1. The advantages of traditional cascade control technology

(1) Improve control accuracy：Because cascade control can maintain a more stable control environment, multi-level regulation can eliminate false temperature fluctuations in temperature control systems, thereby improving control accuracy.

(2) Improve response speed:Due to the collaborative work of multiple controllers, cascade control can respond more quickly to temperature changes. The controllers can achieve rapid temperature transfer, allowing the entire temperature control system to quickly respond to temperature changes, effectively shortening process time and reducing energy consumption and costs.

（3）Improve anti-interference performance:The secondary loop of cascade control has a fast control effect, which can effectively overcome the influence of disturbances entering the secondary loop. For example, errors caused by power grid fluctuations can be eliminated in advance based on cascade control.

2. Pain points of traditional cascade control technology

(1) Difficulty in debugging:In addition to determining the main control PID parameters, cascade control also requires determining the calibration parameters and auxiliary control PID parameters for the given values of the auxiliary control. During debugging, in addition to self-tuning the main and auxiliary controls separately, it is also necessary to set calibration parameters reasonably. Inappropriate calibration parameters can deteriorate the control effect, and even be inferior to ordinary PID. This makes on-site debugging much more complex than ordinary PID regulators.

(2) Unstable effect:

The traditional cascade control system is sensitive to parameters and unstable. Even if the system has been debugged satisfactorily, the control effect will significantly deteriorate when there are certain changes in the customer's usage environment.

3. Revolutionary breakthrough of Yudian cascade controller

(1) The debugging difficulty is greatly simplified, reducing the threshold for use：

The cascade algorithm independently developed by Yudian can achieve PID self-tuning and intelligent parameter calibration for cascade control, greatly simplifying on-site debugging work. The originally complex cascade control debugging is as simple as ordinary PID, greatly reducing the threshold for using high-performance cascade control.

(2) Based on automatic calibration and adaptive technology, the control effect is excellent：

Based on the newly developed cascade control automatic calibration adaptive technology, it can maintain excellent control effect even if the external environment and customer equipment change.

(3) More flexible design, further improving temperature control level：

The Yudian cascade temperature controller reduces the difficulty and threshold of using cascade control, providing greater flexibility for customer engineers in design and helping customers improve their temperature control level.

(4) Multi loop design, higher cost-effectiveness

The new generation of Yudian cascade temperature controller adopts a multi circuit design, further saving installation space, reducing costs, and providing higher cost-effectiveness.