The Smart Way to Move Electricity In today’s world of electrical power, we need better ways to move electricity over long distances. High Voltage Direct Current (HVDC) is one of the best technologies for this job. Among all HVDC systems, the Line Commutated Converter (LCC) Classic system is the most trusted and widely used method for sending power efficiently across the globe. How HVDC LCC Classic  Work The HVDC LCC Classic system works in a special way that makes it different from newer systems. While modern Voltage Source Converter (VSC) systems change the direction of electric current to control power flow, LCC Classic does something smarter. It changes the voltage direction but keeps the current flowing in the same direction. This makes the system very strong and perfect for carrying large amounts of power. The heart of every LCC Classic system is called a 12-pulse converter. Think of it like a sophisticated electrical switch made up of two smaller 6-pulse units working together. These units have special devices called thyristor valves that turn on and off at exactly the right times to change AC electricity into smooth DC electricity. Why HVDC LCC Classic  Are So Good What makes LCC Classic systems amazing is how precisely they can control electricity flow. Regular AC power lines depend on complex electrical relationships that are hard to control. But HVDC LCC systems give operators complete control over how much power flows and in which direction. This is like having a smart traffic controller for electricity. The thyristor valves in these systems do many important jobs at once. They connect the AC side to the DC side, carry very high electric currents, protect against dangerous voltages, and stay completely controllable all the time. Each thyristor valve is like a smart switch that can stop dangerous electricity from both directions, let current flow when needed, and automatically turn off when the current drops to zero, making the whole system very safe. Handling Reactive Power – A Smart Solution One tricky part of LCC Classic systems is something called reactive power management. These converters need extra electrical energy (called reactive power) to work properly – about 50% to 60% of the main power they carry. At first, this might seem like a problem, but engineers have found clever ways to handle it. Special filters are installed on the AC side that do two jobs at once. They clean up electrical noise (called harmonics) and create the reactive power the system needs. When more power flows through the system, it needs more reactive power and creates more electrical noise, so the system automatically switches different filters on and off to keep everything balanced. Smart Control Systems The control system is like the brain of every LCC Classic setup. It uses something called a firing angle (called “alpha”) as the main control knob. This lets operators keep the right amount of current flowing even when problems happen in the electrical network. The Current Control Amplifier gives super-fast responses with almost no errors, while the Firing Control system makes sure every thyristor valve switches on at exactly the right moment. There’s also an Emergency Power Control system that acts like a safety guard. When serious problems happen in the electrical network, it automatically adjusts the power level to prevent big blackouts and system failures. Good for the Environment and Economy LCC Classic systems are great for both the environment and saving money. They can send electricity over very long distances with much less energy loss compared to regular AC power lines. For underwater cables, HVDC removes the distance limits that AC systems face, and it only needs two cables instead of three. These systems work like electrical walls between different power networks. This means if one network has problems, it won’t affect the others. This protection feature, along with precise power control, makes LCC Classic systems perfect for connecting renewable energy sources like wind and solar farms to weak electrical grids. Conclusion: Proven Technology for the Future HVDC LCC Classic systems represent many years of engineering improvements. They offer reliable performance for high-power, long-distance electricity transmission. Their smart control features, strong thyristor technology, and proven success record make them the top choice for important power projects around the world. As our electrical systems continue to grow and change, these systems will remain the foundation of global electricity networks.