AC Solar Pumping System
The PDS AC solar pumping system mainly consists of PV array, mounting system, combiner box, PDS solar pump controller, submersible/surface AC pump, line reactor (optional), liquid level switch and water tank (optional), shown as Figure 1.

This system does not have storage batteries, completely powered by solar energy, thus realizing a cost-effective purpose.
An appropriate water tank can be prepared to store water for later use.
High-efficient AC submersible/surface pump is adopted for the system, satisfying different requirements.
The system is characterized by Maximum Power Point Tracker technology, regulating the working of the pump automatically to realize the maximum generated energy for the system.
Automatic control is adopted for the system such as: automatic start-up and shut-off respectively in the morning and evening, automatic shut-off for full tank and water shortage in the well. Protection measures are taken for the rotation jam of the pump, 3-phase equilibrium etc., thus prolonging the service lifetime of both the pump and controller.

【PDS23】
In order to satisfy the demands of various pumping applications, the PDS23 solar controller adopts Max Power Point Tracking and proven motor drive technology to maximize power output from solar modules. It supports both DC and AC power inputs. When solar power is not available, the controller can be switched to an alternate single-phase or three-phase AC input such as a generator or inverter from battery, if available. The controller provides fault detection, motor soft start, and speed control. The PDS23 solar controller is designed to provide these features with the plug and play ease of installation.

Flexibility
Compatible with any IEC three-phase asynchronous motors
Compatible with popular solar arrays
Grid main supply optional
Smartness
Self-adaptive maximum power point tracking technology with up to 99% efficiency
Automatic regulation of pump flow
Self-adaptation to the drive used in the installation
Smart multi-pump control card optional for more efficient solar energy utilization
Cost effectiveness
Plug-and-play system design
Embedded pump functions
Battery-free for most applications
Effortless maintenance
Reliability
10-year market proven experience of leading motor and pump drive technology
Soft start feature to prevent water hammer and increase system life
Smart IGBT module integrated to simplify system design, reduce board space, simplify the manufacturing process and thus improves system reliability
Built-in overvoltage, overload, overheat and dry-run motor protection
Remote Monitoring
Standard RS485 interface equipped for each solar pump controller
Optional GPRS/Wi-Fi/Ethernet RJ45 modules for remote access
Spots value of solar pump parameters monitoring available from anywhere
History of solar pump parameters and events lookup support
Android/iOS monitoring APP support
Solar Pumping System


