly for the user's own use.
Application scenario: Suitable for distributed photovoltaic power generation projects of various scales, with the characteristics of small capacity and low voltage level.

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